texlive[69767] Build/source/texk/web2c: {,e}uptex: Copy {,e}ptex
commits+takuji at tug.org
commits+takuji at tug.org
Sat Feb 10 10:42:45 CET 2024
Revision: 69767
https://tug.org/svn/texlive?view=revision&revision=69767
Author: takuji
Date: 2024-02-10 10:42:44 +0100 (Sat, 10 Feb 2024)
Log Message:
-----------
{,e}uptex: Copy {,e}ptex source files to clean up building environment
Modified Paths:
--------------
trunk/Build/source/texk/web2c/Makefile.in
trunk/Build/source/texk/web2c/euptexdir/ChangeLog
trunk/Build/source/texk/web2c/euptexdir/am/euptex.am
trunk/Build/source/texk/web2c/uptexdir/ChangeLog
trunk/Build/source/texk/web2c/uptexdir/am/uptex.am
Added Paths:
-----------
trunk/Build/source/texk/web2c/euptexdir/char-warning-eptex.ch
trunk/Build/source/texk/web2c/euptexdir/eptex.ech
trunk/Build/source/texk/web2c/euptexdir/eptex_version.h
trunk/Build/source/texk/web2c/euptexdir/eptrip/
trunk/Build/source/texk/web2c/euptexdir/etex.ch0
trunk/Build/source/texk/web2c/euptexdir/etex.ch1
trunk/Build/source/texk/web2c/euptexdir/fam256.ch
trunk/Build/source/texk/web2c/euptexdir/pdfutils.ch
trunk/Build/source/texk/web2c/euptexdir/suppresserrors.ch
trunk/Build/source/texk/web2c/euptexdir/tests/pdfprimitive-test.tex
trunk/Build/source/texk/web2c/uptexdir/ptex-base.ch
trunk/Build/source/texk/web2c/uptexdir/ptex_version.h
trunk/Build/source/texk/web2c/uptexdir/zfmtcompress.test
Modified: trunk/Build/source/texk/web2c/Makefile.in
===================================================================
--- trunk/Build/source/texk/web2c/Makefile.in 2024-02-10 08:13:48 UTC (rev 69766)
+++ trunk/Build/source/texk/web2c/Makefile.in 2024-02-10 09:42:44 UTC (rev 69767)
@@ -3280,10 +3280,10 @@
$(euptex_web_srcs) $(euptex_ch_srcs) euptexdir/euptex.defines \
euptexdir/COPYRIGHT euptexdir/COPYRIGHT.jis \
euptexdir/ChangeLog euptexdir/EUPTEX.txt $(euptex_tests) \
- eptexdir/eptrip/eptrip.log eptexdir/eptrip/eptrip.tex \
+ euptexdir/eptrip/eptrip.log euptexdir/eptrip/eptrip.tex \
euptexdir/euptrip/euptrip.diffs euptexdir/euptrip/texmf.cnf \
euptexdir/pdfprimitive.test \
- eptexdir/tests/pdfprimitive-test.tex \
+ euptexdir/tests/pdfprimitive-test.tex \
euptexdir/tests/pdfprimitive-euptex.log hitexdir/ChangeLog \
$(hitex_web) $(hitex_tests) hitexdir/tests/hello.tex \
hitexdir/tests/rule.tex pdftexdir/regex/COPYING.LIB \
@@ -4503,7 +4503,7 @@
dist_uptex_SOURCES = uptexdir/uptexextra.c uptexdir/uptexextra.h uptexdir/uptex_version.h
# We must create uptexd.h and uptexdir/uptex_version.h before building the uptex_OBJECTS.
-uptex_prereq = uptexd.h ptexdir/ptex_version.h uptexdir/uptex_version.h
+uptex_prereq = uptexd.h uptexdir/ptex_version.h uptexdir/uptex_version.h
uptex_web_srcs = \
tex.web \
tex.ch \
@@ -4512,7 +4512,7 @@
zlib-fmt.ch
uptex_ch_srcs = \
- ptexdir/ptex-base.ch \
+ uptexdir/ptex-base.ch \
uptexdir/uptex-m.ch \
$(uptex_ch_synctex) \
tex-binpool.ch
@@ -4570,7 +4570,7 @@
# We must create euptexd.h and [eu]ptexdir/[eu]ptex_version.h before building the euptex_OBJECTS.
euptex_prereq = euptexd.h etexdir/etex_version.h \
- ptexdir/ptex_version.h eptexdir/eptex_version.h \
+ uptexdir/ptex_version.h euptexdir/eptex_version.h \
uptexdir/uptex_version.h $(am__append_146)
euptex_web_srcs = \
tex.web \
@@ -4584,20 +4584,20 @@
etexdir/tex.ech
euptex_ch_srcs = \
- eptexdir/etex.ch0 \
- ptexdir/ptex-base.ch \
+ euptexdir/etex.ch0 \
+ uptexdir/ptex-base.ch \
uptexdir/uptex-m.ch \
euptexdir/euptex.ch0 \
- eptexdir/eptex.ech \
- eptexdir/etex.ch1 \
+ euptexdir/eptex.ech \
+ euptexdir/etex.ch1 \
euptexdir/euptex.ch1 \
$(euptex_ch_synctex) \
- eptexdir/fam256.ch \
+ euptexdir/fam256.ch \
euptexdir/pdfstrcmp-eup-pre.ch \
- eptexdir/pdfutils.ch \
+ euptexdir/pdfutils.ch \
euptexdir/pdfstrcmp-eup-post.ch \
- eptexdir/suppresserrors.ch \
- eptexdir/char-warning-eptex.ch \
+ euptexdir/suppresserrors.ch \
+ euptexdir/char-warning-eptex.ch \
tex-binpool.ch
Modified: trunk/Build/source/texk/web2c/euptexdir/ChangeLog
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/ChangeLog 2024-02-10 08:13:48 UTC (rev 69766)
+++ trunk/Build/source/texk/web2c/euptexdir/ChangeLog 2024-02-10 09:42:44 UTC (rev 69767)
@@ -1,3 +1,13 @@
+2024-02-10 TANAKA Takuji <ttk at t-lab.opal.ne.jp>
+
+ * eptex_version.h, eptex.ech, etex.ch{0,1},
+ {char-warning-eptex,fam256,pdfutils,suppresserrors}.ch,
+ eptrip/eptrip.{diffs,log,tex}, eptrip/texmf.cnf,
+ tests/pdfprimitive-test.tex, am/euptex.am:
+ Copy eptex source files from ../eptexdir
+ to cleaning up building environment.
+ https://github.com/texjporg/tex-jp-build/issues/32
+
2023-12-24 TANAKA Takuji <ttk at t-lab.opal.ne.jp>
* wcfname{,0}.test:
Modified: trunk/Build/source/texk/web2c/euptexdir/am/euptex.am
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/am/euptex.am 2024-02-10 08:13:48 UTC (rev 69766)
+++ trunk/Build/source/texk/web2c/euptexdir/am/euptex.am 2024-02-10 09:42:44 UTC (rev 69767)
@@ -33,8 +33,8 @@
dist_euptex_SOURCES = euptexdir/euptexextra.c euptexdir/euptexextra.h
# We must create euptexd.h and [eu]ptexdir/[eu]ptex_version.h before building the euptex_OBJECTS.
-euptex_prereq = euptexd.h etexdir/etex_version.h ptexdir/ptex_version.h \
- eptexdir/eptex_version.h uptexdir/uptex_version.h
+euptex_prereq = euptexd.h etexdir/etex_version.h uptexdir/ptex_version.h \
+ euptexdir/eptex_version.h uptexdir/uptex_version.h
$(euptex_OBJECTS): $(euptex_prereq)
$(euptex_c_h): euptex-web2c
@@ -69,20 +69,20 @@
euptex.ch: tie$(EXEEXT) euptex.web $(euptex_ch_srcs)
$(tie_c) euptex.web $(euptex_ch_srcs)
euptex_ch_srcs = \
- eptexdir/etex.ch0 \
- ptexdir/ptex-base.ch \
+ euptexdir/etex.ch0 \
+ uptexdir/ptex-base.ch \
uptexdir/uptex-m.ch \
euptexdir/euptex.ch0 \
- eptexdir/eptex.ech \
- eptexdir/etex.ch1 \
+ euptexdir/eptex.ech \
+ euptexdir/etex.ch1 \
euptexdir/euptex.ch1 \
$(euptex_ch_synctex) \
- eptexdir/fam256.ch \
+ euptexdir/fam256.ch \
euptexdir/pdfstrcmp-eup-pre.ch \
- eptexdir/pdfutils.ch \
+ euptexdir/pdfutils.ch \
euptexdir/pdfstrcmp-eup-post.ch \
- eptexdir/suppresserrors.ch \
- eptexdir/char-warning-eptex.ch \
+ euptexdir/suppresserrors.ch \
+ euptexdir/char-warning-eptex.ch \
tex-binpool.ch
EXTRA_DIST += $(euptex_web_srcs) $(euptex_ch_srcs) euptexdir/euptex.defines
@@ -123,8 +123,8 @@
##
## euptexdir/euptriptest.test
EXTRA_DIST += \
- eptexdir/eptrip/eptrip.log \
- eptexdir/eptrip/eptrip.tex \
+ euptexdir/eptrip/eptrip.log \
+ euptexdir/eptrip/eptrip.tex \
euptexdir/euptrip/euptrip.diffs \
euptexdir/euptrip/texmf.cnf
euptrip.diffs: euptex$(EXEEXT) dvitype$(EXEEXT) pltotf$(EXEEXT) tftopl$(EXEEXT)
@@ -136,7 +136,7 @@
## euptexdir/pdfprimitive.test
EXTRA_DIST += \
euptexdir/pdfprimitive.test \
- eptexdir/tests/pdfprimitive-test.tex \
+ euptexdir/tests/pdfprimitive-test.tex \
euptexdir/tests/pdfprimitive-euptex.log
DISTCLEANFILES += pdfprimitive-euptex.*
Copied: trunk/Build/source/texk/web2c/euptexdir/char-warning-eptex.ch (from rev 69765, trunk/Build/source/texk/web2c/eptexdir/char-warning-eptex.ch)
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/char-warning-eptex.ch (rev 0)
+++ trunk/Build/source/texk/web2c/euptexdir/char-warning-eptex.ch 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,101 @@
+% $Id$
+% Public domain. See ../pdftexdir/char-warning-pdftex.ch for info.
+
+ at x [30] If \tracinglostchars > 2, then promote full errors.
+ at p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
+var @!l:0..255; {small indices or counters}
+old_setting: integer; {saved value of |tracing_online|}
+begin if tracing_lost_chars>0 then
+ begin old_setting:=tracing_online;
+ if eTeX_ex and(tracing_lost_chars>1) then tracing_online:=1;
+ begin begin_diagnostic;
+ print_nl("Missing character: There is no ");
+ at .Missing character@>
+ if (c<" ")or(c>"~") then
+ begin print_char("^"); print_char("^");
+ if c<64 then print_char(c+64)
+ else if c<128 then print_char(c-64)
+ else begin print_lc_hex(c div 16); print_lc_hex(c mod 16); end
+ end
+ else print_ASCII(c);
+ print(" in font ");
+ slow_print(font_name[f]); print_char("!"); end_diagnostic(false);
+ end;
+ tracing_online:=old_setting;
+ end;
+end;
+ at y
+ at p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
+var @!l:0..255; {small indices or counters}
+old_setting: integer; {saved value of |tracing_online|}
+begin if tracing_lost_chars>0 then
+ begin old_setting:=tracing_online;
+ if eTeX_ex and(tracing_lost_chars>1) then tracing_online:=1;
+ if tracing_lost_chars > 2 then
+ print_err("Missing character: There is no ")
+ else begin
+ begin_diagnostic;
+ print_nl("Missing character: There is no ")
+ end;
+ at .Missing character@>
+ if (c<" ")or(c>"~") then begin
+ print_char("^"); print_char("^");
+ if c<64 then print_char(c+64)
+ else if c<128 then print_char(c-64)
+ else begin print_lc_hex(c div 16); print_lc_hex(c mod 16); end
+ end
+ else print_ASCII(c);
+ if tracing_lost_chars > 2 then begin
+ print(" (");
+ print_hex(c);
+ print(")");
+ end;
+ print(" in font ");
+ slow_print(font_name[f]);
+ if tracing_lost_chars < 3 then print_char("!");
+ tracing_online:=old_setting;
+ if tracing_lost_chars > 2 then begin
+ help0;
+ error;
+ end else end_diagnostic(false);
+ end; {of |tracing_lost_chars>0|}
+end; {of procedure}
+ at z
+
+ at x [30] Another warning for (u)pTeX.
+ at p procedure char_warning_jis(@!f:internal_font_number;@!jc:KANJI_code);
+begin if tracing_lost_chars>0 then
+ begin begin_diagnostic;
+ print_nl("Character "); print_kanji(jc); print(" (");
+ print_hex(jc); print(") cannot be typeset in JIS-encoded JFM ");
+ slow_print(font_name[f]);
+ print_char(","); print_nl("so I use .notdef glyph instead.");
+ end_diagnostic(false);
+ end;
+end;
+ at y
+ at p procedure char_warning_jis(@!f:internal_font_number;@!jc:KANJI_code);
+var old_setting: integer; {saved value of |tracing_online|}
+begin if tracing_lost_chars>0 then
+ begin old_setting:=tracing_online;
+ if eTeX_ex and(tracing_lost_chars>1) then tracing_online:=1;
+ if tracing_lost_chars > 2 then
+ print_err("Character ")
+ else begin
+ begin_diagnostic;
+ print_nl("Character ")
+ end;
+ print_kanji(jc); print(" (");
+ print_hex(jc); print(") cannot be typeset in JIS-encoded JFM ");
+ slow_print(font_name[f]);
+ print_char(",");
+ if tracing_lost_chars > 2 then
+ begin print_nl(" so I use .notdef glyph instead");
+ help0; error; end
+ else
+ begin print_nl("so I use .notdef glyph instead.");
+ end_diagnostic(false); end;
+ tracing_online:=old_setting;
+ end; {of |tracing_lost_chars>0|}
+end; {of procedure}
+ at z
Copied: trunk/Build/source/texk/web2c/euptexdir/eptex.ech (from rev 69765, trunk/Build/source/texk/web2c/eptexdir/eptex.ech)
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/eptex.ech (rev 0)
+++ trunk/Build/source/texk/web2c/euptexdir/eptex.ech 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,804 @@
+% eptexdir/eptex.ech: changefile used to build e-pTeX, see eptexdir/eptex-base.ch for details.
+% Public domain. Originally written by Peter Breitenlohner <tex-live at tug.org>.
+
+%% new primitives by e-pTeX
+%%
+%% \epTeXversion
+%% \epTeXinputencoding <euc|sjis|jis|utf8>
+%%
+%% \currentspacingmode: 1 iff auto_spacing
+%% \currentxspacingmode: 1 iff auto_xspacing
+%% \lastnodechar: the (internal) character code of the last node
+%% -1: non-character or null
+%% \lastnodesubtype: the (internal) subtype of the last node
+%% note: returns a value from the type if the node is s math noad.
+%% -1: null
+%% fallback to 0 if not explicitly set
+%% \readpapersizespecial
+%% 1: papersize special automatically sets \pdfpage{width,height} (quick hack).
+%% 0: off
+%% The default value is 1.
+%%
+
+ at x e-pTeX: logo
+\def\eTeX{$\varepsilon$-\TeX}
+ at y
+\def\eTeX{$\varepsilon$-\TeX}
+\def\epTeX{$\varepsilon$-\pTeX}
+ at z
+
+ at x [1.2] l.190 - epTeX:
+ at d eTeX_version_string=='-2.6' {current \eTeX\ version}
+ at y
+ at d eTeX_version_string=='-2.6' {current \eTeX\ version}
+@#
+ at d epTeX_version_string=='-230214'
+ at d epTeX_version_number==230214
+ at z
+
+ at x e-pTeX: banner
+ {printed when \pTeX\ starts}
+ at y
+ {printed when \pTeX\ starts}
+@#
+ at d epTeX_version==pTeX_version_string,epTeX_version_string,eTeX_version_string
+ at d epTeX_banner=='This is e-pTeX, Version 3.141592653',epTeX_version
+ at d epTeX_banner_k==epTeX_banner
+ {printed when \epTeX\ starts}
+ at z
+
+ at x [1.2]
+ at d banner==pTeX_banner
+ at d banner_k==pTeX_banner_k
+ at y
+ at d banner==epTeX_banner
+ at d banner_k==epTeX_banner_k
+ at z
+
+ at x [10.135] l.2895 - e-pTeX: box_lr and box_dir
+In \eTeX\ the |subtype| field records the box direction mode |box_lr|.
+ at y
+In \eTeX\ the |subtype| field records the box direction mode |box_lr|.
+In \epTeX\ the |subtype| field is |qi(16*box_lr+box_dir)|.
+ at z
+
+ at x
+ at d box_dir(#) == (qo(subtype(#))-dir_max) {direction of a box}
+ at d set_box_dir(#) == subtype(#):=set_box_dir_end
+ at y
+ at d box_dir(#) == ((qo(subtype(#)))mod 16 - dir_max) {direction of a box}
+ at d set_box_dir(#) == subtype(#):=box_lr(#)*16+set_box_dir_end
+ at z
+
+ at x [17]
+ at d saving_hyph_codes_code=etex_int_base+8 {save hyphenation codes for languages}
+ at d eTeX_state_code=etex_int_base+9 {\eTeX\ state variables}
+ at y
+ at d saving_hyph_codes_code=etex_int_base+8 {save hyphenation codes for languages}
+ at d read_papersize_special_code=etex_int_base+9
+ at d eTeX_state_code=etex_int_base+10 {\eTeX\ state variables}
+ at z
+
+ at x [17]
+ at d saving_hyph_codes==int_par(saving_hyph_codes_code)
+ at y
+ at d saving_hyph_codes==int_par(saving_hyph_codes_code)
+ at d read_papersize_special==int_par(read_papersize_special_code)
+ at z
+
+ at x [26.???] prepare for |scan_font_ident| to recognize \lastnodefont
+ at p procedure@?scan_int; forward; {scans an integer value}
+ at y
+ at p procedure@?scan_int; forward; {scans an integer value}
+procedure@?scan_something_internal_ident; forward;
+ at z
+
+ at x [26.413] l.8343 - e-pTeX: scan_something_internal
+var m:halfword; {|chr_code| part of the operand token}
+ at y
+label exit;
+var m:halfword; {|chr_code| part of the operand token}
+ at z
+
+ at x [26.???] add |scan_something_internal_ident| (used in |scan_font_ident|)
+@<Fix the reference count, if any, and negate |cur_val| if |negative|@>;
+end;
+ at y
+@<Fix the reference count, if any, and negate |cur_val| if |negative|@>;
+end;
+
+@ @p procedure scan_something_internal_ident;
+ begin scan_something_internal(ident_val,false); end;
+ at z
+
+ at x
+ at d input_line_no_code=glue_val+2 {code for \.{\\inputlineno}}
+ at d badness_code=glue_val+2 {code for \.{\\badness}}
+ at y
+ at d last_node_subtype_code=glue_val+2 {code for \.{\\lastnodesubtype}}
+ at d last_node_char_code=glue_val+3 {code for \.{\\lastnodechar}}
+ at d last_node_font_code=glue_val+4 {code for \.{\\lastnodefont}}
+ at d input_line_no_code=glue_val+5 {code for \.{\\inputlineno}}
+ at d badness_code=glue_val+6 {code for \.{\\badness}}
+ at z
+
+ at x
+ at d ptex_minor_version_code=ptex_version_code+1 {code for \.{\\ptexminorversion}}
+ at y
+ at d eptex_version_code=ptex_version_code+1 {code for \.{\\epTeXversion}}
+ at d ptex_minor_version_code=eptex_version_code+1 {code for \.{\\ptexminorversion}}
+ at z
+
+ at x e-pTeX: \current(x)spacingmode
+ at d eTeX_dim=eTeX_int+8 {first of \eTeX\ codes for dimensions}
+ at y
+ at d eTeX_dim=eTeX_int+10 {first of \eTeX\ codes for dimensions}
+ at z
+
+ at x
+primitive("ptexminorversion",last_item,ptex_minor_version_code);
+@!@:ptexminorversion_}{\.{\\ptexminorversion} primitive@>
+ at y
+primitive("epTeXversion",last_item,eptex_version_code);
+@!@:epTeXversion_}{\.{\\epTeXversion} primitive@>
+primitive("ptexminorversion",last_item,ptex_minor_version_code);
+@!@:ptexminorversion_}{\.{\\ptexminorversion} primitive@>
+ at z
+
+ at x
+ ptex_minor_version_code: print_esc("ptexminorversion");
+ at y
+ eptex_version_code: print_esc("epTeXversion");
+ ptex_minor_version_code: print_esc("ptexminorversion");
+ at z
+
+ at x [26.420] l.8474 - pTeX: Fetch a box dimension: dir_node
+begin scan_eight_bit_int; q:=box(cur_val);
+ at y
+begin scan_register_num; fetch_box(q);
+ at z
+
+ at x [26.424] l.8508 - e-pTeX: TeXXeT and disp_node
+node of the current list.
+ at y
+node of the current list.
+The macro |find_effective_tail_epTeX| sets |tx| to the last non-\.{\\endM}
+non-|disp_node| of the current list.
+ at z
+
+ at x [26.424] l.8510 - e-pTeX: last node
+ at d find_effective_tail==find_effective_tail_pTeX
+ at y
+ at d find_effective_tail_epTeX==
+tx:=tail;
+if not is_char_node(tx) then if type(tx)=disp_node then tx:=prev_node;
+if not is_char_node(tx) then
+ if (type(tx)=disp_node) {|disp_node| from a discretionary}
+ or((type(tx)=math_node)and(subtype(tx)=end_M_code)) then
+ begin r:=head; q:=link(head);
+ while q<>tx do
+ begin if is_char_node(q) then r:=q
+ else if (type(q)<>disp_node)and
+ ((type(q)<>math_node)or(subtype(q)<>end_M_code)) then r:=q;
+ q:=link(q);
+ end;
+ tx:=r;
+ end
+@#
+ at d find_effective_tail==find_effective_tail_epTeX
+@#
+ at d find_last_char==
+if font_dir[font(tx)]<>dir_default then cur_val:=KANJI(info(link(tx)))
+else cur_val:=qo(character(tx))
+
+ at d ignore_font_kerning==
+begin if ((type(tx)=glue_node) and (subtype(tx)=jfm_skip+1))
+ or ((type(tx)=penalty_node) and (subtype(tx)=kinsoku_pena)) then
+ tx:=last_jchr
+else if (type(tx)=kern_node) and (subtype(tx)=normal) then
+ begin r:=head; q:=link(head);
+ while q<>tx do
+ begin r:=q;
+ if is_char_node(q) then if font_dir[font(q)]<>dir_default then q:=link(q);
+ q:=link(q);
+ end;
+ if ((type(r)=penalty_node) and (subtype(r)=kinsoku_pena)) then tx:=last_jchr else tx:=r;
+ end;
+end
+ at z
+
+ at x
+ ptex_minor_version_code: cur_val:=pTeX_minor_version;
+ at y
+ eptex_version_code: cur_val:=epTeX_version_number;
+ ptex_minor_version_code: cur_val:=pTeX_minor_version;
+ at z
+
+ at x [26.424] e-pTeX: node char
+ if cur_chr=last_node_type_code then
+ begin cur_val_level:=int_val;
+ if (tx=head)or(mode=0) then cur_val:=-1;
+ end
+ else cur_val_level:=cur_chr;
+ at y
+ if (cur_chr=last_node_type_code)or(cur_chr=last_node_subtype_code) then
+ begin cur_val_level:=int_val;
+ if (tx=head)or(mode=0) then cur_val:=-1;
+ end
+ else if cur_chr=last_node_char_code then
+ begin cur_val_level:=int_val; cur_val:=-1;
+ end
+ else if cur_chr=last_node_font_code then
+ begin cur_val_level:=ident_val; cur_val:=null_font+font_id_base;
+ end
+ else cur_val_level:=cur_chr;
+ if (cur_chr=last_node_char_code)or(cur_chr=last_node_font_code) then
+ if is_char_node(tx)and(tx<>head) then begin
+ { |tx| might be ``second node'' of a KANJI character; so we need to look the node before |tx| }
+ r:=head; q:=head;
+ while q<>tx do begin r:=q; q:=link(q); end; { |r| is the node just before |tx| }
+ if (r<>head)and is_char_node(r) then if font_dir[font(r)]<>dir_default then tx:=r;
+ if cur_chr=last_node_char_code then find_last_char
+ else cur_val:=font(tx)+font_id_base;
+ end;
+ at z
+
+ at x [26.424] e-pTeX: node types
+ last_node_type_code: if type(tx)<=unset_node then cur_val:=type(tx)+1
+ else cur_val:=unset_node+2;
+ at y
+ last_node_type_code: if type(tx)<=unset_node then
+ begin if type(tx)=dir_node then tx:=list_ptr(tx);
+ cur_val:=type(tx);
+ if cur_val<dir_node then cur_val:=cur_val+1
+ else if cur_val>disp_node then cur_val:=cur_val-1;
+ end
+ else cur_val:=unset_node; {\epTeX's |unset_node| is \eTeX's |unset_node+2|}
+ last_node_subtype_code: if type(tx)<=unset_node then cur_val:=subtype(tx)
+ { non-math nodes }
+ else begin
+ cur_val:=type(tx);
+ if cur_val<unset_node+4 then cur_val:=cur_val-unset_node-1
+ { |style_noad|, |choice_noad|, |ord_noad| }
+ else if cur_val=unset_node+4 then cur_val:=cur_val-unset_node-1+subtype(tx)
+ else cur_val:=cur_val-unset_node+1;
+ end;
+ last_node_char_code: begin
+ ignore_font_kerning;
+ if is_char_node(tx) then
+ find_last_char
+ else if type(tx)=ligature_node then
+ {decompose a ligature to original characters}
+ begin r:=lig_ptr(tx);
+ while link(r)<>null do r:=link(r);
+ cur_val:=qo(character(r));
+ end
+ {else: already -1}
+ end;
+ last_node_font_code: begin
+ ignore_font_kerning;
+ if is_char_node(tx) then
+ cur_val:=font(tx)+font_id_base
+ else if type(tx)=ligature_node then
+ cur_val:=font(lig_char(tx))+font_id_base
+ {else: already nullfont}
+ end;
+ at z
+
+ at x
+ last_node_type_code: cur_val:=last_node_type;
+ at y
+ last_node_type_code: cur_val:=last_node_type;
+ last_node_subtype_code: cur_val:=last_node_subtype;
+ at z
+
+ at x e-pTeX: if primitives - leave room for three e-TeX codes
+ at d if_tdir_code=if_case_code+1 { `\.{\\iftdir}' }
+ at y
+ at d if_tdir_code=if_case_code+4 { `\.{\\iftdir}' }
+ at z
+
+ at x [30.???] |scan_font_ident|: recognize \lastnodefont
+else begin print_err("Missing font identifier");
+ at y
+else if (cur_cmd=last_item)and(cur_chr=last_node_font_code) then
+ begin scan_something_internal_ident; f:=cur_val-font_id_base;
+ end
+else begin print_err("Missing font identifier");
+ at z
+
+ at x
+ at d box_lr(#) == (qo(subtype(#))) {direction mode of a box}
+ at d set_box_lr(#) == subtype(#):=set_box_lr_end
+ at d set_box_lr_end(#) == qi(#)
+ at y
+ at d box_lr(#) == ((qo(subtype(#)))div 16) {direction mode of a box}
+ at d set_box_lr(#) == subtype(#):=box_dir(#)+dir_max+set_box_lr_end
+ at d set_box_lr_end(#) == qi(16*(#))
+ at z
+
+ at x [35]
+@<Initialize table entries...@>=
+text_baseline_shift_factor:=1000;
+ at y
+@<Initialize table entries...@>=
+text_baseline_shift_factor:=1000;
+read_papersize_special:=1;
+ at z
+
+ at x
+@!last_node_type:integer; {used to implement \.{\\lastnodetype}}
+ at y
+@!last_node_type:integer; {used to implement \.{\\lastnodetype}}
+@!last_node_subtype:integer; {used to implement \.{\\lastnodesubtype}}
+ at z
+
+ at x
+last_node_type:=-1;
+ at y
+last_node_type:=-1; last_node_subtype:=-1;
+ at z
+
+ at x [45.996] l.19420
+last_node_type:=type(p)+1;
+ at y
+if type(p)<dir_node then last_node_type:=type(p)+1
+else if type(p)=dir_node then last_node_type:=type(list_ptr(p))+1
+else if type(p)<disp_node then last_node_type:=type(p)
+else last_node_type:=type(p)-1; {no |disp_node| in a vertical list}
+last_node_subtype:=subtype(p);
+ at z
+
+ at x [47.1079] l.20920
+@!fd:boolean; {a final |disp_node| pair?}
+ at y
+@!s:pointer; {running behind |r|}
+@!t:pointer;
+@!fm:integer; {1: if |r|, 2: if |p| is a \.{\\beginM} node}
+@!gm:integer; {1: if |link(q)|, 2: if |q| is an \.{\\endM} node}
+@!fd,@!gd:integer; {same for |disp_node|}
+ at z
+
+ at x [47.1080] l.20940
+ at d check_effective_tail==check_effective_tail_pTeX
+ at d fetch_effective_tail==fetch_effective_tail_pTeX
+ at y
+ at d fetch_effective_tail_epTeX(#)== {extract |tx|,
+ drop \.{\\beginM} \.{\\endM} pair and\slash or merge |disp_node| pair}
+q:=head; p:=null; r:=null; fm:=0; fd:=0; disp:=0; pdisp:=0;
+repeat s:=r; r:=p; p:=q; fm:=fm div 2; fd:=fd div 2;
+if not is_char_node(q) then
+ if type(q)=disc_node then
+ begin for m:=1 to replace_count(q) do
+ begin p:=link(p); if p=tx then #; end
+ { |tx| might be a part of discretionary; in this case, nothing will be removed}
+ end
+ else if (type(q)=math_node)and(subtype(q)=begin_M_code) then fm:=2
+ else if type(q)=disp_node then
+ begin pdisp:=disp; disp:=disp_dimen(q); fd:=2;@+end;
+q:=link(p);
+until q=tx; {found |s|$\to$|r|$\to$|p|$\to$|q=tx|}
+q:=link(tx); link(p):=q; link(tx):=null;
+if q=null then begin tail:=p; gm:=0; gd:=0;@+end
+else begin if type(q)=math_node then
+ begin gm:=2;
+ if link(q)=null then gd:=0
+ else if type(link(q))=disp_node then gd:=1
+ else confusion("tail3");
+@:this can't happen tail3}{\quad tail3@>
+ end
+ else if type(q)=disp_node then
+ begin prev_node:=p; gd:=2;
+ if link(q)=null then gm:=0
+ else if type(link(q))=math_node then gm:=1
+ else confusion("tail4");
+@:this can't happen tail4}{\quad tail4@>
+ end
+ else confusion("tail5");
+@:this can't happen tail5}{\quad tail5@>
+ end;
+if gm=0 then if fm=2 then confusion("tail1")
+@:this can't happen tail1}{\quad tail1@>
+ else if fm=1 then confusion("tail2");
+@:this can't happen tail2}{\quad tail2@>
+if (fm+fd)=1 then begin fm:=0; fd:=0;@+end;
+if gm=0 then fm:=0;
+if gd=0 then fd:=0;
+@#
+if fd>0 then {merge a |disp_node| pair}
+ begin if gm=0 then {|p|$\to$|q=disp_node|$to$|null|}
+ begin t:=q; q:=null; link(p):=q; tail:=p;@+end
+ else if gm=1 then {|p|$\to$|q=disp_node|$to$|end_M|$to$|null|}
+ begin t:=q; q:=link(q); link(p):=q; gm:=2;@+end
+ else {|p|$\to$|q=end_M|$\to$|disp_node|$to$|null|}
+ begin t:=link(q); link(q):=null; tail:=q;@+end;
+@#
+ if fd=1 then {|s|$\to$|r=disp_node|}
+ begin prev_node:=s; disp_dimen(r):=disp_dimen(t);@+end
+ else {|r|$\to$|p=disp_node|}
+ begin prev_node:=r; disp_dimen(p):=disp_dimen(t);@+end;
+ prev_disp:=pdisp; free_node(t,small_node_size); gd:=0;
+ end;
+@#
+if fm>0 then {drop \.{\\beginM} \.{\\endM} pair}
+ begin if gd=0 then {|p|$\to$|q=end_M|$to$|null|}
+ begin t:=q; q:=null; link(p):=q; tail:=p;@+end
+ else if gd=1 then {|p|$\to$|q=end_M|$to$|disp_node|$to$|null|}
+ begin t:=q; q:=link(q); link(p):=q; prev_node:=p; link(t):=null
+ end
+ else {|p|$\to$|q=disp_node|$\to$|end_M|$to$|null|}
+ begin t:=link(q); link(q):=null; tail:=q;@+end;
+@#
+ if fm=1 then {|s|$\to$|r=begin_M|$\to$|p=disp_node|}
+ begin link(s):=p; link(r):=t; t:=r; prev_node:=s;@+end
+ else {|r|$\to$|p=begin_M|$\to$|q|}
+ begin link(r):=q; link(p):=t; t:=p;
+ if q=null then tail:=r at +else prev_node:=r;
+ end;
+ flush_node_list(t);
+ end
+@#
+ at d check_effective_tail(#)==find_effective_tail_epTeX
+ at d fetch_effective_tail==fetch_effective_tail_epTeX
+ at z
+
+ at x [47.1105] l.21246
+@!fd:boolean; {a final |disp_node| pair?}
+ at y
+@!s:pointer; {running behind |r|}
+@!t:pointer;
+@!fm:integer; {1: if |r|, 2: if |p| is a \.{\\beginM} node}
+@!gm:integer; {1: if |link(q)|, 2: if |q| is an \.{\\endM} node}
+@!fd,@!gd:integer; {same for |disp_node|}
+ at z
+
+ at x
+ at d set_language_code=5 {command modifier for \.{\\setlanguage}}
+ at y
+ at d set_language_code=5 {command modifier for \.{\\setlanguage}}
+ at d epTeX_input_encoding_code=6 {command modifier for \.{\\epTeXinputencoding}}
+ at z
+
+ at x
+primitive("setlanguage",extension,set_language_code);@/
+@!@:set_language_}{\.{\\setlanguage} primitive@>
+ at y
+primitive("setlanguage",extension,set_language_code);@/
+@!@:set_language_}{\.{\\setlanguage} primitive@>
+primitive("epTeXinputencoding",extension,epTeX_input_encoding_code);@/
+@!@:epTeX_input_encoding_}{\.{\\epTeXinputencoding} primitive@>
+ at z
+
+ at x
+ set_language_code:print_esc("setlanguage");
+ at y
+ set_language_code:print_esc("setlanguage");
+ epTeX_input_encoding_code:print_esc("epTeXinputencoding");
+ at z
+
+ at x
+set_language_code:@<Implement \.{\\setlanguage}@>;
+ at y
+set_language_code:@<Implement \.{\\setlanguage}@>;
+epTeX_input_encoding_code:@<Implement \.{\\epTeXinputencoding}@>;
+ at z
+
+ at x
+@ @<Finish the extensions@>=
+ at y
+@ @<Declare procedures needed in |do_ext...@>=
+procedure eptex_set_input_encoding;
+var j,k:integer;
+begin
+ scan_file_name;
+ pack_cur_name;
+ if state=token_list then
+ begin k:=input_ptr-1; j:=-1;
+ while k>=0 do
+ begin if input_stack[k].state_field=token_list then decr(k)
+ else if input_stack[k].name_field>19 then
+ begin j:=input_stack[k].index_field; k:=-1; end
+ else begin j:=-(input_stack[k].name_field+1); k:=-1; end
+ end
+ end
+ else if name>19 then j:=index else j:=-(name+1);
+ if (j>=0) or (j=-1) or (j=-18) then begin
+ k:=true;
+ if j>=0 then k:=setinfileenc(input_file[j],stringcast(name_of_file+1))
+ else k:=setstdinenc(stringcast(name_of_file+1));
+ if k = false then
+ begin begin_diagnostic;
+ print_nl("Unknown encoding `");
+ slow_print(cur_area); slow_print(cur_name); slow_print(cur_ext);
+ print("'"); end_diagnostic(false);
+ end
+ end
+ else
+ begin begin_diagnostic; j:=-j-1;
+ print_ln;
+ print_nl("Warning: \epTeXinputencoding is ignored, since I am current reading");
+ print_nl("from ");
+ if j>=18 then print("a pseudo file created by \scantokens.")
+ else begin print("input stream "); print_int(j); print("."); end;
+ end_diagnostic(false);
+ end
+end;
+
+@ @<Implement \.{\\epTeXinputencoding}@>=
+eptex_set_input_encoding
+
+@ @<Finish the extensions@>=
+ at z
+
+ at x
+primitive("lastnodetype",last_item,last_node_type_code);
+@!@:last_node_type_}{\.{\\lastnodetype} primitive@>
+ at y
+primitive("lastnodetype",last_item,last_node_type_code);
+@!@:last_node_type_}{\.{\\lastnodetype} primitive@>
+primitive("lastnodesubtype",last_item,last_node_subtype_code);
+@!@:last_node_subtype_}{\.{\\lastnodesubtype} primitive@>
+primitive("lastnodechar",last_item,last_node_char_code);
+@!@:last_node_char_}{\.{\\lastnodechar} primitive@>
+primitive("lastnodefont",last_item,last_node_font_code);
+@!@:last_node_font_}{\.{\\lastnodefont} primitive@>
+ at z
+
+ at x
+last_node_type_code: print_esc("lastnodetype");
+ at y
+last_node_type_code: print_esc("lastnodetype");
+last_node_subtype_code: print_esc("lastnodesubtype");
+last_node_char_code: print_esc("lastnodechar");
+last_node_font_code: print_esc("lastnodefont");
+ at z
+
+ at x
+primitive("savinghyphcodes",assign_int,int_base+saving_hyph_codes_code);@/
+@!@:saving_hyph_codes_}{\.{\\savinghyphcodes} primitive@>
+ at y
+primitive("savinghyphcodes",assign_int,int_base+saving_hyph_codes_code);@/
+@!@:saving_hyph_codes_}{\.{\\savinghyphcodes} primitive@>
+primitive("readpapersizespecial",assign_int,int_base+read_papersize_special_code);@/
+@!@:read_papersize_special_}{\.{\\readpapersizespecial} primitive@>
+ at z
+
+ at x
+saving_hyph_codes_code:print_esc("savinghyphcodes");
+ at y
+saving_hyph_codes_code:print_esc("savinghyphcodes");
+read_papersize_special_code:print_esc("readpapersizespecial");
+ at z
+
+ at x e-pTeX: font_char_{wd,ht,dp,ic}_code l.27306
+font_char_ic_code: begin scan_font_ident; q:=cur_val; scan_char_num;
+ if (font_bc[q]<=cur_val)and(font_ec[q]>=cur_val) then
+ begin i:=char_info(q)(qi(cur_val));
+ case m of
+ font_char_wd_code: cur_val:=char_width(q)(i);
+ font_char_ht_code: cur_val:=char_height(q)(height_depth(i));
+ font_char_dp_code: cur_val:=char_depth(q)(height_depth(i));
+ font_char_ic_code: cur_val:=char_italic(q)(i);
+ end; {there are no other cases}
+ end
+ else cur_val:=0;
+ end;
+ at y
+font_char_ic_code: begin scan_font_ident; q:=cur_val;
+ if font_dir[q]<>dir_default then {Japanese font}
+ begin scan_int;
+ if cur_val>=0 then
+ begin if is_char_kanji(cur_val) then {Japanese Character}
+ cur_val:=get_jfm_pos(KANJI(cur_val),q)
+ else cur_val:=-1
+ end
+ else begin
+ cur_val:=-(cur_val+1);
+ if (font_bc[q]>cur_val)or(font_ec[q]<cur_val) then cur_val:=-1
+ end;
+ if cur_val<>-1 then
+ begin
+ i:=orig_char_info(q)(qi(cur_val));
+ case m of
+ font_char_wd_code: cur_val:=char_width(q)(i);
+ font_char_ht_code: cur_val:=char_height(q)(height_depth(i));
+ font_char_dp_code: cur_val:=char_depth(q)(height_depth(i));
+ font_char_ic_code: cur_val:=char_italic(q)(i);
+ end; {there are no other cases}
+ end
+ else cur_val:=0;
+ end
+ else begin scan_ascii_num;
+ if (font_bc[q]<=cur_val)and(font_ec[q]>=cur_val) then
+ begin i:=orig_char_info(q)(qi(cur_val));
+ case m of
+ font_char_wd_code: cur_val:=char_width(q)(i);
+ font_char_ht_code: cur_val:=char_height(q)(height_depth(i));
+ font_char_dp_code: cur_val:=char_depth(q)(height_depth(i));
+ font_char_ic_code: cur_val:=char_italic(q)(i);
+ end; {there are no other cases}
+ end
+ else cur_val:=0;
+ end
+ end;
+ at z
+
+ at x e-pTeX: displacement value when typesetting right-to-left l.27798
+@!LR_ptr:pointer; {stack of LR codes for |hpack|, |ship_out|, and |init_math|}
+ at y
+@!revdisp:scaled; {temporary value of displacement}
+@!LR_ptr:pointer; {stack of LR codes for |hpack|, |ship_out|, and |init_math|}
+ at z
+
+ at x e-pTeX: reverse nodes of an hlist l.28010
+var l:pointer; {the new list}
+ at y
+var l,la:pointer; {the new list}
+disp,disp2: scaled; { displacement } disped: boolean;
+ at z
+ at x e-pTeX: reverse nodes of an hlist l.28010
+begin g_order:=glue_order(this_box); g_sign:=glue_sign(this_box);
+ at y
+begin g_order:=glue_order(this_box); g_sign:=glue_sign(this_box);
+disp:=revdisp; disped:=false;
+ at z
+ at x e-pTeX: reverse nodes of an hlist l.28010
+done:reverse:=l;
+ at y
+done: {if the beginning node of the new list isn't |disp_node|,
+ we insert |disp_node| to fix.}
+if (l<>null)and(type(l)<>disp_node) then begin
+ p:=get_node(small_node_size); type(p):=disp_node;
+ disp_dimen(p):=disp; link(p):=l; reverse:=p;
+ end
+else reverse:=l;
+ at z
+ at x e-pTeX: reverse nodes of an hlist l.28010
+ q:=link(p); link(p):=l; l:=p; p:=q;
+ at y
+ if font_dir[f]<>dir_default then begin
+ q:=link(p); la:=l; l:=p; p:=link(q); link(q):=la;
+ end
+ else begin q:=link(p); link(p):=l; l:=p; p:=q; end;
+ at z
+ at x e-pTeX: reverse nodes of an hlist l.28010
+othercases goto next_p
+ at y
+disp_node: begin
+ disp2:=disp_dimen(p); disp_dimen(p):=disp; disp:=disp2;
+ if not disped then disped:=true; end;
+othercases goto next_p
+ at z
+
+ at x e-pTeX: just_copy
+ hlist_node,vlist_node: begin r:=get_node(box_node_size);
+ at y
+ dir_node,
+ hlist_node,vlist_node: begin r:=get_node(box_node_size);
+ at z
+ at x e-pTeX: just_copy
+ mem[r+6]:=mem[p+6]; mem[r+5]:=mem[p+5]; {copy the last two words}
+ at y
+ mem[r+7]:=mem[p+7];
+ mem[r+6]:=mem[p+6]; mem[r+5]:=mem[p+5]; {copy the last three words}
+ add_glue_ref(space_ptr(r)); add_glue_ref(xspace_ptr(r));
+ at z
+
+ at x e-pTeX: pseudo file
+ buffer[last]:=w.b0; buffer[last+1]:=w.b1;
+ buffer[last+2]:=w.b2; buffer[last+3]:=w.b3;
+ at y
+ buffer[last]:=w.b0 mod @"100; buffer[last+1]:=w.b1 mod @"100;
+ buffer[last+2]:=w.b2 mod @"100; buffer[last+3]:=w.b3 mod @"100;@/
+ buffer2[last]:=0; buffer2[last+1]:=0;
+ buffer2[last+2]:=0; buffer2[last+3]:=0;
+ at z
+
+ at x e-pTeX: \readline
+@ @<Handle \.{\\readline} and |goto done|@>=
+if j=1 then
+ begin while loc<=limit do {current line not yet finished}
+ begin cur_chr:=buffer[loc]; incr(loc);
+ if cur_chr=" " then cur_tok:=space_token
+ @+else cur_tok:=cur_chr+other_token;
+ at y
+@ @<Handle \.{\\readline} and |goto done|@>=
+if j=1 then
+ begin while loc<=limit do {current line not yet finished}
+ begin cur_chr:=buffer[loc]; incr(loc);
+ if multistrlen(ustringcast(buffer), limit+1, loc-1)=2 then
+ begin cur_tok:=fromBUFF(ustringcast(buffer), limit+1, loc-1); incr(loc);
+ end
+ else if cur_chr=" " then cur_tok:=space_token
+ @+else cur_tok:=cur_chr+other_token;
+ at z
+
+ at x e-pTeX: ifcsname l.28620
+ buffer[m]:=info(p) mod @'400; incr(m); p:=link(p);
+ at y
+ if check_kanji(info(p)) then {|wchar_token|}
+ begin buffer[m]:=Hi(info(p)); buffer2[m]:=1; incr(m); buffer2[m]:=1;
+ end
+ else buffer2[m]:=0;
+ buffer[m]:=Lo(info(p)); incr(m); p:=link(p);
+ at z
+
+ at x e-pTeX: if_font_char_code l.28633
+if_font_char_code:begin scan_font_ident; n:=cur_val; scan_char_num;
+ if (font_bc[n]<=cur_val)and(font_ec[n]>=cur_val) then
+ b:=char_exists(char_info(n)(qi(cur_val)))
+ else b:=false;
+ end;
+ at y
+if_font_char_code:begin scan_font_ident; n:=cur_val;
+ if font_dir[n]<>dir_default then {Japanese font}
+ begin scan_int;
+ if cur_val>=0 then b:=is_char_kanji(cur_val)
+ { In u\pTeX, $\hbox{|is_char_kanji|} = \lambda x\mathpunct{.} x\ge 0$ }
+ else begin
+ cur_val:=-(cur_val+1);
+ b:=(font_bc[n]<=cur_val)and(font_ec[n]>=cur_val)
+ end
+ end
+ else begin scan_ascii_num;
+ if (font_bc[n]<=cur_val)and(font_ec[n]>=cur_val) then @/
+ b:=char_exists(orig_char_info(n)(qi(cur_val)))
+ else b:=false;
+ end;
+ end;
+ at z
+
+ at x e-pTeX: pTeX has \showmode, follow showstream.ch r61589
+@<Show the current japanese processing mode@>=
+begin print_nl("> ");
+ at y
+@<Show the current japanese processing mode@>=
+begin
+ @<Adjust |selector| based on |show_stream|@>
+ print_nl("> ");
+ at z
+
+ at x
+procedure print_direction(@!d:integer); {print the direction represented by d}
+ at y
+procedure print_direction_alt(@!d:integer);
+var x: boolean;
+begin x:=false;
+case abs(d) of
+dir_yoko: begin print(", yoko"); x:=true; end;
+dir_tate: begin print(", tate"); x:=true; end;
+dir_dtou: begin print(", dtou"); x:=true; end;
+end;
+if x then begin if d<0 then print("(math)");
+print(" direction"); end;
+end;
+@#
+procedure print_direction(@!d:integer); {print the direction represented by d}
+ at z
+
+ at x e-pTeX: fetch \(no)auto(x)spacing status
+@* \[54] System-dependent changes.
+ at y
+@ The \.{\\currentspacingmode} and \.{\\currentxspacingmode} commands
+return the current \pTeX's status of \.{\\(no)autospacing} and
+\.{\\(no)autoxspacing} respectively.
+
+ at d current_spacing_mode_code=eTeX_int+8 {code for \.{\\currentspacingmode}}
+ at d current_xspacing_mode_code=eTeX_int+9 {code for \.{\\currentxspacingmode}}
+
+@<Generate all \eTeX...@>=
+primitive("currentspacingmode",last_item,current_spacing_mode_code);
+@!@:current_spacing_mode_}{\.{\\currentspacingmode} primitive@>
+primitive("currentxspacingmode",last_item,current_xspacing_mode_code);
+@!@:current_xspacing_mode_}{\.{\\currentxspacingmode} primitive@>
+
+@ @<Cases of |last_item| for |print_cmd_chr|@>=
+current_spacing_mode_code: print_esc("currentspacingmode");
+current_xspacing_mode_code: print_esc("currentxspacingmode");
+
+@ @<Cases for fetching an integer value@>=
+current_spacing_mode_code: cur_val:=auto_spacing;
+current_xspacing_mode_code: cur_val:=auto_xspacing;
+
+@* \[54] System-dependent changes.
+ at z
Copied: trunk/Build/source/texk/web2c/euptexdir/eptex_version.h (from rev 69765, trunk/Build/source/texk/web2c/eptexdir/eptex_version.h)
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/eptex_version.h (rev 0)
+++ trunk/Build/source/texk/web2c/euptexdir/eptex_version.h 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1 @@
+#define EPTEX_VERSION "230214"
Copied: trunk/Build/source/texk/web2c/euptexdir/etex.ch0 (from rev 69765, trunk/Build/source/texk/web2c/eptexdir/etex.ch0)
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/etex.ch0 (rev 0)
+++ trunk/Build/source/texk/web2c/euptexdir/etex.ch0 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,261 @@
+% eptexdir/etex.ch0: changefile used to build e-pTeX, see eptexdir/eptex-base.ch for details.
+% Public domain. Originally written by Peter Breitenlohner <tex-live at tug.org>.
+
+ at x [10] m.135 l.2895 - e-TeX TeXXeT
+|fil|, |fill|, or |filll|). The |subtype| field is not used in \TeX.
+ at y
+|fil|, |fill|, or |filll|). The |subtype| field is not used.
+ at z
+
+ at x [17.236] l.4960 - first web2c, then e-TeX additional integer parameters
+ at d int_pars=web2c_int_pars {total number of integer parameters}
+@#
+ at d etex_int_base=tex_int_pars {base for \eTeX's integer parameters}
+ at y
+ at d int_pars=web2c_int_pars {total number of integer parameters}
+ at z
+
+ at x [18.???] pTeX: ensure buffer2[]=0 in primitive
+ for j:=0 to l-1 do buffer[first+j]:=so(str_pool[k+j]);
+ at y
+ for j:=0 to l-1 do buffer[j]:=so(str_pool[k+j]);
+ at z
+
+ at x [26.413]
+ {fetch an internal parameter}
+label exit;
+var m:halfword; {|chr_code| part of the operand token}
+@!q,@!r:pointer; {general purpose indices}
+@!tx:pointer; {effective tail node}
+ at y
+ {fetch an internal parameter}
+var m:halfword; {|chr_code| part of the operand token}
+ at z
+
+ at x [26.413]
+exit:end;
+ at y
+end;
+ at z
+
+ at x
+ at d badness_code=input_line_no_code+1 {code for \.{\\badness}}
+ at y
+ at d badness_code=glue_val+2 {code for \.{\\badness}}
+ at z
+
+ at x [26.420]
+begin scan_register_num; fetch_box(q);
+if q=null then cur_val:=0 @+else cur_val:=mem[q+m].sc;
+ at y
+begin scan_eight_bit_int;
+if box(cur_val)=null then cur_val:=0 @+else cur_val:=mem[box(cur_val)+m].sc;
+ at z
+
+ at x [26.424]
+legal in similar contexts.
+
+ at y
+legal in similar contexts.
+ at z
+
+ at x [26.424]
+ at d find_effective_tail==find_effective_tail_eTeX
+
+ at y
+ at z
+
+ at x
+ if m>=eTeX_glue then @<Process an expression and |return|@>@;
+ else if m>=eTeX_dim then
+ begin case m of
+ @/@<Cases for fetching a dimension value@>@/
+ end; {there are no other cases}
+ cur_val_level:=dimen_val;
+ end
+ else begin case m of
+ input_line_no_code: cur_val:=line;
+ badness_code: cur_val:=last_badness;
+ @/@<Cases for fetching an integer value@>@/
+ end; {there are no other cases}
+ at y
+ begin if cur_chr=input_line_no_code then cur_val:=line
+ else cur_val:=last_badness; {|cur_chr=badness_code|}
+ at z
+
+ at x [26.424]
+ find_effective_tail;
+ at y
+ at z
+
+ at x [26.424]
+ if not is_char_node(tx)and(mode<>0) then
+ case cur_chr of
+ int_val: if type(tx)=penalty_node then cur_val:=penalty(tx);
+ dimen_val: if type(tx)=kern_node then cur_val:=width(tx);
+ glue_val: if type(tx)=glue_node then
+ begin cur_val:=glue_ptr(tx);
+ if subtype(tx)=mu_glue then cur_val_level:=mu_val;
+ at y
+ if not is_char_node(tail)and(mode<>0) then
+ case cur_chr of
+ int_val: if type(tail)=penalty_node then cur_val:=penalty(tail);
+ dimen_val: if type(tail)=kern_node then cur_val:=width(tail);
+ glue_val: if type(tail)=glue_node then
+ begin cur_val:=glue_ptr(tail);
+ if subtype(tail)=mu_glue then cur_val_level:=mu_val;
+ at z
+
+ at x [26.424]
+ else if (mode=vmode)and(tx=head) then
+ at y
+ else if (mode=vmode)and(tail=head) then
+ at z
+
+ at x [27.468]
+ at d etex_convert_base=5 {base for \eTeX's command codes}
+ at d eTeX_revision_code=etex_convert_base {command code for \.{\\eTeXrevision}}
+ at d etex_convert_codes=etex_convert_base+1 {end of \eTeX's command codes}
+ at d job_name_code=etex_convert_codes {command code for \.{\\jobname}}
+ at y
+ at d job_name_code=5 {command code for \.{\\jobname}}
+ at z
+
+ at x [30.581]
+ at p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
+var old_setting: integer; {saved value of |tracing_online|}
+ at y
+ at p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
+ at z
+
+ at x [32.619]
+save_loc:=dvi_offset+dvi_ptr; base_line:=cur_v;
+prev_p:=this_box+list_offset;
+@<Initialize |hlist_out| for mixed direction typesetting@>;
+left_edge:=cur_h;
+ at y
+save_loc:=dvi_offset+dvi_ptr; base_line:=cur_v; left_edge:=cur_h;
+ at z
+
+ at x [32.620]
+ prev_p:=link(prev_p); {N.B.: not |prev_p:=p|, |p| might be |lig_trick|}
+ at y
+ at z
+
+ at x [32.624] l.13005 - pTeX: output a box(and dir_node) with disp
+ cur_h:=edge; cur_v:=base_line;
+ at y
+ cur_h:=edge+width(p); cur_v:=base_line;
+ at z
+
+ at x [33.649]
+exit: if TeXXeT_en then @<Check for LR anomalies at the end of |hpack|@>;
+hpack:=r;
+ at y
+exit: hpack:=r;
+ at z
+
+ at x [44.977]
+q:=prune_page_top(q,saving_vdiscards>0);
+p:=list_ptr(v); free_node(v,box_node_size);
+if q<>null then q:=vpack(q,natural);
+change_box(q); {the |eq_level| of the box stays the same}
+ at y
+q:=prune_page_top(q); p:=list_ptr(v); free_node(v,box_node_size);
+if q=null then box(n):=null {the |eq_level| of the box stays the same}
+else box(n):=vpack(q,natural);
+ at z
+
+ at x [47.1079]
+@!r:pointer; {running behind |p|}
+@!fm:boolean; {a final \.{\\beginM} \.{\\endM} node pair?}
+@!tx:pointer; {effective tail node}
+ at y
+ at z
+
+ at x [47.1080]
+ at d check_effective_tail(#)==find_effective_tail_eTeX
+ at d fetch_effective_tail==fetch_effective_tail_eTeX
+
+ at y
+ at z
+ at x [47.1080]
+else begin check_effective_tail(goto done);
+ if not is_char_node(tx) then
+ if (type(tx)=hlist_node)or(type(tx)=vlist_node) then
+ @<Remove the last box, unless it's part of a discretionary@>;
+ done:end;
+ at y
+else begin if not is_char_node(tail) then
+ if (type(tail)=hlist_node)or(type(tail)=vlist_node) then
+ @<Remove the last box, unless it's part of a discretionary@>;
+ end;
+ at z
+
+ at x [47.1081]
+begin fetch_effective_tail(goto done);
+cur_box:=tx; shift_amount(cur_box):=0;
+end
+ at y
+begin q:=head;
+repeat p:=q;
+if not is_char_node(q) then if type(q)=disc_node then
+ begin for m:=1 to replace_count(q) do p:=link(p);
+ if p=tail then goto done;
+ end;
+q:=link(p);
+until q=tail;
+cur_box:=tail; shift_amount(cur_box):=0;
+tail:=p; link(p):=null;
+done:end
+ at z
+
+ at x [47.1096]
+ else line_break(false);
+ at y
+ else line_break(widow_penalty);
+ at z
+
+ at x [47.1105]
+@!r:pointer; {running behind |p|}
+@!fm:boolean; {a final \.{\\beginM} \.{\\endM} node pair?}
+@!tx:pointer; {effective tail node}
+ at y
+ at z
+
+ at x [47.1105]
+else begin check_effective_tail(return);
+ if not is_char_node(tx) then if type(tx)=cur_chr then
+ begin fetch_effective_tail(return);
+ flush_node_list(tx);
+ at y
+else begin if not is_char_node(tail) then if type(tail)=cur_chr then
+ begin q:=head;
+ repeat p:=q;
+ if not is_char_node(q) then if type(q)=disc_node then
+ begin for m:=1 to replace_count(q) do p:=link(p);
+ if p=tail then return;
+ end;
+ q:=link(p);
+ until q=tail;
+ link(p):=null; flush_node_list(tail); tail:=p;
+ at z
+
+ at x [47.1110]
+else begin link(tail):=list_ptr(p); change_box(null);
+ at y
+else begin link(tail):=list_ptr(p); box(cur_val):=null;
+ at z
+
+ at x [48.1145]
+else begin line_break(true);@/
+ at y
+else begin line_break(display_widow_penalty);@/
+ at z
+
+ at x [49.1247]
+if b<>null then mem[b+c].sc:=cur_val;
+ at y
+if box(b)<>null then mem[box(b)+c].sc:=cur_val;
+ at z
+
Copied: trunk/Build/source/texk/web2c/euptexdir/etex.ch1 (from rev 69765, trunk/Build/source/texk/web2c/eptexdir/etex.ch1)
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/etex.ch1 (rev 0)
+++ trunk/Build/source/texk/web2c/euptexdir/etex.ch1 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,214 @@
+% eptexdir/etex.ch1: changefile used to build e-pTeX, see eptexdir/eptex-base.ch for details.
+% Public domain. Originally written by Peter Breitenlohner <tex-live at tug.org>.
+
+ at x [12.184]
+ begin print(", "); print_direction(box_dir(p));
+ at y
+ begin print_direction_alt(box_dir(p));
+ at z
+
+ at x [16.215] - e-pTeX last_node_subtype
+last_glue:=max_halfword; last_penalty:=0; last_kern:=0;
+last_node_type:=-1;
+ at y
+last_glue:=max_halfword; last_penalty:=0; last_kern:=0;
+last_node_type:=-1; last_node_subtype:=-1;
+ at z
+
+ at x [17.236]
+ at d int_pars=web2c_int_pars {total number of integer parameters}
+ at y
+ at d etex_int_base=web2c_int_pars {base for \eTeX's integer parameters}
+ at z
+
+ at x [18]
+ for j:=0 to l-1 do begin
+ buffer[j]:=Lo(so(str_pool[k+j])); buffer2[j]:=Hi(so(str_pool[k+j])); end;
+ at y
+ for j:=0 to l-1 do begin
+ buffer[first+j]:=Lo(so(str_pool[k+j])); buffer2[first+j]:=Hi(so(str_pool[k+j])); end;
+ at z
+
+ at x [26.413]
+@<Fix the reference count, if any, and negate |cur_val| if |negative|@>;
+end;
+ at y
+@<Fix the reference count, if any, and negate |cur_val| if |negative|@>;
+exit:end;
+ at z
+
+ at x
+ at d eTeX_int=badness_code+1 {first of \eTeX\ codes for integers}
+ at y
+ at d eTeX_int=ptex_minor_version_code+1 {first of \eTeX\ codes for integers}
+ at z
+
+ at x
+ begin case m of
+ input_line_no_code: cur_val:=line;
+ badness_code: cur_val:=last_badness;
+ ptex_version_code: cur_val:=pTeX_version;
+ eptex_version_code: cur_val:=epTeX_version_number;
+ ptex_minor_version_code: cur_val:=pTeX_minor_version;
+ end; {there and no other cases}
+ at y
+ if m>=eTeX_glue then @<Process an expression and |return|@>@;
+ else if m>=eTeX_dim then
+ begin case m of
+ @/@<Cases for fetching a dimension value@>@/
+ end; {there are no other cases}
+ cur_val_level:=dimen_val;
+ end
+ else begin case m of
+ input_line_no_code: cur_val:=line;
+ badness_code: cur_val:=last_badness;
+ ptex_version_code: cur_val:=pTeX_version;
+ eptex_version_code: cur_val:=epTeX_version_number;
+ ptex_minor_version_code: cur_val:=pTeX_minor_version;
+ @/@<Cases for fetching an integer value@>@/
+ end; {there are no other cases}
+ at z
+
+ at x [27.468]
+ at d job_name_code=ptex_convert_codes {command code for \.{\\jobname}}
+ at y
+ at d etex_convert_base=ptex_convert_codes {base for \eTeX's command codes}
+ at d eTeX_revision_code=etex_convert_base {command code for \.{\\eTeXrevision}}
+ at d etex_convert_codes=etex_convert_base+1 {end of \eTeX's command codes}
+ at d job_name_code=etex_convert_codes {command code for \.{\\jobname}}
+ at z
+
+ at x [30.581]
+ at p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
+var @!l:0..255; {small indices or counters}
+ at y
+ at p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
+var @!l:0..255; {small indices or counters}
+old_setting: integer; {saved value of |tracing_online|}
+ at z
+
+ at x [32.619]
+base_line:=cur_v; left_edge:=cur_h; disp:=0;
+ at y
+base_line:=cur_v; disp:=0; revdisp:=0;
+prev_p:=this_box+list_offset;
+@<Initialize |hlist_out| for mixed direction typesetting@>;
+left_edge:=cur_h;
+ at z
+
+ at x [32.622]
+@<Output node |p| for |hlist_out|...@>=
+ at y
+@<Output node |p| for |hlist_out|...@>=
+ at z
+ at x [32.622]
+ p:=link(p);
+ at y
+ prev_p:=link(prev_p); {N.B.: not |prev_p:=p|, |p| might be |lig_trick|}
+ p:=link(p);
+ at z
+
+ at x [32.623]
+disp_node: begin disp:=disp_dimen(p); cur_v:=base_line+disp; end;
+ at y
+disp_node: begin disp:=disp_dimen(p); revdisp:=disp; cur_v:=base_line+disp; end;
+ at z
+
+ at x [32.624]
+ cur_h:=edge+width(p); cur_v:=base_line+disp; cur_dir_hv:=save_dir;
+ at y
+ cur_h:=edge; cur_v:=base_line+disp; cur_dir_hv:=save_dir;
+ at z
+
+ at x [33.649]
+exit: last_disp:=disp; hpack:=r;
+ at y
+exit: last_disp:=disp;
+if TeXXeT_en then @<Check for LR anomalies at the end of |hpack|@>;
+hpack:=r;
+ at z
+
+ at x [33.651]
+ disp_node:disp:=disp_dimen(p);
+ at y
+ disp_node:begin disp:=disp_dimen(p); revdisp:=disp; end;
+ at z
+
+ at x [44.977]
+q:=prune_page_top(q); p:=list_ptr(v);
+if q=null then box(n):=null {the |eq_level| of the box stays the same}
+else begin
+ box(n):=vpack(q,natural); set_box_dir(box(n))(box_dir(v));
+ end;
+ at y
+q:=prune_page_top(q,saving_vdiscards>0);
+p:=list_ptr(v);
+if q<>null then begin
+ q:=vpack(q,natural); set_box_dir(q)(box_dir(v));
+ end;
+change_box(q);
+ at z
+
+ at x [47.1096]
+ else begin adjust_hlist(head,true); line_break(widow_penalty)
+ at y
+ else begin adjust_hlist(head,true); line_break(false)
+ at z
+
+ at x [47.1110]
+ begin if type(box(cur_val))=dir_node then
+ begin delete_glue_ref(space_ptr(box(cur_val)));
+ delete_glue_ref(xspace_ptr(box(cur_val)));
+ free_node(box(cur_val),box_node_size);
+ at y
+ begin if type(p)=dir_node then
+ begin delete_glue_ref(space_ptr(p));
+ delete_glue_ref(xspace_ptr(p));
+ free_node(p,box_node_size);
+ at z
+ at x [47.1110]
+ link(tail):=list_ptr(p); box(cur_val):=null;
+ at y
+ link(tail):=list_ptr(p); change_box(null);
+ at z
+
+ at x [48.1145]
+ pop_nest; w:=-max_dimen;
+ end
+ { |disp_node|-only paragraphs are ignored }
+ at y
+ @<Prepare for display after an empty paragraph@>
+ end
+ { |disp_node|-only paragraphs are ignored }
+ at z
+
+ at x [48.1145]
+else begin adjust_hlist(head,true); line_break(display_widow_penalty);@/
+ at y
+else begin adjust_hlist(head,true); line_break(true);@/
+ at z
+
+ at x [49.1247]
+if box(b)<>null then
+ begin q:=box(b); p:=link(q);
+ at y
+if b<>null then
+ begin q:=b; p:=link(q);
+ at z
+ at x [49.1247]
+ begin p:=link(box(b)); link(box(b)):=null;
+ at y
+ begin p:=link(b); link(b):=null;
+ at z
+ at x [49.1247]
+ link(q):=p; link(box(b)):=q;
+ at y
+ link(q):=p; link(b):=q;
+ at z
+
+ at x [49.1291]
+ at d show_mode=4 { \.{\\showmode} }
+ at y
+ at d show_mode=7 { \.{\\showmode} }
+ at z
+
Copied: trunk/Build/source/texk/web2c/euptexdir/fam256.ch (from rev 69765, trunk/Build/source/texk/web2c/eptexdir/fam256.ch)
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/fam256.ch (rev 0)
+++ trunk/Build/source/texk/web2c/euptexdir/fam256.ch 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,1537 @@
+% fam256.ch
+% (C) 2009--2017 by Hironori Kitagawa.
+%
+% This patch is derived from om16bit.ch and omfi.ch (both in Omega).
+% (Omega is copyright by John Plaice and Yannis Haralambous.)
+%
+%-----------------------------------------------
+ at x
+ at d hyph_prime=607 {another prime for hashing \.{\\hyphenation} exceptions;
+ if you change this, you should also change |iinf_hyphen_size|.}
+ at y
+ at d hyph_prime=607 {another prime for hashing \.{\\hyphenation} exceptions;
+ if you change this, you should also change |iinf_hyphen_size|.}
+ at d text_size=0 {size code for the largest size in a family}
+ at d script_size=256 {size code for the medium size in a family}
+ at d script_script_size=512 {size code for the smallest size in a family}
+ at z
+%-----------------------------------------------
+ at x
+ at d not_found4=49 {like |not_found|, when there's more than four}
+ at y
+ at d not_found4=49 {like |not_found|, when there's more than four}
+ at d not_found5=50 {like |not_found|, when there's more than five}
+ at z
+%-----------------------------------------------
+ at x
+specifies the order of infinity to which glue setting applies (|normal|,
+|fil|, |fill|, or |filll|). The |subtype| field is not used in \TeX.
+ at y
+specifies the order of infinity to which glue setting applies (|normal|,
+|sfi|, |fil|, |fill|, or |filll|). The |subtype| field is not used in \TeX.
+ at z
+%-----------------------------------------------
+ at x
+orders of infinity (|normal|, |fil|, |fill|, or |filll|)
+ at y
+orders of infinity (|normal|, |sfi|, |fil|, |fill|, or |filll|)
+ at z
+%-----------------------------------------------
+ at x
+ at d fil=1 {first-order infinity}
+ at d fill=2 {second-order infinity}
+ at d filll=3 {third-order infinity}
+ at y
+ at d sfi=1 {first-order infinity}
+ at d fil=2 {second-order infinity}
+ at d fill=3 {third-order infinity}
+ at d filll=4 {fourth-order infinity}
+ at z
+%-----------------------------------------------
+ at x
+@!glue_ord=normal..filll; {infinity to the 0, 1, 2, or 3 power}
+ at y
+@!glue_ord=normal..filll; {infinity to the 0, 1, 2, 3, or 4 power}
+ at z
+%-----------------------------------------------
+ at x
+ at d fil_glue==zero_glue+glue_spec_size {\.{0pt plus 1fil minus 0pt}}
+ at y
+ at d sfi_glue==zero_glue+glue_spec_size {\.{0pt plus 1fi minus 0pt}}
+ at d fil_glue==sfi_glue+glue_spec_size {\.{0pt plus 1fil minus 0pt}}
+ at z
+%-----------------------------------------------
+ at x
+stretch(fil_glue):=unity; stretch_order(fil_glue):=fil;@/
+stretch(fill_glue):=unity; stretch_order(fill_glue):=fill;@/
+ at y
+stretch(sfi_glue):=unity; stretch_order(sfi_glue):=sfi;@/
+stretch(fil_glue):=unity; stretch_order(fil_glue):=fil;@/
+stretch(fill_glue):=unity; stretch_order(fill_glue):=fill;@/
+ at z
+%-----------------------------------------------
+ at x
+ begin print("fil");
+ while order>fil do
+ at y
+ begin print("fi");
+ while order>sfi do
+ at z
+%-----------------------------------------------
+ at x
+ at d last_item=math_given+1 {most recent item ( \.{\\lastpenalty},
+ at y
+ at d omath_given=math_given+1 {math code defined by \.{\\omathchardef}}
+ at d last_item=omath_given+1 {most recent item ( \.{\\lastpenalty},
+ at z
+%-----------------------------------------------
+ at x
+ at d math_font_base=cur_font_loc+1 {table of 48 math font numbers}
+ at d cur_jfont_loc=math_font_base+48
+ at y
+ at d math_font_base=cur_font_loc+1 {table of 768 math font numbers}
+ at d cur_jfont_loc=math_font_base+768
+ at z
+%-----------------------------------------------
+ at x
+ at d var_code==@'70000 {math code meaning ``use the current family''}
+ at y
+ at d var_code==@"70000 {math code meaning ``use the current family''}
+ at z
+%-----------------------------------------------
+ at x
+for k:=math_font_base to math_font_base+47 do eqtb[k]:=eqtb[cur_font_loc];
+ at y
+for k:=math_font_base to math_font_base+767 do eqtb[k]:=eqtb[cur_font_loc];
+ at z
+%-----------------------------------------------
+ at x
+begin if n=cur_font_loc then print("current font")
+else if n<math_font_base+16 then
+ begin print_esc("textfont"); print_int(n-math_font_base);
+ end
+else if n<math_font_base+32 then
+ begin print_esc("scriptfont"); print_int(n-math_font_base-16);
+ end
+else begin print_esc("scriptscriptfont"); print_int(n-math_font_base-32);
+ at y
+begin if n=cur_font_loc then print("current font")
+else if n<math_font_base+script_size then
+ begin print_esc("textfont"); print_int(n-math_font_base);
+ end
+else if n<math_font_base+script_script_size then
+ begin print_esc("scriptfont"); print_int(n-math_font_base-script_size);
+ end
+else begin print_esc("scriptscriptfont");
+ print_int(n-math_font_base-script_script_size);
+ at z
+%-----------------------------------------------
+ at x
+ at d del_code(#)==eqtb[del_code_base+#].int
+ at y
+ at d del_code(#)==eqtb[del_code_base+#].int
+ at d del_code1(#)==getintone(eqtb[del_code_base+#])
+ at z
+%-----------------------------------------------
+ at x
+for k:=0 to 255 do del_code(k):=-1;
+del_code("."):=0; {this null delimiter is used in error recovery}
+ at y
+for k:=0 to 255 do
+ begin del_code(k):=-1; setintone(eqtb[del_code_base+k],-1);
+ end;
+del_code("."):=0; setintone(eqtb[del_code_base+"."],0);
+ {this null delimiter is used in error recovery}
+ at z
+%-----------------------------------------------
+ at x
+primitive("delimiter",delim_num,0);@/
+@!@:delimiter_}{\.{\\delimiter} primitive@>
+ at y
+primitive("delimiter",delim_num,0);@/
+@!@:delimiter_}{\.{\\delimiter} primitive@>
+primitive("odelimiter",delim_num,1);@/
+@!@:delimiter_}{\.{\\odelimiter} primitive@>
+ at z
+%-----------------------------------------------
+ at x
+primitive("mathaccent",math_accent,0);@/
+@!@:math_accent_}{\.{\\mathaccent} primitive@>
+primitive("mathchar",math_char_num,0);@/
+@!@:math_char_}{\.{\\mathchar} primitive@>
+ at y
+primitive("mathaccent",math_accent,0);@/
+@!@:math_accent_}{\.{\\mathaccent} primitive@>
+primitive("mathchar",math_char_num,0);@/
+@!@:math_char_}{\.{\\mathchar} primitive@>
+primitive("omathaccent",math_accent,1);@/
+@!@:math_accent_}{\.{\\omathaccent} primitive@>
+primitive("omathchar",math_char_num,1);@/
+@!@:math_char_}{\.{\\omathchar} primitive@>
+ at z
+%-----------------------------------------------
+ at x
+primitive("radical",radical,0);@/
+@!@:radical_}{\.{\\radical} primitive@>
+ at y
+primitive("radical",radical,0);@/
+@!@:radical_}{\.{\\radical} primitive@>
+primitive("oradical",radical,1);@/
+@!@:radical_}{\.{\\oradical} primitive@>
+ at z
+%-----------------------------------------------
+ at x
+delim_num: print_esc("delimiter");
+ at y
+delim_num: if chr_code=0 then print_esc("delimiter")
+ else print_esc("odelimiter");
+ at z
+ at x
+math_accent: print_esc("mathaccent");
+math_char_num: print_esc("mathchar");
+ at y
+math_accent: if chr_code=0 then print_esc("mathaccent")
+ else print_esc("omathaccent");
+math_char_num: if chr_code=0 then print_esc("mathchar")
+ else print_esc("omathchar");
+ at z
+ at x
+radical: print_esc("radical");
+ at y
+radical: if chr_code=0 then print_esc("radical")
+ else print_esc("oradical");
+ at z
+%-----------------------------------------------
+ at x
+ at p procedure eq_word_define(@!p:pointer;@!w:integer);
+label exit;
+begin if eTeX_ex and(eqtb[p].int=w) then
+ begin assign_trace(p,"reassigning")@;@/
+ return;
+ end;
+assign_trace(p,"changing")@;@/
+if xeq_level[p]<>cur_level then
+ begin eq_save(p,xeq_level[p]); xeq_level[p]:=cur_level;
+ end;
+eqtb[p].int:=w;
+assign_trace(p,"into")@;@/
+exit:end;
+ at y
+ at p procedure eq_word_define(@!p:pointer;@!w:integer);
+label exit;
+begin if eTeX_ex and(eqtb[p].int=w) then
+ begin assign_trace(p,"reassigning")@;@/
+ return;
+ end;
+assign_trace(p,"changing")@;@/
+if xeq_level[p]<>cur_level then
+ begin eq_save(p,xeq_level[p]); xeq_level[p]:=cur_level;
+ end;
+eqtb[p].int:=w;
+assign_trace(p,"into")@;@/
+exit:end;
+@#
+procedure del_eq_word_define(@!p:pointer;@!w,wone:integer);
+label exit;
+begin if eTeX_ex and(eqtb[p].int=w)and(getintone(eqtb[p])=wone) then
+ begin assign_trace(p,"reassigning")@;@/
+ return;
+ end;
+assign_trace(p,"changing")@;@/
+if xeq_level[p]<>cur_level then
+ begin eq_save(p,xeq_level[p]); xeq_level[p]:=cur_level;
+ end;
+eqtb[p].int:=w; setintone(eqtb[p],wone);
+assign_trace(p,"into")@;@/
+exit:end;
+ at z
+%-----------------------------------------------
+ at x
+procedure geq_word_define(@!p:pointer;@!w:integer); {global |eq_word_define|}
+begin assign_trace(p,"globally changing")@;@/
+begin eqtb[p].int:=w; xeq_level[p]:=level_one;
+end;
+assign_trace(p,"into")@;@/
+end;
+ at y
+procedure geq_word_define(@!p:pointer;@!w:integer); {global |eq_word_define|}
+begin assign_trace(p,"globally changing")@;@/
+begin eqtb[p].int:=w; xeq_level[p]:=level_one;
+end;
+assign_trace(p,"into")@;@/
+end;
+@#
+procedure del_geq_word_define(@!p:pointer;@!w,wone:integer);
+ {global |del_eq_word_define|}
+begin assign_trace(p,"globally changing")@;@/
+begin eqtb[p].int:=w; setintone(eqtb[p],wone); xeq_level[p]:=level_one;
+end;
+assign_trace(p,"into")@;@/
+end;
+ at z
+%-----------------------------------------------
+ at x
+ at d tok_val=5 {token lists}
+
+@<Glob...@>=
+@!cur_val:integer; {value returned by numeric scanners}
+ at y
+ at d tok_val=5 {token lists}
+
+@<Glob...@>=
+@!cur_val:integer; {value returned by numeric scanners}
+@!cur_val1:integer;
+ at z
+%-----------------------------------------------
+ at x
+char_given,math_given: scanned_result(cur_chr)(int_val);
+ at y
+omath_given,
+char_given,math_given: scanned_result(cur_chr)(int_val);
+ at z
+%-----------------------------------------------
+ at x
+@ @<Fetch a character code from some table@>=
+begin
+if m=math_code_base then
+ begin scan_ascii_num;
+ scanned_result(ho(math_code(cur_val)))(int_val); end
+ at y
+@ @<Fetch a character code from some table@>=
+begin
+if m=math_code_base then begin
+ scan_ascii_num; cur_val1:=ho(math_code(cur_val));
+ if ((cur_val1 div @"10000)>8) or
+ (((cur_val1 mod @"10000) div @"100)>15) then
+ begin print_err("Extended mathchar used as mathchar");
+ at .Bad mathchar@>
+ help2("A mathchar number must be between 0 and ""7FFF.")@/
+ ("I changed this one to zero."); int_error(cur_val1);
+ scanned_result(0)(int_val)
+ end;
+ cur_val1:=(cur_val1 div @"10000)*@"1000+cur_val1 mod @"1000;
+ scanned_result(cur_val1)(int_val);
+ end
+else if m=(math_code_base+128) then begin
+ scan_ascii_num; cur_val1:=ho(math_code(cur_val));
+ cur_val:=(cur_val1 div @"10000) * @"1000000
+ +((cur_val1 div @"100) mod @"100) * @"10000
+ +(cur_val1 mod @"100);
+ scanned_result(cur_val)(int_val);
+ end
+else if m=del_code_base then begin
+ scan_ascii_num; cur_val1:=del_code(cur_val); cur_val:=del_code1(cur_val);
+ if ((cur_val1 div @"100) mod @"100 >= 16) or (cur_val>=@"1000) then
+ begin print_err("Extended delimiter code used as delcode");
+ at .Bad delimiter code@>
+ help2("A numeric delimiter code must be between 0 and 2^{27}-1.")@/
+ ("I changed this one to zero."); error;
+ scanned_result(0)(int_val);
+ end
+ else if cur_val1<0 then
+ scanned_result(cur_val)(int_val)
+ else
+ scanned_result(cur_val1*@"1000+cur_val)(int_val);
+ end
+else if m=(del_code_base+128) then begin
+ { Aleph seems \.{\\odelcode} always returns $-1$.}
+ scan_ascii_num; scanned_result(-1)(int_val);
+ end
+ at z
+%-----------------------------------------------
+ at x
+procedure scan_four_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>15) then
+ begin print_err("Bad number");
+ at .Bad number@>
+ help2("Since I expected to read a number between 0 and 15,")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+ at y
+procedure scan_four_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>15) then
+ begin print_err("Bad number");
+ at .Bad number@>
+ help2("Since I expected to read a number between 0 and 15,")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+@#
+procedure scan_big_four_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>255) then
+ begin print_err("Bad number");
+ at .Bad register code@>
+ help2("Since I expected to read a number between 0 and 255,")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+ at z
+%-----------------------------------------------
+ at x
+procedure scan_fifteen_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>@'77777) then
+ begin print_err("Bad mathchar");
+ at .Bad mathchar@>
+ help2("A mathchar number must be between 0 and 32767.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+ at y
+procedure scan_fifteen_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>@'77777) then
+ begin print_err("Bad mathchar");
+ at .Bad mathchar@>
+ help2("A mathchar number must be between 0 and 32767.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+cur_val:=((cur_val div @"1000) * @"10000)+(cur_val mod @"1000);
+end;
+@#
+procedure scan_real_fifteen_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>@'77777) then
+ begin print_err("Bad mathchar");
+ at .Bad mathchar@>
+ help2("A mathchar number must be between 0 and 32767.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+@#
+procedure scan_big_fifteen_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>@"7FFFFFF) then
+ begin print_err("Bad extended mathchar");
+ at .Bad mathchar@>
+ help2("An extended mathchar number must be between 0 and ""7FFFFFF.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+{ e-pTeX doesn't support 65536 characters for math font. }
+cur_val:=((cur_val div @"10000) * @"100)+(cur_val mod @"100);
+end;
+@#
+procedure scan_omega_fifteen_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>@"7FFFFFF) then
+ begin print_err("Bad extended mathchar");
+ at .Bad mathchar@>
+ help2("An extended mathchar number must be between 0 and ""7FFFFFF.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+ at z
+%-----------------------------------------------
+ at x
+procedure scan_twenty_seven_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>@'777777777) then
+ begin print_err("Bad delimiter code");
+ at .Bad delimiter code@>
+ help2("A numeric delimiter code must be between 0 and 2^{27}-1.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+ at y
+procedure scan_twenty_seven_bit_int;
+begin scan_int;
+if (cur_val<0)or(cur_val>@'777777777) then
+ begin print_err("Bad delimiter code");
+ at .Bad delimiter code@>
+ help2("A numeric delimiter code must be between 0 and 2^{27}-1.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+cur_val1 := cur_val mod @"1000; cur_val := cur_val div @"1000;
+cur_val := ((cur_val div @"1000) * @"10000) + (cur_val mod @"1000);
+end;
+@#
+procedure scan_fifty_one_bit_int;
+var iiii:integer;
+begin scan_int;
+if (cur_val<0)or(cur_val>@'777777777) then
+ begin print_err("Bad delimiter code");
+ at .Bad delimiter code@>
+ help2("A numeric delimiter (first part) must be between 0 and 2^{27}-1.")
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+iiii:=((cur_val div @"10000) * @"100) + (cur_val mod @"100);
+scan_int;
+if (cur_val<0)or(cur_val>@"FFFFFF) then
+ begin print_err("Bad delimiter code");
+ at .Bad delimiter code@>
+help2("A numeric delimiter (second part) must be between 0 and 2^{24}-1.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+{ e-pTeX doesn't support 65536 characters for math font. }
+cur_val1:=((cur_val div @"10000) * @"100) + (cur_val mod @"100);
+cur_val:=iiii;
+end;
+ at z
+%-----------------------------------------------
+ at x
+@<Scan for \(f)\.{fil} units...@>=
+if scan_keyword("fil") then
+ at .fil@>
+ begin cur_order:=fil;
+ at y
+@<Scan for \(f)\.{fil} units...@>=
+if scan_keyword("fi") then
+ at .fil@>
+ begin cur_order:=sfi;
+ at z
+%-----------------------------------------------
+ at x
+else if cur_cmd=def_family then
+ begin m:=cur_chr; scan_four_bit_int; f:=equiv(m+cur_val);
+ at y
+else if cur_cmd=def_family then
+ begin m:=cur_chr; scan_big_four_bit_int; f:=equiv(m+cur_val);
+ at z
+%-----------------------------------------------
+ at x
+total_stretch[normal]:=0; total_shrink[normal]:=0;
+ at y
+total_stretch[normal]:=0; total_shrink[normal]:=0;
+total_stretch[sfi]:=0; total_shrink[sfi]:=0;
+ at z
+%-----------------------------------------------
+ at x
+else if total_stretch[fil]<>0 then o:=fil
+ at y
+else if total_stretch[fil]<>0 then o:=fil
+else if total_stretch[sfi]<>0 then o:=sfi
+ at z
+%-----------------------------------------------
+ at x
+else if total_shrink[fil]<>0 then o:=fil
+ at y
+else if total_shrink[fil]<>0 then o:=fil
+else if total_shrink[sfi]<>0 then o:=sfi
+ at z
+%-----------------------------------------------
+ at x
+\yskip\hang|math_type(q)=math_char| means that |fam(q)| refers to one of
+the sixteen font families, and |character(q)| is the number of a character
+ at y
+\yskip\hang|math_type(q)=math_char| means that |fam(q)| refers to one of
+the 256 font families, and |character(q)| is the number of a character
+ at z
+%-----------------------------------------------
+ at x
+procedure print_fam_and_char(@!p:pointer;@!t:small_number);
+ at y
+procedure print_fam_and_char(@!p:pointer;@!t:integer);
+ at z
+%-----------------------------------------------
+ at x
+other font information. A size code, which is a multiple of 16, is added to a
+family number to get an index into the table of internal font numbers
+for each combination of family and size. (Be alert: Size codes get
+larger as the type gets smaller.)
+
+ at d text_size=0 {size code for the largest size in a family}
+ at d script_size=16 {size code for the medium size in a family}
+ at d script_script_size=32 {size code for the smallest size in a family}
+ at y
+other font information. A size code, which is a multiple of 256, is added to a
+family number to get an index into the table of internal font numbers
+for each combination of family and size. (Be alert: Size codes get
+larger as the type gets smaller.)
+ at z
+%-----------------------------------------------
+ at x
+else cur_size:=16*((cur_style-text_style) div 2);
+ at y
+else cur_size:=script_size*((cur_style-text_style) div 2);
+ at z
+%-----------------------------------------------
+ at x
+function var_delimiter(@!d:pointer;@!s:small_number;@!v:scaled):pointer;
+ at y
+function var_delimiter(@!d:pointer;@!s:integer;@!v:scaled):pointer;
+ at z
+%-----------------------------------------------
+ at x
+@!hd: eight_bits; {height-depth byte}
+@!r: four_quarters; {extensible pieces}
+@!z: small_number; {runs through font family members}
+ at y
+@!hd: eight_bits; {height-depth byte}
+@!r: four_quarters; {extensible pieces}
+@!z: integer; {runs through font family members}
+ at z
+%-----------------------------------------------
+ at x
+ begin z:=z+s+16;
+ repeat z:=z-16; g:=fam_fnt(z);
+ at y
+ begin z:=z+s+script_size;
+ repeat z:=z-script_size; g:=fam_fnt(z);
+ at z
+%-----------------------------------------------
+ at x
+ until z<16;
+ at y
+ until z<script_size;
+ at z
+%-----------------------------------------------
+ at x
+@!cur_mlist:pointer; {beginning of mlist to be translated}
+@!cur_style:small_number; {style code at current place in the list}
+@!cur_size:small_number; {size code corresponding to |cur_style|}
+ at y
+@!cur_mlist:pointer; {beginning of mlist to be translated}
+@!cur_style:small_number; {style code at current place in the list}
+@!cur_size:integer; {size code corresponding to |cur_style|}
+ at z
+%-----------------------------------------------
+ at x
+@!p,@!x,@!y,@!z: pointer; {temporary registers for list construction}
+@!pen:integer; {a penalty to be inserted}
+@!s:small_number; {the size of a noad to be deleted}
+ at y
+@!p,@!x,@!y,@!z: pointer; {temporary registers for list construction}
+@!pen:integer; {a penalty to be inserted}
+@!s:integer; {the size of a noad to be deleted}
+ at z
+%-----------------------------------------------
+ at x
+procedure make_scripts(@!q:pointer;@!delta:scaled);
+var p,@!x,@!y,@!z:pointer; {temporary registers for box construction}
+@!shift_up,@!shift_down,@!clr:scaled; {dimensions in the calculation}
+@!t:small_number; {subsidiary size code}
+ at y
+procedure make_scripts(@!q:pointer;@!delta:scaled);
+var p,@!x,@!y,@!z:pointer; {temporary registers for box construction}
+@!shift_up,@!shift_down,@!clr:scaled; {dimensions in the calculation}
+@!t:integer; {subsidiary size code}
+ at z
+%-----------------------------------------------
+ at x
+contains six scaled numbers, since it must record the net change in glue
+stretchability with respect to all orders of infinity. The natural width
+difference appears in |mem[q+1].sc|; the stretch differences in units of
+pt, fil, fill, and filll appear in |mem[q+2..q+5].sc|; and the shrink difference
+appears in |mem[q+6].sc|. The |subtype| field of a delta node is not used.
+
+ at d delta_node_size=7 {number of words in a delta node}
+ at y
+contains seven scaled numbers, since it must record the net change in glue
+stretchability with respect to all orders of infinity. The natural width
+difference appears in |mem[q+1].sc|; the stretch differences in units of
+pt, sfi, fil, fill, and filll appear in |mem[q+2..q+6].sc|; and the shrink
+difference appears in |mem[q+7].sc|. The |subtype| field of a delta node
+is not used.
+
+ at d delta_node_size=8 {number of words in a delta node}
+ at z
+%-----------------------------------------------
+ at x
+@ As the algorithm runs, it maintains a set of six delta-like registers
+for the length of the line following the first active breakpoint to the
+current position in the given hlist. When it makes a pass through the
+active list, it also maintains a similar set of six registers for the
+ at y
+@ As the algorithm runs, it maintains a set of seven delta-like registers
+for the length of the line following the first active breakpoint to the
+current position in the given hlist. When it makes a pass through the
+active list, it also maintains a similar set of seven registers for the
+ at z
+%-----------------------------------------------
+ at x
+k:=1 to 6 do cur_active_width[k]:=cur_active_width[k]+mem[q+k].sc|};$$ and we
+want to do this without the overhead of |for| loops. The |do_all_six|
+macro makes such six-tuples convenient.
+
+ at d do_all_six(#)==#(1);#(2);#(3);#(4);#(5);#(6)
+ at y
+k:=1 to 7 do cur_active_width[k]:=cur_active_width[k]+mem[q+k].sc|};$$ and we
+want to do this without the overhead of |for| loops. The |do_all_six|
+macro makes such seven-tuples convenient.
+
+ at d do_all_six(#)==#(1);#(2);#(3);#(4);#(5);#(6);#(7)
+ at z
+%-----------------------------------------------
+ at x
+@!active_width:array[1..6] of scaled;
+ {distance from first active node to~|cur_p|}
+@!cur_active_width:array[1..6] of scaled; {distance from current active node}
+@!background:array[1..6] of scaled; {length of an ``empty'' line}
+@!break_width:array[1..6] of scaled; {length being computed after current break}
+ at y
+@!active_width:array[1..7] of scaled;
+ {distance from first active node to~|cur_p|}
+@!cur_active_width:array[1..7] of scaled; {distance from current active node}
+@!background:array[1..7] of scaled; {length of an ``empty'' line}
+@!break_width:array[1..7] of scaled; {length being computed after current break}
+ at z
+%-----------------------------------------------
+ at x
+background[2]:=0; background[3]:=0; background[4]:=0; background[5]:=0;@/
+background[2+stretch_order(q)]:=stretch(q);@/
+background[2+stretch_order(r)]:=@|background[2+stretch_order(r)]+stretch(r);@/
+background[6]:=shrink(q)+shrink(r);
+ at y
+background[2]:=0; background[3]:=0; background[4]:=0; background[5]:=0;@/
+background[6]:=0;@/
+background[2+stretch_order(q)]:=stretch(q);@/
+background[2+stretch_order(r)]:=@|background[2+stretch_order(r)]+stretch(r);@/
+background[7]:=shrink(q)+shrink(r);
+ at z
+%-----------------------------------------------
+ at x
+ break_width[6]:=break_width[6]-shrink(cur_kanji_skip);
+ at y
+ break_width[7]:=break_width[7]-shrink(cur_kanji_skip);
+ at z
+%-----------------------------------------------
+ at x
+break_width[6]:=break_width[6]-shrink(v);
+ at y
+break_width[7]:=break_width[7]-shrink(v);
+ at z
+%-----------------------------------------------
+ at x
+subarray |cur_active_width[2..5]|, in units of points, fil, fill, and filll.
+ at y
+subarray |cur_active_width[2..6]|, in units of points, sfi, fil, fill and filll.
+ at z
+%-----------------------------------------------
+ at x
+if (cur_active_width[3]<>0)or(cur_active_width[4]<>0)or@|
+ (cur_active_width[5]<>0) then
+ at y
+if (cur_active_width[3]<>0)or(cur_active_width[4]<>0)or@|
+ (cur_active_width[5]<>0)or(cur_active_width[6]<>0) then
+ at z
+%-----------------------------------------------
+ at x
+@ Shrinkability is never infinite in a paragraph;
+we can shrink the line from |r| to |cur_p| by at most |cur_active_width[6]|.
+
+@<Set the value of |b| to the badness for shrinking...@>=
+begin if -shortfall>cur_active_width[6] then b:=inf_bad+1
+else b:=badness(-shortfall,cur_active_width[6]);
+ at y
+@ Shrinkability is never infinite in a paragraph;
+we can shrink the line from |r| to |cur_p| by at most |cur_active_width[7]|.
+
+@<Set the value of |b| to the badness for shrinking...@>=
+begin if -shortfall>cur_active_width[7] then b:=inf_bad+1
+else b:=badness(-shortfall,cur_active_width[7]);
+ at z
+%-----------------------------------------------
+ at x
+ active_width[6]:=active_width[6]+shrink(cur_kanji_skip);
+ at y
+ active_width[7]:=active_width[7]+shrink(cur_kanji_skip);
+ at z
+%-----------------------------------------------
+ at x
+active_width[6]:=active_width[6]+shrink(q)
+ at y
+active_width[7]:=active_width[7]+shrink(q)
+ at z
+%-----------------------------------------------
+ at x
+ if (active_height[3]<>0) or (active_height[4]<>0) or
+ (active_height[5]<>0) then b:=0
+ else b:=badness(h-cur_height,active_height[2])
+else if cur_height-h>active_height[6] then b:=awful_bad
+else b:=badness(cur_height-h,active_height[6])
+ at y
+ if (active_height[3]<>0) or (active_height[4]<>0) or
+ (active_height[5]<>0) or (active_height[6]<>0) then b:=0
+ else b:=badness(h-cur_height,active_height[2])
+else if cur_height-h>active_height[7] then b:=awful_bad
+else b:=badness(cur_height-h,active_height[7])
+ at z
+%-----------------------------------------------
+ at x
+ active_height[6]:=active_height[6]+shrink(q);
+ at y
+ active_height[7]:=active_height[7]+shrink(q);
+ at z
+%-----------------------------------------------
+ at x
+on the current page. This array contains six |scaled| numbers, like the
+ at y
+on the current page. This array contains seven |scaled| numbers, like the
+ at z
+%-----------------------------------------------
+ at x
+ at d page_shrink==page_so_far[6] {shrinkability of the current page}
+ at d page_depth==page_so_far[7] {depth of the current page}
+ at y
+ at d page_shrink==page_so_far[7] {shrinkability of the current page}
+ at d page_depth==page_so_far[8] {depth of the current page}
+ at z
+%-----------------------------------------------
+ at x
+@<Glob...@>=
+@!page_so_far:array [0..7] of scaled; {height and glue of the current page}
+ at y
+@<Glob...@>=
+@!page_so_far:array [0..8] of scaled; {height and glue of the current page}
+ at z
+%-----------------------------------------------
+ at x
+primitive("pagefilstretch",set_page_dimen,3);
+@!@:page_fil_stretch_}{\.{\\pagefilstretch} primitive@>
+primitive("pagefillstretch",set_page_dimen,4);
+@!@:page_fill_stretch_}{\.{\\pagefillstretch} primitive@>
+primitive("pagefilllstretch",set_page_dimen,5);
+@!@:page_filll_stretch_}{\.{\\pagefilllstretch} primitive@>
+primitive("pageshrink",set_page_dimen,6);
+@!@:page_shrink_}{\.{\\pageshrink} primitive@>
+primitive("pagedepth",set_page_dimen,7);
+@!@:page_depth_}{\.{\\pagedepth} primitive@>
+ at y
+primitive("pagefistretch",set_page_dimen,3);
+@!@:page_fi_stretch_}{\.{\\pagefistretch} primitive@>
+primitive("pagefilstretch",set_page_dimen,4);
+@!@:page_fil_stretch_}{\.{\\pagefilstretch} primitive@>
+primitive("pagefillstretch",set_page_dimen,5);
+@!@:page_fill_stretch_}{\.{\\pagefillstretch} primitive@>
+primitive("pagefilllstretch",set_page_dimen,6);
+@!@:page_filll_stretch_}{\.{\\pagefilllstretch} primitive@>
+primitive("pageshrink",set_page_dimen,7);
+@!@:page_shrink_}{\.{\\pageshrink} primitive@>
+primitive("pagedepth",set_page_dimen,8);
+@!@:page_depth_}{\.{\\pagedepth} primitive@>
+ at z
+%-----------------------------------------------
+ at x
+3: print_esc("pagefilstretch");
+4: print_esc("pagefillstretch");
+5: print_esc("pagefilllstretch");
+6: print_esc("pageshrink");
+ at y
+3: print_esc("pagefistretch");
+4: print_esc("pagefilstretch");
+5: print_esc("pagefillstretch");
+6: print_esc("pagefilllstretch");
+7: print_esc("pageshrink");
+ at z
+%-----------------------------------------------
+ at x
+print_plus(3)("fil");
+print_plus(4)("fill");
+print_plus(5)("filll");
+ at y
+print_plus(3)("fi");
+print_plus(4)("fil");
+print_plus(5)("fill");
+print_plus(6)("filll");
+ at z
+%-----------------------------------------------
+ at x
+ if (page_so_far[3]<>0) or (page_so_far[4]<>0) or@|
+ (page_so_far[5]<>0) then b:=0
+ at y
+ if (page_so_far[3]<>0) or (page_so_far[4]<>0) or@|
+ (page_so_far[5]<>0) or (page_so_far[6]<>0) then b:=0
+ at z
+%-----------------------------------------------
+ at x
+non_math(math_given), non_math(math_comp), non_math(delim_num),
+ at y
+non_math(math_given), non_math(omath_given),
+non_math(math_comp), non_math(delim_num),
+ at z
+%-----------------------------------------------
+ at x
+ at d fil_code=0 {identifies \.{\\hfil} and \.{\\vfil}}
+ at d fill_code=1 {identifies \.{\\hfill} and \.{\\vfill}}
+ at d ss_code=2 {identifies \.{\\hss} and \.{\\vss}}
+ at d fil_neg_code=3 {identifies \.{\\hfilneg} and \.{\\vfilneg}}
+ at d skip_code=4 {identifies \.{\\hskip} and \.{\\vskip}}
+ at d mskip_code=5 {identifies \.{\\mskip}}
+ at y
+ at d sfi_code=0 {identifies \.{\\hfi} and \.{\\vfi}}
+ at d fil_code=1 {identifies \.{\\hfil} and \.{\\vfil}}
+ at d fill_code=2 {identifies \.{\\hfill} and \.{\\vfill}}
+ at d ss_code=3 {identifies \.{\\hss} and \.{\\vss}}
+ at d fil_neg_code=4 {identifies \.{\\hfilneg} and \.{\\vfilneg}}
+ at d skip_code=5 {identifies \.{\\hskip} and \.{\\vskip}}
+ at d mskip_code=6 {identifies \.{\\mskip}}
+ at z
+%-----------------------------------------------
+ at x
+primitive("hfil",hskip,fil_code);
+@!@:hfil_}{\.{\\hfil} primitive@>
+ at y
+primitive("hfi",hskip,sfi_code);
+@!@:hfi_}{\.{\\hfi} primitive@>
+primitive("hfil",hskip,fil_code);
+@!@:hfil_}{\.{\\hfil} primitive@>
+ at z
+%-----------------------------------------------
+ at x
+primitive("vfil",vskip,fil_code);
+@!@:vfil_}{\.{\\vfil} primitive@>
+ at y
+primitive("vfi",vskip,sfi_code);
+@!@:vfi_}{\.{\\vfi} primitive@>
+primitive("vfil",vskip,fil_code);
+@!@:vfil_}{\.{\\vfil} primitive@>
+ at z
+%-----------------------------------------------
+ at x
+hskip: case chr_code of
+ skip_code:print_esc("hskip");
+ at y
+hskip: case chr_code of
+ skip_code:print_esc("hskip");
+ sfi_code:print_esc("hfi");
+ at z
+%-----------------------------------------------
+ at x
+vskip: case chr_code of
+ skip_code:print_esc("vskip");
+ at y
+vskip: case chr_code of
+ skip_code:print_esc("vskip");
+ sfi_code:print_esc("vfi");
+ at z
+%-----------------------------------------------
+ at x
+begin s:=cur_chr;
+case s of
+fil_code: cur_val:=fil_glue;
+ at y
+begin s:=cur_chr;
+case s of
+sfi_code: cur_val:=sfi_glue;
+fil_code: cur_val:=fil_glue;
+ at z
+%-----------------------------------------------
+ at x
+|global_box_flag-1| represent `\.{\\setbox0}' through `\.{\\setbox32767}';
+codes |global_box_flag| through |ship_out_flag-1| represent
+`\.{\\global\\setbox0}' through `\.{\\global\\setbox32767}';
+ at y
+|global_box_flag-1| represent `\.{\\setbox0}' through `\.{\\setbox65535}';
+codes |global_box_flag| through |ship_out_flag-1| represent
+`\.{\\global\\setbox0}' through `\.{\\global\\setbox65535}';
+ at z
+%-----------------------------------------------
+ at x
+ at d box_flag==@'10000000000 {context code for `\.{\\setbox0}'}
+ at d global_box_flag==@'10000100000 {context code for `\.{\\global\\setbox0}'}
+ at d ship_out_flag==@'10000200000 {context code for `\.{\\shipout}'}
+ at d leader_flag==@'10000200001 {context code for `\.{\\leaders}'}
+ at y
+ at d box_flag==@"40000000 {context code for `\.{\\setbox0}'}
+ at d global_box_flag==@"40010000 {context code for `\.{\\global\\setbox0}'}
+ at d ship_out_flag==@"40020000 {context code for `\.{\\shipout}'}
+ at d leader_flag==@"40020001 {context code for `\.{\\leaders}'}
+ at z
+%-----------------------------------------------
+ at x
+ at d fam_in_range==((cur_fam>=0)and(cur_fam<16))
+ at y
+ at d fam_in_range==((cur_fam>=0)and(cur_fam<script_size))
+ at z
+%-----------------------------------------------
+ at x
+ c:=ho(math_code(cur_chr));
+ if c=@'100000 then
+ at y
+ c:=ho(math_code(cur_chr));
+ if c=@"80000 then
+ at z
+%-----------------------------------------------
+ at x
+math_char_num: begin scan_fifteen_bit_int; c:=cur_val;
+ end;
+math_given: c:=cur_chr;
+delim_num: begin scan_twenty_seven_bit_int; c:=cur_val div @'10000;
+ at y
+math_char_num: begin
+ if cur_chr=0 then scan_fifteen_bit_int
+ else scan_big_fifteen_bit_int;
+ c:=cur_val;
+ end;
+math_given: c:=((cur_chr div @"1000) * @"10000) + (cur_chr mod @"1000);
+omath_given: c:=((cur_chr div @"10000) * @"100) + (cur_chr mod @"100);
+delim_num: begin
+ if cur_chr=0 then scan_twenty_seven_bit_int
+ else scan_fifty_one_bit_int;
+ c:=cur_val;
+ at z
+%-----------------------------------------------
+ at x
+ if (c>=var_code)and(fam_in_range) then fam(p):=cur_fam
+ else fam(p):=(c div 256) mod 16;
+ at y
+ if (c>=var_code)and(fam_in_range) then fam(p):=cur_fam
+ else fam(p):=(c div 256) mod 256;
+ at z
+%-----------------------------------------------
+ at x
+mmode+math_char_num: begin scan_fifteen_bit_int; set_math_char(cur_val);
+ end;
+mmode+math_given: set_math_char(cur_chr);
+mmode+delim_num: begin scan_twenty_seven_bit_int;
+ set_math_char(cur_val div @'10000);
+ at y
+mmode+math_char_num: begin
+ if cur_chr=0 then scan_fifteen_bit_int
+ else scan_big_fifteen_bit_int;
+ set_math_char(cur_val);
+ end;
+mmode+math_given: begin
+ set_math_char(((cur_chr div @"1000) * @"10000)+(cur_chr mod @"1000));
+ end;
+mmode+omath_given: begin
+ set_math_char(((cur_chr div @"10000) * @"100)+(cur_chr mod @"100));
+ end;
+mmode+delim_num: begin
+ if cur_chr=0 then scan_twenty_seven_bit_int
+ else scan_fifty_one_bit_int;
+ set_math_char(cur_val); {character code of left delimiter}
+ at z
+%-----------------------------------------------
+ at x
+procedure set_math_char(@!c:integer);
+var p:pointer; {the new noad}
+begin if c>=@'100000 then
+ @<Treat |cur_chr|...@>
+else begin p:=new_noad; math_type(nucleus(p)):=math_char;
+ character(nucleus(p)):=qi(c mod 256);
+ fam(nucleus(p)):=(c div 256) mod 16;
+ if c>=var_code then
+ begin if fam_in_range then fam(nucleus(p)):=cur_fam;
+ type(p):=ord_noad;
+ end
+ else type(p):=ord_noad+(c div @'10000);
+ link(tail):=p; tail:=p;
+ if font_dir[fam_fnt(fam(nucleus(p))+cur_size)]<>dir_default then begin
+ at y
+procedure set_math_char(@!c:integer);
+var p:pointer; {the new noad}
+begin if c>=@"80000 then
+ @<Treat |cur_chr|...@>
+else begin p:=new_noad; math_type(nucleus(p)):=math_char;
+ character(nucleus(p)):=qi(c mod 256);
+ fam(nucleus(p)):=(c div 256) mod 256;
+ if c>=var_code then
+ begin if fam_in_range then fam(nucleus(p)):=cur_fam;
+ type(p):=ord_noad;
+ end
+ else type(p):=ord_noad+(c div @"10000);
+ link(tail):=p; tail:=p;
+ if font_dir[fam_fnt(fam(nucleus(p))+cur_size)]<>dir_default then begin
+ at z
+%-----------------------------------------------
+ at x
+@<Declare act...@>=
+procedure scan_delimiter(@!p:pointer;@!r:boolean);
+begin if r then scan_twenty_seven_bit_int
+else begin @<Get the next non-blank non-relax...@>;
+ case cur_cmd of
+ letter,other_char: cur_val:=del_code(cur_chr);
+ delim_num: scan_twenty_seven_bit_int;
+ othercases cur_val:=-1
+ endcases;
+ end;
+if cur_val<0 then @<Report that an invalid delimiter code is being changed
+ to null; set~|cur_val:=0|@>;
+small_fam(p):=(cur_val div @'4000000) mod 16;
+small_char(p):=qi((cur_val div @'10000) mod 256);
+large_fam(p):=(cur_val div 256) mod 16;
+large_char(p):=qi(cur_val mod 256);
+end;
+ at y
+@<Declare act...@>=
+procedure scan_delimiter(@!p:pointer;@!r:boolean);
+begin if r=1 then scan_twenty_seven_bit_int
+else if r=2 then scan_fifty_one_bit_int
+else begin @<Get the next non-blank non-relax...@>;
+ case cur_cmd of
+ letter,other_char: begin
+ cur_val:=del_code(cur_chr); cur_val1:=del_code1(cur_chr);
+ end;
+ delim_num: if cur_chr=0 then scan_twenty_seven_bit_int
+ else scan_fifty_one_bit_int;
+ othercases begin cur_val:=-1; cur_val1:=-1; end;
+ endcases;
+ end;
+if cur_val<0 then begin @<Report that an invalid delimiter code is being changed
+ to null; set~|cur_val:=0|@>;
+ cur_val1:=0;
+ end;
+small_fam(p):=(cur_val div @"100) mod @"100;
+small_char(p):=qi(cur_val mod @"100);
+large_fam(p):=(cur_val1 div @"100) mod @"100;
+large_char(p):=qi(cur_val1 mod @"100);
+end;
+ at z
+%-----------------------------------------------
+ at x
+scan_delimiter(left_delimiter(tail),true);
+ at y
+scan_delimiter(left_delimiter(tail),cur_chr+1);
+ at z
+%-----------------------------------------------
+ at x
+scan_fifteen_bit_int;
+character(accent_chr(tail)):=qi(cur_val mod 256);
+if (cur_val>=var_code)and fam_in_range then fam(accent_chr(tail)):=cur_fam
+else fam(accent_chr(tail)):=(cur_val div 256) mod 16;
+ at y
+if cur_chr=0 then scan_fifteen_bit_int
+else scan_big_fifteen_bit_int;
+character(accent_chr(tail)):=qi(cur_val mod 256);
+if (cur_val>=var_code)and fam_in_range then fam(accent_chr(tail)):=cur_fam
+else fam(accent_chr(tail)):=(cur_val div 256) mod 256;
+ at z
+%-----------------------------------------------
+ at x
+begin if (e<>0)and((w-total_shrink[normal]+q<=z)or@|
+ (total_shrink[fil]<>0)or(total_shrink[fill]<>0)or
+ (total_shrink[filll]<>0)) then
+ at y
+begin if (e<>0)and((w-total_shrink[normal]+q<=z)or@|
+ (total_shrink[sfi]<>0)or(total_shrink[fil]<>0)or
+ (total_shrink[fill]<>0)or(total_shrink[filll]<>0)) then
+ at z
+%-----------------------------------------------
+ at x
+ at d word_define(#)==if global then geq_word_define(#)@+else eq_word_define(#)
+ at y
+ at d word_define(#)==if global then geq_word_define(#)@+else eq_word_define(#)
+ at d del_word_define(#)==if global
+ then del_geq_word_define(#)@+else del_eq_word_define(#)
+ at z
+%-----------------------------------------------
+ at x
+ at d count_def_code=2 {|shorthand_def| for \.{\\countdef}}
+ at d dimen_def_code=3 {|shorthand_def| for \.{\\dimendef}}
+ at d skip_def_code=4 {|shorthand_def| for \.{\\skipdef}}
+ at d mu_skip_def_code=5 {|shorthand_def| for \.{\\muskipdef}}
+ at d toks_def_code=6 {|shorthand_def| for \.{\\toksdef}}
+ at d char_sub_def_code=7 {|shorthand_def| for \.{\\charsubdef}}
+ at y
+ at d omath_char_def_code=2 {|shorthand_def| for \.{\\omathchardef}}
+ at d count_def_code=3 {|shorthand_def| for \.{\\countdef}}
+ at d dimen_def_code=4 {|shorthand_def| for \.{\\dimendef}}
+ at d skip_def_code=5 {|shorthand_def| for \.{\\skipdef}}
+ at d mu_skip_def_code=6 {|shorthand_def| for \.{\\muskipdef}}
+ at d toks_def_code=7 {|shorthand_def| for \.{\\toksdef}}
+ at d char_sub_def_code=8 {|shorthand_def| for \.{\\charsubdef}}
+ at z
+%-----------------------------------------------
+ at x
+primitive("mathchardef",shorthand_def,math_char_def_code);@/
+@!@:math_char_def_}{\.{\\mathchardef} primitive@>
+ at y
+primitive("mathchardef",shorthand_def,math_char_def_code);@/
+@!@:math_char_def_}{\.{\\mathchardef} primitive@>
+primitive("omathchardef",shorthand_def,omath_char_def_code);@/
+@!@:math_char_def_}{\.{\\omathchardef} primitive@>
+ at z
+%-----------------------------------------------
+ at x
+ math_char_def_code: print_esc("mathchardef");
+ at y
+ math_char_def_code: print_esc("mathchardef");
+ omath_char_def_code: print_esc("omathchardef");
+ at z
+%-----------------------------------------------
+ at x
+math_given: begin print_esc("mathchar"); print_hex(chr_code);
+ end;
+ at y
+math_given: begin print_esc("mathchar"); print_hex(chr_code);
+ end;
+omath_given: begin print_esc("omathchar"); print_hex(chr_code);
+ end;
+ at z
+%-----------------------------------------------
+ at x
+ math_char_def_code: begin scan_fifteen_bit_int; define(p,math_given,cur_val);
+ at y
+ math_char_def_code: begin scan_real_fifteen_bit_int;
+ define(p,math_given,cur_val);
+ end;
+ omath_char_def_code: begin scan_omega_fifteen_bit_int;
+ define(p,omath_given,cur_val);
+ at z
+%-----------------------------------------------
+ at x
+primitive("mathcode",def_code,math_code_base);
+@!@:math_code_}{\.{\\mathcode} primitive@>
+ at y
+primitive("mathcode",def_code,math_code_base);
+@!@:math_code_}{\.{\\mathcode} primitive@>
+primitive("omathcode",def_code,math_code_base+128);
+@!@:math_code_}{\.{\\omathcode} primitive@>
+ at z
+%-----------------------------------------------
+ at x
+primitive("delcode",def_code,del_code_base);
+@!@:del_code_}{\.{\\delcode} primitive@>
+ at y
+primitive("delcode",def_code,del_code_base);
+@!@:del_code_}{\.{\\delcode} primitive@>
+primitive("odelcode",def_code,del_code_base+128);
+@!@:del_code_}{\.{\\odelcode} primitive@>
+ at z
+%-----------------------------------------------
+ at x
+ else if chr_code=lc_code_base then print_esc("lccode")
+ else if chr_code=uc_code_base then print_esc("uccode")
+ else if chr_code=sf_code_base then print_esc("sfcode")
+ else print_esc("delcode");
+ at y
+ else if chr_code=math_code_base+128 then print_esc("omathcode")
+ else if chr_code=lc_code_base then print_esc("lccode")
+ else if chr_code=uc_code_base then print_esc("uccode")
+ else if chr_code=sf_code_base then print_esc("sfcode")
+ else if chr_code=del_code_base then print_esc("delcode")
+ else print_esc("odelcode");
+ at z
+%-----------------------------------------------
+ at x
+@<Assignments@>=
+def_code: begin
+ @<Let |m| be the minimal legal code value, based on |cur_chr|@>;
+ @<Let |n| be the largest legal code value, based on |cur_chr|@>;
+ p:=cur_chr;
+ if p=kcat_code_base then
+ begin scan_char_num; p:=p+kcatcodekey(cur_val) end
+ else begin scan_ascii_num; p:=p+cur_val; end;
+ scan_optional_equals; scan_int;
+ if ((cur_val<m)and(p<del_code_base))or(cur_val>n) then
+ begin print_err("Invalid code ("); print_int(cur_val);
+ at .Invalid code@>
+ if p<del_code_base then
+ begin print("), should be in the range "); print_int(m); print("..");
+ end
+ else print("), should be at most ");
+ print_int(n);
+ if m=0 then
+ begin help1("I'm going to use 0 instead of that illegal code value.");@/
+ error; cur_val:=0;
+ end
+ else
+ begin help1("I'm going to use 16 instead of that illegal code value.");@/
+ error; cur_val:=16;
+ end;
+ end;
+ if p<math_code_base then define(p,data,cur_val)
+ else if p<del_code_base then define(p,data,hi(cur_val))
+ else word_define(p,cur_val);
+ end;
+ at y
+@<Assignments@>=
+def_code: begin
+ if cur_chr=(del_code_base+128) then begin
+ p:=cur_chr-128; scan_ascii_num; p:=p+cur_val; scan_optional_equals;
+ scan_int; cur_val1:=cur_val; scan_int; {backwards}
+ if (cur_val1>@"FFFFFF) or (cur_val>@"FFFFFF) then
+ begin print_err("Invalid code ("); print_int(cur_val1); print(" ");
+ print_int(cur_val);
+ print("), should be at most ""FFFFFF ""FFFFFF");
+ help1("I'm going to use 0 instead of that illegal code value.");@/
+ error; cur_val1:=0; cur_val:=0;
+ end;
+ cur_val1:=(cur_val1 div @"10000)*@"100+(cur_val1 mod @"100);
+ cur_val:=(cur_val div @"10000)*@"100+(cur_val mod @"100);
+ del_word_define(p,cur_val1,cur_val);
+ end
+ else begin
+ @<Let |m| be the minimal legal code value, based on |cur_chr|@>;
+ @<Let |n| be the largest legal code value, based on |cur_chr|@>;
+ p:=cur_chr; cur_val1:=p;
+ if p=kcat_code_base then begin scan_char_num; p:=p+kcatcodekey(cur_val) end
+ else begin scan_ascii_num; p:=p+cur_val; end;
+ scan_optional_equals; scan_int;
+ if ((cur_val<m)and(p<del_code_base))or(cur_val>n) then
+ begin print_err("Invalid code ("); print_int(cur_val);
+ at .Invalid code@>
+ if p<del_code_base then
+ begin print("), should be in the range "); print_int(m); print("..");
+ end
+ else print("), should be at most ");
+ print_int(n);
+ if m=0 then
+ begin help1("I'm going to use 0 instead of that illegal code value.");@/
+ error; cur_val:=0;
+ end
+ else
+ begin help1("I'm going to use 16 instead of that illegal code value.");@/
+ error; cur_val:=16;
+ end;
+ end;
+ if p<math_code_base then define(p,data,cur_val)
+ else if cur_val1=math_code_base then begin
+ if cur_val=@"8000 then cur_val:=@"80000
+ else cur_val:=((cur_val div @"1000)*@"10000)+(cur_val mod @"1000);
+ define(p,data,hi(cur_val));
+ end
+ else if cur_val1=math_code_base+128 then begin
+ cur_val:=((cur_val div @"10000) * @"100) + (cur_val mod @"100);
+ define(p-128,data,hi(cur_val));
+ end
+ else if cur_val1=del_code_base then begin
+ if cur_val>=0 then begin
+ cur_val1:=cur_val div @"1000;
+ cur_val1:=(cur_val1 div @"1000)*@"10000 + cur_val1 mod @"1000;
+ cur_val:=cur_val mod @"1000;
+ del_word_define(p,cur_val1,cur_val); end
+ else
+ del_word_define(p, -1, cur_val);
+ end
+ else define(p,data,cur_val);
+ end;
+ end;
+ at z
+%-----------------------------------------------
+ at x
+else if cur_chr=kcat_code_base then n:=max_char_code
+else if cur_chr=math_code_base then n:=@'100000
+ at y
+else if cur_chr=kcat_code_base then n:=max_char_code
+else if cur_chr=math_code_base then n:=@"8000
+else if cur_chr=(math_code_base+128) then n:=@"8000000
+ at z
+%-----------------------------------------------
+ at x
+def_family: begin p:=cur_chr; scan_four_bit_int; p:=p+cur_val;
+ at y
+def_family: begin p:=cur_chr; scan_big_four_bit_int; p:=p+cur_val;
+ at z
+%-----------------------------------------------
+ at x
+@ @<Dump regions 5 and 6 of |eqtb|@>=
+repeat j:=k;
+while j<eqtb_size do
+ begin if eqtb[j].int=eqtb[j+1].int then goto found2;
+ incr(j);
+ end;
+l:=eqtb_size+1; goto done2; {|j=eqtb_size|}
+found2: incr(j); l:=j;
+while j<eqtb_size do
+ begin if eqtb[j].int<>eqtb[j+1].int then goto done2;
+ at y
+@ @<Dump regions 5 and 6 of |eqtb|@>=
+repeat j:=k;
+while j<eqtb_size do
+ begin if (eqtb[j].int=eqtb[j+1].int) and@|
+ (getintone(eqtb[j])=getintone(eqtb[j+1])) then goto found2;
+ incr(j);
+ end;
+l:=eqtb_size+1; goto done2; {|j=eqtb_size|}
+found2: incr(j); l:=j;
+while j<eqtb_size do
+ begin if (eqtb[j].int<>eqtb[j+1].int)or@|
+ (getintone(eqtb[j])<>getintone(eqtb[j+1])) then goto done2;
+ at z
+%-----------------------------------------------
+ at x
+ else cur_val:=shrink_order(q);
+ at y
+ else cur_val:=shrink_order(q);
+ if cur_val>normal then cur_val:=cur_val-1; {compatible to \eTeX}
+ at z
+%-----------------------------------------------
+ at x FAM256 65536 Registers
+@ \eTeX\ (in extended mode) supports 32768 (i.e., $2^{15}$) count,
+ at y
+@ \epTeX\ (in extended mode) supports 65536 (i.e., $2^{16}$) count,
+ at z
+%-----------------------------------------------
+ at x
+Similarly there are 32768 mark classes; the command \.{\\marks}|n|
+creates a mark node for a given mark class |0<=n<=32767| (where
+ at y
+Similarly there are 65536 mark classes; the command \.{\\marks}|n|
+creates a mark node for a given mark class |0<=n<=65535| (where
+ at z
+%-----------------------------------------------
+ at x
+not exceed 255 in compatibility mode resp.\ 32767 in extended mode.
+ at y
+not exceed 255 in compatibility mode resp.\ 65535 in extended mode.
+ at z
+%-----------------------------------------------
+ at x
+max_reg_num:=32767;
+max_reg_help_line:="A register number must be between 0 and 32767.";
+ at y
+max_reg_num:=65535;
+max_reg_help_line:="A register number must be between 0 and 65535.";
+ at z
+%-----------------------------------------------
+ at x
+sparse array of the up to 32512 additional registers of each kind and
+one for the sparse array of the up to 32767 additional mark classes.
+The root of each such tree, if it exists, is an index node containing 16
+pointers to subtrees for 4096 consecutive array elements. Similar index
+nodes are the starting points for all nonempty subtrees for 4096, 256,
+and 16 consecutive array elements. These four levels of index nodes are
+followed by a fifth level with nodes for the individual array elements.
+ at y
+sparse array of the up to 65280 additional registers of each kind and
+one for the sparse array of the up to 65535 additional mark classes.
+The root of each such tree, if it exists, is an index node containing 16
+pointers to subtrees for 65536 consecutive array elements. Similar index
+nodes are the starting points for all nonempty subtrees for 65536, 4096,
+256, and 16 consecutive array elements. These five levels of index nodes
+are followed by a sixth level with nodes for the individual array elements.
+ at z
+%-----------------------------------------------
+ at x
+ at d hex_dig1(#)==# div 4096 {the fourth lowest hexadecimal digit}
+ at d hex_dig2(#)==(# div 256) mod 16 {the third lowest hexadecimal digit}
+ at d hex_dig3(#)==(# div 16) mod 16 {the second lowest hexadecimal digit}
+ at d hex_dig4(#)==# mod 16 {the lowest hexadecimal digit}
+ at y
+ at d hex_dig1(#)==# div 65536 {the fifth lowest hexadecimal digit}
+ at d hex_dig2(#)==(# div 4096) mod 16 {the fourth lowest hexadecimal digit}
+ at d hex_dig3(#)==(# div 256) mod 16 {the third lowest hexadecimal digit}
+ at d hex_dig4(#)==(# div 16) mod 16 {the second lowest hexadecimal digit}
+ at d hex_dig5(#)==# mod 16 {the lowest hexadecimal digit}
+ at z
+%-----------------------------------------------
+ at x
+procedure find_sa_element(@!t:small_number;@!n:halfword;@!w:boolean);
+ {sets |cur_val| to sparse array element location or |null|}
+label not_found,not_found1,not_found2,not_found3,not_found4,exit;
+var q:pointer; {for list manipulations}
+@!i:small_number; {a four bit index}
+begin cur_ptr:=sa_root[t];
+if_cur_ptr_is_null_then_return_or_goto(not_found);@/
+q:=cur_ptr; i:=hex_dig1(n); get_sa_ptr;
+if_cur_ptr_is_null_then_return_or_goto(not_found1);@/
+q:=cur_ptr; i:=hex_dig2(n); get_sa_ptr;
+if_cur_ptr_is_null_then_return_or_goto(not_found2);@/
+q:=cur_ptr; i:=hex_dig3(n); get_sa_ptr;
+if_cur_ptr_is_null_then_return_or_goto(not_found3);@/
+q:=cur_ptr; i:=hex_dig4(n); get_sa_ptr;
+if (cur_ptr=null)and w then goto not_found4;
+return;
+not_found: new_index(t,null); {create first level index node}
+sa_root[t]:=cur_ptr; q:=cur_ptr; i:=hex_dig1(n);
+not_found1: new_index(i,q); {create second level index node}
+add_sa_ptr; q:=cur_ptr; i:=hex_dig2(n);
+not_found2: new_index(i,q); {create third level index node}
+add_sa_ptr; q:=cur_ptr; i:=hex_dig3(n);
+not_found3: new_index(i,q); {create fourth level index node}
+add_sa_ptr; q:=cur_ptr; i:=hex_dig4(n);
+not_found4: @<Create a new array element of type |t| with index |i|@>;
+link(cur_ptr):=q; add_sa_ptr;
+exit:end;
+ at y
+procedure find_sa_element(@!t:small_number;@!n:halfword;@!w:boolean);
+ {sets |cur_val| to sparse array element location or |null|}
+label not_found,not_found1,not_found2,not_found3,not_found4,not_found5,exit;
+var q:pointer; {for list manipulations}
+@!i:small_number; {a four bit index}
+begin cur_ptr:=sa_root[t];
+if_cur_ptr_is_null_then_return_or_goto(not_found);@/
+q:=cur_ptr; i:=hex_dig1(n); get_sa_ptr;
+if_cur_ptr_is_null_then_return_or_goto(not_found1);@/
+q:=cur_ptr; i:=hex_dig2(n); get_sa_ptr;
+if_cur_ptr_is_null_then_return_or_goto(not_found2);@/
+q:=cur_ptr; i:=hex_dig3(n); get_sa_ptr;
+if_cur_ptr_is_null_then_return_or_goto(not_found3);@/
+q:=cur_ptr; i:=hex_dig4(n); get_sa_ptr;
+if_cur_ptr_is_null_then_return_or_goto(not_found4);@/
+q:=cur_ptr; i:=hex_dig5(n); get_sa_ptr;
+if (cur_ptr=null)and w then goto not_found5;
+return;
+not_found: new_index(t,null); {create first level index node}
+sa_root[t]:=cur_ptr; q:=cur_ptr; i:=hex_dig1(n);
+not_found1: new_index(i,q); {create second level index node}
+add_sa_ptr; q:=cur_ptr; i:=hex_dig2(n);
+not_found2: new_index(i,q); {create third level index node}
+add_sa_ptr; q:=cur_ptr; i:=hex_dig3(n);
+not_found3: new_index(i,q); {create fourth level index node}
+add_sa_ptr; q:=cur_ptr; i:=hex_dig4(n);
+not_found4: new_index(i,q); {create fifth level index node}
+add_sa_ptr; q:=cur_ptr; i:=hex_dig5(n);
+not_found5: @<Create a new array element of type |t| with index |i|@>;
+link(cur_ptr):=q; add_sa_ptr;
+exit:end;
+ at z
+%-----------------------------------------------
+ at x
+repeat i:=hex_dig4(sa_index(q)); p:=q; q:=link(p); free_node(p,s);
+ at y
+repeat i:=hex_dig5(sa_index(q)); p:=q; q:=link(p); free_node(p,s);
+ at z
+%-----------------------------------------------
+ at x
+else begin n:=hex_dig4(sa_index(q)); q:=link(q); n:=n+16*sa_index(q);
+ q:=link(q); n:=n+256*(sa_index(q)+16*sa_index(link(q)));
+ at y
+else begin n:=hex_dig5(sa_index(q)); q:=link(q); n:=n+16*sa_index(q);
+ q:=link(q); n:=n+256*(sa_index(q)+16*sa_index(link(q)));
+ q:=link(link(q)); n:=n+65536*sa_index(q);
+ at z
+%-----------------------------------------------
+ at x
+begin if l<4 then {|q| is an index node}
+ at y
+begin if l<5 then {|q| is an index node}
+ at z
+%-----------------------------------------------
+ at x
+@!fill_width:array[0..2] of scaled; {infinite stretch components of
+ at y
+@!fill_width:array[0..3] of scaled; {infinite stretch components of
+ at z
+%-----------------------------------------------
+ at x
+ if (background[3]=0)and(background[4]=0)and(background[5]=0) then
+ begin do_last_line_fit:=true;
+ active_node_size:=active_node_size_extended;
+ fill_width[0]:=0; fill_width[1]:=0; fill_width[2]:=0;
+ at y
+ if (background[3]=0)and(background[4]=0)and@|
+ (background[5]=0)and(background[6]=0) then
+ begin do_last_line_fit:=true;
+ active_node_size:=active_node_size_extended;
+ fill_width[0]:=0; fill_width[1]:=0; fill_width[2]:=0; fill_width[3]:=0;
+ at z
+%-----------------------------------------------
+ at x
+if (cur_active_width[3]<>fill_width[0])or@|
+ (cur_active_width[4]<>fill_width[1])or@|
+ (cur_active_width[5]<>fill_width[2]) then goto not_found;
+ {infinite stretch of this line not entirely due to |par_fill_skip|}
+if active_short(r)>0 then g:=cur_active_width[2]
+else g:=cur_active_width[6];
+ at y
+if (cur_active_width[3]<>fill_width[0])or@|
+ (cur_active_width[4]<>fill_width[1])or@|
+ (cur_active_width[5]<>fill_width[2])or@|
+ (cur_active_width[6]<>fill_width[3]) then goto not_found;
+ {infinite stretch of this line not entirely due to |par_fill_skip|}
+if active_short(r)>0 then g:=cur_active_width[2]
+else g:=cur_active_width[7];
+ at z
+%---------------------------------------
+ at x
+begin if -g>cur_active_width[6] then g:=-cur_active_width[6];
+b:=badness(-g,cur_active_width[6]);
+ at y
+begin if -g>cur_active_width[7] then g:=-cur_active_width[7];
+b:=badness(-g,cur_active_width[7]);
+ at z
+%-----------------------------------------------
+ at x
+if shortfall>0 then g:=cur_active_width[2]
+else if shortfall<0 then g:=cur_active_width[6]
+ at y
+if shortfall>0 then g:=cur_active_width[2]
+else if shortfall<0 then g:=cur_active_width[7]
+ at z
Copied: trunk/Build/source/texk/web2c/euptexdir/pdfutils.ch (from rev 69765, trunk/Build/source/texk/web2c/eptexdir/pdfutils.ch)
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/pdfutils.ch (rev 0)
+++ trunk/Build/source/texk/web2c/euptexdir/pdfutils.ch 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,2150 @@
+%% Support for some primitives defined in pdfTeX
+%%
+%% \pdfstrcmp: need for LaTeX3
+%% In comparison, Japanese characters will be always encoded in UTF-8.
+%%
+%% \pdffilemoddate and co.: for standalone package
+%% (\pdfcreationdate, \pdffilemoddate, \pdffilesize)
+%%
+%% \pdfsavepos and co.
+%% (\pdfsavepos, \pdfpage{width,height}, \pdflast{x,y}pos)
+%%
+%% \pdffiledump: for bmpsize package by Heiko Oberdiek
+%%
+%% \pdfshellescape: by doraTeX's request
+%%
+%% \pdfmdfivesum: by Akira's request
+%% As \pdfstrcmp, Japanese characters will be always encoded in UTF-8 in
+%% \pdfmdfivesum {...}. (no conversion for \pdfmdfivesum file <filename>)
+%%
+%% \pdfprimitive and \ifpdfprimitive: for LaTeX3 (2015/07/15)
+%%
+%% \pdfuniformdeviate and co.:
+%% (\pdfnormaldeviate, \pdfrandomseed, \pdfsetrandomseed)
+%%
+%% \pdfelapsedtime and \pdfresettimer
+%%
+%% \expanded
+%%
+%% \ifincsname
+%%
+%% \Uchar, \Ucharcat
+%%
+%% \vadjust pre (2021-07-01)
+
+ at x
+@* \[8] Packed data.
+ at y
+@* \[7b] Random numbers.
+
+\font\tenlogo=logo10 % font used for the METAFONT logo
+\def\MP{{\tenlogo META}\-{\tenlogo POST}}
+\def\pdfTeX{pdf\TeX}
+
+This section is (almost) straight from MetaPost. I had to change
+the types (use |integer| instead of |fraction|), but that should
+not have any influence on the actual calculations (the original
+comments refer to quantities like |fraction_four| ($2^{30}$), and
+that is the same as the numeric representation of |maxdimen|).
+
+I've copied the low-level variables and routines that are needed, but
+only those (e.g. |m_log|), not the accompanying ones like |m_exp|. Most
+of the following low-level numeric routines are only needed within the
+calculation of |norm_rand|. I've been forced to rename |make_fraction|
+to |make_frac| because TeX already has a routine by that name with
+a wholly different function (it creates a |fraction_noad| for math
+typesetting) -- Taco
+
+And now let's complete our collection of numeric utility routines
+by considering random number generation.
+\MP\ generates pseudo-random numbers with the additive scheme recommended
+in Section 3.6 of {\sl The Art of Computer Programming}; however, the
+results are random fractions between 0 and |fraction_one-1|, inclusive.
+
+There's an auxiliary array |randoms| that contains 55 pseudo-random
+fractions. Using the recurrence $x_n=(x_{n-55}-x_{n-31})\bmod 2^{28}$,
+we generate batches of 55 new $x_n$'s at a time by calling |new_randoms|.
+The global variable |j_random| tells which element has most recently
+been consumed.
+
+@<Glob...@>=
+@!randoms:array[0..54] of integer; {the last 55 random values generated}
+@!j_random:0..54; {the number of unused |randoms|}
+@!random_seed:scaled; {the default random seed}
+
+@ A small bit of metafont is needed.
+
+ at d fraction_half==@'1000000000 {$2^{27}$, represents 0.50000000}
+ at d fraction_one==@'2000000000 {$2^{28}$, represents 1.00000000}
+ at d fraction_four==@'10000000000 {$2^{30}$, represents 4.00000000}
+ at d el_gordo == @'17777777777 {$2^{31}-1$, the largest value that \MP\ likes}
+ at d halfp(#)==(#) div 2
+ at d double(#) == #:=#+# {multiply a variable by two}
+
+@ The |make_frac| routine produces the |fraction| equivalent of
+|p/q|, given integers |p| and~|q|; it computes the integer
+$f=\lfloor2^{28}p/q+{1\over2}\rfloor$, when $p$ and $q$ are
+positive. If |p| and |q| are both of the same scaled type |t|,
+the ``type relation'' |make_frac(t,t)=fraction| is valid;
+and it's also possible to use the subroutine ``backwards,'' using
+the relation |make_frac(t,fraction)=t| between scaled types.
+
+If the result would have magnitude $2^{31}$ or more, |make_frac|
+sets |arith_error:=true|. Most of \MP's internal computations have
+been designed to avoid this sort of error.
+
+If this subroutine were programmed in assembly language on a typical
+machine, we could simply compute |(@t$2^{28}$@>*p)div q|, since a
+double-precision product can often be input to a fixed-point division
+instruction. But when we are restricted to \PASCAL\ arithmetic it
+is necessary either to resort to multiple-precision maneuvering
+or to use a simple but slow iteration. The multiple-precision technique
+would be about three times faster than the code adopted here, but it
+would be comparatively long and tricky, involving about sixteen
+additional multiplications and divisions.
+
+This operation is part of \MP's ``inner loop''; indeed, it will
+consume nearly 10\pct! of the running time (exclusive of input and output)
+if the code below is left unchanged. A machine-dependent recoding
+will therefore make \MP\ run faster. The present implementation
+is highly portable, but slow; it avoids multiplication and division
+except in the initial stage. System wizards should be careful to
+replace it with a routine that is guaranteed to produce identical
+results in all cases.
+@^system dependencies@>
+
+As noted below, a few more routines should also be replaced by machine-dependent
+code, for efficiency. But when a procedure is not part of the ``inner loop,''
+such changes aren't advisable; simplicity and robustness are
+preferable to trickery, unless the cost is too high.
+@^inner loop@>
+
+ at p function make_frac(@!p,@!q:integer):integer;
+var @!f:integer; {the fraction bits, with a leading 1 bit}
+@!n:integer; {the integer part of $\vert p/q\vert$}
+@!negative:boolean; {should the result be negated?}
+@!be_careful:integer; {disables certain compiler optimizations}
+begin if p>=0 then negative:=false
+else begin negate(p); negative:=true;
+ end;
+if q<=0 then
+ begin debug if q=0 then confusion("/");@;@+gubed@;@/
+@:this can't happen /}{\quad \./@>
+ negate(q); negative:=not negative;
+ end;
+n:=p div q; p:=p mod q;
+if n>=8 then
+ begin arith_error:=true;
+ if negative then make_frac:=-el_gordo at +else make_frac:=el_gordo;
+ end
+else begin n:=(n-1)*fraction_one;
+ @<Compute $f=\lfloor 2^{28}(1+p/q)+{1\over2}\rfloor$@>;
+ if negative then make_frac:=-(f+n)@+else make_frac:=f+n;
+ end;
+end;
+
+@ The |repeat| loop here preserves the following invariant relations
+between |f|, |p|, and~|q|:
+(i)~|0<=p<q|; (ii)~$fq+p=2^k(q+p_0)$, where $k$ is an integer and
+$p_0$ is the original value of~$p$.
+
+Notice that the computation specifies
+|(p-q)+p| instead of |(p+p)-q|, because the latter could overflow.
+Let us hope that optimizing compilers do not miss this point; a
+special variable |be_careful| is used to emphasize the necessary
+order of computation. Optimizing compilers should keep |be_careful|
+in a register, not store it in memory.
+@^inner loop@>
+
+@<Compute $f=\lfloor 2^{28}(1+p/q)+{1\over2}\rfloor$@>=
+f:=1;
+repeat be_careful:=p-q; p:=be_careful+p;
+if p>=0 then f:=f+f+1
+else begin double(f); p:=p+q;
+ end;
+until f>=fraction_one;
+be_careful:=p-q;
+if be_careful+p>=0 then incr(f)
+
+@
+
+ at p function take_frac(@!q:integer;@!f:integer):integer;
+var @!p:integer; {the fraction so far}
+@!negative:boolean; {should the result be negated?}
+@!n:integer; {additional multiple of $q$}
+@!be_careful:integer; {disables certain compiler optimizations}
+begin @<Reduce to the case that |f>=0| and |q>0|@>;
+if f<fraction_one then n:=0
+else begin n:=f div fraction_one; f:=f mod fraction_one;
+ if q<=el_gordo div n then n:=n*q
+ else begin arith_error:=true; n:=el_gordo;
+ end;
+ end;
+f:=f+fraction_one;
+@<Compute $p=\lfloor qf/2^{28}+{1\over2}\rfloor-q$@>;
+be_careful:=n-el_gordo;
+if be_careful+p>0 then
+ begin arith_error:=true; n:=el_gordo-p;
+ end;
+if negative then take_frac:=-(n+p)
+else take_frac:=n+p;
+end;
+
+@ @<Reduce to the case that |f>=0| and |q>0|@>=
+if f>=0 then negative:=false
+else begin negate(f); negative:=true;
+ end;
+if q<0 then
+ begin negate(q); negative:=not negative;
+ end;
+
+@ The invariant relations in this case are (i)~$\lfloor(qf+p)/2^k\rfloor
+=\lfloor qf_0/2^{28}+{1\over2}\rfloor$, where $k$ is an integer and
+$f_0$ is the original value of~$f$; (ii)~$2^k\L f<2^{k+1}$.
+@^inner loop@>
+
+@<Compute $p=\lfloor qf/2^{28}+{1\over2}\rfloor-q$@>=
+p:=fraction_half; {that's $2^{27}$; the invariants hold now with $k=28$}
+if q<fraction_four then
+ repeat if odd(f) then p:=halfp(p+q)@+else p:=halfp(p);
+ f:=halfp(f);
+ until f=1
+else repeat if odd(f) then p:=p+halfp(q-p)@+else p:=halfp(p);
+ f:=halfp(f);
+ until f=1
+
+@ The subroutines for logarithm and exponential involve two tables.
+The first is simple: |two_to_the[k]| equals $2^k$. The second involves
+a bit more calculation, which the author claims to have done correctly:
+|spec_log[k]| is $2^{27}$ times $\ln\bigl(1/(1-2^{-k})\bigr)=
+2^{-k}+{1\over2}2^{-2k}+{1\over3}2^{-3k}+\cdots\,$, rounded to the
+nearest integer.
+
+@<Glob...@>=
+@!two_to_the:array[0..30] of integer; {powers of two}
+@!spec_log:array[1..28] of integer; {special logarithms}
+
+
+@ @<Set init...@>=
+two_to_the[0]:=1;
+for k:=1 to 30 do two_to_the[k]:=2*two_to_the[k-1];
+spec_log[1]:=93032640;
+spec_log[2]:=38612034;
+spec_log[3]:=17922280;
+spec_log[4]:=8662214;
+spec_log[5]:=4261238;
+spec_log[6]:=2113709;
+spec_log[7]:=1052693;
+spec_log[8]:=525315;
+spec_log[9]:=262400;
+spec_log[10]:=131136;
+spec_log[11]:=65552;
+spec_log[12]:=32772;
+spec_log[13]:=16385;
+for k:=14 to 27 do spec_log[k]:=two_to_the[27-k];
+spec_log[28]:=1;
+
+@
+
+ at p function m_log(@!x:integer):integer;
+var @!y,@!z:integer; {auxiliary registers}
+@!k:integer; {iteration counter}
+begin if x<=0 then @<Handle non-positive logarithm@>
+else begin y:=1302456956+4-100; {$14\times2^{27}\ln2\approx1302456956.421063$}
+ z:=27595+6553600; {and $2^{16}\times .421063\approx 27595$}
+ while x<fraction_four do
+ begin double(x); y:=y-93032639; z:=z-48782;
+ end; {$2^{27}\ln2\approx 93032639.74436163$
+ and $2^{16}\times.74436163\approx 48782$}
+ y:=y+(z div unity); k:=2;
+ while x>fraction_four+4 do
+ @<Increase |k| until |x| can be multiplied by a
+ factor of $2^{-k}$, and adjust $y$ accordingly@>;
+ m_log:=y div 8;
+ end;
+end;
+
+@ @<Increase |k| until |x| can...@>=
+begin z:=((x-1) div two_to_the[k])+1; {$z=\lceil x/2^k\rceil$}
+while x<fraction_four+z do
+ begin z:=halfp(z+1); k:=k+1;
+ end;
+y:=y+spec_log[k]; x:=x-z;
+end
+
+@ @<Handle non-positive logarithm@>=
+begin print_err("Logarithm of ");
+ at .Logarithm...replaced by 0@>
+print_scaled(x); print(" has been replaced by 0");
+help2("Since I don't take logs of non-positive numbers,")@/
+ ("I'm zeroing this one. Proceed, with fingers crossed.");
+error; m_log:=0;
+end
+
+@ The following somewhat different subroutine tests rigorously if $ab$ is
+greater than, equal to, or less than~$cd$,
+given integers $(a,b,c,d)$. In most cases a quick decision is reached.
+The result is $+1$, 0, or~$-1$ in the three respective cases.
+
+ at d return_sign(#)==begin ab_vs_cd:=#; return;
+ end
+
+ at p function ab_vs_cd(@!a,b,c,d:integer):integer;
+label exit;
+var @!q,@!r:integer; {temporary registers}
+begin @<Reduce to the case that |a,c>=0|, |b,d>0|@>;
+loop at + begin q := a div d; r := c div b;
+ if q<>r then
+ if q>r then return_sign(1)@+else return_sign(-1);
+ q := a mod d; r := c mod b;
+ if r=0 then
+ if q=0 then return_sign(0)@+else return_sign(1);
+ if q=0 then return_sign(-1);
+ a:=b; b:=q; c:=d; d:=r;
+ end; {now |a>d>0| and |c>b>0|}
+exit:end;
+
+@ @<Reduce to the case that |a...@>=
+if a<0 then
+ begin negate(a); negate(b);
+ end;
+if c<0 then
+ begin negate(c); negate(d);
+ end;
+if d<=0 then
+ begin if b>=0 then
+ if ((a=0)or(b=0))and((c=0)or(d=0)) then return_sign(0)
+ else return_sign(1);
+ if d=0 then
+ if a=0 then return_sign(0)@+else return_sign(-1);
+ q:=a; a:=c; c:=q; q:=-b; b:=-d; d:=q;
+ end
+else if b<=0 then
+ begin if b<0 then if a>0 then return_sign(-1);
+ if c=0 then return_sign(0) else return_sign(-1);
+ end
+
+@ To consume a random integer, the program below will say `|next_random|'
+and then it will fetch |randoms[j_random]|.
+
+ at d next_random==if j_random=0 then new_randoms
+ else decr(j_random)
+
+ at p procedure new_randoms;
+var @!k:0..54; {index into |randoms|}
+@!x:integer; {accumulator}
+begin for k:=0 to 23 do
+ begin x:=randoms[k]-randoms[k+31];
+ if x<0 then x:=x+fraction_one;
+ randoms[k]:=x;
+ end;
+for k:=24 to 54 do
+ begin x:=randoms[k]-randoms[k-24];
+ if x<0 then x:=x+fraction_one;
+ randoms[k]:=x;
+ end;
+j_random:=54;
+end;
+
+@ To initialize the |randoms| table, we call the following routine.
+
+ at p procedure init_randoms(@!seed:integer);
+var @!j,@!jj,@!k:integer; {more or less random integers}
+@!i:0..54; {index into |randoms|}
+begin j:=abs(seed);
+while j>=fraction_one do j:=halfp(j);
+k:=1;
+for i:=0 to 54 do
+ begin jj:=k; k:=j-k; j:=jj;
+ if k<0 then k:=k+fraction_one;
+ randoms[(i*21)mod 55]:=j;
+ end;
+new_randoms; new_randoms; new_randoms; {``warm up'' the array}
+end;
+
+@ To produce a uniform random number in the range |0<=u<x| or |0>=u>x|
+or |0=u=x|, given a |scaled| value~|x|, we proceed as shown here.
+
+Note that the call of |take_frac| will produce the values 0 and~|x|
+with about half the probability that it will produce any other particular
+values between 0 and~|x|, because it rounds its answers.
+
+ at p function unif_rand(@!x:integer):integer;
+var @!y:integer; {trial value}
+begin next_random; y:=take_frac(abs(x),randoms[j_random]);
+if y=abs(x) then unif_rand:=0
+else if x>0 then unif_rand:=y
+else unif_rand:=-y;
+end;
+
+@ Finally, a normal deviate with mean zero and unit standard deviation
+can readily be obtained with the ratio method (Algorithm 3.4.1R in
+{\sl The Art of Computer Programming\/}).
+
+ at p function norm_rand:integer;
+var @!x,@!u,@!l:integer; {what the book would call $2^{16}X$, $2^{28}U$,
+ and $-2^{24}\ln U$}
+begin repeat
+ repeat next_random;
+ x:=take_frac(112429,randoms[j_random]-fraction_half);
+ {$2^{16}\sqrt{8/e}\approx 112428.82793$}
+ next_random; u:=randoms[j_random];
+ until abs(x)<u;
+x:=make_frac(x,u);
+l:=139548960-m_log(u); {$2^{24}\cdot12\ln2\approx139548959.6165$}
+until ab_vs_cd(1024,l,x,x)>=0;
+norm_rand:=x;
+end;
+@* \[8] Packed data.
+ at z
+
+% [10] \vadjust pre
+ at x
+ at d adjust_ptr(#)==mem[#+1].int
+ {vertical list to be moved out of horizontal list}
+ at y
+ at d adjust_pre == subtype {<>0 => pre-adjustment}
+@#{|append_list| is used to append a list to |tail|}
+ at d append_list(#) == begin link(tail) := link(#); append_list_end
+ at d append_list_end(#) == tail := #; end
+
+ at d adjust_ptr(#)==mem[#+1].int
+ {vertical list to be moved out of horizontal list}
+ at z
+
+% [11] \vadjust pre
+ at x
+ at d hi_mem_stat_min==mem_top-13 {smallest statically allocated word in
+ the one-word |mem|}
+ at d hi_mem_stat_usage=14 {the number of one-word nodes always present}
+ at y
+ at d pre_adjust_head==mem_top-14 {head of pre-adjustment list returned by |hpack|}
+ at d hi_mem_stat_min==mem_top-14 {smallest statically allocated word in
+ the one-word |mem|}
+ at d hi_mem_stat_usage=15 {the number of one-word nodes always present}
+ at z
+
+ at x
+@* \[12] Displaying boxes.
+ at y
+@<Declare procedures that need to be declared forward for \pdfTeX@>@;
+
+@* \[12] Displaying boxes.
+ at z
+
+% [12] \vadjust pre
+ at x
+@ @<Display adjustment |p|@>=
+begin print_esc("vadjust"); node_list_display(adjust_ptr(p)); {recursive call}
+end
+ at y
+@ @<Display adjustment |p|@>=
+begin print_esc("vadjust"); if adjust_pre(p) <> 0 then print(" pre ");
+node_list_display(adjust_ptr(p)); {recursive call}
+end
+ at z
+
+ at x \[if]pdfprimitive
+ at d frozen_special=frozen_control_sequence+10
+ {permanent `\.{\\special}'}
+ at d frozen_null_font=frozen_control_sequence+11
+ {permanent `\.{\\nullfont}'}
+ at y
+ at d frozen_special=frozen_control_sequence+10
+ {permanent `\.{\\special}'}
+ at d frozen_primitive=frozen_control_sequence+11
+ {permanent `\.{\\pdfprimitive}'}
+ at d prim_eqtb_base=frozen_primitive+1
+ at d prim_size=2100 {maximum number of primitives }
+ at d frozen_null_font=prim_eqtb_base+prim_size+1
+ {permanent `\.{\\nullfont}'}
+ at z
+
+ at x
+ at d dimen_pars=23 {total number of dimension parameters}
+ at y
+ at d pdf_page_width_code=23 {page width}
+ at d pdf_page_height_code=24 {page height}
+ at d dimen_pars=25 {total number of dimension parameters}
+ at z
+
+ at x \pdfpage{width,height}
+ at d emergency_stretch==dimen_par(emergency_stretch_code)
+ at y
+ at d emergency_stretch==dimen_par(emergency_stretch_code)
+ at d pdf_page_width==dimen_par(pdf_page_width_code)
+ at d pdf_page_height==dimen_par(pdf_page_height_code)
+ at z
+
+ at x \pdfpage{width,height}
+emergency_stretch_code:print_esc("emergencystretch");
+ at y
+emergency_stretch_code:print_esc("emergencystretch");
+pdf_page_width_code: print_esc("pdfpagewidth");
+pdf_page_height_code: print_esc("pdfpageheight");
+ at z
+
+ at x \[if]pdfprimitive
+@!cs_count:integer; {total number of known identifiers}
+ at y
+@!cs_count:integer; {total number of known identifiers}
+
+@ Primitive support needs a few extra variables and definitions
+
+ at d prim_prime=1777 {about 85\pct! of |primitive_size|}
+ at d prim_base=1
+ at d prim_next(#) == prim[#].lh {link for coalesced lists}
+ at d prim_text(#) == prim[#].rh {string number for control sequence name, plus one}
+ at d prim_is_full == (prim_used=prim_base) {test if all positions are occupied}
+ at d prim_eq_level_field(#)==#.hh.b1
+ at d prim_eq_type_field(#)==#.hh.b0
+ at d prim_equiv_field(#)==#.hh.rh
+ at d prim_eq_level(#)==prim_eq_level_field(eqtb[prim_eqtb_base+#]) {level of definition}
+ at d prim_eq_type(#)==prim_eq_type_field(eqtb[prim_eqtb_base+#]) {command code for equivalent}
+ at d prim_equiv(#)==prim_equiv_field(eqtb[prim_eqtb_base+#]) {equivalent value}
+ at d undefined_primitive=0
+ at d biggest_char=255 { 65535 in XeTeX }
+
+@<Glob...@>=
+@!prim: array [0..prim_size] of two_halves; {the primitives table}
+@!prim_used:pointer; {allocation pointer for |prim|}
+ at z
+
+ at x \[if]pdfprimitive
+@ @<Set init...@>=
+no_new_control_sequence:=true; {new identifiers are usually forbidden}
+ at y
+@ @<Set init...@>=
+no_new_control_sequence:=true; {new identifiers are usually forbidden}
+prim_next(0):=0; prim_text(0):=0;
+for k:=1 to prim_size do prim[k]:=prim[0];
+ at z
+
+ at x \[if]pdfprimitive
+text(frozen_dont_expand):="notexpanded:";
+ at .notexpanded:@>
+ at y
+prim_used:=prim_size; {nothing is used}
+text(frozen_dont_expand):="notexpanded:";
+ at .notexpanded:@>
+eq_type(frozen_primitive):=ignore_spaces;
+equiv(frozen_primitive):=1;
+eq_level(frozen_primitive):=level_one;
+text(frozen_primitive):="pdfprimitive";
+ at z
+
+ at x \[if]pdfprimitive
+@ Single-character control sequences do not need to be looked up in a hash
+table, since we can use the character code itself as a direct address.
+ at y
+@ Here is the subroutine that searches the primitive table for an identifier
+
+ at p function prim_lookup(@!s:str_number):pointer; {search the primitives table}
+label found; {go here if you found it}
+var h:integer; {hash code}
+@!p:pointer; {index in |hash| array}
+@!k:pointer; {index in string pool}
+@!j,@!l:integer;
+begin
+if s<=biggest_char then begin
+ if s<0 then begin p:=undefined_primitive; goto found; end
+ else p:=(s mod prim_prime)+prim_base; {we start searching here}
+ l:=1
+ end
+else begin
+ j:=str_start[s];
+ if s = str_ptr then l := cur_length else l := length(s);
+ @<Compute the primitive code |h|@>;
+ p:=h+prim_base; {we start searching here; note that |0<=h<prim_prime|}
+ end;
+loop at +begin
+ if prim_text(p)>1+biggest_char then { |p| points a multi-letter primitive }
+ begin if length(prim_text(p)-1)=l then
+ if str_eq_str(prim_text(p)-1,s) then goto found;
+ end
+ else if prim_text(p)=1+s then goto found; { |p| points a single-letter primitive }
+ if prim_next(p)=0 then
+ begin if no_new_control_sequence then
+ p:=undefined_primitive
+ else @<Insert a new primitive after |p|, then make
+ |p| point to it@>;
+ goto found;
+ end;
+ p:=prim_next(p);
+ end;
+found: prim_lookup:=p;
+end;
+
+@ @<Insert a new primitive...@>=
+begin if prim_text(p)>0 then
+ begin repeat if prim_is_full then overflow("primitive size",prim_size);
+@:TeX capacity exceeded primitive size}{\quad primitive size@>
+ decr(prim_used);
+ until prim_text(prim_used)=0; {search for an empty location in |prim|}
+ prim_next(p):=prim_used; p:=prim_used;
+ end;
+prim_text(p):=s+1;
+end
+
+@ The value of |prim_prime| should be roughly 85\pct! of
+|prim_size|, and it should be a prime number.
+
+@<Compute the primitive code |h|@>=
+h:=str_pool[j];
+for k:=j+1 to j+l-1 do
+ begin h:=h+h+str_pool[k];
+ while h>=prim_prime do h:=h-prim_prime;
+ end
+
+@ Single-character control sequences do not need to be looked up in a hash
+table, since we can use the character code itself as a direct address.
+ at z
+
+ at x print_cs: \pdfprimitive
+else begin l:=text(p);
+ at y
+else begin
+ if (p>=prim_eqtb_base)and(p<frozen_null_font) then
+ l:=prim_text(p-prim_eqtb_base)-1 else l:=text(p);
+ at z
+
+ at x
+else print_esc(text(p));
+ at y
+else if (p>=prim_eqtb_base)and(p<frozen_null_font) then
+ print_esc(prim_text(p-prim_eqtb_base)-1)
+else print_esc(text(p));
+ at z
+
+
+ at x \[if]pdfprimitive
+ at p @!init procedure primitive(@!s:str_number;@!c:quarterword;@!o:halfword);
+var k:pool_pointer; {index into |str_pool|}
+ at y
+ at p @!init procedure primitive(@!s:str_number;@!c:quarterword;@!o:halfword);
+var k:pool_pointer; {index into |str_pool|}
+@!prim_val:integer; {needed to fill |prim_eqtb|}
+ at z
+
+ at x \[if]pdfprimitive
+begin if s<256 then cur_val:=s+single_base
+ at y
+begin if s<256 then begin
+ cur_val:=s+single_base;
+ prim_val:=prim_lookup(s);
+end
+ at z
+
+ at x \[if]pdfprimitive
+ flush_string; text(cur_val):=s; {we don't want to have the string twice}
+ end;
+eq_level(cur_val):=level_one; eq_type(cur_val):=c; equiv(cur_val):=o;
+end;
+tini
+ at y
+ flush_string; text(cur_val):=s; {we don't want to have the string twice}
+ prim_val:=prim_lookup(s);
+ end;
+eq_level(cur_val):=level_one; eq_type(cur_val):=c; equiv(cur_val):=o;
+prim_eq_level(prim_val):=level_one;
+prim_eq_type(prim_val):=c;
+prim_equiv(prim_val):=o;
+end;
+tini
+ at z
+
+ at x \[if]pdfprimitive
+ignore_spaces: print_esc("ignorespaces");
+ at y
+ignore_spaces: if chr_code=0 then print_esc("ignorespaces") else print_esc("pdfprimitive");
+ at z
+
+ at x \[if]pdfprimitive
+no_expand: print_esc("noexpand");
+ at y
+no_expand: if chr_code=0 then print_esc("noexpand")
+ else print_esc("pdfprimitive");
+ at z
+
+ at x \ifincsname
+var t:halfword; {token that is being ``expanded after''}
+@!p,@!q,@!r:pointer; {for list manipulation}
+ at y
+var t:halfword; {token that is being ``expanded after''}
+@!b:boolean; {keep track of nested csnames}
+@!p,@!q,@!r:pointer; {for list manipulation}
+ at z
+
+ at x
+@ @<Expand a nonmacro@>=
+ at y
+@ @<Glob...@>=
+@!is_in_csname: boolean;
+
+@ @<Set init...@>=
+is_in_csname := false;
+
+@ @<Expand a nonmacro@>=
+ at z
+
+ at x
+no_expand:@<Suppress expansion of the next token@>;
+ at y
+no_expand: if cur_chr=0 then @<Suppress expansion of the next token@>
+ else @<Implement \.{\\pdfprimitive}@>;
+ at z
+
+ at x
+@<Suppress expansion...@>=
+begin save_scanner_status:=scanner_status; scanner_status:=normal;
+get_token; scanner_status:=save_scanner_status; t:=cur_tok;
+back_input; {now |start| and |loc| point to the backed-up token |t|}
+if (t>=cs_token_flag)and(t<>end_write_token) then
+ begin p:=get_avail; info(p):=cs_token_flag+frozen_dont_expand;
+ link(p):=loc; start:=p; loc:=p;
+ end;
+end
+ at y
+@<Suppress expansion...@>=
+begin save_scanner_status:=scanner_status; scanner_status:=normal;
+get_token; scanner_status:=save_scanner_status; t:=cur_tok;
+back_input; {now |start| and |loc| point to the backed-up token |t|}
+if (t>=cs_token_flag)and(t<>end_write_token) then
+ begin p:=get_avail; info(p):=cs_token_flag+frozen_dont_expand;
+ link(p):=loc; start:=p; loc:=p;
+ end;
+end
+
+@ The \.{\\pdfprimitive} handling. If the primitive meaning of the next
+token is an expandable command, it suffices to replace the current
+token with the primitive one and restart |expand|/
+
+Otherwise, the token we just read has to be pushed back, as well
+as a token matching the internal form of \.{\\pdfprimitive}, that is
+sneaked in as an alternate form of |ignore_spaces|.
+@!@:pdfprimitive_}{\.{\\pdfprimitive} primitive (internalized)@>
+
+Simply pushing back a token that matches the correct internal command
+does not work, because approach would not survive roundtripping to a
+temporary file.
+
+@<Implement \.{\\pdfprimitive}@>=
+begin save_scanner_status := scanner_status; scanner_status:=normal;
+get_token; scanner_status:=save_scanner_status;
+if cur_cs < hash_base then
+ cur_cs := prim_lookup(cur_cs-single_base)
+else
+ cur_cs := prim_lookup(text(cur_cs));
+if cur_cs<>undefined_primitive then begin
+ t := prim_eq_type(cur_cs);
+ if t>max_command then begin
+ cur_cmd := t;
+ cur_chr := prim_equiv(cur_cs);
+ cur_tok := (cur_cmd*@'400)+cur_chr;
+ cur_cs := 0;
+ goto reswitch;
+ end
+ else begin
+ back_input; { now |loc| and |start| point to a one-item list }
+ p:=get_avail; info(p):=cs_token_flag+frozen_primitive;
+ link(p):=loc; loc:=p; start:=p;
+ end;
+ end;
+end
+
+@ This block deals with unexpandable \.{\\primitive} appearing at a spot where
+an integer or an internal values should have been found. It fetches the
+next token then resets |cur_cmd|, |cur_cs|, and |cur_tok|, based on the
+primitive value of that token. No expansion takes place, because the
+next token may be all sorts of things. This could trigger further
+expansion creating new errors.
+
+@<Reset |cur_tok| for unexpandable primitives, goto restart @>=
+begin
+get_token;
+if cur_cs < hash_base then
+ cur_cs := prim_lookup(cur_cs-single_base)
+else
+ cur_cs := prim_lookup(text(cur_cs));
+if cur_cs<>undefined_primitive then begin
+ cur_cmd := prim_eq_type(cur_cs);
+ cur_chr := prim_equiv(cur_cs);
+ cur_cs := prim_eqtb_base+cur_cs;
+ cur_tok := cs_token_flag+cur_cs;
+ end
+else begin
+ cur_cmd := relax;
+ cur_chr := 0;
+ cur_tok := cs_token_flag+frozen_relax;
+ cur_cs := frozen_relax;
+ end;
+goto restart;
+end
+ at z
+
+ at x
+begin r:=get_avail; p:=r; {head of the list of characters}
+repeat get_x_token;
+ at y
+begin r:=get_avail; p:=r; {head of the list of characters}
+b := is_in_csname; is_in_csname := true;
+repeat get_x_token;
+ at z
+
+ at x
+@<Look up the characters of list |r| in the hash table, and set |cur_cs|@>;
+ at y
+is_in_csname := b;
+@<Look up the characters of list |r| in the hash table, and set |cur_cs|@>;
+ at z
+
+ at x scan_keyword
+@!k:pool_pointer; {index into |str_pool|}
+begin p:=backup_head; link(p):=null; k:=str_start[s];
+ at y
+@!k:pool_pointer; {index into |str_pool|}
+@!save_cur_cs:pointer; {to save |cur_cs|}
+begin p:=backup_head; link(p):=null; k:=str_start[s];
+save_cur_cs:=cur_cs;
+ at z
+
+ at x scan_keyword
+ scan_keyword:=false; return;
+ at y
+ cur_cs:=save_cur_cs;
+ scan_keyword:=false; return;
+ at z
+
+ at x \[if]pdfprimitive : scan_something_internal
+procedure scan_something_internal(@!level:small_number;@!negative:boolean);
+ {fetch an internal parameter}
+label exit;
+ at y
+procedure scan_something_internal(@!level:small_number;@!negative:boolean);
+ {fetch an internal parameter}
+label exit, restart;
+ at z
+
+ at x \[if]pdfprimitive : scan_something_internal
+begin m:=cur_chr;
+ at y
+begin restart: m:=cur_chr;
+ at z
+
+ at x \[if]pdfprimitive : scan_something_internal
+last_item: @<Fetch an item in the current node, if appropriate@>;
+ at y
+last_item: @<Fetch an item in the current node, if appropriate@>;
+ignore_spaces: {trap unexpandable primitives}
+ if cur_chr=1 then @<Reset |cur_tok| for unexpandable primitives, goto restart@>;
+ at z
+
+ at x
+ at d ptex_minor_version_code=eptex_version_code+1 {code for \.{\\ptexminorversion}}
+ at y
+ at d ptex_minor_version_code=eptex_version_code+1 {code for \.{\\ptexminorversion}}
+ at d pdf_last_x_pos_code=ptex_minor_version_code+1 {code for \.{\\pdflastxpos}}
+ at d pdf_last_y_pos_code=pdf_last_x_pos_code+1 {code for \.{\\pdflastypos}}
+ at d pdf_shell_escape_code=pdf_last_y_pos_code+1 {code for \.{\\pdflastypos}}
+ at d elapsed_time_code=pdf_shell_escape_code+1 {code for \.{\\pdfelapsedtime}}
+ at d random_seed_code=elapsed_time_code+1 {code for \.{\\pdfrandomseed}}
+ at z
+
+ at x
+ at d eTeX_int=ptex_minor_version_code+1 {first of \eTeX\ codes for integers}
+ at y
+ at d eTeX_int=random_seed_code+1 {first of \eTeX\ codes for integers}
+ at z
+
+ at x \[if]pdfprimitive: scan_int
+ at p procedure scan_int; {sets |cur_val| to an integer}
+label done;
+ at y
+ at p procedure scan_int; {sets |cur_val| to an integer}
+label done, restart;
+ at z
+
+ at x \[if]pdfprimitive: scan_int
+if cur_tok=alpha_token then @<Scan an alphabetic character code into |cur_val|@>
+ at y
+restart:
+if cur_tok=alpha_token then @<Scan an alphabetic character code into |cur_val|@>
+else if cur_tok=cs_token_flag+frozen_primitive then
+ @<Reset |cur_tok| for unexpandable primitives, goto restart@>
+ at z
+
+ at x \Ucharcat: str_toks_cat
+function str_toks(@!b:pool_pointer):pointer;
+ at y
+function str_toks_cat(@!b:pool_pointer;@!cat:small_number):pointer;
+ at z
+
+ at x \Ucharcat: str_toks_cat
+ else if t=" " then t:=space_token
+ else t:=other_token+t;
+ at y
+ else if (t=" ")and(cat=0) then t:=space_token
+ else if (cat=0)or(cat>=kanji) then t:=other_token+t
+ else if cat=active_char then t:= cs_token_flag + active_base + t
+ else t:=left_brace_token*cat+t;
+ at z
+
+ at x \Ucharcat: str_toks_cat
+pool_ptr:=b; str_toks:=p;
+end;
+ at y
+pool_ptr:=b; str_toks_cat:=p;
+end;
+
+function str_toks(@!b:pool_pointer):pointer;
+begin str_toks:=str_toks_cat(b,0); end;
+ at z
+
+ at x
+ at d etex_convert_codes=etex_convert_base+1 {end of \eTeX's command codes}
+ at d job_name_code=etex_convert_codes {command code for \.{\\jobname}}
+ at y
+ at d etex_convert_codes=etex_convert_base+1 {end of \eTeX's command codes}
+ at d expanded_code = etex_convert_codes {command code for \.{\\expanded}}
+ at d pdf_first_expand_code = expanded_code + 1 {base for \pdfTeX-like command codes}
+ at d pdf_strcmp_code = pdf_first_expand_code+0 {command code for \.{\\pdfstrcmp}}
+ at d pdf_creation_date_code = pdf_first_expand_code+1 {command code for \.{\\pdfcreationdate}}
+ at d pdf_file_mod_date_code = pdf_first_expand_code+2 {command code for \.{\\pdffilemoddate}}
+ at d pdf_file_size_code = pdf_first_expand_code+3 {command code for \.{\\pdffilesize}}
+ at d pdf_mdfive_sum_code = pdf_first_expand_code+4 {command code for \.{\\pdfmdfivesum}}
+ at d pdf_file_dump_code = pdf_first_expand_code+5 {command code for \.{\\pdffiledump}}
+ at d uniform_deviate_code = pdf_first_expand_code+6 {command code for \.{\\pdfuniformdeviate}}
+ at d normal_deviate_code = pdf_first_expand_code+7 {command code for \.{\\pdfnormaldeviate}}
+ at d pdf_convert_codes = pdf_first_expand_code+8 {end of \pdfTeX-like command codes}
+ at d Uchar_convert_code = pdf_convert_codes {command code for \.{\\Uchar}}
+ at d Ucharcat_convert_code = pdf_convert_codes+1 {command code for \.{\\Ucharcat}}
+ at d eptex_convert_codes = pdf_convert_codes+2 {end of \epTeX's command codes}
+ at d job_name_code=eptex_convert_codes {command code for \.{\\jobname}}
+ at z
+
+ at x
+primitive("jobname",convert,job_name_code);@/
+ at y
+@#
+primitive("expanded",convert,expanded_code);@/
+@!@:expanded_}{\.{\\expanded} primitive@>
+@#
+primitive("jobname",convert,job_name_code);@/
+ at z
+
+ at x
+ eTeX_revision_code: print_esc("eTeXrevision");
+ at y
+ eTeX_revision_code: print_esc("eTeXrevision");
+ expanded_code: print_esc("expanded");
+ pdf_strcmp_code: print_esc("pdfstrcmp");
+ pdf_creation_date_code: print_esc("pdfcreationdate");
+ pdf_file_mod_date_code: print_esc("pdffilemoddate");
+ pdf_file_size_code: print_esc("pdffilesize");
+ pdf_mdfive_sum_code: print_esc("pdfmdfivesum");
+ pdf_file_dump_code: print_esc("pdffiledump");
+ uniform_deviate_code: print_esc("pdfuniformdeviate");
+ normal_deviate_code: print_esc("pdfnormaldeviate");
+ Uchar_convert_code: print_esc("Uchar");
+ Ucharcat_convert_code: print_esc("Ucharcat");
+ at z
+
+ at x
+ at p procedure conv_toks;
+ at y
+
+The extra temp string |u| is needed because |pdf_scan_ext_toks| incorporates
+any pending string in its output. In order to save such a pending string,
+we have to create a temporary string that is destroyed immediately after.
+
+ at d save_cur_string==if str_start[str_ptr]<pool_ptr then u:=make_string else u:=0
+ at d restore_cur_string==if u<>0 then decr(str_ptr)
+
+@ Not all catcode values are allowed by \.{\\Ucharcat}:
+ at d illegal_Ucharcat_ascii_catcode(#)==(#<left_brace)or(#>active_char)or(#=out_param)or(#=ignore)
+ at d illegal_Ucharcat_wchar_catcode(#)==(#<kanji)or(#>other_kchar)
+
+ at p procedure conv_toks;
+ at z
+
+ at x
+@!save_scanner_status:small_number; {|scanner_status| upon entry}
+ at y
+@!save_scanner_status:small_number; {|scanner_status| upon entry}
+@!save_def_ref: pointer; {|def_ref| upon entry, important if inside `\.{\\message}'}
+@!save_warning_index: pointer;
+@!bool: boolean; {temp boolean}
+@!u: str_number; {saved current string string}
+@!s: str_number; {first temp string}
+@!i: integer;
+@!j: integer;
+@!cat:small_number; {desired catcode, or 0 for automatic |spacer|/|other_char| selection}
+ at z
+
+ at x
+begin c:=cur_chr; @<Scan the argument for command |c|@>;
+ at y
+begin cat:=0; c:=cur_chr; @<Scan the argument for command |c|@>;
+u:=0; { will become non-nil if a string is already being built}
+ at z
+
+ at x
+selector:=old_setting; link(garbage):=str_toks(b); ins_list(link(temp_head));
+ at y
+selector:=old_setting; link(garbage):=str_toks_cat(b,cat); ins_list(link(temp_head));
+ at z
+
+ at x
+eTeX_revision_code: do_nothing;
+ at y
+eTeX_revision_code: do_nothing;
+expanded_code:
+ begin
+ save_scanner_status := scanner_status;
+ save_warning_index := warning_index;
+ save_def_ref := def_ref;
+ save_cur_string;
+ scan_pdf_ext_toks;
+ warning_index := save_warning_index;
+ scanner_status := save_scanner_status;
+ ins_list(link(def_ref));
+ free_avail(def_ref);
+ def_ref := save_def_ref;
+ restore_cur_string;
+ return;
+ end;
+pdf_strcmp_code:
+ begin
+ save_scanner_status := scanner_status;
+ save_warning_index := warning_index;
+ save_def_ref := def_ref;
+ save_cur_string;
+ compare_strings;
+ def_ref := save_def_ref;
+ warning_index := save_warning_index;
+ scanner_status := save_scanner_status;
+ restore_cur_string;
+ end;
+pdf_creation_date_code:
+ begin
+ b := pool_ptr;
+ getcreationdate;
+ link(garbage) := str_toks(b);
+ ins_list(link(temp_head));
+ return;
+ end;
+pdf_file_mod_date_code:
+ begin
+ save_scanner_status := scanner_status;
+ save_warning_index := warning_index;
+ save_def_ref := def_ref;
+ save_cur_string;
+ scan_pdf_ext_toks;
+ s := tokens_to_string(def_ref);
+ delete_token_ref(def_ref);
+ def_ref := save_def_ref;
+ warning_index := save_warning_index;
+ scanner_status := save_scanner_status;
+ b := pool_ptr;
+ getfilemoddate(s);
+ link(garbage) := str_toks(b);
+ flush_str(s);
+ ins_list(link(temp_head));
+ restore_cur_string;
+ return;
+ end;
+pdf_file_size_code:
+ begin
+ save_scanner_status := scanner_status;
+ save_warning_index := warning_index;
+ save_def_ref := def_ref;
+ save_cur_string;
+ scan_pdf_ext_toks;
+ s := tokens_to_string(def_ref);
+ delete_token_ref(def_ref);
+ def_ref := save_def_ref;
+ warning_index := save_warning_index;
+ scanner_status := save_scanner_status;
+ b := pool_ptr;
+ getfilesize(s);
+ link(garbage) := str_toks(b);
+ flush_str(s);
+ ins_list(link(temp_head));
+ restore_cur_string;
+ return;
+ end;
+pdf_mdfive_sum_code:
+ begin
+ save_scanner_status := scanner_status;
+ save_warning_index := warning_index;
+ save_def_ref := def_ref;
+ save_cur_string;
+ bool := scan_keyword("file");
+ scan_pdf_ext_toks;
+ if bool then s := tokens_to_string(def_ref)
+ else begin
+ isprint_utf8:=true; s := tokens_to_string(def_ref); isprint_utf8:=false;
+ end;
+ delete_token_ref(def_ref);
+ def_ref := save_def_ref;
+ warning_index := save_warning_index;
+ scanner_status := save_scanner_status;
+ b := pool_ptr;
+ getmd5sum(s, bool);
+ link(garbage) := str_toks(b);
+ flush_str(s);
+ ins_list(link(temp_head));
+ restore_cur_string;
+ return;
+ end;
+pdf_file_dump_code:
+ begin
+ save_scanner_status := scanner_status;
+ save_warning_index := warning_index;
+ save_def_ref := def_ref;
+ save_cur_string;
+ {scan offset}
+ cur_val := 0;
+ if (scan_keyword("offset")) then begin
+ scan_int;
+ if (cur_val < 0) then begin
+ print_err("Bad file offset");
+ at .Bad file offset@>
+ help2("A file offset must be between 0 and 2^{31}-1,")@/
+ ("I changed this one to zero.");
+ int_error(cur_val);
+ cur_val := 0;
+ end;
+ end;
+ i := cur_val;
+ {scan length}
+ cur_val := 0;
+ if (scan_keyword("length")) then begin
+ scan_int;
+ if (cur_val < 0) then begin
+ print_err("Bad dump length");
+ at .Bad dump length@>
+ help2("A dump length must be between 0 and 2^{31}-1,")@/
+ ("I changed this one to zero.");
+ int_error(cur_val);
+ cur_val := 0;
+ end;
+ end;
+ j := cur_val;
+ {scan file name}
+ scan_pdf_ext_toks;
+ s := tokens_to_string(def_ref);
+ delete_token_ref(def_ref);
+ def_ref := save_def_ref;
+ warning_index := save_warning_index;
+ scanner_status := save_scanner_status;
+ b := pool_ptr;
+ getfiledump(s, i, j);
+ link(garbage) := str_toks(b);
+ flush_str(s);
+ ins_list(link(temp_head));
+ restore_cur_string;
+ return;
+ end;
+uniform_deviate_code: scan_int;
+normal_deviate_code: do_nothing;
+Uchar_convert_code: scan_char_num;
+Ucharcat_convert_code:
+ begin
+ scan_ascii_num;
+ i:=cur_val;
+ scan_int;
+ if illegal_Ucharcat_ascii_catcode(cur_val) then
+ begin print_err("Invalid code ("); print_int(cur_val);
+ at .Invalid code@>
+ print("), should be in the ranges 1..4, 6..8, 10..13");
+ help1("I'm going to use 12 instead of that illegal code value.");@/
+ error; cat:=12;
+ end else cat:=cur_val;
+ cur_val:=i;
+ end;
+ at z
+
+ at x
+eTeX_revision_code: print(eTeX_revision);
+ at y
+eTeX_revision_code: print(eTeX_revision);
+pdf_strcmp_code: print_int(cur_val);
+uniform_deviate_code: print_int(unif_rand(cur_val));
+normal_deviate_code: print_int(norm_rand);
+Uchar_convert_code:
+if is_char_ascii(cur_val) then print_char(cur_val) else print_kanji(cur_val);
+Ucharcat_convert_code:
+if cat<kanji then print_char(cur_val) else print_kanji(cur_val);
+ at z
+
+ at x e-pTeX: if primitives - leave room for \ifincsname
+ at d if_tdir_code=if_case_code+4 { `\.{\\iftdir}' }
+ at y
+ at d if_in_csname_code=20 { `\.{\\ifincsname}'; |if_font_char_code| + 1 }
+ at d if_pdfprimitive_code=21 { `\.{\\ifpdfprimitive}' }
+@#
+ at d if_tdir_code=if_pdfprimitive_code+1 { `\.{\\iftdir}' }
+ at z
+
+ at x \[if]pdfprimitive
+ if_mbox_code:print_esc("ifmbox");
+ at y
+ if_mbox_code:print_esc("ifmbox");
+ if_pdfprimitive_code:print_esc("ifpdfprimitive");
+ at z
+
+ at x \ifincsname
+var b:boolean; {is the condition true?}
+@!r:"<"..">"; {relation to be evaluated}
+ at y
+var b:boolean; {is the condition true?}
+@!e:boolean; {keep track of nested csnames}
+@!r:"<"..">"; {relation to be evaluated}
+ at z
+
+ at x \[if]pdfprimitive
+if_void_code, if_hbox_code, if_vbox_code: @<Test box register status@>;
+ at y
+if_void_code, if_hbox_code, if_vbox_code: @<Test box register status@>;
+if_pdfprimitive_code: begin
+ save_scanner_status:=scanner_status;
+ scanner_status:=normal;
+ get_next;
+ scanner_status:=save_scanner_status;
+ if cur_cs < hash_base then
+ m := prim_lookup(cur_cs-single_base)
+ else
+ m := prim_lookup(text(cur_cs));
+ b :=((cur_cmd<>undefined_cs) and
+ (m<>undefined_primitive) and
+ (cur_cmd=prim_eq_type(m)) and
+ (cur_chr=prim_equiv(m)));
+ end;
+ at z
+
+ at x
+@ @<Initialize variables as |ship_out| begins@>=
+ at y
+@ @<Initialize variables as |ship_out| begins@>=
+@<Calculate DVI page dimensions and margins@>;
+ at z
+
+% [33] \vadjust pre
+ at x
+if adjust_tail<>null then link(adjust_tail):=null;
+ at y
+if adjust_tail<>null then link(adjust_tail):=null;
+if pre_adjust_tail<>null then link(pre_adjust_tail):=null;
+ at z
+
+% [33] \vadjust pre
+ at x
+ ins_node,mark_node,adjust_node: if adjust_tail<>null then
+ at y
+ ins_node,mark_node,adjust_node: if (adjust_tail<>null) or (pre_adjust_tail<> null) then
+ at z
+
+% [33] \vadjust pre
+ at x
+to make a deletion.
+@^inner loop@>
+ at y
+to make a deletion.
+@^inner loop@>
+
+@<Glob...@>=
+@!pre_adjust_tail: pointer;
+
+@ @<Set init...@>=
+pre_adjust_tail := null;
+
+@ Materials in \.{\\vadjust} used with \.{pre} keyword will be appended to
+|pre_adjust_tail| instead of |adjust_tail|.
+
+ at d update_adjust_list(#) == begin
+ if # = null then
+ confusion("pre vadjust");
+ link(#) := adjust_ptr(p);
+ while link(#) <> null do
+ # := link(#);
+end
+ at z
+
+% [33] \vadjust pre
+ at x
+@<Transfer node |p| to the adjustment list@>=
+begin while link(q)<>p do q:=link(q);
+if type(p)=adjust_node then
+ begin link(adjust_tail):=adjust_ptr(p);
+ while link(adjust_tail)<>null do adjust_tail:=link(adjust_tail);
+ p:=link(p); free_node(link(q),small_node_size);
+ end
+else begin link(adjust_tail):=p; adjust_tail:=p; p:=link(p);
+ end;
+link(q):=p; p:=q;
+ at y
+@<Transfer node |p| to the adjustment list@>=
+begin while link(q)<>p do q:=link(q);
+ if type(p) = adjust_node then begin
+ if adjust_pre(p) <> 0 then
+ update_adjust_list(pre_adjust_tail)
+ else
+ update_adjust_list(adjust_tail);
+ p := link(p); free_node(link(q), small_node_size);
+ end
+else begin link(adjust_tail):=p; adjust_tail:=p; p:=link(p);
+ end;
+link(q):=p; p:=q;
+ at z
+
+% [37] \vadjust pre
+ at x
+ at d align_stack_node_size=5 {number of |mem| words to save alignment states}
+ at y
+ at d align_stack_node_size=6 {number of |mem| words to save alignment states}
+ at z
+
+% [37] \vadjust pre
+ at x
+@!cur_head,@!cur_tail:pointer; {adjustment list pointers}
+ at y
+@!cur_head,@!cur_tail:pointer; {adjustment list pointers}
+@!cur_pre_head,@!cur_pre_tail:pointer; {pre-adjustment list pointers}
+ at z
+
+% [37] \vadjust pre
+ at x
+cur_head:=null; cur_tail:=null;
+ at y
+cur_head:=null; cur_tail:=null;
+cur_pre_head:=null; cur_pre_tail:=null;
+ at z
+
+% [37] procedure |push_alignment|: \vadjust pre
+ at x
+info(p+4):=cur_head; link(p+4):=cur_tail;
+align_ptr:=p;
+cur_head:=get_avail;
+ at y
+info(p+4):=cur_head; link(p+4):=cur_tail;
+info(p+5):=cur_pre_head; link(p+5):=cur_pre_tail;
+align_ptr:=p;
+cur_head:=get_avail;
+cur_pre_head:=get_avail;
+ at z
+
+% [37] procedure |pop_alignment|: \vadjust pre
+ at x
+begin free_avail(cur_head);
+p:=align_ptr;
+cur_tail:=link(p+4); cur_head:=info(p+4);
+ at y
+begin free_avail(cur_head);
+free_avail(cur_pre_head);
+p:=align_ptr;
+cur_tail:=link(p+4); cur_head:=info(p+4);
+cur_pre_tail:=link(p+5); cur_pre_head:=info(p+5);
+ at z
+
+% [37] \vadjust pre
+ at x
+cur_align:=link(preamble); cur_tail:=cur_head; init_span(cur_align);
+ at y
+cur_align:=link(preamble); cur_tail:=cur_head; cur_pre_tail:=cur_pre_head;
+init_span(cur_align);
+ at z
+
+% [37] \vadjust pre + pTeX
+ at x
+ begin adjust_tail:=cur_tail; adjust_hlist(head,false);
+ at y
+ begin adjust_tail:=cur_tail; pre_adjust_tail:=cur_pre_tail;
+ adjust_hlist(head,false);
+ at z
+
+% [37] \vadjust pre
+ at x
+ cur_tail:=adjust_tail; adjust_tail:=null;
+ at y
+ cur_tail:=adjust_tail; adjust_tail:=null;
+ cur_pre_tail:=pre_adjust_tail; pre_adjust_tail:=null;
+ at z
+
+% [37] \vadjust pre
+ at x
+ pop_nest; append_to_vlist(p);
+ if cur_head<>cur_tail then
+ begin link(tail):=link(cur_head); tail:=cur_tail;
+ end;
+ at y
+ pop_nest;
+ if cur_pre_head <> cur_pre_tail then
+ append_list(cur_pre_head)(cur_pre_tail);
+ append_to_vlist(p);
+ if cur_head <> cur_tail then
+ append_list(cur_head)(cur_tail);
+ at z
+
+% [39] \vadjust pre
+ at x
+@ @<Append the new box to the current vertical list...@>=
+append_to_vlist(just_box);
+if adjust_head<>adjust_tail then
+ begin link(tail):=link(adjust_head); tail:=adjust_tail;
+ end;
+adjust_tail:=null
+ at y
+@ @<Append the new box to the current vertical list...@>=
+if pre_adjust_head <> pre_adjust_tail then
+ append_list(pre_adjust_head)(pre_adjust_tail);
+pre_adjust_tail := null;
+append_to_vlist(just_box);
+if adjust_head <> adjust_tail then
+ append_list(adjust_head)(adjust_tail);
+adjust_tail := null
+ at z
+
+% [39] \vadjust pre
+ at x
+adjust_tail:=adjust_head; just_box:=hpack(q,cur_width,exactly);
+ at y
+adjust_tail:=adjust_head;
+pre_adjust_tail := pre_adjust_head;
+just_box:=hpack(q,cur_width,exactly);
+ at z
+
+ at x \[if]pdfprimitive: main_loop
+any_mode(ignore_spaces): begin @<Get the next non-blank non-call...@>;
+ goto reswitch;
+ end;
+ at y
+any_mode(ignore_spaces): begin
+ if cur_chr = 0 then begin
+ @<Get the next non-blank non-call...@>;
+ goto reswitch;
+ end
+ else begin
+ t:=scanner_status;
+ scanner_status:=normal;
+ get_next;
+ scanner_status:=t;
+ if cur_cs < hash_base then
+ cur_cs := prim_lookup(cur_cs-single_base)
+ else
+ cur_cs := prim_lookup(text(cur_cs));
+ if cur_cs<>undefined_primitive then begin
+ cur_cmd := prim_eq_type(cur_cs);
+ cur_chr := prim_equiv(cur_cs);
+ cur_tok := cs_token_flag+prim_eqtb_base+cur_cs;
+ goto reswitch;
+ end;
+ end;
+ end;
+ at z
+
+% [47] \vadjust pre
+ at x
+ if abs(mode)=vmode then
+ begin append_to_vlist(cur_box);
+ if adjust_tail<>null then
+ begin if adjust_head<>adjust_tail then
+ begin link(tail):=link(adjust_head); tail:=adjust_tail;
+ end;
+ adjust_tail:=null;
+ end;
+ if mode>0 then build_page;
+ end
+ at y
+ if abs(mode)=vmode then
+ begin
+ if pre_adjust_tail <> null then begin
+ if pre_adjust_head <> pre_adjust_tail then
+ append_list(pre_adjust_head)(pre_adjust_tail);
+ pre_adjust_tail := null;
+ end;
+ append_to_vlist(cur_box);
+ if adjust_tail <> null then begin
+ if adjust_head <> adjust_tail then
+ append_list(adjust_head)(adjust_tail);
+ adjust_tail := null;
+ end;
+ if mode>0 then build_page;
+ end
+ at z
+
+% [47] \vadjust pre + pTeX
+ at x
+adjusted_hbox_group: begin adjust_hlist(head,false);
+ adjust_tail:=adjust_head; package(0);
+ at y
+adjusted_hbox_group: begin adjust_hlist(head,false);
+ adjust_tail:=adjust_head;
+ pre_adjust_tail:=pre_adjust_head; package(0);
+ at z
+
+% [47] \vadjust pre
+ at x
+saved(0):=cur_val; incr(save_ptr);
+ at y
+saved(0) := cur_val;
+if (cur_cmd = vadjust) and scan_keyword("pre") then
+ saved(1) := 1
+else
+ saved(1) := 0;
+save_ptr := save_ptr + 2;
+ at z
+
+% [47] \vadjust pre
+ at x
+ d:=split_max_depth; f:=floating_penalty; unsave; decr(save_ptr);
+ at y
+ d:=split_max_depth; f:=floating_penalty; unsave; save_ptr := save_ptr - 2;
+ at z
+
+% [47] \vadjust pre + pTeX
+ at x
+ r:=get_node(small_node_size); type(r):=adjust_node;@/
+ subtype(r):=0; {the |subtype| is not used}
+ adjust_ptr(r):=list_ptr(p); delete_glue_ref(q);
+ at y
+ r:=get_node(small_node_size); type(r):=adjust_node;@/
+ adjust_pre(r) := saved(1); {the |subtype| is used for |adjust_pre|}
+ adjust_ptr(r):=list_ptr(p); delete_glue_ref(q);
+ at z
+
+% [48] \vadjust pre
+ at x
+@!t:pointer; {tail of adjustment list}
+ at y
+@!t:pointer; {tail of adjustment list}
+@!pre_t:pointer; {tail of pre-adjustment list}
+ at z
+
+% [48] \vadjust pre
+ at x
+adjust_tail:=adjust_head; b:=hpack(p,natural); p:=list_ptr(b);
+t:=adjust_tail; adjust_tail:=null;@/
+ at y
+adjust_tail:=adjust_head; pre_adjust_tail:=pre_adjust_head;
+b:=hpack(p,natural); p:=list_ptr(b);
+t:=adjust_tail; adjust_tail:=null;@/
+pre_t:=pre_adjust_tail; pre_adjust_tail:=null;@/
+ at z
+
+% [48] \vadjust pre
+ at x
+if t<>adjust_head then {migrating material comes after equation number}
+ begin link(tail):=link(adjust_head); tail:=t;
+ end;
+ at y
+if t<>adjust_head then {migrating material comes after equation number}
+ begin link(tail):=link(adjust_head); tail:=t;
+ end;
+if pre_t<>pre_adjust_head then
+ begin link(tail):=link(pre_adjust_head); tail:=pre_t;
+ end;
+ at z
+
+ at x \[if]pdfprimitive: dump prim table
+@<Dump the hash table@>=
+ at y
+@<Dump the hash table@>=
+for p:=0 to prim_size do dump_hh(prim[p]);
+ at z
+
+ at x \[if]pdfprimitive: undump prim table
+@ @<Undump the hash table@>=
+ at y
+@ @<Undump the hash table@>=
+for p:=0 to prim_size do undump_hh(prim[p]);
+ at z
+
+ at x
+fix_date_and_time;@/
+ at y
+fix_date_and_time;@/
+isprint_utf8:=false;
+random_seed:=(microseconds*1000)+(epochseconds mod 1000000);@/
+init_randoms(random_seed);@/
+ at z
+
+ at x
+ at d language_node=4 {|subtype| in whatsits that change the current language}
+ at y
+ at d latespecial_node=4 {|subtype| in whatsits that represent \.{\\special} things}
+ at d language_node=5 {|subtype| in whatsits that change the current language}
+ at z
+
+ at x
+ at d immediate_code=4 {command modifier for \.{\\immediate}}
+ at d set_language_code=5 {command modifier for \.{\\setlanguage}}
+ at d epTeX_input_encoding_code=6 {command modifier for \.{\\epTeXinputencoding}}
+ at y
+ at d immediate_code=5 {command modifier for \.{\\immediate}}
+ at d set_language_code=6 {command modifier for \.{\\setlanguage}}
+ at d epTeX_input_encoding_code=7 {command modifier for \.{\\epTeXinputencoding}}
+ at d pdf_save_pos_node=epTeX_input_encoding_code+1
+ at d set_random_seed_code=pdf_save_pos_node+1
+ at d reset_timer_code=set_random_seed_code+1
+ at z
+
+ at x
+ set_language_code:print_esc("setlanguage");
+ at y
+ set_language_code:print_esc("setlanguage");
+ pdf_save_pos_node: print_esc("pdfsavepos");
+ set_random_seed_code: print_esc("pdfsetrandomseed");
+ reset_timer_code: print_esc("pdfresettimer");
+ at z
+
+ at x
+set_language_code:@<Implement \.{\\setlanguage}@>;
+ at y
+set_language_code:@<Implement \.{\\setlanguage}@>;
+pdf_save_pos_node: @<Implement \.{\\pdfsavepos}@>;
+set_random_seed_code: @<Implement \.{\\pdfsetrandomseed}@>;
+reset_timer_code: @<Implement \.{\\pdfresettimer}@>;
+ at z
+
+ at x
+@<Implement \.{\\special}@>=
+begin new_whatsit(special_node,write_node_size); write_stream(tail):=null;
+p:=scan_toks(false,true); write_tokens(tail):=def_ref;
+inhibit_glue_flag:=false;
+end
+ at y
+@<Implement \.{\\special}@>=
+begin if scan_keyword("shipout") then
+begin new_whatsit(latespecial_node,write_node_size); write_stream(tail):=null;
+p:=scan_toks(false,false); write_tokens(tail):=def_ref;
+end else
+begin new_whatsit(special_node,write_node_size); write_stream(tail):=null;
+p:=scan_toks(false,true); write_tokens(tail):=def_ref;
+end;
+inhibit_glue_flag:=false;
+end
+ at z
+
+ at x
+special_node:begin print_esc("special");
+ print_mark(write_tokens(p));
+ end;
+ at y
+special_node:begin print_esc("special");
+ print_mark(write_tokens(p));
+ end;
+latespecial_node:begin print_esc("special"); print(" shipout");
+ print_mark(write_tokens(p));
+ end;
+ at z
+
+ at x \pdfsavepos
+ print_int(what_lhm(p)); print_char(",");
+ print_int(what_rhm(p)); print_char(")");
+ end;
+ at y
+ print_int(what_lhm(p)); print_char(",");
+ print_int(what_rhm(p)); print_char(")");
+ end;
+pdf_save_pos_node: print_esc("pdfsavepos");
+set_random_seed_code: print_esc("pdfsetrandomseed");
+reset_timer_code: print_esc("pdfresettimer");
+ at z
+
+ at x
+write_node,special_node: begin r:=get_node(write_node_size);
+ at y
+write_node,special_node,latespecial_node: begin r:=get_node(write_node_size);
+ at z
+
+ at x \pdfsavepos
+close_node,language_node: begin r:=get_node(small_node_size);
+ words:=small_node_size;
+ end;
+ at y
+close_node,language_node: begin r:=get_node(small_node_size);
+ words:=small_node_size;
+ end;
+pdf_save_pos_node:
+ r := get_node(small_node_size);
+ at z
+
+ at x
+write_node,special_node: begin delete_token_ref(write_tokens(p));
+ at y
+write_node,special_node,latespecial_node: begin delete_token_ref(write_tokens(p));
+ at z
+
+ at x \pdfsavepos
+close_node,language_node: free_node(p,small_node_size);
+ at y
+close_node,language_node: free_node(p,small_node_size);
+pdf_save_pos_node: free_node(p, small_node_size);
+ at z
+
+ at x
+procedure special_out(@!p:pointer);
+var old_setting:0..max_selector; {holds print |selector|}
+@!k:pool_pointer; {index into |str_pool|}
+begin synch_h; synch_v;@/
+old_setting:=selector; selector:=new_string;
+show_token_list(link(write_tokens(p)),null,pool_size-pool_ptr);
+ at y
+procedure special_out(@!p:pointer);
+label done;
+var old_setting:0..max_selector; {holds print |selector|}
+@!h:halfword;
+@!k:pool_pointer; {index into |str_pool|}
+@!q,@!r:pointer; {temporary variables for list manipulation}
+@!old_mode:integer; {saved |mode|}
+@!s,@!t,@!cw, @!num, @!denom: scaled;
+@!bl: boolean;
+@!i: small_number;
+begin synch_h; synch_v;@/
+old_setting:=selector;
+if subtype(p)=latespecial_node then
+ begin @<Expand macros in the token list
+ and make |link(def_ref)| point to the result@>;
+ h:=def_ref;
+ end
+else h:=write_tokens(p);
+selector:=new_string;
+show_token_list(link(h),null,pool_size-pool_ptr);
+ at z
+
+ at x
+pool_ptr:=str_start[str_ptr]; {erase the string}
+ at y
+if read_papersize_special>0 then
+ @<Determine whether this \.{\\special} is a papersize special@>;
+done: pool_ptr:=str_start[str_ptr]; {erase the string}
+if subtype(p)=latespecial_node then
+ flush_list(def_ref);
+ at z
+
+ at x
+special_node:special_out(p);
+language_node:do_nothing;
+ at y
+special_node,latespecial_node:special_out(p);
+language_node:do_nothing;
+pdf_save_pos_node:
+ @<Save current position in DVI mode@>;
+ at z
+
+ at x
+primitive("eTeXrevision",convert,eTeX_revision_code);@/
+@!@:eTeX_revision_}{\.{\\eTeXrevision} primitive@>
+ at y
+primitive("eTeXrevision",convert,eTeX_revision_code);@/
+@!@:eTeX_revision_}{\.{\\eTeXrevision} primitive@>
+primitive("pdfprimitive",no_expand,1);@/
+@!@:pdfprimitive_}{\.{\\pdfprimitive} primitive@>
+primitive("pdfstrcmp",convert,pdf_strcmp_code);@/
+@!@:pdf_strcmp_}{\.{\\pdfstrcmp} primitive@>
+primitive("pdfcreationdate",convert,pdf_creation_date_code);@/
+@!@:pdf_creation_date_}{\.{\\pdfcreationdate} primitive@>
+primitive("pdffilemoddate",convert,pdf_file_mod_date_code);@/
+@!@:pdf_file_mod_date_}{\.{\\pdffilemoddate} primitive@>
+primitive("pdffilesize",convert,pdf_file_size_code);@/
+@!@:pdf_file_size_}{\.{\\pdffilesize} primitive@>
+primitive("pdfmdfivesum",convert,pdf_mdfive_sum_code);@/
+@!@:pdf_mdfive_sum_}{\.{\\pdfmdfivesum} primitive@>
+primitive("pdffiledump",convert,pdf_file_dump_code);@/
+@!@:pdf_file_dump_}{\.{\\pdffiledump} primitive@>
+primitive("pdfsavepos",extension,pdf_save_pos_node);@/
+@!@:pdf_save_pos_}{\.{\\pdfsavepos} primitive@>
+primitive("pdfpagewidth",assign_dimen,dimen_base+pdf_page_width_code);@/
+@!@:pdf_page_width_}{\.{\\pdfpagewidth} primitive@>
+primitive("pdfpageheight",assign_dimen,dimen_base+pdf_page_height_code);@/
+@!@:pdf_page_height_}{\.{\\pdfpageheight} primitive@>
+primitive("pdflastxpos",last_item,pdf_last_x_pos_code);@/
+@!@:pdf_last_x_pos_}{\.{\\pdflastxpos} primitive@>
+primitive("pdflastypos",last_item,pdf_last_y_pos_code);@/
+@!@:pdf_last_y_pos_}{\.{\\pdflastypos} primitive@>
+primitive("pdfshellescape",last_item,pdf_shell_escape_code);
+@!@:pdf_shell_escape_}{\.{\\pdfshellescape} primitive@>
+primitive("ifpdfprimitive",if_test,if_pdfprimitive_code);
+@!@:if_pdfprimitive_}{\.{\\ifpdfprimitive} primitive@>
+primitive("pdfuniformdeviate",convert,uniform_deviate_code);@/
+@!@:uniform_deviate_}{\.{\\pdfuniformdeviate} primitive@>
+primitive("pdfnormaldeviate",convert,normal_deviate_code);@/
+@!@:normal_deviate_}{\.{\\pdfnormaldeviate} primitive@>
+primitive("pdfrandomseed",last_item,random_seed_code);
+@!@:random_seed_}{\.{\\pdfrandomseed} primitive@>
+primitive("pdfsetrandomseed",extension,set_random_seed_code);@/
+@!@:set_random_seed_code}{\.{\\pdfsetrandomseed} primitive@>
+primitive("pdfelapsedtime",last_item,elapsed_time_code);
+@!@:elapsed_time_}{\.{\\pdfelapsedtime} primitive@>
+primitive("pdfresettimer",extension,reset_timer_code);@/
+@!@:reset_timer_}{\.{\\pdfresettimer} primitive@>
+primitive("Uchar",convert,Uchar_convert_code);@/
+@!@:Uchar_}{\.{\\Uchar} primitive@>
+primitive("Ucharcat",convert,Ucharcat_convert_code);@/
+@!@:Ucharcat_}{\.{\\Ucharcat} primitive@>
+ at z
+
+ at x
+eTeX_version_code: print_esc("eTeXversion");
+ at y
+eTeX_version_code: print_esc("eTeXversion");
+pdf_last_x_pos_code: print_esc("pdflastxpos");
+pdf_last_y_pos_code: print_esc("pdflastypos");
+elapsed_time_code: print_esc("pdfelapsedtime");
+pdf_shell_escape_code: print_esc("pdfshellescape");
+random_seed_code: print_esc("pdfrandomseed");
+ at z
+
+ at x
+eTeX_version_code: cur_val:=eTeX_version;
+ at y
+eTeX_version_code: cur_val:=eTeX_version;
+pdf_last_x_pos_code: cur_val := pdf_last_x_pos;
+pdf_last_y_pos_code: cur_val := pdf_last_y_pos;
+pdf_shell_escape_code:
+ begin
+ if shellenabledp then begin
+ if restrictedshell then cur_val :=2
+ else cur_val := 1;
+ end
+ else cur_val := 0;
+ end;
+elapsed_time_code: cur_val := get_microinterval;
+random_seed_code: cur_val := random_seed;
+ at z
+
+ at x
+primitive("iffontchar",if_test,if_font_char_code);
+@!@:if_font_char_}{\.{\\iffontchar} primitive@>
+ at y
+primitive("iffontchar",if_test,if_font_char_code);
+@!@:if_font_char_}{\.{\\iffontchar} primitive@>
+primitive("ifincsname",if_test,if_in_csname_code);
+@!@:if_in_csname_}{\.{\\ifincsname} primitive@>
+ at z
+
+ at x
+if_font_char_code:print_esc("iffontchar");
+ at y
+if_font_char_code:print_esc("iffontchar");
+if_in_csname_code:print_esc("ifincsname");
+ at z
+
+ at x
+if_cs_code:begin n:=get_avail; p:=n; {head of the list of characters}
+ repeat get_x_token;
+ at y
+if_cs_code:begin n:=get_avail; p:=n; {head of the list of characters}
+ e := is_in_csname; is_in_csname := true;
+ repeat get_x_token;
+ at z
+
+ at x
+ b:=(eq_type(cur_cs)<>undefined_cs);
+ at y
+ b:=(eq_type(cur_cs)<>undefined_cs);
+ is_in_csname := e;
+ at z
+
+ at x
+if_font_char_code:begin scan_font_ident; n:=cur_val;
+ at y
+if_in_csname_code: b := is_in_csname;
+if_font_char_code:begin scan_font_ident; n:=cur_val;
+ at z
+
+ at x
+procedure print_kanji(@!s:KANJI_code); {prints a single character}
+begin
+if s>@"FF then
+ begin print_char(@"100+Hi(s)); print_char(@"100+Lo(s));
+ end else print_char(s);
+end;
+ at y
+procedure print_kanji(@!s:integer); {prints a single character}
+begin
+if s>@"FF then begin
+ if isprint_utf8 then begin
+ s:=UCStoUTF8(toUCS(s));
+ if BYTE1(s)<>0 then print_char(@"100+BYTE1(s));
+ if BYTE2(s)<>0 then print_char(@"100+BYTE2(s));
+ if BYTE3(s)<>0 then print_char(@"100+BYTE3(s));
+ print_char(@"100+BYTE4(s));
+ end
+ else begin print_char(@"100+Hi(s)); print_char(@"100+Lo(s)); end;
+end
+else print_char(s);
+end;
+
+
+ at z
+
+ at x
+@* \[54] System-dependent changes.
+ at y
+@* \[54/pdf\TeX] System-dependent changes for {\tt\char"5Cpdfstrcmp}.
+ at d call_func(#) == begin if # <> 0 then do_nothing end
+ at d flushable(#) == (# = str_ptr - 1)
+
+@<Glob...@>=
+@!isprint_utf8: boolean;
+@!epochseconds: integer;
+@!microseconds: integer;
+
+@
+ at d max_integer == @"7FFFFFFF {$2^{31}-1$}
+
+@<Declare procedures that need to be declared forward for \pdfTeX@>=
+procedure pdf_error(t, p: str_number);
+begin
+ normalize_selector;
+ print_err("pdfTeX error");
+ if t <> 0 then begin
+ print(" (");
+ print(t);
+ print(")");
+ end;
+ print(": "); print(p);
+ succumb;
+end;
+
+function get_microinterval:integer;
+var s,@!m:integer; {seconds and microseconds}
+begin
+ seconds_and_micros(s,m);
+ if (s-epochseconds)>32767 then
+ get_microinterval := max_integer
+ else if (microseconds>m) then
+ get_microinterval := ((s-1-epochseconds)*65536)+ (((m+1000000-microseconds)/100)*65536)/10000
+ else
+ get_microinterval := ((s-epochseconds)*65536) + (((m-microseconds)/100)*65536)/10000;
+end;
+
+@ @<Declare procedures needed in |do_ext...@>=
+
+procedure compare_strings; {to implement \.{\\pdfstrcmp}}
+label done;
+var s1, s2: str_number;
+ i1, i2, j1, j2: pool_pointer;
+ c1, c2: integer;
+ save_cur_cs: pointer;
+begin
+ save_cur_cs:=cur_cs; call_func(scan_toks(false, true));
+ isprint_utf8:=true; s1 := tokens_to_string(def_ref); isprint_utf8:=false;
+ delete_token_ref(def_ref);
+ cur_cs:=save_cur_cs; call_func(scan_toks(false, true));
+ isprint_utf8:=true; s2 := tokens_to_string(def_ref); isprint_utf8:=false;
+ delete_token_ref(def_ref);
+ i1 := str_start[s1];
+ j1 := str_start[s1 + 1];
+ i2 := str_start[s2];
+ j2 := str_start[s2 + 1];
+ while (i1 < j1) and (i2 < j2) do begin
+ if str_pool[i1]>=@"100 then c1:=str_pool[i1]-@"100 else c1:=str_pool[i1];
+ if str_pool[i2]>=@"100 then c2:=str_pool[i2]-@"100 else c2:=str_pool[i2];
+ if c1<c2 then begin cur_val := -1; goto done; end
+ else if c1>c2 then begin cur_val := 1; goto done; end;
+ incr(i1);
+ incr(i2);
+ end;
+ if (i1 = j1) and (i2 = j2) then
+ cur_val := 0
+ else if i1 < j1 then
+ cur_val := 1
+ else
+ cur_val := -1;
+done:
+ flush_str(s2);
+ flush_str(s1);
+ cur_val_level := int_val;
+end;
+
+@ Next, we implement \.{\\pdfsavepos} and related primitives.
+
+@<Glob...@>=
+@!cur_page_width: scaled; {"physical" width of page being shipped}
+@!cur_page_height: scaled; {"physical" height of page being shipped}
+@!pdf_last_x_pos: integer;
+@!pdf_last_y_pos: integer;
+
+@ @<Implement \.{\\pdfsavepos}@>=
+begin
+ new_whatsit(pdf_save_pos_node, small_node_size);
+ inhibit_glue_flag:=false;
+end
+
+@ @<Save current position in DVI mode@>=
+begin
+ case dvi_dir of
+ dir_yoko: begin pdf_last_x_pos := cur_h; pdf_last_y_pos := cur_v; end;
+ dir_tate: begin pdf_last_x_pos := -cur_v; pdf_last_y_pos := cur_h; end;
+ dir_dtou: begin pdf_last_x_pos := cur_v; pdf_last_y_pos := -cur_h; end;
+ endcases;
+ pdf_last_x_pos := pdf_last_x_pos + 4736286;
+ pdf_last_y_pos := cur_page_height - pdf_last_y_pos - 4736286;
+ {4736286 = 1in, the funny DVI origin offset}
+end
+
+@ @<Calculate DVI page dimensions and margins@>=
+ if pdf_page_height <> 0 then
+ cur_page_height := pdf_page_height
+ else if (box_dir(p)=dir_tate)or(box_dir(p)=dir_dtou) then
+ cur_page_height := width(p) + 2*v_offset + 2*4736286
+ else
+ cur_page_height := height(p) + depth(p) + 2*v_offset + 2*4736286;
+ {4736286 = 1in, the funny DVI origin offset}
+ if pdf_page_width <> 0 then
+ cur_page_width := pdf_page_width
+ else if (box_dir(p)=dir_tate)or(box_dir(p)=dir_dtou) then
+ cur_page_width := height(p) + depth(p) + 2*h_offset + 2*4736286
+ else
+ cur_page_width := width(p) + 2*h_offset + 2*4736286
+ {4736286 = 1in, the funny DVI origin offset}
+
+
+@ Of course \epTeX\ can produce a \.{DVI} file only, not a PDF file.
+A \.{DVI} file does not have the information of the page height,
+which is needed to implement \.{\\pdflastypos} correctly.
+To keep the information of the page height, I (H.~Kitagawa)
+adopted \.{\\pdfpageheight} primitive from pdf\TeX.
+
+In \pTeX (and \hbox{\epTeX}), the papersize special
+\.{\\special\{papersize=\<width>,\<height>\}} is commonly used
+for specifying page width/height.
+If \.{\\readpapersizespecial} is greater than~0, the papersize special also
+changes the value of \.{\\pdfpagewidth} and \.{\\pdfpageheight}.
+This process is done in the following routine.
+
+{\def\<#1>{\langle\hbox{#1\/}\rangle}
+In present implementation, the papersize special $\<special>$,
+which can be interpreted by this routine, is defined as follows.
+$$\eqalign{%
+ \<special> &\longrightarrow \.{papersize=}\<length>\.{,}\<length>\cr
+ \<length> &\longrightarrow \<decimal>
+ \<optional~\.{true}>\<physical unit>\cr
+ \<decimal> &\longrightarrow \.{.} \mid \<digit>\<decimal> \mid
+ \<decimal>\<digit>\cr
+}$$}
+Note that any space, ``\.{,}'' as a decimal separator, minus~symbol
+are neither permitted.
+
+ at d ifps(#)==@+if k+(#)>pool_ptr then goto done @+ else @+ if
+ at d sop(#)==so(str_pool[#])
+ at f ifps==if
+
+@<Determine whether this \.{\\special} is a papersize special@>=
+begin k:=str_start[str_ptr];@/
+ifps(10) @,
+ (sop(k+0)<>'p')or(sop(k+1)<>'a')or(sop(k+2)<>'p')or
+ (sop(k+3)<>'e')@|or(sop(k+4)<>'r')or(sop(k+5)<>'s')or
+ (sop(k+6)<>'i')or(sop(k+7)<>'z')@|or(sop(k+8)<>'e')or
+ (sop(k+9)<>'=') then goto done;
+k:=k+10;
+@<Read dimensions in the argument in the papersize special@>;
+ifps(1) @, sop(k)=',' then begin
+ incr(k); cw:=s;
+ @<Read dimensions in the argument in the papersize special@>;
+ if pool_ptr>k then goto done;
+ geq_word_define(dimen_base+pdf_page_width_code,cw);
+ geq_word_define(dimen_base+pdf_page_height_code,s);@|
+ cur_page_height := s; cur_page_width := cw;
+end;
+end;
+
+@
+
+ at d if_ps_unit(#)==if bl then @+ begin @+ ifps(2) sop(k)=(#) @, if_ps_unit_two
+ at d if_ps_unit_two(#)==and (sop(k+1)=(#)) then begin bl:=false; k:=k+2; if_ps_unit_end
+ at d if_ps_unit_end(#)==# @+ end @+ end;
+
+ at d do_ps_conversion(#)==num:=#; do_ps_conversion_end
+ at d do_ps_conversion_end(#)==
+ s:=xn_over_d(s,num,#); s:=s*unity+((num*t+@'200000*remainder) div #)
+
+@<Read dimensions in the argument in the papersize special@>=
+s:=0; t:=0; bl:=true;
+while (k<pool_ptr)and bl do
+ if (sop(k)>='0')and (sop(k)<='9') then begin s:=10*s+sop(k)-'0'; incr(k); @+end
+ else bl:=false;
+ifps(1) sop(k)='.' then
+ begin incr(k); bl:=true; i:=0; dig[0]:=0;
+ while (k<pool_ptr)and bl do begin
+ if (sop(k)>='0')and (sop(k)<='9') then
+ begin if i<17 then begin dig[i]:=sop(k)-'0'; incr(i); @+end;
+ incr(k); end
+ else bl:=false;
+ end;
+ t:=round_decimals(i);
+ end;
+if k+4>pool_ptr then
+ if (sop(k)='t')and(sop(k+1)='r')and(sop(k+2)='u')and(sop(k+3)='e') then
+ k:=k+4;
+if mag<>1000 then
+ begin s:=xn_over_d(s,1000,mag);
+ t:=(1000*t+@'200000*remainder) div mag;
+ s:=s+(t div @'200000); t:=t mod @'200000;
+end;
+bl:=true;@/
+if_ps_unit('p')('t')(s:=s*unity+t)@/
+if_ps_unit('i')('n')(do_ps_conversion(7227)(100))@/
+if_ps_unit('p')('c')(do_ps_conversion(12)(1))@/
+if_ps_unit('c')('m')(do_ps_conversion(7227)(254))@/
+if_ps_unit('m')('m')(do_ps_conversion(7227)(2540))@/
+if_ps_unit('b')('p')(do_ps_conversion(7227)(7200))@/
+if_ps_unit('d')('d')(do_ps_conversion(1238)(1157))@/
+if_ps_unit('c')('c')(do_ps_conversion(14856)(1157))@/
+if_ps_unit('s')('p')(do_nothing)
+
+@ Finally, we declare some routine needed for \.{\\pdffilemoddate}.
+
+@<Glob...@>=
+@!isprint_utf8: boolean;
+@!last_tokens_string: str_number; {the number of the most recently string
+created by |tokens_to_string|}
+
+@ @<Declare procedures needed in |do_ext...@>=
+procedure scan_pdf_ext_toks;
+begin
+ call_func(scan_toks(false, true)); {like \.{\\special}}
+end;
+
+@ @<Declare procedures that need to be declared forward for \pdfTeX@>=
+function tokens_to_string(p: pointer): str_number; {return a string from tokens
+list}
+begin
+ if selector = new_string then
+ pdf_error("tokens", "tokens_to_string() called while selector = new_string");
+ old_setting:=selector; selector:=new_string;
+ show_token_list(link(p),null,pool_size-pool_ptr);
+ selector:=old_setting;
+ last_tokens_string := make_string;
+ tokens_to_string := last_tokens_string;
+end;
+procedure flush_str(s: str_number); {flush a string if possible}
+begin
+ if flushable(s) then
+ flush_string;
+end;
+
+@ @<Set initial values of key variables@>=
+ seconds_and_micros(epochseconds,microseconds);
+ init_start_time;
+
+@ Negative random seed values are silently converted to positive ones
+
+@<Implement \.{\\pdfsetrandomseed}@>=
+begin
+ scan_int;
+ if cur_val<0 then negate(cur_val);
+ random_seed := cur_val;
+ init_randoms(random_seed);
+end
+
+@ @<Implement \.{\\pdfresettimer}@>=
+begin
+ seconds_and_micros(epochseconds,microseconds);
+end
+
+@* \[54] System-dependent changes.
+ at z
Copied: trunk/Build/source/texk/web2c/euptexdir/suppresserrors.ch (from rev 69765, trunk/Build/source/texk/web2c/eptexdir/suppresserrors.ch)
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/suppresserrors.ch (rev 0)
+++ trunk/Build/source/texk/web2c/euptexdir/suppresserrors.ch 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,138 @@
+%% suppresserrors.ch: support ``suppressing errors'' primitives in LuaTeX
+%%
+%% \suppresslongerror done
+%% \suppressoutererror done
+%% \suppressmathparerror done
+%% The followings are not implemented to e-(u)pTeX:
+%% % \suppressifcsnameerror
+%% % \suppressfontnotfounderror -> we have an error from mktextfm etc. anyway
+%% % \suppressprimitiveerror -> e-(u)pTeX does not produce errors in \pdfprimitive
+
+ at x
+ at d eTeX_state_code=etex_int_base+10 {\eTeX\ state variables}
+ at y
+ at d suppress_long_error_code=etex_int_base+10
+ at d suppress_outer_error_code=etex_int_base+11
+ at d suppress_mathpar_error_code=etex_int_base+12
+ at d eTeX_state_code=etex_int_base+13 {\eTeX\ state variables}
+ at z
+
+ at x
+ at d read_papersize_special==int_par(read_papersize_special_code)
+ at y
+ at d read_papersize_special==int_par(read_papersize_special_code)
+ at d suppress_long_error==int_par(suppress_long_error_code)
+ at d suppress_outer_error==int_par(suppress_outer_error_code)
+ at d suppress_mathpar_error==int_par(suppress_mathpar_error_code)
+ at z
+
+ at x {Perhaps this change hunk is not needed}
+ at p procedure check_outer_validity;
+var p:pointer; {points to inserted token list}
+@!q:pointer; {auxiliary pointer}
+begin if scanner_status<>normal then
+ at y
+ at p procedure check_outer_validity;
+var p:pointer; {points to inserted token list}
+@!q:pointer; {auxiliary pointer}
+begin if suppress_outer_error=0 then if scanner_status<>normal then
+ at z
+
+ at x @<Finish line, emit a \.{\\par}@>
+if cur_cmd>=outer_call then check_outer_validity;
+ at y
+if (suppress_outer_error=0)and(cur_cmd>=outer_call) then check_outer_validity;
+ at z
+
+ at x @<Process an active-character...@>
+if cur_cmd>=outer_call then check_outer_validity;
+ at y
+if (suppress_outer_error=0)and(cur_cmd>=outer_call) then check_outer_validity;
+ at z
+
+ at x @<Scan a control...@>
+if cur_cmd>=outer_call then check_outer_validity;
+ at y
+if (suppress_outer_error=0)and(cur_cmd>=outer_call) then check_outer_validity;
+ at z
+
+ at x @<Input from token list, |goto restart| ...@>
+ if cur_cmd=dont_expand then
+ @<Get the next token, suppressing expansion@>
+ else check_outer_validity;
+ at y
+ if cur_cmd=dont_expand then
+ @<Get the next token, suppressing expansion@>
+ else if suppress_outer_error=0 then check_outer_validity;
+ at z
+
+ at x @<Read next line of file into |buffer|, ...>
+ end_file_reading; {resume previous level}
+ check_outer_validity; goto restart;
+ at y
+ end_file_reading; {resume previous level}
+ if suppress_outer_error=0 then check_outer_validity; goto restart;
+ at z
+
+ at x
+if cur_tok=par_token then if long_state<>long_call then
+ @<Report a runaway argument and abort@>;
+ at y
+if cur_tok=par_token then if long_state<>long_call then
+ if suppress_long_error=0 then @<Report a runaway argument and abort@>;
+ at z
+
+ at x
+ if cur_tok=par_token then if long_state<>long_call then
+ @<Report a runaway argument and abort@>;
+ at y
+ if cur_tok=par_token then if long_state<>long_call then
+ if suppress_long_error=0 then @<Report a runaway argument and abort@>;
+ at z
+
+ at x
+@<Math-only cases in non-math modes, or vice versa@>: insert_dollar_sign;
+ at y
+@<Math-only cases in non-math modes, or vice versa@>: insert_dollar_sign;
+mmode+par_end: if suppress_mathpar_error=0 then insert_dollar_sign;
+ at z
+
+ at x
+mmode+endv, mmode+par_end, mmode+stop, mmode+vskip, mmode+un_vbox,
+mmode+valign, mmode+hrule
+ at y
+mmode+endv, mmode+stop, mmode+vskip, mmode+un_vbox,
+mmode+valign, mmode+hrule
+ at z
+
+ at x after_math
+@<Check that another \.\$ follows@>=
+begin get_x_token;
+ at y
+@<Check that another \.\$ follows@>=
+begin repeat get_x_token;
+until (suppress_mathpar_error=0)or(cur_cmd<>par_end);
+ at z
+
+ at x
+primitive("readpapersizespecial",assign_int,int_base+read_papersize_special_code);@/
+@!@:read_papersize_special_}{\.{\\readpapersizespecial} primitive@>
+ at y
+primitive("readpapersizespecial",assign_int,int_base+read_papersize_special_code);@/
+@!@:read_papersize_special_}{\.{\\readpapersizespecial} primitive@>
+primitive("suppresslongerror",assign_int,int_base+suppress_long_error_code);@/
+@!@:suppress_long_error_}{\.{\\suppresslongerror} primitive@>
+primitive("suppressoutererror",assign_int,int_base+suppress_outer_error_code);@/
+@!@:suppress_outer_error_}{\.{\\suppressoutererror} primitive@>
+primitive("suppressmathparerror",assign_int,int_base+suppress_mathpar_error_code);@/
+@!@:suppress_mathpar_error_}{\.{\\suppressmathparerror} primitive@>
+ at z
+
+ at x
+read_papersize_special_code:print_esc("readpapersizespecial");
+ at y
+read_papersize_special_code:print_esc("readpapersizespecial");
+suppress_long_error_code: print_esc("suppresslongerror");
+suppress_outer_error_code: print_esc("suppressoutererror");
+suppress_mathpar_error_code: print_esc("suppressmathparerror");
+ at z
Copied: trunk/Build/source/texk/web2c/euptexdir/tests/pdfprimitive-test.tex (from rev 69765, trunk/Build/source/texk/web2c/eptexdir/tests/pdfprimitive-test.tex)
===================================================================
--- trunk/Build/source/texk/web2c/euptexdir/tests/pdfprimitive-test.tex (rev 0)
+++ trunk/Build/source/texk/web2c/euptexdir/tests/pdfprimitive-test.tex 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,47 @@
+%#!euptex pdfprimitive-test.tex
+\catcode`\{=1\catcode`\}=2
+\scrollmode
+\catcode`\Q=14
+\ifdefined\pdfprimitive\else\catcode`\Q=11 \fi
+
+Q\let\pdfprimitive\primitive\let\ifpdfprimitive\ifprimitive
+\catcode`\Q=11
+
+\def\relax{\message{RELAX}}
+\def\fuga{\message{FUGA}}
+\let\input=\halign
+
+\relax % ==> RELAX
+\pdfprimitive\relax % ==> (no output)
+\message{\meaning\relax} % ==> macro:->\message {RELAX}
+
+\fuga % ==> FUGA
+\pdfprimitive\fuga % ==> ``! Missing primitive name.'' error
+
+\ifpdfprimitive\relax\message{T}\else\message{F}\fi % ==> F (macro)
+\ifpdfprimitive\par\message{T}\else\message{F}\fi % ==> T
+\ifpdfprimitive\input\message{T}\else\message{F}\fi % ==> F
+ % (This \input is not ``primitive \input''.)
+\ifpdfprimitive\hoge\message{T}\else\message{F}\fi % ==> F (undefined)
+\ifpdfprimitive\fuga\message{T}\else\message{F}\fi % ==> F (macro)
+
+\show\pdfstrcmp % ==> \pdfstrcmp
+
+% fix for overwriting entries (170924)
+\ifpdfprimitive\ \message{T}\else\message{F}\fi % ==> T
+\ifpdfprimitive\vrule\message{T}\else\message{F}\fi % ==> T
+
+% fix for back_input in vertical mode (170924)
+\setbox0=\vbox{\pdfprimitive\ \undefined}
+% ==> ``! Undefined control sequence.'' error
+\setbox0=\vbox{\pdfprimitive\vrule\undefined}
+% ==> ``! Undefined control sequence.'' error
+
+\setbox0=\hbox{%
+ \def\A{\message{<\the\count42>}\ignorespaces}
+ \count42=\pdfprimitive\X 1\A
+ \count42=\pdfprimitive\- 2\A
+ \count42=\pdfprimitive\vrule 3\A
+}
+
+\end
Modified: trunk/Build/source/texk/web2c/uptexdir/ChangeLog
===================================================================
--- trunk/Build/source/texk/web2c/uptexdir/ChangeLog 2024-02-10 08:13:48 UTC (rev 69766)
+++ trunk/Build/source/texk/web2c/uptexdir/ChangeLog 2024-02-10 09:42:44 UTC (rev 69767)
@@ -1,3 +1,10 @@
+2024-02-10 TANAKA Takuji <ttk at t-lab.opal.ne.jp>
+
+ * ptex_version.h, ptex-base.ch, zfmtcompress.test,
+ am/uptex.am: Copy ptex source files from ../ptexdir
+ to cleaning up building environment.
+ https://github.com/texjporg/tex-jp-build/issues/32
+
2023-12-24 TANAKA Takuji <ttk at t-lab.opal.ne.jp>
* wcfname{,0}.test:
Modified: trunk/Build/source/texk/web2c/uptexdir/am/uptex.am
===================================================================
--- trunk/Build/source/texk/web2c/uptexdir/am/uptex.am 2024-02-10 08:13:48 UTC (rev 69766)
+++ trunk/Build/source/texk/web2c/uptexdir/am/uptex.am 2024-02-10 09:42:44 UTC (rev 69767)
@@ -40,7 +40,7 @@
dist_uptex_SOURCES = uptexdir/uptexextra.c uptexdir/uptexextra.h uptexdir/uptex_version.h
# We must create uptexd.h and uptexdir/uptex_version.h before building the uptex_OBJECTS.
-uptex_prereq = uptexd.h ptexdir/ptex_version.h uptexdir/uptex_version.h
+uptex_prereq = uptexd.h uptexdir/ptex_version.h uptexdir/uptex_version.h
$(uptex_OBJECTS): $(uptex_prereq)
$(uptex_c_h): uptex-web2c
@@ -76,7 +76,7 @@
uptex.ch: tie$(EXEEXT) uptex.web $(uptex_ch_srcs)
$(tie_c) uptex.web $(uptex_ch_srcs)
uptex_ch_srcs = \
- ptexdir/ptex-base.ch \
+ uptexdir/ptex-base.ch \
uptexdir/uptex-m.ch \
$(uptex_ch_synctex) \
tex-binpool.ch
@@ -236,7 +236,7 @@
DISTCLEANFILES += uptests/xcmr10.tfm
## uptexdir/uptftopl.test
DISTCLEANFILES += uptests/xcmr10.pl
-## ptexdir/sample.test
+## uptexdir/sample.test
DISTCLEANFILES += uptests/xsample*.typ
## uptexdir/yokotate.test
EXTRA_DIST += uptexdir/tests/umin10.pl uptexdir/tests/umin10.tfm
Copied: trunk/Build/source/texk/web2c/uptexdir/ptex-base.ch (from rev 69765, trunk/Build/source/texk/web2c/ptexdir/ptex-base.ch)
===================================================================
--- trunk/Build/source/texk/web2c/uptexdir/ptex-base.ch (rev 0)
+++ trunk/Build/source/texk/web2c/uptexdir/ptex-base.ch 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,8175 @@
+% $Id$
+% This is a change file for pTeX
+% By Sadayuki Tanaka and ASCII MEDIA WORKS.
+%
+% Thanks for :
+% Ryoichi Kurasawa (us009185 at interramp.com),
+% Hisato Hamano,
+% Hiroto Kagotani (kagotani at in.it.okayama-u.ac.jp),
+% Takashi Kakiuchi (kakiuchi at sy6.isl.mei.co.jp),
+% Yoichi Kawabata (kawabata at canon.co.jp),
+% Makoto Kobayashi (makoto at lloem.fujidenki.co.jp),
+% Yoshihiro Aoki (aoki at tokyo-shoseki-ptg.co.jp),
+% Akira Kakuto (kakuto at fuk.kindai.ac.jp).
+% Koich Inoue (inoue at ma.ns.musashi-tech.ac.jp).
+%
+% (??/??/87) RKS jTeX 2.9 -- j1.0
+% (??/??/89) RKS jTeX 2.93 -- j1.3
+% (12/ 9/89) H_2 pTeX 2.93 j1.3 p1.0.1
+% (12/??/89) RKS jTeX 2.95 -- j1.5
+% (12/??/89) RKS jTeX 2.99 -- j1.5
+% (02/02/90) RKS jTeX 2.99 -- j1.6
+% (04/16/90) H_2 pTeX 2.99 j1.6 p1.0.3
+% (09/14/90) H_2 pTeX 2.99 j1.6 p1.0.9 -- pre-release
+% (10/29/90) H_2 Bug fix (p1.0.9a)
+% (01/21/92) H_2 jTeX 2.99 - j1.7
+% (01/21/92) H_2 pTeX 2.99 j1.7 p1.0.9F
+% (03/09/92) H_2 pTeX 2.99 j1.7 p1.0.9G jflag BUG
+% (03/20/95) KN pTeX p2.0 (based on 3.1415)
+% (09/08/95) KN pTeX p2.1
+% (09/20/95) KN pTeX p2.1.1
+% (11/21/95) KN pTeX p2.1.4
+% (08/27/97) KN pTeX p2.1.5 (based on 3.14159)
+% (02/26/98) KN pTeX p2.1.6
+% (03/19/98) KN pTeX p2.1.7
+% (03/26/98) KN pTeX p2.1.8 (Web2c 7.2)
+% (02/21/2000) KN pTeX p2.1.9 (Web2c 7.3.1)
+% (11/13/2000) KN pTeX p2.1.10
+% (05/22/2001) KN pTeX p2.1.11
+% (03/10/2001) KN pTeX p3.0 (modified BSD licence)
+% (09/02/2004) ST pTeX p3.1.4
+% (11/29/2004) KN pTeX p3.1.5
+% (12/13/2004) KN pTeX p3.1.8
+% (10/17/2005) ST pTeX p3.1.9
+% (07/18/2006) ST pTeX p3.1.10
+% (08/17/2009) ST pTeX p3.1.11
+% (05/23/2010) AK Bug fix by Hironori Kitagawa.
+% (31/12/2010) AK Bug fix and accent Kanji by Hironori Kitagawa.
+% (19/01/2011) PB Let \lastkern etc act through disp node.
+% (15/04/2011) PB pTeX p3.2 Add \ifdbox and \ifddir
+% (2011-08-18) PB Bug fix by Hironori Kitagawa.
+% (2012-05-11) PB pTeX p3.3
+% (2013-04-09) PB pTeX p3.4 (TL 2013)
+% (2014-04-17) KB pTeX p3.5 (TL 2014)
+% (2014-03-15) KB pTeX p3.6 (TL 2015)
+% (2015-09-10) AK pTeX p3.7 Bug fix by Hironori Kitagawa in flushing choice node.
+% (2016-03-04) AK Hironori Kitagawa added new primitives to improve typesetting
+% with non-vanishing \ybaselineshift.
+% (2016-06-06) AK Hironori Kitagawa fixed a bug in check_box(box_p:pointer).
+% pTeX p3.7.1.
+% (2017-09-07) HK pTeX p3.7.2 More restrictions on direction change commands.
+% (2018-01-21) HK Added \ptexversion primitive and co. pTeX p3.8.
+% (2018-04-14) HK pTeX p3.8.1 Bug fix for discontinuous KINSOKU table.
+% (2019-02-03) HK pTeX p3.8.2 Change \inhibitglue, add \disinhibitglue.
+% (2019-10-14) HY pTeX p3.8.3 Allow getting \kansujichar.
+% (2021-02-18) HK pTeX p3.9.0 Add \ifjfont and \iftfont (in 2020-02-06, by HY),
+% Bug fix for getting \kansujichar (in 2020-02-09 = TL20),
+% based on TeX 3.141592653 (for TL21).
+% (2021-06-25) HY pTeX p3.9.1 Various fixes.
+% (2021-06-20) HK pTeX p3.10.0 Add \ucs and \toucs.
+% (2022-01-22) HK pTeX p4.0.0 Distinguish 8-bit characters and Japanese characters
+% for better support of LaTeX3 (expl3).
+% Requires ptexenc version 1.4.0.
+% More details in TUGboat 41(2):329--334, 2020.
+% (2022-10-24) HY pTeX p4.1.0 Add new syntax \font [in jis/ucs].
+% New primitives: \tojis, \ptextracingfonts and \ptexfontname.
+% (2023-09-17) HY pTeX p4.1.1 Support more than 256 different glue/kern.
+
+ at x
+% Here is TeX material that gets inserted after \input webmac
+ at y
+% Here is TeX material that gets inserted after \input webmac
+\def\pTeX{p\kern-.15em\TeX}
+ at z
+
+ at x [1.2] l.200 - pTeX:
+ at d banner==TeX_banner
+ at d banner_k==TeX_banner_k
+ at y
+ at d pTeX_version=4
+ at d pTeX_minor_version=1
+ at d pTeX_revision==".1"
+ at d pTeX_version_string=='-p4.1.1' {current \pTeX\ version}
+@#
+ at d pTeX_banner=='This is pTeX, Version 3.141592653',pTeX_version_string
+ at d pTeX_banner_k==pTeX_banner
+ {printed when \pTeX\ starts}
+@#
+ at d banner==pTeX_banner
+ at d banner_k==pTeX_banner_k
+ at z
+
+ at x [2.??] l.586 - pTeX:
+@!ASCII_code=0..255; {eight-bit numbers}
+ at y
+@!ASCII_code=0..255; {eight-bit numbers}
+@!KANJI_code=0..65535; {sixteen-bit numbers}
+@!ext_ASCII_code=0..32768; { only use 0--511 }
+ at z
+
+ at x pTeX: xchr
+xchr: array [ASCII_code] of text_char;
+ { specifies conversion of output characters }
+ at y
+xchr: array [ext_ASCII_code] of ext_ASCII_code;
+ { specifies conversion of output characters }
+ at z
+
+ at x pTeX: xchr
+for i:=@'177 to @'377 do xchr[i]:=i;
+ at y
+for i:=@'177 to @'777 do xchr[i]:=i;
+ at z
+
+ at x [3.??] l.870 - pTeX:
+@!eight_bits=0..255; {unsigned one-byte quantity}
+ at y
+@!eight_bits=0..255; {unsigned one-byte quantity}
+@!sixteen_bits=0..65535; {unsigned two-bytes quantity}
+ at z
+
+ at x [3.??] l.891 - pTeX:
+@ All of the file opening functions are defined in C.
+ at y
+@ All of the file opening functions are defined in C.
+
+@ Kanji code handling.
+ at z
+
+ at x [3.??] pTeX
+@<Glob...@>=
+@!buffer:^ASCII_code; {lines of characters being read}
+ at y
+In \pTeX, we use another array |buffer2[]| to indicate which byte
+is a part of a Japanese character.
+|buffer2[]| is initialized to zero in reading one line from a file
+(|input_ln|). |buffer2[i]| is set to one when |buffer[i]| is known
+to be a part of a Japanese character, in |get_next| routine.
+
+@<Glob...@>=
+@!buffer:^ASCII_code; {lines of characters being read}
+@!buffer2:^ASCII_code;
+ at z
+
+ at x [4]
+@!packed_ASCII_code = 0..255; {elements of |str_pool| array}
+ at y
+@!packed_ASCII_code = 0..32768; {elements of |str_pool| array}
+ { 256..511 are used by Japanese characters }
+ at z
+
+ at x [4] pTeX: str_eq_buf
+while j<str_start[s+1] do
+ begin if so(str_pool[j])<>buffer[k] then
+ at y
+while j<str_start[s+1] do
+ begin if so(str_pool[j])<>buffer2[k]*@"100+buffer[k] then
+ at z
+
+ at x [4.47] l.1325 - pTeX:
+@!init function get_strings_started:boolean; {initializes the string pool,
+ but returns |false| if something goes wrong}
+label done,exit;
+var k,@!l:0..255; {small indices or counters}
+ at y
+@!init function get_strings_started:boolean; {initializes the string pool,
+ but returns |false| if something goes wrong}
+label done,exit;
+var k,@!l:KANJI_code; {small indices or counters}
+ at z
+
+ at x [5.54] l.1514 - pTeX: Global variables
+@!trick_buf:array[0..ssup_error_line] of ASCII_code; {circular buffer for
+ pseudoprinting}
+ at y
+@!trick_buf:array[0..ssup_error_line] of ext_ASCII_code; {circular buffer for
+ pseudoprinting}
+@!trick_buf2:array[0..ssup_error_line] of 0..2; {pTeX: buffer for KANJI}
+@!kcode_pos: 0..2; {pTeX: denotes whether first byte or second byte of KANJI}
+@!prev_char: ASCII_code;
+ at z
+
+ at x [5.55] l.1519 - pTeX: Initialize the kcode_pos
+@ @<Initialize the output routines@>=
+selector:=term_only; tally:=0; term_offset:=0; file_offset:=0;
+ at y
+@ @<Initialize the output routines@>=
+selector:=term_only; tally:=0; term_offset:=0; file_offset:=0;
+kcode_pos:=0;
+ at z
+
+ at x [5.57] l.1538 - pTeX: kcode_pos
+procedure print_ln; {prints an end-of-line}
+begin case selector of
+term_and_log: begin wterm_cr; wlog_cr;
+ term_offset:=0; file_offset:=0;
+ end;
+log_only: begin wlog_cr; file_offset:=0;
+ end;
+term_only: begin wterm_cr; term_offset:=0;
+ end;
+no_print,pseudo,new_string: do_nothing;
+othercases write_ln(write_file[selector])
+endcases;@/
+ at y
+procedure print_ln; {prints an end-of-line}
+begin case selector of
+term_and_log: begin
+ if kcode_pos=1 then begin wterm(' '); wlog(' '); end;
+ wterm_cr; wlog_cr; term_offset:=0; file_offset:=0;
+ end;
+log_only: begin if kcode_pos=1 then wlog(' ');
+ wlog_cr; file_offset:=0;
+ end;
+term_only: begin if kcode_pos=1 then wterm(' ');
+ wterm_cr; term_offset:=0;
+ end;
+no_print,pseudo,new_string: do_nothing;
+othercases write_ln(write_file[selector])
+endcases;@/
+kcode_pos:=0;
+ at z
+
+ at x [5.58] l.1557 - pTeX: kcode_pos, trick_buf2
+procedure print_char(@!s:ASCII_code); {prints a single character}
+label exit;
+begin if @<Character |s| is the current new-line character@> then
+ if selector<pseudo then
+ begin print_ln; return;
+ end;
+case selector of
+term_and_log: begin wterm(xchr[s]); wlog(xchr[s]);
+ incr(term_offset); incr(file_offset);
+ if term_offset=max_print_line then
+ begin wterm_cr; term_offset:=0;
+ end;
+ if file_offset=max_print_line then
+ begin wlog_cr; file_offset:=0;
+ end;
+ end;
+log_only: begin wlog(xchr[s]); incr(file_offset);
+ if file_offset=max_print_line then print_ln;
+ end;
+term_only: begin wterm(xchr[s]); incr(term_offset);
+ if term_offset=max_print_line then print_ln;
+ end;
+no_print: do_nothing;
+pseudo: if tally<trick_count then trick_buf[tally mod error_line]:=s;
+ at y
+procedure print_char(@!s:ext_ASCII_code); {prints a single character}
+label exit; {label is not used but nonetheless kept (for other changes?)}
+begin if @<Character |s| is the current new-line character@> then
+ if selector<pseudo then
+ begin print_ln; return;
+ end;
+if s>@"1FF then s:=s mod 256;
+if s<256 then kcode_pos:=0
+else if kcode_pos=1 then kcode_pos:=2
+else if iskanji1(xchr[s-256]) then
+ begin kcode_pos:=1;
+ if (selector=term_and_log)or(selector=log_only) then
+ if file_offset>=max_print_line-1 then
+ begin wlog_cr; file_offset:=0;
+ end;
+ if (selector=term_and_log)or(selector=term_only) then
+ if term_offset>=max_print_line-1 then
+ begin wterm_cr; term_offset:=0;
+ end;
+ end
+else kcode_pos:=0;
+case selector of
+term_and_log: begin wterm(xchr[s]); incr(term_offset);
+ if term_offset=max_print_line then
+ begin wterm_cr; term_offset:=0;
+ end;
+ wlog(xchr[s]); incr(file_offset);
+ if file_offset=max_print_line then
+ begin wlog_cr; file_offset:=0;
+ end;
+ end;
+log_only: begin wlog(xchr[s]); incr(file_offset);
+ if file_offset=max_print_line then print_ln;
+ end;
+term_only: begin wterm(xchr[s]); incr(term_offset);
+ if term_offset=max_print_line then print_ln;
+ end;
+no_print: do_nothing;
+pseudo: if tally<trick_count then
+ begin trick_buf[tally mod error_line]:=s;
+ trick_buf2[tally mod error_line]:=kcode_pos;
+ end;
+ at z
+
+ at x l.1603 - pTeX
+procedure print(@!s:integer); {prints string |s|}
+label exit;
+var j:pool_pointer; {current character code position}
+@!nl:integer; {new-line character to restore}
+begin if s>=str_ptr then s:="???" {this can't happen}
+ at .???@>
+else if s<256 then
+ if s<0 then s:="???" {can't happen}
+ else begin if selector>pseudo then
+ begin print_char(s); return; {internal strings are not expanded}
+ end;
+ if (@<Character |s| is the current new-line character@>) then
+ if selector<pseudo then
+ begin print_ln; return;
+ end;
+ nl:=new_line_char; new_line_char:=-1;
+ {temporarily disable new-line character}
+ j:=str_start[s];
+ while j<str_start[s+1] do
+ begin print_char(so(str_pool[j])); incr(j);
+ end;
+ new_line_char:=nl; return;
+ end;
+j:=str_start[s];
+while j<str_start[s+1] do
+ begin print_char(so(str_pool[j])); incr(j);
+ end;
+exit:end;
+ at y
+procedure print(@!s:integer); {prints string |s|}
+label exit;
+var j:pool_pointer; {current character code position}
+@!nl:integer; {new-line character to restore}
+begin if s>=str_ptr then s:="???" {this can't happen}
+ at .???@>
+else if s<256 then
+ if s<0 then s:="???" {can't happen}
+ else begin if selector>pseudo then
+ begin print_char(s); return; {internal strings are not expanded}
+ end;
+ if (@<Character |s| is the current new-line character@>) then
+ if selector<pseudo then
+ begin print_ln; return;
+ end;
+ if xprn[s] then begin print_char(s); return; end;
+ nl:=new_line_char; new_line_char:=-1;
+ {temporarily disable new-line character}
+ j:=str_start[s];
+ while j<str_start[s+1] do
+ begin print_char(so(str_pool[j])); incr(j);
+ end;
+ new_line_char:=nl; return;
+ end;
+j:=str_start[s];
+while j<str_start[s+1] do
+ begin print_char(so(str_pool[j])); incr(j);
+ end;
+exit:end;
+ at z
+
+ at x
+procedure slow_print(@!s:integer); {prints string |s|}
+var j:pool_pointer; {current character code position}
+begin if (s>=str_ptr) or (s<256) then print(s)
+else begin j:=str_start[s];
+ while j<str_start[s+1] do
+ begin print(so(str_pool[j])); incr(j);
+ end;
+ end;
+end;
+ at y
+procedure slow_print(@!s:integer); {prints string |s|}
+var j:pool_pointer; {current character code position}
+c:integer;
+begin if (s>=str_ptr) or (s<256) then print(s)
+else begin j:=str_start[s];
+ while j<str_start[s+1] do
+ begin c:=so(str_pool[j]);
+ if c>=@"100 then print_char(c) else print(c); incr(j);
+ end;
+ end;
+end;
+
+procedure slow_print_filename(@!s:integer);
+ {prints string |s| which represents filename, without code conversion}
+var i,j,l:pool_pointer; p:integer;
+begin if (s>=str_ptr) or (s<256) then print(s)
+else begin i:=str_start[s]; l:=str_start[s+1];
+ while i<l do begin
+ p:=multistrlenshort(str_pool, l, i);
+ if p<>1 then
+ begin for j:=i to i+p-1 do print_char(@"100+(so(str_pool[j]) mod @"100));
+ i:=i+p; end
+ else begin print(so(str_pool[i]) mod @"100); incr(i); end;
+ end;
+ end;
+end;
+
+procedure print_quoted(@!s:integer);
+ {prints string |s| which represents filename,
+ omitting quotes and with code conversion}
+var i,l:pool_pointer; j,p:integer;
+begin if s<>0 then begin
+ i:=str_start[s]; l:=str_start[s+1];
+ while i<l do begin
+ p:=multistrlenshort(str_pool, l, i);
+ if p<>1 then begin
+ for j:=i to i+p-1 do print_char(@"100+(so(str_pool[j]) mod @"100));
+ i:=i+p; end
+ else begin
+ if so(str_pool[i])<>"""" then print(so(str_pool[i]) mod @"100);
+ incr(i); end;
+ end;
+ end;
+end;
+
+ at z
+
+ at x [5.61] l.1656 - pTeX:
+@<Initialize the output...@>=
+if src_specials_p or file_line_error_style_p or parse_first_line_p then
+ wterm(banner_k)
+else
+ wterm(banner);
+ at y
+@<Initialize the output...@>=
+if src_specials_p or file_line_error_style_p or parse_first_line_p then
+ wterm(banner_k)
+else
+ wterm(banner);
+ wterm(' (');
+ wterm(conststringcast(get_enc_string));
+ wterm(')');
+ at z
+
+ at x pTeX: print_hex for "Invalid KANJI code" or "Invalid KANSUJI char" errors
+@ Old versions of \TeX\ needed a procedure called |print_ASCII| whose function
+ at y
+@ Hexadecimal printing.
+
+ at d print_hex_safe(#)==if #<0 then print_int(#) else print_hex(#)
+
+@ Old versions of \TeX\ needed a procedure called |print_ASCII| whose function
+ at z
+
+ at x [5.??] - pTeX: term_input
+ at p procedure term_input; {gets a line from the terminal}
+ at y
+ at p procedure@?print_unread_buffer_with_ptenc; forward;@t\2@>@/
+procedure term_input; {gets a line from the terminal}
+ at z
+ at x [5.??] - pTeX: term_input
+if last<>first then for k:=first to last-1 do print(buffer[k]);
+ at y
+if last<>first then print_unread_buffer_with_ptenc(first,last);
+ at z
+
+ at x
+ at d max_quarterword=255 {largest allowable value in a |quarterword|}
+ at y
+ at d max_quarterword=@"FFFF {largest allowable value in a |quarterword|}
+ at z
+
+ at x
+ at d max_halfword==@"FFFFFFF {largest allowable value in a |halfword|}
+ at y
+ at d max_halfword==@"FFFFFFF {largest allowable value in a |halfword|}
+ at d max_cjk_val=@"10000
+ at z
+
+ at x [8.111] l.2436 - pTeX: check hi/ho
+ (mem_top+sup_main_memory>=max_halfword) then bad:=14;
+ at y
+ (mem_top+sup_main_memory>=max_halfword)or@|
+ (hi(0)<>0) then bad:=14;
+ at z
+
+ at x [8.112] l.2450 - pTeX: hi/ho
+sufficiently large.
+ at y
+sufficiently large and this is required for \pTeX.
+ at z
+
+ at x [8.112] l.2588 - pTeX:
+ at d ho(#)==# {to take a sixteen-bit item from a halfword}
+ at y
+ at d ho(#)==# {to take a sixteen-bit item from a halfword}
+ at d KANJI(#)==# {pTeX: to output a KANJI code}
+ at d tokanji(#)==# {pTeX: to take a KANJI code from a halfword}
+ at d tonum(#)==# {pTeX: to put a KANJI code into a halfword}
+ at z
+
+ at x [10.135] l.2895 - pTeX: box_dir
+|fil|, |fill|, or |filll|). The |subtype| field is not used.
+ at y
+|fil|, |fill|, or |filll|). The |subtype| field is not used in \TeX.
+In \pTeX\ the |subtype| field records the box direction |box_dir|.
+ at z
+
+ at x [10.135] l.2897 - pTeX: box_dir
+ at d hlist_node=0 {|type| of hlist nodes}
+ at d box_node_size=7 {number of words to allocate for a box node}
+ at y
+ at d hlist_node=0 {|type| of hlist nodes}
+ at d box_node_size=8 {number of words to allocate for a box node}
+@#
+ at d dir_max = 5 {the maximal absolute value of direction}
+ at d box_dir(#) == (qo(subtype(#))-dir_max) {direction of a box}
+ at d set_box_dir(#) == subtype(#):=set_box_dir_end
+ at d set_box_dir_end(#) == qi(#)+dir_max
+@#
+ at d dir_default = 0 {direction of the box, default Left to Right}
+ at d dir_dtou = 1 {direction of the box, Bottom to Top}
+ at d dir_tate = 3 {direction of the box, Top to Bottom}
+ at d dir_yoko = 4 {direction of the box, equal default}
+ at d any_dir == dir_yoko,dir_tate,dir_dtou
+@#
+ at z
+
+ at x [10.135] l.2897 - pTeX: space_ptr, xspace_ptr
+ at d glue_offset = 6 {position of |glue_set| in a box node}
+ at d glue_set(#) == mem[#+glue_offset].gr
+ {a word of type |glue_ratio| for glue setting}
+ at y
+ at d glue_offset = 6 {position of |glue_set| in a box node}
+ at d glue_set(#) == mem[#+glue_offset].gr
+ {a word of type |glue_ratio| for glue setting}
+ at d space_offset = 7 {position of |glue_set| in a box node}
+ at d space_ptr(#) == link(#+space_offset)
+ at d xspace_ptr(#) == info(#+space_offset)
+ at z
+
+ at x [10.136] l.3037 - pTeX: space_ptr, xspace_ptr
+width(p):=0; depth(p):=0; height(p):=0; shift_amount(p):=0; list_ptr(p):=null;
+glue_sign(p):=normal; glue_order(p):=normal; set_glue_ratio_zero(glue_set(p));
+ at y
+width(p):=0; depth(p):=0; height(p):=0; shift_amount(p):=0; list_ptr(p):=null;
+glue_sign(p):=normal; glue_order(p):=normal; set_glue_ratio_zero(glue_set(p));
+space_ptr(p):=zero_glue; xspace_ptr(p):=zero_glue; set_box_dir(p)(dir_default);
+add_glue_ref(zero_glue); add_glue_ref(zero_glue);
+ at z
+
+ at x [10.137] l.3045 - pTeX: direction change node
+ at d vlist_node=1 {|type| of vlist nodes}
+ at y
+ at d vlist_node=1 {|type| of vlist nodes}
+
+@ A |dir_node| stands for direction change.
+
+ at d dir_node=2 {|type| of dir nodes}
+
+ at p function new_dir_node(b:pointer; dir:eight_bits):pointer;
+var p:pointer; {the new node}
+begin if type(b)>vlist_node then confusion("new_dir_node:not box");
+p:=new_null_box; type(p):=dir_node; set_box_dir(p)(dir);
+case abs(box_dir(b)) of
+ dir_yoko: @<Yoko to other direction@>;
+ dir_tate: @<Tate to other direction@>;
+ dir_dtou: @<DtoU to other direction@>;
+ othercases confusion("new_dir_node:illegal dir");
+endcases;
+link(b):=null; list_ptr(p):=b;
+new_dir_node:=p;
+end;
+
+@ @<Yoko to other direction@>=
+ case dir of
+ dir_tate: begin width(p):=height(b)+depth(b);
+ depth(p):=width(b)/2; height(p):=width(b)-depth(p);
+ end;
+ dir_dtou: begin width(p):=height(b)+depth(b);
+ depth(p):=0; height(p):=width(b);
+ end;
+ othercases confusion("new_dir_node:y->?");
+ endcases
+
+@ @<Tate to other direction@>=
+ case dir of
+ dir_yoko: begin width(p):=height(b)+depth(b);
+ depth(p):=0; height(p):=width(b);
+ end;
+ dir_dtou: begin width(p):=width(b);
+ depth(p):=height(b); height(p):=depth(b);
+ end;
+ othercases confusion("new_dir_node:t->?");
+ endcases
+
+@ @<DtoU to other direction@>=
+ case dir of
+ dir_yoko: begin width(p):=height(b)+depth(b);
+ depth(p):=0; height(p):=width(b);
+ end;
+ dir_tate: begin width(p):=width(b);
+ depth(p):=height(b); height(p):=depth(b);
+ end;
+ othercases confusion("new_dir_node:d->?");
+ endcases
+ at z
+
+ at x [10.138] l.3054 - pTeX: renumber rule_node
+ at d rule_node=2 {|type| of rule nodes}
+ at y
+ at d rule_node=3 {|type| of rule nodes}
+ at z
+
+ at x [10.140] l.3083 - pTeX: renumber ins_node, add ins_dir field
+ at d ins_node=3 {|type| of insertion nodes}
+ at d ins_node_size=5 {number of words to allocate for an insertion}
+ at d float_cost(#)==mem[#+1].int {the |floating_penalty| to be used}
+ at d ins_ptr(#)==info(#+4) {the vertical list to be inserted}
+ at d split_top_ptr(#)==link(#+4) {the |split_top_skip| to be used}
+ at y
+ at d ins_node=4 {|type| of insertion nodes}
+ at d ins_node_size=6 {number of words to allocate for an insertion}
+ at d float_cost(#)==mem[#+1].int {the |floating_penalty| to be used}
+ at d ins_ptr(#)==info(#+4) {the vertical list to be inserted}
+ at d split_top_ptr(#)==link(#+4) {the |split_top_skip| to be used}
+ at d ins_dir(#)==(subtype(#+5)-dir_max) {direction of |ins_node|}
+ at d set_ins_dir(#) == subtype(#+5):=set_box_dir_end
+ at z
+
+ at x [10.141] l.3089 - pTeX: disp_node
+@ A |mark_node| has a |mark_ptr| field that points to the reference count
+ at y
+@ A |disp_node| has a |disp_dimen| field that points to the displacement
+distance of the baselineshift between Latin characters and Kanji chatacters.
+
+ at d disp_node=5 {|type| of a displace node}
+ at d disp_dimen(#)==mem[#+1].sc
+
+@ A |mark_node| has a |mark_ptr| field that points to the reference count
+ at z
+
+ at x [10.140] l.3095 - pTeX: renumber nodes
+ at d mark_node=4 {|type| of a mark node}
+ at y
+ at d mark_node=6 {|type| of a mark node}
+ at z
+
+ at x [10.141] l.3105 - pTeX: renumber nodes
+ at d adjust_node=5 {|type| of an adjust node}
+ at y
+ at d adjust_node=7 {|type| of an adjust node}
+ at z
+
+ at x [10.142] l.3122 - pTeX: renumber nodes
+ at d ligature_node=6 {|type| of a ligature node}
+ at y
+ at d ligature_node=8 {|type| of a ligature node}
+ at z
+
+ at x [10.145] l.3163 - pTeX: renumber nodes
+ at d disc_node=7 {|type| of a discretionary node}
+ at y
+ at d disc_node=9 {|type| of a discretionary node}
+ at z
+
+ at x [10.146] l.3191 - pTeX: renumber nodes
+ at d whatsit_node=8 {|type| of special extension nodes}
+ at y
+ at d whatsit_node=10 {|type| of special extension nodes}
+ at z
+
+ at x [10.147] l.3198 - pTeX: renumber nodes
+ at d math_node=9 {|type| of a math node}
+ at y
+ at d math_node=11 {|type| of a math node}
+ at z
+
+ at x [10.150] l.3244 - pTeX: renumber nodes
+ at d glue_node=10 {|type| of node that points to a glue specification}
+ at y
+ at d glue_node=12 {|type| of node that points to a glue specification}
+ at z
+
+ at x [10.155] l.3342 - pTeX: renumber nodes
+ at d kern_node=11 {|type| of a kern node}
+ at d explicit=1 {|subtype| of kern nodes from \.{\\kern} and \.{\\/}}
+ at d acc_kern=2 {|subtype| of kern nodes from accents}
+ at y
+ at d kern_node=13 {|type| of a kern node}
+ at d explicit=1 {|subtype| of kern nodes from \.{\\kern}}
+ at d acc_kern=2 {|subtype| of kern nodes from accents}
+ at d ita_kern=3 {|subtype| of kern nodes from \.{\\/}}
+ at z
+
+ at x [10.157] l.3363 - pTeX: renumber nodes
+ at d penalty_node=12 {|type| of a penalty node}
+ at y
+ at d penalty_node=14 {|type| of a penalty node}
+ at d widow_pena=1 {|subtype| of penalty nodes from \.{\\jcharwidowpenalty}}
+ at d kinsoku_pena=2 {|subtype| of penalty nodes from kinsoku}
+ at z
+
+ at x [10.159] l.3392 - pTeX: renumber nodes
+ at d unset_node=13 {|type| for an unset node}
+ at y
+ at d unset_node=15 {|type| for an unset node}
+ at z
+
+ at x [10.160] l.3397 - pTeX: renumber nodes
+@ In fact, there are still more types coming. When we get to math formula
+processing we will see that a |style_node| has |type=14|; and a number
+of larger type codes will also be defined, for use in math mode only.
+ at y
+@ In fact, there are still more types coming. When we get to math formula
+processing we will see that a |style_node| has |type=16|; and a number
+of larger type codes will also be defined, for use in math mode only.
+ at z
+
+ at x [12.???] pTeX: \ptexfontname, \ptextracingfonts
+ at p procedure short_display(@!p:integer); {prints highlights of list |p|}
+ at y
+ at p@t\4@>@<Declare the pTeX-specific |print_font_...| procedures@>@;@/
+procedure short_display(@!p:integer); {prints highlights of list |p|}
+ at z
+
+ at x [12.174] l.3662 - pTeX: print KANJI
+ print_ASCII(qo(character(p)));
+ at y
+ if font_dir[font(p)]<>dir_default then
+ begin p:=link(p); print_kanji(info(p));
+ end
+ else print_ASCII(qo(character(p)));
+ at z
+
+ at x [12.175] l.3672 - pTeX: Print a short indication of dir_nodes.
+hlist_node,vlist_node,ins_node,whatsit_node,mark_node,adjust_node,
+ unset_node: print("[]");
+ at y
+hlist_node,vlist_node,dir_node,ins_node,whatsit_node,mark_node,adjust_node,
+ unset_node: print("[]");
+ at z
+
+ at x [12.176] l.3698 - pTeX: print KANJI.
+ print_char(" "); print_ASCII(qo(character(p)));
+ at y
+ print_char(" ");
+ if font_dir[font(p)]<>dir_default then
+ begin p:=link(p); print_kanji(info(p));
+ end
+ else print_ASCII(qo(character(p)));
+ at z
+
+ at x [12.183] l.3815 - pTeX: display char_node and disp_node.
+if is_char_node(p) then print_font_and_char(p)
+else case type(p) of
+ hlist_node,vlist_node,unset_node: @<Display box |p|@>;
+ rule_node: @<Display rule |p|@>;
+ ins_node: @<Display insertion |p|@>;
+ whatsit_node: @<Display the whatsit node |p|@>;
+ at y
+if is_char_node(p) then
+ begin print_font_and_char(p);
+ if font_dir[font(p)]<>dir_default then p:=link(p)
+ end
+else case type(p) of
+ hlist_node,vlist_node,dir_node,unset_node: @<Display box |p|@>;
+ rule_node: @<Display rule |p|@>;
+ ins_node: @<Display insertion |p|@>;
+ whatsit_node: @<Display the whatsit node |p|@>;
+ disp_node: begin print_esc("displace "); print_scaled(disp_dimen(p));
+ end;
+ at z
+
+ at x [12.184] l.3833 - pTeX: display dir_node.
+@ @<Display box |p|@>=
+begin if type(p)=hlist_node then print_esc("h")
+else if type(p)=vlist_node then print_esc("v")
+else print_esc("unset");
+ at y
+@ @<Display box |p|@>=
+begin case type(p) of
+ hlist_node: print_esc("h");
+ vlist_node: print_esc("v");
+ dir_node: print_esc("dir");
+ othercases print_esc("unset")
+ endcases@/;
+ at z
+ at x [12.184] l.3842 - pTeX: display dir_node.
+ if shift_amount(p)<>0 then
+ begin print(", shifted "); print_scaled(shift_amount(p));
+ end;
+ at y
+ if shift_amount(p)<>0 then
+ begin print(", shifted "); print_scaled(shift_amount(p));
+ end;
+ at z
+ at x [12.184] l.3845 - pTeX: display dir_node.
+ end;
+ at y
+ if box_dir(p)<>dir_default then
+ begin print(", "); print_direction(box_dir(p));
+ end;
+ end;
+ at z
+
+ at x [12.188] l.3896 - pTeX: Display insertion and ins_dir.
+@ @<Display insertion |p|@>=
+begin print_esc("insert"); print_int(qo(subtype(p)));
+print(", natural size "); print_scaled(height(p));
+ at y
+@ @<Display insertion |p|@>=
+begin print_esc("insert"); print_int(qo(subtype(p)));
+print_dir(abs(ins_dir(p)));
+print(", natural size "); print_scaled(height(p));
+ at z
+
+ at x [12.194] l.3961 - pTeX: Display penalty usage
+@ @<Display penalty |p|@>=
+begin print_esc("penalty "); print_int(penalty(p));
+end
+ at y
+@ @<Display penalty |p|@>=
+begin print_esc("penalty "); print_int(penalty(p));
+if subtype(p)=widow_pena then print("(for \jcharwidowpenalty)")
+else if subtype(p)=kinsoku_pena then print("(for kinsoku)");
+end
+ at z
+
+ at x [13.202] l.4043 - pTeX: dir_node, disp_node
+ hlist_node,vlist_node,unset_node: begin flush_node_list(list_ptr(p));
+ free_node(p,box_node_size); goto done;
+ end;
+ at y
+ hlist_node,vlist_node,dir_node,unset_node:
+ begin flush_node_list(list_ptr(p));
+ fast_delete_glue_ref(space_ptr(p));
+ fast_delete_glue_ref(xspace_ptr(p));
+ free_node(p,box_node_size); goto done;
+ end;
+ at z
+
+ at x [13.202] l.4056 - pTeX:
+ kern_node,math_node,penalty_node: do_nothing;
+ at y
+ disp_node,
+ kern_node,math_node,penalty_node: do_nothing;
+ at z
+
+ at x [14.206] l.4121 - pTeX: space_ptr, xspace_ptr, dir_node, disp_node
+@ @<Case statement to copy...@>=
+ at y
+@ @<Case statement to copy...@>=
+ at z
+ at x [14.206] l.4123
+hlist_node,vlist_node,unset_node: begin r:=get_node(box_node_size);
+ mem[r+6]:=mem[p+6]; mem[r+5]:=mem[p+5]; {copy the last two words}
+ at y
+dir_node,
+hlist_node,vlist_node,unset_node: begin r:=get_node(box_node_size);
+ mem[r+7]:=mem[p+7];
+ mem[r+6]:=mem[p+6]; mem[r+5]:=mem[p+5]; {copy the last three words}
+ add_glue_ref(space_ptr(r)); add_glue_ref(xspace_ptr(r));
+ at z
+ at x [14.206] l.4130
+ins_node: begin r:=get_node(ins_node_size); mem[r+4]:=mem[p+4];
+ add_glue_ref(split_top_ptr(p));
+ ins_ptr(r):=copy_node_list(ins_ptr(p)); {this affects |mem[r+4]|}
+ words:=ins_node_size-1;
+ end;
+ at y
+ins_node: begin r:=get_node(ins_node_size);
+ mem[r+5]:=mem[p+5]; mem[r+4]:=mem[p+4];
+ add_glue_ref(split_top_ptr(p));
+ ins_ptr(r):=copy_node_list(ins_ptr(p)); {this affects |mem[r+4]|}
+ words:=ins_node_size-2;
+ end;
+ at z
+
+ at x [14.206] l.4140 - pTeX: disp_node
+kern_node,math_node,penalty_node: begin r:=get_node(small_node_size);
+ at y
+disp_node,
+kern_node,math_node,penalty_node: begin r:=get_node(small_node_size);
+ at z
+
+ at x [15.207] l.4201 - pTeX: Add kanji, kana, other_kchar category codes.
+ at d max_char_code=15 {largest catcode for individual characters}
+ at y
+ at d kanji=16 {kanji}
+ at d kana=17 {hiragana, katakana, alphabet}
+ at d other_kchar=18 {kanji codes}
+ at d max_char_code=18 {largest catcode for individual characters}
+ at z
+
+ at x [15.208] l.4207 - pTeX: Add inhibit_glue, chg_dir.
+ at d char_num=16 {character specified numerically ( \.{\\char} )}
+ at d math_char_num=17 {explicit math code ( \.{\\mathchar} )}
+ at d mark=18 {mark definition ( \.{\\mark} )}
+ at d xray=19 {peek inside of \TeX\ ( \.{\\show}, \.{\\showbox}, etc.~)}
+ at d make_box=20 {make a box ( \.{\\box}, \.{\\copy}, \.{\\hbox}, etc.~)}
+ at d hmove=21 {horizontal motion ( \.{\\moveleft}, \.{\\moveright} )}
+ at d vmove=22 {vertical motion ( \.{\\raise}, \.{\\lower} )}
+ at d un_hbox=23 {unglue a box ( \.{\\unhbox}, \.{\\unhcopy} )}
+ at d un_vbox=24 {unglue a box ( \.{\\unvbox}, \.{\\unvcopy} )}
+ at y
+ at d char_num=max_char_code+1 {character specified numerically ( \.{\\char} )}
+ at d math_char_num=char_num+1 {explicit math code ( \.{\\mathchar} )}
+ at d mark=math_char_num+1 {mark definition ( \.{\\mark} )}
+ at d xray=mark+1 {peek inside of \TeX\ ( \.{\\show}, \.{\\showbox}, etc.~)}
+ at d make_box=xray+1 {make a box ( \.{\\box}, \.{\\copy}, \.{\\hbox}, etc.~)}
+ at d hmove=make_box+1 {horizontal motion ( \.{\\moveleft}, \.{\\moveright} )}
+ at d vmove=hmove+1 {vertical motion ( \.{\\raise}, \.{\\lower} )}
+ at d un_hbox=vmove+1 {unglue a box ( \.{\\unhbox}, \.{\\unhcopy} )}
+ at d un_vbox=un_hbox+1 {unglue a box ( \.{\\unvbox}, \.{\\unvcopy} )}
+ at z
+ at x [15.208] l.4207 - pTeX: Add inhibit_glue, chg_dir.
+ at d remove_item=25 {nullify last item ( \.{\\unpenalty},
+ \.{\\unkern}, \.{\\unskip} )}
+ at d hskip=26 {horizontal glue ( \.{\\hskip}, \.{\\hfil}, etc.~)}
+ at d vskip=27 {vertical glue ( \.{\\vskip}, \.{\\vfil}, etc.~)}
+ at d mskip=28 {math glue ( \.{\\mskip} )}
+ at d kern=29 {fixed space ( \.{\\kern} )}
+ at d mkern=30 {math kern ( \.{\\mkern} )}
+ at d leader_ship=31 {use a box ( \.{\\shipout}, \.{\\leaders}, etc.~)}
+ at d halign=32 {horizontal table alignment ( \.{\\halign} )}
+ at d valign=33 {vertical table alignment ( \.{\\valign} )}
+ at y
+ at d remove_item=un_vbox+1 {nullify last item ( \.{\\unpenalty},
+ \.{\\unkern}, \.{\\unskip} )}
+ at d hskip=remove_item+1 {horizontal glue ( \.{\\hskip}, \.{\\hfil}, etc.~)}
+ at d vskip=hskip+1 {vertical glue ( \.{\\vskip}, \.{\\vfil}, etc.~)}
+ at d mskip=vskip+1 {math glue ( \.{\\mskip} )}
+ at d kern=mskip+1 {fixed space ( \.{\\kern} )}
+ at d mkern=kern+1 {math kern ( \.{\\mkern} )}
+ at d leader_ship=mkern+1 {use a box ( \.{\\shipout}, \.{\\leaders}, etc.~)}
+ at d halign=leader_ship+1 {horizontal table alignment ( \.{\\halign} )}
+ at d valign=halign+1 {vertical table alignment ( \.{\\valign} )}
+ at z
+ at x [15.208] l.4207 - pTeX: Add inhibit_glue, chg_dir.
+ at d no_align=34 {temporary escape from alignment ( \.{\\noalign} )}
+ at d vrule=35 {vertical rule ( \.{\\vrule} )}
+ at d hrule=36 {horizontal rule ( \.{\\hrule} )}
+ at d insert=37 {vlist inserted in box ( \.{\\insert} )}
+ at d vadjust=38 {vlist inserted in enclosing paragraph ( \.{\\vadjust} )}
+ at d ignore_spaces=39 {gobble |spacer| tokens ( \.{\\ignorespaces} )}
+ at d after_assignment=40 {save till assignment is done ( \.{\\afterassignment} )}
+ at d after_group=41 {save till group is done ( \.{\\aftergroup} )}
+ at d break_penalty=42 {additional badness ( \.{\\penalty} )}
+ at d start_par=43 {begin paragraph ( \.{\\indent}, \.{\\noindent} )}
+ at d ital_corr=44 {italic correction ( \.{\\/} )}
+ at d accent=45 {attach accent in text ( \.{\\accent} )}
+ at d math_accent=46 {attach accent in math ( \.{\\mathaccent} )}
+ at d discretionary=47 {discretionary texts ( \.{\\-}, \.{\\discretionary} )}
+ at d eq_no=48 {equation number ( \.{\\eqno}, \.{\\leqno} )}
+ at d left_right=49 {variable delimiter ( \.{\\left}, \.{\\right} )}
+ at y
+ at d no_align=valign+1 {temporary escape from alignment ( \.{\\noalign} )}
+ at d vrule=no_align+1 {vertical rule ( \.{\\vrule} )}
+ at d hrule=vrule+1 {horizontal rule ( \.{\\hrule} )}
+ at d insert=hrule+1 {vlist inserted in box ( \.{\\insert} )}
+ at d vadjust=insert+1 {vlist inserted in enclosing paragraph ( \.{\\vadjust} )}
+ at d ignore_spaces=vadjust+1 {gobble |spacer| tokens ( \.{\\ignorespaces} )}
+ at d after_assignment=ignore_spaces+1 {save till assignment is done ( \.{\\afterassignment} )}
+ at d after_group=after_assignment+1 {save till group is done ( \.{\\aftergroup} )}
+ at d break_penalty=after_group+1 {additional badness ( \.{\\penalty} )}
+ at d start_par=break_penalty+1 {begin paragraph ( \.{\\indent}, \.{\\noindent} )}
+ at d ital_corr=start_par+1 {italic correction ( \.{\\/} )}
+ at d accent=ital_corr+1 {attach accent in text ( \.{\\accent} )}
+ at d math_accent=accent+1 {attach accent in math ( \.{\\mathaccent} )}
+ at d discretionary=math_accent+1 {discretionary texts ( \.{\\-}, \.{\\discretionary} )}
+ at d eq_no=discretionary+1 {equation number ( \.{\\eqno}, \.{\\leqno} )}
+ at d left_right=eq_no+1 {variable delimiter ( \.{\\left}, \.{\\right} )}
+ at z
+ at x [15.208] l.4207 - pTeX: Add inhibit_glue, chg_dir.
+ at d math_comp=50 {component of formula ( \.{\\mathbin}, etc.~)}
+ at d limit_switch=51 {diddle limit conventions ( \.{\\displaylimits}, etc.~)}
+ at d above=52 {generalized fraction ( \.{\\above}, \.{\\atop}, etc.~)}
+ at d math_style=53 {style specification ( \.{\\displaystyle}, etc.~)}
+ at d math_choice=54 {choice specification ( \.{\\mathchoice} )}
+ at d non_script=55 {conditional math glue ( \.{\\nonscript} )}
+ at d vcenter=56 {vertically center a vbox ( \.{\\vcenter} )}
+ at d case_shift=57 {force specific case ( \.{\\lowercase}, \.{\\uppercase}~)}
+ at d message=58 {send to user ( \.{\\message}, \.{\\errmessage} )}
+ at d extension=59 {extensions to \TeX\ ( \.{\\write}, \.{\\special}, etc.~)}
+ at d in_stream=60 {files for reading ( \.{\\openin}, \.{\\closein} )}
+ at d begin_group=61 {begin local grouping ( \.{\\begingroup} )}
+ at d end_group=62 {end local grouping ( \.{\\endgroup} )}
+ at d omit=63 {omit alignment template ( \.{\\omit} )}
+ at d ex_space=64 {explicit space ( \.{\\\ } )}
+ at d no_boundary=65 {suppress boundary ligatures ( \.{\\noboundary} )}
+ at d radical=66 {square root and similar signs ( \.{\\radical} )}
+ at d end_cs_name=67 {end control sequence ( \.{\\endcsname} )}
+ at d min_internal=68 {the smallest code that can follow \.{\\the}}
+ at d char_given=68 {character code defined by \.{\\chardef}}
+ at d math_given=69 {math code defined by \.{\\mathchardef}}
+ at d last_item=70 {most recent item ( \.{\\lastpenalty},
+ \.{\\lastkern}, \.{\\lastskip} )}
+ at d max_non_prefixed_command=70 {largest command code that can't be \.{\\global}}
+ at y
+ at d math_comp=left_right+1 {component of formula ( \.{\\mathbin}, etc.~)}
+ at d limit_switch=math_comp+1 {diddle limit conventions ( \.{\\displaylimits}, etc.~)}
+ at d above=limit_switch+1 {generalized fraction ( \.{\\above}, \.{\\atop}, etc.~)}
+ at d math_style=above+1 {style specification ( \.{\\displaystyle}, etc.~)}
+ at d math_choice=math_style+1 {choice specification ( \.{\\mathchoice} )}
+ at d non_script=math_choice+1 {conditional math glue ( \.{\\nonscript} )}
+ at d vcenter=non_script+1 {vertically center a vbox ( \.{\\vcenter} )}
+ at d case_shift=vcenter+1 {force specific case ( \.{\\lowercase}, \.{\\uppercase}~)}
+ at d message=case_shift+1 {send to user ( \.{\\message}, \.{\\errmessage} )}
+ at d extension=message+1 {extensions to \TeX\ ( \.{\\write}, \.{\\special}, etc.~)}
+ at d in_stream=extension+1 {files for reading ( \.{\\openin}, \.{\\closein} )}
+ at d begin_group=in_stream+1 {begin local grouping ( \.{\\begingroup} )}
+ at d end_group=begin_group+1 {end local grouping ( \.{\\endgroup} )}
+ at d omit=end_group+1 {omit alignment template ( \.{\\omit} )}
+ at d ex_space=omit+1 {explicit space ( \.{\\\ } )}
+ at d no_boundary=ex_space+1 {suppress boundary ligatures ( \.{\\noboundary} )}
+ at d radical=no_boundary+1 {square root and similar signs ( \.{\\radical} )}
+ at d end_cs_name=radical+1 {end control sequence ( \.{\\endcsname} )}
+ at d min_internal=end_cs_name+1 {the smallest code that can follow \.{\\the}}
+ at d char_given=min_internal {character code defined by \.{\\chardef}}
+ at d math_given=char_given+1 {math code defined by \.{\\mathchardef}}
+ at d last_item=math_given+1 {most recent item ( \.{\\lastpenalty},
+ \.{\\lastkern}, \.{\\lastskip} )}
+ at d inhibit_glue=last_item+1 {inhibit adjust glue ( \.{\\inhibitglue} )}
+ at d chg_dir=inhibit_glue+1 {change dir mode by \.{\\tate}, \.{\\yoko}}
+ at d max_non_prefixed_command=chg_dir {largest command code that can't be \.{\\global}}
+ at z
+
+ at x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
+ at d toks_register=71 {token list register ( \.{\\toks} )}
+ at d assign_toks=72 {special token list ( \.{\\output}, \.{\\everypar}, etc.~)}
+ at d assign_int=73 {user-defined integer ( \.{\\tolerance}, \.{\\day}, etc.~)}
+ at d assign_dimen=74 {user-defined length ( \.{\\hsize}, etc.~)}
+ at d assign_glue=75 {user-defined glue ( \.{\\baselineskip}, etc.~)}
+ at d assign_mu_glue=76 {user-defined muglue ( \.{\\thinmuskip}, etc.~)}
+ at d assign_font_dimen=77 {user-defined font dimension ( \.{\\fontdimen} )}
+ at d assign_font_int=78 {user-defined font integer ( \.{\\hyphenchar},
+ \.{\\skewchar} )}
+ at d set_aux=79 {specify state info ( \.{\\spacefactor}, \.{\\prevdepth} )}
+ at d set_prev_graf=80 {specify state info ( \.{\\prevgraf} )}
+ at d set_page_dimen=81 {specify state info ( \.{\\pagegoal}, etc.~)}
+ at d set_page_int=82 {specify state info ( \.{\\deadcycles},
+ at y
+ at d toks_register=max_non_prefixed_command+1 {token list register ( \.{\\toks} )}
+ at d assign_toks=toks_register+1
+ {special token list ( \.{\\output}, \.{\\everypar}, etc.~)}
+ at d assign_int=assign_toks+1
+ {user-defined integer ( \.{\\tolerance}, \.{\\day}, etc.~)}
+ at d assign_dimen=assign_int+1 {user-defined length ( \.{\\hsize}, etc.~)}
+ at d assign_glue=assign_dimen+1 {user-defined glue ( \.{\\baselineskip}, etc.~)}
+ at d assign_mu_glue=assign_glue+1 {user-defined muglue ( \.{\\thinmuskip}, etc.~)}
+ at d assign_font_dimen=assign_mu_glue+1
+ {user-defined font dimension ( \.{\\fontdimen} )}
+ at d assign_font_int=assign_font_dimen+1
+ {user-defined font integer ( \.{\\hyphenchar}, \.{\\skewchar} )}
+ at d assign_kinsoku=assign_font_int+1
+ {user-defined kinsoku character ( \.{\\prebreakpenalty},
+ \.{\\postbreakpenalty} )}
+ at d assign_inhibit_xsp_code=assign_kinsoku+1
+ {user-defined inhibit xsp character ( \.{\\inhibitxspcode} )}
+ at d set_kansuji_char=assign_inhibit_xsp_code+1
+ {user-defined kansuji character ( \.{\\kansujichar} )}
+ at d set_aux=set_kansuji_char+1
+ {specify state info ( \.{\\spacefactor}, \.{\\prevdepth} )}
+ at d set_prev_graf=set_aux+1 {specify state info ( \.{\\prevgraf} )}
+ at d set_page_dimen=set_prev_graf+1 {specify state info ( \.{\\pagegoal}, etc.~)}
+ at d set_page_int=set_page_dimen+1 {specify state info ( \.{\\deadcycles},
+ at z
+ at x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
+ at d set_box_dimen=83 {change dimension of box ( \.{\\wd}, \.{\\ht}, \.{\\dp} )}
+ at d set_shape=84 {specify fancy paragraph shape ( \.{\\parshape} )}
+ at y
+ at d set_box_dimen=set_page_int+1 {change dimension of box ( \.{\\wd}, \.{\\ht}, \.{\\dp} )}
+ at d set_shape=set_box_dimen+1 {specify fancy paragraph shape ( \.{\\parshape} )}
+ at z
+ at x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
+ at d def_code=85 {define a character code ( \.{\\catcode}, etc.~)}
+ at d def_family=86 {declare math fonts ( \.{\\textfont}, etc.~)}
+ at d set_font=87 {set current font ( font identifiers )}
+ at d def_font=88 {define a font file ( \.{\\font} )}
+ at d register=89 {internal register ( \.{\\count}, \.{\\dimen}, etc.~)}
+ at d max_internal=89 {the largest code that can follow \.{\\the}}
+ at d advance=90 {advance a register or parameter ( \.{\\advance} )}
+ at d multiply=91 {multiply a register or parameter ( \.{\\multiply} )}
+ at d divide=92 {divide a register or parameter ( \.{\\divide} )}
+ at d prefix=93 {qualify a definition ( \.{\\global}, \.{\\long}, \.{\\outer} )}
+ at y
+ at d def_code=set_shape+1 {define a character code ( \.{\\catcode}, etc.~)}
+ at d def_family=def_code+1 {declare math fonts ( \.{\\textfont}, etc.~)}
+ at d set_font=def_family+1 {set current font ( font identifiers )}
+ at d def_font=set_font+1 {define a font file ( \.{\\font} )}
+ at d def_jfont=def_font+1 {define a font file ( \.{\\jfont} )}
+ at d def_tfont=def_jfont+1 {define a font file ( \.{\\tfont} )}
+ at d register=def_tfont+1 {internal register ( \.{\\count}, \.{\\dimen}, etc.~)}
+ at d max_internal=register {the largest code that can follow \.{\\the}}
+ at d advance=max_internal+1 {advance a register or parameter ( \.{\\advance} )}
+ at d multiply=advance+1 {multiply a register or parameter ( \.{\\multiply} )}
+ at d divide=multiply+1 {divide a register or parameter ( \.{\\divide} )}
+ at d prefix=divide+1 {qualify a definition ( \.{\\global}, \.{\\long}, \.{\\outer} )}
+ at z
+ at x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
+ at d let=94 {assign a command code ( \.{\\let}, \.{\\futurelet} )}
+ at d shorthand_def=95 {code definition ( \.{\\chardef}, \.{\\countdef}, etc.~)}
+ {or \.{\\charsubdef}}
+ at d read_to_cs=96 {read into a control sequence ( \.{\\read} )}
+ at y
+ at d let=prefix+1 {assign a command code ( \.{\\let}, \.{\\futurelet} )}
+ at d shorthand_def=let+1 {code definition ( \.{\\chardef}, \.{\\countdef}, etc.~)}
+ {or \.{\\charsubdef}}
+ at d read_to_cs=shorthand_def+1 {read into a control sequence ( \.{\\read} )}
+ at z
+ at x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
+ at d def=97 {macro definition ( \.{\\def}, \.{\\gdef}, \.{\\xdef}, \.{\\edef} )}
+ at d set_box=98 {set a box ( \.{\\setbox} )}
+ at d hyph_data=99 {hyphenation data ( \.{\\hyphenation}, \.{\\patterns} )}
+ at d set_interaction=100 {define level of interaction ( \.{\\batchmode}, etc.~)}
+ at d max_command=100 {the largest command code seen at |big_switch|}
+ at y
+ at d def=read_to_cs+1 {macro definition ( \.{\\def}, \.{\\gdef}, \.{\\xdef}, \.{\\edef} )}
+ at d set_box=def+1 {set a box ( \.{\\setbox} )}
+ at d hyph_data=set_box+1 {hyphenation data ( \.{\\hyphenation}, \.{\\patterns} )}
+ at d set_interaction=hyph_data+1 {define level of interaction ( \.{\\batchmode}, etc.~)}
+ at d set_auto_spacing=set_interaction+1 {set auto spacing mode
+ ( \.{\\autospacing}, \.{\\noautospacing}, \.{\\autoxspacing}, \.{\\noautoxspacing} )}
+ at d partoken_name=set_auto_spacing+1 {set |par_token| name}
+ at d max_command=partoken_name {the largest command code seen at |big_switch|}
+ at z
+
+ at x [16.212] l.4437 - pTeX: last_jchr, direction, adjust direction
+@<Types...@>=
+@!list_state_record=record@!mode_field:-mmode..mmode;@+
+ @!head_field,@!tail_field: pointer;
+ at y
+@<Types...@>=
+@!list_state_record=record@!mode_field:-mmode..mmode;@+
+ @!dir_field,@!adj_dir_field: -dir_yoko..dir_yoko;
+ @!pdisp_field: scaled;
+ @!head_field,@!tail_field,@!pnode_field,@!last_jchr_field: pointer;
+ @!disp_called_field: boolean;
+ @!inhibit_glue_flag_field: integer;
+ at z
+
+ at x [16.213] l.4445 - pTeX: last_jchr, direction, adjust_dir, prev_{node,disp}
+ at d head==cur_list.head_field {header node of current list}
+ at d tail==cur_list.tail_field {final node on current list}
+ at y
+ at d direction==cur_list.dir_field {current direction}
+ at d adjust_dir==cur_list.adj_dir_field {current adjust direction}
+ at d head==cur_list.head_field {header node of current list}
+ at d tail==cur_list.tail_field {final node on current list}
+ at d prev_node==cur_list.pnode_field {previous to last |disp_node|}
+ at d prev_disp==cur_list.pdisp_field {displacemant at |prev_node|}
+ at d last_jchr==cur_list.last_jchr_field {final jchar node on current list}
+ at d disp_called==cur_list.disp_called_field {is a |disp_node| present in the current list?}
+ at d inhibit_glue_flag==cur_list.inhibit_glue_flag_field {is \.{\\inhibitglue} specified at the current list?}
+ at z
+
+ at x [16.214] l.4464 - pTeX: prev_append: disp_node
+ at d tail_append(#)==begin link(tail):=#; tail:=link(tail);
+ end
+ at y
+ at d tail_append(#)==begin link(tail):=#; tail:=link(tail);
+ end
+ at d prev_append(#)==begin link(prev_node):=#;
+ link(link(prev_node)):=tail; prev_node:=link(prev_node);
+ end
+ at z
+
+ at x [16.215] l.4477 - pTeX: last_jchr, direction, adjust_dir, prev_node
+mode:=vmode; head:=contrib_head; tail:=contrib_head;
+ at y
+mode:=vmode; head:=contrib_head; tail:=contrib_head; prev_node:=tail;
+direction:=dir_yoko; adjust_dir:=direction; prev_disp:=0; last_jchr:=null;
+disp_called:=false;
+ at z
+
+ at x [16.216] l.4496 - pTeX: last_jchr, displacement.
+incr(nest_ptr); head:=get_avail; tail:=head; prev_graf:=0; mode_line:=line;
+ at y
+incr(nest_ptr); head:=new_null_box; tail:=head; prev_node:=tail;
+prev_graf:=0; prev_disp:=0; disp_called:=false; last_jchr:=null; mode_line:=line;
+ at z
+
+ at x [16.217] l.4504 - pTeX: pop_nest last_jchr
+ at p procedure pop_nest; {leave a semantic level, re-enter the old}
+begin free_avail(head); decr(nest_ptr); cur_list:=nest[nest_ptr];
+end;
+ at y
+ at p procedure pop_nest; {leave a semantic level, re-enter the old}
+begin
+fast_delete_glue_ref(space_ptr(head)); fast_delete_glue_ref(xspace_ptr(head));
+free_node(head,box_node_size); decr(nest_ptr); cur_list:=nest[nest_ptr];
+end;
+ at z
+
+ at x [16.218] l.4521 - pTeX: show_activities : direction
+ print_nl("### "); print_mode(m);
+ at y
+ print_nl("### "); print_direction(nest[p].dir_field);
+ print(", "); print_mode(m);
+ at z
+
+ at x [17.224] l.4711 - pTeX: kanji_skip_code xkanji_skip_code, jfm_skip
+ at d thin_mu_skip_code=15 {thin space in math formula}
+ at d med_mu_skip_code=16 {medium space in math formula}
+ at d thick_mu_skip_code=17 {thick space in math formula}
+ at d glue_pars=18 {total number of glue parameters}
+ at y
+ at d kanji_skip_code=15 {between kanji-kanji space}
+ at d xkanji_skip_code=16 {between latin-kanji or kanji-latin space}
+ at d thin_mu_skip_code=17 {thin space in math formula}
+ at d med_mu_skip_code=18 {medium space in math formula}
+ at d thick_mu_skip_code=19 {thick space in math formula}
+ at d jfm_skip=20 {space refer from JFM}
+ at d glue_pars=21 {total number of glue parameters}
+ at z
+
+ at x [17.224] l.4739 - kanji_skip, xkanji_skip
+ at d thick_mu_skip==glue_par(thick_mu_skip_code)
+ at y
+ at d thick_mu_skip==glue_par(thick_mu_skip_code)
+ at d kanji_skip==glue_par(kanji_skip_code)
+ at d xkanji_skip==glue_par(xkanji_skip_code)
+ at z
+
+ at x [17.225] l.4767 - pTeX: kanji_skip_code xkanji_skip_code
+thick_mu_skip_code: print_esc("thickmuskip");
+othercases print("[unknown glue parameter!]")
+ at y
+thick_mu_skip_code: print_esc("thickmuskip");
+kanji_skip_code: print_esc("kanjiskip");
+xkanji_skip_code: print_esc("xkanjiskip");
+jfm_skip: print("refer from jfm");
+othercases print("[unknown glue parameter!]")
+ at z
+
+ at x [17.226] l.4813 - pTeX: kanji_skip_code xkanji_skip_code
+primitive("thickmuskip",assign_mu_glue,glue_base+thick_mu_skip_code);@/
+@!@:thick_mu_skip_}{\.{\\thickmuskip} primitive@>
+ at y
+primitive("thickmuskip",assign_mu_glue,glue_base+thick_mu_skip_code);@/
+@!@:thick_mu_skip_}{\.{\\thickmuskip} primitive@>
+primitive("kanjiskip",assign_glue,glue_base+kanji_skip_code);@/
+@!@:kanji_skip_}{\.{\\kanjiskip} primitive@>
+primitive("xkanjiskip",assign_glue,glue_base+xkanji_skip_code);@/
+@!@:xkanji_skip_}{\.{\\xkanjiskip} primitive@>
+ at z
+
+ at x [17.230] l.4867 - pTeX: cat_code_size, cur_jfont_loc, auto_spacing, auto_xspacing, inhibit_xsp_code, cur_tfont_loc
+ at d math_font_base=cur_font_loc+1 {table of 48 math font numbers}
+ at d cat_code_base=math_font_base+48
+ {table of 256 command codes (the ``catcodes'')}
+ at d lc_code_base=cat_code_base+256 {table of 256 lowercase mappings}
+ at y
+ at d math_font_base=cur_font_loc+1 {table of 48 math font numbers}
+ at d cur_jfont_loc=math_font_base+48
+ at d cur_tfont_loc=cur_jfont_loc+1
+ at d auto_spacing_code=cur_tfont_loc+1
+ at d auto_xspacing_code=auto_spacing_code+1
+ at d cat_code_base=auto_xspacing_code+1
+ {table of 256 command codes (the ``catcodes'')}
+ at d kcat_code_base=cat_code_base+256
+ {table of 256 command codes for the wchar's catcodes }
+ at d auto_xsp_code_base=kcat_code_base+256 {table of 256 auto spacer flag}
+ at d inhibit_xsp_code_base=auto_xsp_code_base+256
+ at d kinsoku_base=inhibit_xsp_code_base+1024 {table of 1024 kinsoku mappings}
+ at d kansuji_base=kinsoku_base+1024 {table of 10 kansuji mappings}
+ at d lc_code_base=kansuji_base+10 {table of 256 lowercase mappings}
+ at z
+
+ at x [17.230] l.4900 - pTeX:
+ at d char_sub_code(#)==equiv(char_sub_code_base+#)
+ {Note: |char_sub_code(c)| is the true substitution info plus |min_halfword|}
+ at y
+ at d char_sub_code(#)==equiv(char_sub_code_base+#)
+ {Note: |char_sub_code(c)| is the true substitution info plus |min_halfword|}
+@#
+ at d cur_jfont==equiv(cur_jfont_loc) { \pTeX }
+ at d cur_tfont==equiv(cur_tfont_loc) { \pTeX }
+ at d auto_spacing==equiv(auto_spacing_code)
+ at d auto_xspacing==equiv(auto_xspacing_code)
+ at d kcat_code(#)==equiv(kcat_code_base+#)
+ at d auto_xsp_code(#)==equiv(auto_xsp_code_base+#)
+ at d inhibit_xsp_type(#)==eq_type(inhibit_xsp_code_base+#)
+ at d inhibit_xsp_code(#)==equiv(inhibit_xsp_code_base+#)
+ at d kinsoku_type(#)==eq_type(kinsoku_base+#)
+ at d kinsoku_code(#)==equiv(kinsoku_base+#)
+ at d kansuji_char(#)==equiv(kansuji_base+#)
+ at z
+
+ at x [17.232] l.4959 - pTeX: initialize cat_code, cur_jfont, cur_tfont
+cur_font:=null_font; eq_type(cur_font_loc):=data;
+eq_level(cur_font_loc):=level_one;@/
+ at y
+cur_font:=null_font; eq_type(cur_font_loc):=data;
+eq_level(cur_font_loc):=level_one;@/
+cur_jfont:=null_font; eq_type(cur_jfont_loc):=data;
+eq_level(cur_jfont_loc):=level_one;@/
+cur_tfont:=null_font; eq_type(cur_tfont_loc):=data;
+eq_level(cur_tfont_loc):=level_one;@/
+ at z
+
+ at x [17.232] l.4965 - pTeX: initialize cat_code, cur_jfont, cur_tfont
+for k:=0 to 255 do
+ begin cat_code(k):=other_char; math_code(k):=hi(k); sf_code(k):=1000;
+ end;
+ at y
+eqtb[auto_spacing_code]:=eqtb[cat_code_base];
+eqtb[auto_xspacing_code]:=eqtb[cat_code_base];
+for k:=0 to 255 do
+ begin cat_code(k):=other_char; kcat_code(k):=other_kchar;
+ math_code(k):=hi(k); sf_code(k):=1000;
+ auto_xsp_code(k):=0;
+ end;
+for k:=0 to 1023 do
+ begin inhibit_xsp_code(k):=0; inhibit_xsp_type(k):=0;
+ kinsoku_code(k):=0; kinsoku_type(k):=0;
+ end;
+ at z
+ at x [17.232] l.4971 - pTeX: initialize cat_code, cur_jfont, cur_tfont
+for k:="0" to "9" do math_code(k):=hi(k+var_code);
+for k:="A" to "Z" do
+ begin cat_code(k):=letter; cat_code(k+"a"-"A"):=letter;@/
+ math_code(k):=hi(k+var_code+@"100);
+ math_code(k+"a"-"A"):=hi(k+"a"-"A"+var_code+@"100);@/
+ lc_code(k):=k+"a"-"A"; lc_code(k+"a"-"A"):=k+"a"-"A";@/
+ uc_code(k):=k; uc_code(k+"a"-"A"):=k;@/
+ sf_code(k):=999;
+ end;
+ at y
+for k:="0" to "9" do
+ begin math_code(k):=hi(k+var_code);
+ auto_xsp_code(k):=3;
+ end;
+kansuji_char(0):=toDVI(fromJIS(@"213B));
+kansuji_char(1):=toDVI(fromJIS(@"306C));
+kansuji_char(2):=toDVI(fromJIS(@"4673));
+kansuji_char(3):=toDVI(fromJIS(@"3B30));
+kansuji_char(4):=toDVI(fromJIS(@"3B4D));
+kansuji_char(5):=toDVI(fromJIS(@"385E));
+kansuji_char(6):=toDVI(fromJIS(@"4F3B));
+kansuji_char(7):=toDVI(fromJIS(@"3C37));
+kansuji_char(8):=toDVI(fromJIS(@"482C));
+kansuji_char(9):=toDVI(fromJIS(@"3665));
+for k:="A" to "Z" do
+ begin cat_code(k):=letter; cat_code(k+"a"-"A"):=letter;@/
+ math_code(k):=hi(k+var_code+@"100);
+ math_code(k+"a"-"A"):=hi(k+"a"-"A"+var_code+@"100);@/
+ lc_code(k):=k+"a"-"A"; lc_code(k+"a"-"A"):=k+"a"-"A";@/
+ uc_code(k):=k; uc_code(k+"a"-"A"):=k;@/
+ auto_xsp_code(k):=3; auto_xsp_code(k+"a"-"A"):=3;@/
+ sf_code(k):=999;
+ end;
+ at t\hskip10pt@>kcat_code(@"20+1):=other_kchar; {1 ku}
+ at t\hskip10pt@>kcat_code(@"20+2):=other_kchar; {2 ku}
+ at +@t\1@>for k:=3 to 6 do kcat_code(@"20+k):=kana; {3 ku ... 6 ku}
+ at +@t\1@>for k:=7 to 8 do kcat_code(@"20+k):=other_kchar; {7 ku ... 8 ku}
+ at +@t\1@>for k:=16 to 84 do kcat_code(@"20+k):=kanji; {16 ku ... 84 ku}
+{ $\.{@@"20}+|k| = |kcatcodekey|(|fromKUTEN|(|HILO|(k,1))$ }
+ at z
+
+ at x
+@ @<Show the halfword code in |eqtb[n]|@>=
+if n<math_code_base then
+ begin if n<lc_code_base then
+ begin print_esc("catcode"); print_int(n-cat_code_base);
+ end
+ at y
+@ @<Show the halfword code in |eqtb[n]|@>=
+if n<math_code_base then
+ begin if n<kcat_code_base then
+ begin print_esc("catcode"); print_int(n-cat_code_base);
+ end
+ else if n<auto_xsp_code_base then
+ begin print_esc("kcatcode"); print_int(n-kcat_code_base);
+ end
+ else if n<inhibit_xsp_code_base then
+ begin print_esc("xspcode"); print_int(n-auto_xsp_code_base);
+ end
+ else if n<kinsoku_base then
+ begin print("inhibitxspcode table "); print_int(n-inhibit_xsp_code_base);
+ print(", type=");
+ case eq_type(n) of
+ 0: print("both"); { |inhibit_both| }
+ 1: print("before"); { |inhibit_previous| }
+ 2: print("after"); { |inhibit_after| }
+ 3: print("none"); { |inhibit_none| }
+ 4: print("unused"); { |inhibit_unused| }
+ end; {there are no other cases}
+ print(", code");
+ end
+ else if n<kansuji_base then
+ begin print("kinsoku table "); print_int(n-kinsoku_base);
+ print(", type=");
+ case eq_type(n) of
+ 0: print("no");
+ 1: print("pre"); { |pre_break_penalty_code| }
+ 2: print("post"); { |post_break_penalty_code| }
+ 3: print("unused"); { |kinsoku_unused_code| }
+ end; {there are no other cases}
+ print(", code");
+ end
+ else if n<lc_code_base then
+ begin print_esc("kansujichar"); print_int(n-kansuji_base);
+ end
+ at z
+
+ at x [17.236] l.5092 - pTeX: cur_jfam_code, jchr_widow_penalty
+ at d cur_fam_code=44 {current family}
+ at d escape_char_code=45 {escape character for token output}
+ at d default_hyphen_char_code=46 {value of \.{\\hyphenchar} when a font is loaded}
+ at d default_skew_char_code=47 {value of \.{\\skewchar} when a font is loaded}
+ at d end_line_char_code=48 {character placed at the right end of the buffer}
+ at d new_line_char_code=49 {character that prints as |print_ln|}
+ at d language_code=50 {current hyphenation table}
+ at d left_hyphen_min_code=51 {minimum left hyphenation fragment size}
+ at d right_hyphen_min_code=52 {minimum right hyphenation fragment size}
+ at d holding_inserts_code=53 {do not remove insertion nodes from \.{\\box255}}
+ at d error_context_lines_code=54 {maximum intermediate line pairs shown}
+ at d tex_int_pars=55 {total number of \TeX's integer parameters}
+ at y
+ at d cur_fam_code=44 {current family}
+ at d cur_jfam_code=45 {current kanji family}
+ at d escape_char_code=46 {escape character for token output}
+ at d default_hyphen_char_code=47 {value of \.{\\hyphenchar} when a font is loaded}
+ at d default_skew_char_code=48 {value of \.{\\skewchar} when a font is loaded}
+ at d end_line_char_code=49 {character placed at the right end of the buffer}
+ at d new_line_char_code=50 {character that prints as |print_ln|}
+ at d language_code=51 {current hyphenation table}
+ at d left_hyphen_min_code=52 {minimum left hyphenation fragment size}
+ at d right_hyphen_min_code=53 {minimum right hyphenation fragment size}
+ at d holding_inserts_code=54 {do not remove insertion nodes from \.{\\box255}}
+ at d error_context_lines_code=55 {maximum intermediate line pairs shown}
+ at d jchr_widow_penalty_code=56
+ {penalty for creating a widow KANJI character line}
+ at d text_baseline_shift_factor_code=57
+ at d script_baseline_shift_factor_code=58
+ at d scriptscript_baseline_shift_factor_code=59
+ at d ptex_lineend_code=60
+ at d ptex_tracing_fonts_code=61
+ at d tex_int_pars=62 {total number of \TeX's integer parameters}
+ at z
+
+ at x [17.236] l.5167 - pTeX: cur_jfam, |jchr_widow_penalty|
+ at d cur_fam==int_par(cur_fam_code)
+ at d escape_char==int_par(escape_char_code)
+ at y
+ at d cur_fam==int_par(cur_fam_code)
+ at d cur_jfam==int_par(cur_jfam_code)
+ at d escape_char==int_par(escape_char_code)
+ at d jchr_widow_penalty==int_par(jchr_widow_penalty_code)
+ at d text_baseline_shift_factor==int_par(text_baseline_shift_factor_code)
+ at d script_baseline_shift_factor==int_par(script_baseline_shift_factor_code)
+ at d scriptscript_baseline_shift_factor==int_par(scriptscript_baseline_shift_factor_code)
+ at d ptex_lineend==int_par(ptex_lineend_code)
+ at d ptex_tracing_fonts==int_par(ptex_tracing_fonts_code)
+ at z
+
+ at x [17.237] l.5244 - pTeX: cur_jfam_code, jchr_window_penalty_code
+new_line_char_code:print_esc("newlinechar");
+ at y
+new_line_char_code:print_esc("newlinechar");
+cur_jfam_code:print_esc("jfam");
+jchr_widow_penalty_code:print_esc("jcharwidowpenalty");
+text_baseline_shift_factor_code:print_esc("textbaselineshiftfactor");
+script_baseline_shift_factor_code:print_esc("scriptbaselineshiftfactor");
+scriptscript_baseline_shift_factor_code:print_esc("scriptscriptbaselineshiftfactor");
+ptex_lineend_code:print_esc("ptexlineendmode");
+ptex_tracing_fonts_code:print_esc("ptextracingfonts");
+ at z
+
+ at x [17.238] l.5365 - pTeX: cur_jfam_code, jchr_window_penalty_code
+primitive("newlinechar",assign_int,int_base+new_line_char_code);@/
+@!@:new_line_char_}{\.{\\newlinechar} primitive@>
+ at y
+primitive("newlinechar",assign_int,int_base+new_line_char_code);@/
+@!@:new_line_char_}{\.{\\newlinechar} primitive@>
+primitive("jfam",assign_int,int_base+cur_jfam_code);@/
+@!@:cur_jfam_}{\.{\\jfam} primitive@>
+primitive("jcharwidowpenalty",assign_int,int_base+jchr_widow_penalty_code);@/
+@!@:jchr_widow_penalty}{\.{\\jcharwidowpenalty} primitive@>
+primitive("textbaselineshiftfactor",assign_int,int_base+text_baseline_shift_factor_code);@/
+@!@:text_baseline_shift_factor}{\.{\\textbaselineshiftfactor} primitive@>
+primitive("scriptbaselineshiftfactor",assign_int,int_base+script_baseline_shift_factor_code);@/
+@!@:script_baseline_shift_factor}{\.{\\scriptbaselineshiftfactor} primitive@>
+primitive("scriptscriptbaselineshiftfactor",assign_int,int_base+scriptscript_baseline_shift_factor_code);@/
+@!@:scriptscript_baseline_shift_factor}{\.{\\scriptscriptbaselineshiftfactor} primitive@>
+primitive("ptexlineendmode",assign_int,int_base+ptex_lineend_code);@/
+@!@:ptex_lineend_mode_}{\.{\\ptexlineendmode} primitive@>
+primitive("ptextracingfonts",assign_int,int_base+ptex_tracing_fonts_code);@/
+@!@:ptex_tracing_fonts_}{\.{\\ptextracingfonts} primitive@>
+ at z
+
+ at x [17.247] l.5490 - pTeX: kinsoku, t_baseline_shift, y_baseline_shift
+ at d h_offset_code=18 {amount of horizontal offset when shipping pages out}
+ at d v_offset_code=19 {amount of vertical offset when shipping pages out}
+ at d emergency_stretch_code=20 {reduces badnesses on final pass of line-breaking}
+ at d dimen_pars=21 {total number of dimension parameters}
+ at d scaled_base=dimen_base+dimen_pars
+ {table of 256 user-defined \.{\\dimen} registers}
+ at d eqtb_size=scaled_base+255 {largest subscript of |eqtb|}
+ at y
+ at d h_offset_code=18 {amount of horizontal offset when shipping pages out}
+ at d v_offset_code=19 {amount of vertical offset when shipping pages out}
+ at d emergency_stretch_code=20 {reduces badnesses on final pass of line-breaking}
+ at d t_baseline_shift_code=21 {shift amount when mixing TATE-kumi and Alphabet}
+ at d y_baseline_shift_code=22 {shift amount when mixing YOKO-kumi and Alphabet}
+ at d dimen_pars=23 {total number of dimension parameters}
+ at d scaled_base=dimen_base+dimen_pars
+ {table of 256 user-defined \.{\\dimen} registers}
+ at d kinsoku_penalty_base=scaled_base+256 {table of 256 kinsoku registers}
+ at d eqtb_size=kinsoku_penalty_base+255 {largest subscript of |eqtb|}
+ at z
+
+ at x l.5498 - pTeX: kinsoku, t_baseline_shift, y_baseline_shift
+ at d dimen(#)==eqtb[scaled_base+#].sc
+ at d dimen_par(#)==eqtb[dimen_base+#].sc {a scaled quantity}
+ at y
+ at d dimen(#)==eqtb[scaled_base+#].sc
+ at d dimen_par(#)==eqtb[dimen_base+#].sc {a scaled quantity}
+ at d kinsoku_penalty(#)==eqtb[kinsoku_penalty_base+#].int
+ at z
+
+ at x l.5518 - pTeX:
+ at d h_offset==dimen_par(h_offset_code)
+ at d v_offset==dimen_par(v_offset_code)
+ at y
+ at d h_offset==dimen_par(h_offset_code)
+ at d v_offset==dimen_par(v_offset_code)
+ at d t_baseline_shift==dimen_par(t_baseline_shift_code)
+ at d y_baseline_shift==dimen_par(y_baseline_shift_code)
+ at z
+
+ at x l.5542 - pTeX:
+h_offset_code:print_esc("hoffset");
+v_offset_code:print_esc("voffset");
+emergency_stretch_code:print_esc("emergencystretch");
+othercases print("[unknown dimen parameter!]")
+ at y
+h_offset_code:print_esc("hoffset");
+v_offset_code:print_esc("voffset");
+t_baseline_shift_code:print_esc("tbaselineshift");
+y_baseline_shift_code:print_esc("ybaselineshift");
+emergency_stretch_code:print_esc("emergencystretch");
+othercases print("[unknown dimen parameter!]")
+ at z
+
+ at x [17.248] l.5588 - pTeX: rotate offset
+primitive("hoffset",assign_dimen,dimen_base+h_offset_code);@/
+@!@:h_offset_}{\.{\\hoffset} primitive@>
+primitive("voffset",assign_dimen,dimen_base+v_offset_code);@/
+@!@:v_offset_}{\.{\\voffset} primitive@>
+ at y
+primitive("hoffset",assign_dimen,dimen_base+h_offset_code);@/
+@!@:h_offset_}{\.{\\hoffset} primitive@>
+primitive("voffset",assign_dimen,dimen_base+v_offset_code);@/
+@!@:v_offset_}{\.{\\voffset} primitive@>
+primitive("tbaselineshift",assign_dimen,dimen_base+t_baseline_shift_code);@/
+@!@:t_baseline_shift_}{\.{\\tbaselineshift} primitive@>
+primitive("ybaselineshift",assign_dimen,dimen_base+y_baseline_shift_code);@/
+@!@:y_baseline_shift_}{\.{\\ybaselineshift} primitive@>
+ at z
+
+ at x [17.252] l.5622 - pTeX: show eqtb
+else if n<=eqtb_size then @<Show equivalent |n|, in region 6@>
+else print_char("?"); {this can't happen either}
+end;
+tats
+ at y
+else if n<kinsoku_penalty_base then @<Show equivalent |n|, in region 6@>
+else if n<=eqtb_size then begin
+ print("kinsoku table "); print_int(n-kinsoku_penalty_base);
+ print(", penalty="); print_int(eqtb[n].int);
+ end
+else print_char("?"); {this can't happen either}
+end;
+tats
+ at z
+
+ at x [18] buffer2
+for k:=j to j+l-1 do append_char(buffer[k]);
+ at y
+for k:=j to j+l-1 do append_char(buffer2[k]*@"100+buffer[k]);
+ at z
+
+ at x [18.???] l.???? - pTeX multibyte control symbol
+procedure print_cs(@!p:integer); {prints a purported control sequence}
+ at y
+procedure print_cs(@!p:integer); {prints a purported control sequence}
+var j, l:pool_pointer; @!cat:0..max_char_code;
+ at z
+
+ at x [18.???]
+else begin print_esc(text(p));
+ print_char(" ");
+ end;
+ at y
+else begin l:=text(p);
+ print_esc(l); j:=str_start[l]; l:=str_start[l+1];
+ if l>j+1 then begin
+ if (str_pool[j]>=@"100)and(l-j=multistrlenshort(str_pool, l, j)) then
+ begin cat:=kcat_code(kcatcodekey(fromBUFFshort(str_pool, l, j)));
+ if (cat<>other_kchar) then print_char(" ");
+ end
+ else print_char(" "); end
+ else print_char(" ");
+ end;
+ at z
+
+ at x [18.???] pTeX: ensure buffer2[]=0 in primitive
+ for j:=0 to l-1 do buffer[j]:=so(str_pool[k+j]);
+ at y
+ for j:=0 to l-1 do begin
+ buffer[j]:=Lo(so(str_pool[k+j])); buffer2[j]:=Hi(so(str_pool[k+j])); end;
+ at z
+
+ at x [18.265] l.5903 - pTeX: \jfont \tfont
+primitive("font",def_font,0);@/
+@!@:font_}{\.{\\font} primitive@>
+ at y
+primitive("font",def_font,0);@/
+@!@:font_}{\.{\\font} primitive@>
+primitive("jfont",def_jfont,0);@/
+@!@:jfont_}{\.{\\jfont} primitive@>
+primitive("tfont",def_tfont,0);@/
+@!@:tfont_}{\.{\\tfont} primitive@>
+ at z
+
+ at x [18.266] l.5979 - pTeX: \jfont, \tfont
+def_font: print_esc("font");
+ at y
+def_font: print_esc("font");
+def_jfont: print_esc("jfont");
+def_tfont: print_esc("tfont");
+ at z
+
+ at x [18.???] pTeX: \ptextracingfonts based on pdfTeX \pdftracingfonts
+@<Print the font identifier for |font(p)|@>=
+print_esc(font_id_text(font(p)))
+ at y
+@<Print the font identifier for |font(p)|@>=
+begin
+ print_esc(font_id_text(font(p)));
+ if ptex_tracing_fonts > 0 then begin
+ print(" (");
+ print_font_name_and_size(font(p));
+ if ptex_tracing_fonts > 1 then begin
+ print_font_dir_and_enc(font(p));
+ end;
+ print(")");
+ end;
+end;
+
+@ @<Declare the pTeX-specific |print_font_...| procedures@>=
+procedure print_font_name_and_size(f:internal_font_number);
+begin
+ print(font_name[f]);
+ if font_size[f]<>font_dsize[f] then begin
+ print("@@");
+ print_scaled(font_size[f]);
+ print("pt");
+ end;
+end;
+@#
+procedure print_font_dir_and_enc(f:internal_font_number);
+begin
+ if font_dir[f]=dir_tate then print("/TATE")
+ else if font_dir[f]=dir_yoko then print("/YOKO");
+ if font_enc[f]=2 then print("+Unicode")
+ else if font_enc[f]=1 then print("+JIS");
+end;
+ at z
+
+ at x [20.289] l.6387 - pTeX: cs_token_flag
+ at d cs_token_flag==@'7777 {amount added to the |eqtb| location in a
+ token that stands for a control sequence; is a multiple of~256, less~1}
+ at y
+ at d cs_token_flag==@"FFFF {amount added to the |eqtb| location in a
+ token that stands for a control sequence; is a multiple of~256, less~1}
+ at z
+
+ at x [20.293] l.6496 - pTeX: show_token_list
+@ @<Display token |p|...@>=
+if (p<hi_mem_min) or (p>mem_end) then
+ begin print_esc("CLOBBERED."); return;
+ at .CLOBBERED@>
+ end;
+if info(p)>=cs_token_flag then print_cs(info(p)-cs_token_flag)
+else begin m:=info(p) div @'400; c:=info(p) mod @'400;
+ if info(p)<0 then print_esc("BAD.")
+ at .BAD@>
+ else @<Display the token $(|m|,|c|)$@>;
+ end
+ at y
+@ @<Display token |p|...@>=
+if (p<hi_mem_min) or (p>mem_end) then
+ begin print_esc("CLOBBERED."); return;
+ at .CLOBBERED@>
+ end;
+if info(p)>=cs_token_flag then print_cs(info(p)-cs_token_flag) {|wchar_token|}
+else begin
+ if check_kanji(info(p)) then {|wchar_token|}
+ begin m:=kcat_code(kcatcodekey(info(p))); c:=info(p);
+ end
+ else begin m:=Hi(info(p)); c:=Lo(info(p));
+ end;
+ if (m<kanji)and(c>256) then print_esc("BAD.")
+ at .BAD@>
+ else @<Display the token $(|m|,|c|)$@>;
+end
+ at z
+
+ at x [20.294] l.6512 - pTeX: show_token_list
+@<Display the token ...@>=
+case m of
+left_brace,right_brace,math_shift,tab_mark,sup_mark,sub_mark,spacer,
+ letter,other_char: print(c);
+ at y
+@<Display the token ...@>=
+case m of
+kanji,kana,other_kchar: print_kanji(KANJI(c));
+left_brace,right_brace,math_shift,tab_mark,sup_mark,sub_mark,spacer,
+ letter,other_char: print(c);
+ at z
+
+ at x [21.298] l.6632 - pTeX: print KANJI
+other_char: chr_cmd("the character ");
+ at y
+other_char: chr_cmd("the character ");
+kanji,kana,other_kchar: begin print("kanji character ");
+ print_kanji(KANJI(chr_code)); end;
+ at z
+
+ at x [22.303] l.6726 - pTeX: state mid_kanji
+1) |state=mid_line| is the normal state.\cr
+2) |state=skip_blanks| is like |mid_line|, but blanks are ignored.\cr
+3) |state=new_line| is the state at the beginning of a line.\cr}}$$
+ at y
+1) |state=mid_line| is the normal state.\cr
+2) |state=mid_kanji| is like |mid_line|, and internal KANJI string.\cr
+3) |state=skip_blanks| is like |mid_line|, but blanks are ignored.\cr
+4) |state=skip_blanks_kanji| is like |mid_kanji|, but blanks are ignored.\cr
+5) |state=new_line| is the state at the beginning of a line.\cr}}$$
+ at z
+
+ at x
+ignored; after this case is processed, the next value of |state| will
+be |skip_blanks|.
+ at y
+ignored; after this case is processed, the next value of |state| will
+be |skip_blanks|.
+
+If \.{\\ptexlineendmode} is odd, the |state| become |skip_blanks_kanji|
+after a control word which ends with a Japanese character. This is
+similar to |skip_blanks|, but the |state| will be |mid_kanji| after
+|skip_blanks_kanji+left_brace| and |skip_blanks_kanji+right_brace|,
+instead of |mid_line|.
+ at z
+
+ at x [22.303] l.6736 - pTeX: state mid_kanji
+ at d mid_line=1 {|state| code when scanning a line of characters}
+ at d skip_blanks=2+max_char_code {|state| code when ignoring blanks}
+ at d new_line=3+max_char_code+max_char_code {|state| code at start of line}
+ at y
+ at d mid_line=1 {|state| code when scanning a line of characters}
+ at d mid_kanji=2+max_char_code {|state| code when scanning a line of characters}
+ at d skip_blanks=3+max_char_code+max_char_code {|state| code when ignoring blanks}
+ at d skip_blanks_kanji=4+max_char_code+max_char_code+max_char_code
+ {|state| code when ignoring blanks}
+ at d new_line=5+max_char_code+max_char_code+max_char_code+max_char_code
+ {|state| code at start of line}
+ at z
+
+ at x [22.311] l.6986 - pTeX: label
+ at p procedure show_context; {prints where the scanner is}
+label done;
+var old_setting:0..max_selector; {saved |selector| setting}
+ at y
+ at p procedure show_context; {prints where the scanner is}
+label done, done1;
+var old_setting:0..max_selector; {saved |selector| setting}
+@!s: pointer; {temporary pointer}
+ at z
+
+ at x [22.316] l.7110 - pTeX: init kcode_pos
+ at d begin_pseudoprint==
+ begin l:=tally; tally:=0; selector:=pseudo;
+ trick_count:=1000000;
+ end
+ at y
+ at d begin_pseudoprint==
+ begin l:=tally; tally:=0; selector:=pseudo; kcode_pos:=0;
+ trick_count:=1000000;
+ end
+ at z
+
+ at x [22.316] l.7114 - pTeX: kcode_pos
+ at d set_trick_count==
+ begin first_count:=tally;
+ trick_count:=tally+1+error_line-half_error_line;
+ if trick_count<error_line then trick_count:=error_line;
+ end
+ at y
+ at d set_trick_count==
+ begin first_count:=tally;
+ if (first_count>0)and(trick_buf2[(first_count-1)mod error_line]=1) then
+ incr(first_count);
+ trick_count:=first_count+1+error_line-half_error_line;
+ if trick_count<error_line then trick_count:=error_line;
+ end
+ at z
+
+ at x [22.317] l.7133 - pTeX: adjust kanji code pos
+for q:=p to first_count-1 do print_char(trick_buf[q mod error_line]);
+print_ln;
+for q:=1 to n do print_char(" "); {print |n| spaces to begin line~2}
+if m+n<=error_line then p:=first_count+m else p:=first_count+(error_line-n-3);
+ at y
+if trick_buf2[p mod error_line]=2 then
+ begin p:=p+1; n:=n-1;
+ end;
+for q:=p to first_count-1 do print_char(trick_buf[q mod error_line]);
+print_ln;
+for q:=1 to n do print_char(" "); {print |n| spaces to begin line~2}
+if m+n<=error_line then p:=first_count+m else p:=first_count+(error_line-n-3);
+if trick_buf2[(p-1) mod error_line]=1 then p:=p-1;
+ at z
+
+ at x pTeX: buffer
+if j>0 then for i:=start to j-1 do
+ begin if i=loc then set_trick_count;
+ print(buffer[i]);
+ end
+ at y
+if j>0 then begin
+ i:=start;
+ if (loc<=j-1)and(start<=loc) then begin
+ for i:=start to loc-1 do
+ if buffer2[i]>0 then
+ print_char(@"100*buffer2[i]+buffer[i]) else print(buffer[i]);
+ set_trick_count; print_unread_buffer_with_ptenc(loc,j);
+ end
+ else
+ for i:=start to j-1 do
+ if buffer2[i]>0 then
+ print_char(@"100*buffer2[i]+buffer[i]) else print(buffer[i]);
+ end
+ at z
+
+ at x [22.319] l.7157 - pTeX: adjust kanji code token
+@ @<Pseudoprint the token list@>=
+begin_pseudoprint;
+if token_type<macro then show_token_list(start,loc,100000)
+else show_token_list(link(start),loc,100000) {avoid reference count}
+ at y
+@ @<Pseudoprint the token list@>=
+begin_pseudoprint;
+if token_type<macro then
+ begin if (token_type=backed_up)and(loc<>null) then
+ begin if (link(start)=null)and(check_kanji(info(start))) then {|wchar_token|}
+ begin cur_input:=input_stack[base_ptr-1];
+ s:=get_avail; info(s):=Lo(info(loc));
+ cur_input:=input_stack[base_ptr];
+ link(start):=s;
+ show_token_list(start,loc,100000);
+ free_avail(s);link(start):=null;
+ goto done1;
+ end;
+ end;
+ show_token_list(start,loc,100000);
+ end
+else show_token_list(link(start),loc,100000); {avoid reference count}
+done1:
+ at z
+
+ at x [23.???] pTeX: init the input routines
+first:=buf_size; repeat buffer[first]:=0; decr(first); until first=0;
+ at y
+first:=buf_size; repeat buffer[first]:=0; buffer2[first]:=0; decr(first); until first=0;
+ at z
+
+
+ at x [24.341] l.7479 - pTeX: set last_chr
+@!cat:0..max_char_code; {|cat_code(cur_chr)|, usually}
+ at y
+@!cat:escape..max_char_code; {|cat_code(cur_chr)|, usually}
+@!l:0..buf_size; {temporary index into |buffer|}
+ at z
+
+ at x [24.343] l.7500 - pTeX: input external file
+@ @<Input from external file, |goto restart| if no input found@>=
+@^inner loop@>
+begin switch: if loc<=limit then {current line not yet finished}
+ begin cur_chr:=buffer[loc]; incr(loc);
+ reswitch: cur_cmd:=cat_code(cur_chr);
+ at y
+@ @<Input from external file, |goto restart| if no input found@>=
+@^inner loop@>
+begin switch: if loc<=limit then {current line not yet finished}
+ begin cur_chr:=buffer[loc]; incr(loc);
+ if multistrlen(ustringcast(buffer), limit+1, loc-1)=2 then
+ begin cur_chr:=fromBUFF(ustringcast(buffer), limit+1, loc-1);
+ cur_cmd:=kcat_code(kcatcodekey(cur_chr));
+ for l:=loc-1 to loc-2+multistrlen(ustringcast(buffer), limit+1, loc-1) do
+ buffer2[l]:=1;
+ incr(loc);
+ end
+ else reswitch: cur_cmd:=cat_code(cur_chr);
+ at z
+
+ at x [24.344] l.7535 - pTeX: ASCII-KANJI space handling
+ at d any_state_plus(#) == mid_line+#,skip_blanks+#,new_line+#
+ at y
+ at d any_state_plus(#) ==
+ mid_line+#,mid_kanji+#,skip_blanks+#,skip_blanks_kanji+#,new_line+#
+ at z
+
+ at x
+@ @<Cases where character is ignored@>=
+any_state_plus(ignore),skip_blanks+spacer,new_line+spacer
+ at y
+@ @<Cases where character is ignored@>=
+any_state_plus(ignore),skip_blanks+spacer,skip_blanks_kanji+spacer,new_line+spacer
+ at z
+
+ at x [24.347] l.7569 - pTeX: scaner
+@ @d add_delims_to(#)==#+math_shift,#+tab_mark,#+mac_param,
+ #+sub_mark,#+letter,#+other_char
+ at y
+@ @d add_delims_to(#)==#+math_shift,#+tab_mark,#+mac_param,
+ #+sub_mark,#+letter,#+other_char
+ at d all_jcode(#)==#+kanji,#+kana,#+other_kchar
+ at z
+
+ at x [24.347] l.7573 - pTeX: scaner
+mid_line+spacer:@<Enter |skip_blanks| state, emit a space@>;
+mid_line+car_ret:@<Finish line, emit a space@>;
+skip_blanks+car_ret,any_state_plus(comment):
+ @<Finish line, |goto switch|@>;
+new_line+car_ret:@<Finish line, emit a \.{\\par}@>;
+mid_line+left_brace: incr(align_state);
+skip_blanks+left_brace,new_line+left_brace: begin
+ state:=mid_line; incr(align_state);
+ end;
+mid_line+right_brace: decr(align_state);
+skip_blanks+right_brace,new_line+right_brace: begin
+ state:=mid_line; decr(align_state);
+ end;
+add_delims_to(skip_blanks),add_delims_to(new_line): state:=mid_line;
+ at y
+mid_kanji+spacer,mid_line+spacer:@<Enter |skip_blanks| state, emit a space@>;
+mid_line+car_ret:@<Finish line, emit a space@>;
+mid_kanji+car_ret: if skip_mode then @<Finish line, |goto switch|@>
+ else @<Finish line, emit a space@>;
+skip_blanks+car_ret,skip_blanks_kanji+car_ret,any_state_plus(comment):
+ @<Finish line, |goto switch|@>;
+new_line+car_ret:@<Finish line, emit a \.{\\par}@>;
+mid_line+left_brace: incr(align_state);
+mid_kanji+left_brace: begin incr(align_state);
+ if ((ptex_lineend div 4) mod 2)=1 then state:=mid_line;
+ end;
+skip_blanks+left_brace,new_line+left_brace: begin
+ state:=mid_line; incr(align_state);
+ end;
+skip_blanks_kanji+left_brace: begin
+ state:=mid_kanji; incr(align_state);
+ end;
+mid_line+right_brace: decr(align_state);
+mid_kanji+right_brace: begin decr(align_state);
+ if ((ptex_lineend div 4) mod 2)=1 then state:=mid_line;
+ end;
+skip_blanks+right_brace,new_line+right_brace: begin
+ state:=mid_line; decr(align_state);
+ end;
+skip_blanks_kanji+right_brace: begin
+ state:=mid_kanji; decr(align_state);
+ end;
+add_delims_to(skip_blanks),add_delims_to(skip_blanks_kanji),
+add_delims_to(new_line),add_delims_to(mid_kanji):
+ state:=mid_line;
+all_jcode(skip_blanks),all_jcode(skip_blanks_kanji),all_jcode(new_line),
+all_jcode(mid_line):
+ state:=mid_kanji;
+
+@ @<Global...@>=
+skip_mode:boolean;
+
+@ @<Set init...@>=
+skip_mode:=true;
+ at z
+
+ at x [24.354] l.7659 - pTeX: scan control sequence
+@<Scan a control...@>=
+begin if loc>limit then cur_cs:=null_cs {|state| is irrelevant in this case}
+else begin start_cs: k:=loc; cur_chr:=buffer[k]; cat:=cat_code(cur_chr);
+ incr(k);
+ if cat=letter then state:=skip_blanks
+ else if cat=spacer then state:=skip_blanks
+ else state:=mid_line;
+ if (cat=letter)and(k<=limit) then
+ @<Scan ahead in the buffer until finding a nonletter;
+ if an expanded code is encountered, reduce it
+ and |goto start_cs|; otherwise if a multiletter control
+ sequence is found, adjust |cur_cs| and |loc|, and
+ |goto found|@>
+ else @<If an expanded code is present, reduce it and |goto start_cs|@>;
+ cur_cs:=single_base+buffer[loc]; incr(loc);
+ end;
+found: cur_cmd:=eq_type(cur_cs); cur_chr:=equiv(cur_cs);
+if cur_cmd>=outer_call then check_outer_validity;
+end
+ at y
+@<Scan a control...@>=
+begin if loc>limit then cur_cs:=null_cs {|state| is irrelevant in this case}
+else begin k:=loc; cur_chr:=buffer[k]; incr(k);
+ if multistrlen(ustringcast(buffer), limit+1, k-1)=2 then
+ begin cat:=kcat_code(kcatcodekey(fromBUFF(ustringcast(buffer), limit+1, k-1)));
+ for l:=k-1 to k-2+multistrlen(ustringcast(buffer), limit+1, k-1) do
+ buffer2[l]:=1;
+ incr(k);
+ end
+ else cat:=cat_code(cur_chr);
+start_cs:
+ if cat=letter then state:=skip_blanks
+ else if (cat=kanji)or(cat=kana) then
+ begin if (ptex_lineend mod 2)=0 then state:=skip_blanks_kanji
+ else state:=skip_blanks end
+ else if cat=spacer then state:=skip_blanks
+ else if cat=other_kchar then
+ begin if ((ptex_lineend div 2) mod 2)=0 then state:=mid_kanji
+ else state:=mid_line end
+ else state:=mid_line;
+ if cat=other_kchar then
+ begin cur_cs:=id_lookup(loc,k-loc); loc:=k; goto found;
+ end
+ else if ((cat=letter)or(cat=kanji)or(cat=kana))and(k<=limit) then
+ @<Scan ahead in the buffer until finding a nonletter;
+ if an expanded code is encountered, reduce it
+ and |goto start_cs|; otherwise if a multiletter control
+ sequence is found, adjust |cur_cs| and |loc|, and
+ |goto found|@>
+ else @<If an expanded code is present, reduce it and |goto start_cs|@>;
+ {single-letter control sequence}
+ if (cat=kanji)or(cat=kana) then
+ begin cur_cs:=id_lookup(loc,k-loc); loc:=k; goto found;
+ end
+ else begin cur_cs:=single_base+buffer[loc]; incr(loc); end;
+ end;
+found: cur_cmd:=eq_type(cur_cs); cur_chr:=equiv(cur_cs);
+if cur_cmd>=outer_call then check_outer_validity;
+end
+ at z
+
+ at x
+@<If an expanded...@>=
+begin if buffer[k]=cur_chr then @+if cat=sup_mark then @+if k<limit then
+ begin c:=buffer[k+1]; @+if c<@'200 then {yes, one is indeed present}
+ begin d:=2;
+ if is_hex(c) then @+if k+2<=limit then
+ begin cc:=buffer[k+2]; @+if is_hex(cc) then incr(d);
+ end;
+ if d>2 then
+ begin hex_to_cur_chr; buffer[k-1]:=cur_chr;
+ end
+ else if c<@'100 then buffer[k-1]:=c+@'100
+ else buffer[k-1]:=c-@'100;
+ limit:=limit-d; first:=first-d;
+ while k<=limit do
+ begin buffer[k]:=buffer[k+d]; incr(k);
+ end;
+ goto start_cs;
+ end;
+ end;
+end
+ at y
+@<If an expanded...@>=
+begin if buffer[k]=cur_chr then @+if cat=sup_mark then @+if k<limit then
+ begin c:=buffer[k+1]; @+if c<@'200 then {yes, one is indeed present}
+ begin d:=2;
+ if is_hex(c) then @+if k+2<=limit then
+ begin cc:=buffer[k+2]; @+if is_hex(cc) then incr(d);
+ end;
+ if d>2 then
+ begin hex_to_cur_chr; buffer[k-1]:=cur_chr;
+ end
+ else if c<@'100 then buffer[k-1]:=c+@'100
+ else buffer[k-1]:=c-@'100;
+ buffer2[k-1]:=0; limit:=limit-d; first:=first-d;
+ l:=k; cur_chr:=buffer[k-1]; cat:=cat_code(cur_chr);
+ while l<=limit do
+ begin buffer[l]:=buffer[l+d]; buffer2[l]:=buffer2[l+d]; incr(l);
+ end;
+ goto start_cs;
+ end;
+ end;
+end
+ at z
+
+ at x [24.356] l.7727 - pTeX: scan control sequence (cont)
+@ @<Scan ahead in the buffer...@>=
+begin repeat cur_chr:=buffer[k]; cat:=cat_code(cur_chr); incr(k);
+until (cat<>letter)or(k>limit);
+@<If an expanded...@>;
+if cat<>letter then decr(k);
+ {now |k| points to first nonletter}
+if k>loc+1 then {multiletter control sequence has been scanned}
+ begin cur_cs:=id_lookup(loc,k-loc); loc:=k; goto found;
+ end;
+end
+ at y
+@ @<Scan ahead in the buffer...@>=
+begin repeat cur_chr:=buffer[k]; incr(k);
+ if multistrlen(ustringcast(buffer), limit+1, k-1)=2 then
+ begin cat:=kcat_code(kcatcodekey(fromBUFF(ustringcast(buffer), limit+1, k-1)));
+ for l:=k-1 to k-2+multistrlen(ustringcast(buffer), limit+1, k-1) do
+ buffer2[l]:=1;
+ incr(k);
+ if (cat=kanji)or(cat=kana) then
+ begin if (ptex_lineend mod 2)=0 then state:=skip_blanks_kanji
+ else state:=skip_blanks end;
+ end
+ else cat:=cat_code(cur_chr);
+ while (buffer[k]=cur_chr)and(cat=sup_mark)and(k<limit) do
+ begin c:=buffer[k+1]; @+if c<@'200 then {yes, one is indeed present}
+ begin d:=2;
+ if is_hex(c) then @+if k+2<=limit then
+ begin cc:=buffer[k+2]; @+if is_hex(cc) then incr(d);
+ end;
+ if d>2 then
+ begin hex_to_cur_chr;
+ end
+ else if c<@'100 then cur_chr:=c+@'100
+ else cur_chr:=c-@'100;
+ cat:=cat_code(cur_chr);
+ if (cat=letter)or(cat=sup_mark) then
+ begin buffer[k-1]:=cur_chr; buffer2[k-1]:=0;
+ limit:=limit-d; first:=first-d;
+ l:=k;
+ while l<=limit do
+ begin buffer[l]:=buffer[l+d]; buffer2[l]:=buffer2[l+d]; incr(l);
+ end;
+ end;
+ end;
+ end;
+ if cat=letter then state:=skip_blanks;
+until not((cat=letter)or(cat=kanji)or(cat=kana))or(k>limit);
+{@@<If an expanded...@@>;}
+if not((cat=letter)or(cat=kanji)or(cat=kana)) then decr(k);
+if cat=other_kchar then decr(k); {now |k| points to first nonletter}
+if k>loc+1 then {multiletter control sequence has been scanned}
+ begin cur_cs:=id_lookup(loc,k-loc); loc:=k; goto found;
+ end;
+end
+ at z
+
+ at x [24.357] l.7771 - pTeX: input from token list
+@<Input from token list, |goto restart| if end of list or
+ if a parameter needs to be expanded@>=
+if loc<>null then {list not exhausted}
+@^inner loop@>
+ begin t:=info(loc); loc:=link(loc); {move to next}
+ if t>=cs_token_flag then {a control sequence token}
+ begin cur_cs:=t-cs_token_flag;
+ cur_cmd:=eq_type(cur_cs); cur_chr:=equiv(cur_cs);
+ if cur_cmd>=outer_call then
+ if cur_cmd=dont_expand then
+ @<Get the next token, suppressing expansion@>
+ else check_outer_validity;
+ end
+ else begin cur_cmd:=t div @'400; cur_chr:=t mod @'400;
+ case cur_cmd of
+ left_brace: incr(align_state);
+ right_brace: decr(align_state);
+ out_param: @<Insert macro parameter and |goto restart|@>;
+ othercases do_nothing
+ endcases;
+ end;
+ end
+else begin {we are done with this token list}
+ end_token_list; goto restart; {resume previous level}
+ end
+ at y
+@<Input from token list, |goto restart| if end of list or
+ if a parameter needs to be expanded@>=
+if loc<>null then {list not exhausted}
+@^inner loop@>
+ begin t:=info(loc); loc:=link(loc); {move to next}
+ if t>=cs_token_flag then {a control sequence token}
+ begin cur_cs:=t-cs_token_flag;
+ cur_cmd:=eq_type(cur_cs); cur_chr:=equiv(cur_cs);
+ if cur_cmd>=outer_call then
+ if cur_cmd=dont_expand then
+ @<Get the next token, suppressing expansion@>
+ else check_outer_validity;
+ end
+ else if check_kanji(t) then {|wchar_token|}
+ begin cur_chr:=t; cur_cmd:=kcat_code(kcatcodekey(t));
+ end
+ else
+ begin cur_cmd:=Hi(t); cur_chr:=Lo(t);
+ case cur_cmd of
+ left_brace: incr(align_state);
+ right_brace: decr(align_state);
+ out_param: @<Insert macro parameter and |goto restart|@>;
+ othercases do_nothing
+ endcases;
+ end;
+ end
+else begin {we are done with this token list}
+ end_token_list; goto restart; {resume previous level}
+ end
+ at z
+
+ at x [24] pTeX: firm_up_the_line
+ if start<limit then for k:=start to limit-1 do print(buffer[k]);
+ first:=limit; prompt_input("=>"); {wait for user response}
+ at .=>@>
+ if last>first then
+ begin for k:=first to last-1 do {move line down in buffer}
+ buffer[k+start-first]:=buffer[k];
+ at y
+ if start<limit then for k:=start to limit-1 do
+ if buffer2[k]>0 then print_char(buffer[k]) else print(buffer[k]);
+ first:=limit; prompt_input("=>"); {wait for user response}
+ at .=>@>
+ if last>first then
+ begin for k:=first to last-1 do {move line down in buffer}
+ begin buffer[k+start-first]:=buffer[k]; buffer2[k+start-first]:=buffer2[k]; end;
+ at z
+
+ at x [24.365] l.7935 - pTeX: get_token
+ at p procedure get_token; {sets |cur_cmd|, |cur_chr|, |cur_tok|}
+begin no_new_control_sequence:=false; get_next; no_new_control_sequence:=true;
+@^inner loop@>
+if cur_cs=0 then cur_tok:=(cur_cmd*@'400)+cur_chr
+else cur_tok:=cs_token_flag+cur_cs;
+end;
+ at y
+ at p procedure get_token; {sets |cur_cmd|, |cur_chr|, |cur_tok|}
+begin no_new_control_sequence:=false; get_next; no_new_control_sequence:=true;
+@^inner loop@>
+if cur_cs=0 then
+ if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then {|wchar_token|}
+ cur_tok:=cur_chr
+ else cur_tok:=(cur_cmd*@'400)+cur_chr
+else cur_tok:=cs_token_flag+cur_cs;
+end;
+ at z
+
+ at x [25.374] l.8073 - pTeX: get_chr
+@ @<Look up the characters of list |r| in the hash table...@>=
+j:=first; p:=link(r);
+while p<>null do
+ begin if j>=max_buf_stack then
+ begin max_buf_stack:=j+1;
+ if max_buf_stack=buf_size then
+ overflow("buffer size",buf_size);
+@:TeX capacity exceeded buffer size}{\quad buffer size@>
+ end;
+ buffer[j]:=info(p) mod @'400; incr(j); p:=link(p);
+ end;
+if j>first+1 then
+ begin no_new_control_sequence:=false; cur_cs:=id_lookup(first,j-first);
+ no_new_control_sequence:=true;
+ end
+else if j=first then cur_cs:=null_cs {the list is empty}
+else cur_cs:=single_base+buffer[first] {the list has length one}
+ at y
+@ @<Look up the characters of list |r| in the hash table...@>=
+j:=first; p:=link(r);
+while p<>null do
+ begin if j>=max_buf_stack then
+ begin max_buf_stack:=j+1;
+ if max_buf_stack=buf_size then
+ overflow("buffer size",buf_size);
+@:TeX capacity exceeded buffer size}{\quad buffer size@>
+ end;
+ if check_kanji(info(p)) then {|wchar_token|}
+ begin buffer[j]:=Hi(info(p)); buffer2[j]:=1; incr(j); buffer2[j]:=1;
+ end
+ else buffer2[j]:=0;
+ buffer[j]:=Lo(info(p)); incr(j); p:=link(p);
+ end;
+if j>first+1 then
+ begin no_new_control_sequence:=false; cur_cs:=id_lookup(first,j-first);
+ no_new_control_sequence:=true;
+ end
+else if j=first then cur_cs:=null_cs {the list is empty}
+else cur_cs:=single_base+buffer[first] {the list has length one}
+ at z
+
+ at x [25.380] l.8221 - pTeX: get_x_token
+ at p procedure get_x_token; {sets |cur_cmd|, |cur_chr|, |cur_tok|,
+ and expands macros}
+label restart,done;
+begin restart: get_next;
+@^inner loop@>
+if cur_cmd<=max_command then goto done;
+if cur_cmd>=call then
+ if cur_cmd<end_template then macro_call
+ else begin cur_cs:=frozen_endv; cur_cmd:=endv;
+ goto done; {|cur_chr=null_list|}
+ end
+else expand;
+goto restart;
+done: if cur_cs=0 then cur_tok:=(cur_cmd*@'400)+cur_chr
+else cur_tok:=cs_token_flag+cur_cs;
+end;
+ at y
+ at p procedure get_x_token; {sets |cur_cmd|, |cur_chr|, |cur_tok|,
+ and expands macros}
+label restart,done;
+begin restart: get_next;
+@^inner loop@>
+if cur_cmd<=max_command then goto done;
+if cur_cmd>=call then
+ if cur_cmd<end_template then macro_call
+ else begin cur_cs:=frozen_endv; cur_cmd:=endv;
+ goto done; {|cur_chr=null_list|}
+ end
+else expand;
+goto restart;
+done: if cur_cs=0 then
+ if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
+ cur_tok:=cur_chr
+ else cur_tok:=(cur_cmd*@'400)+cur_chr
+else cur_tok:=cs_token_flag+cur_cs;
+end;
+ at z
+
+ at x [25.381] l.8151 - pTeX: x_token
+ at p procedure x_token; {|get_x_token| without the initial |get_next|}
+begin while cur_cmd>max_command do
+ begin expand;
+ get_next;
+ end;
+if cur_cs=0 then cur_tok:=(cur_cmd*@'400)+cur_chr
+else cur_tok:=cs_token_flag+cur_cs;
+ at y
+ at p procedure x_token; {|get_x_token| without the initial |get_next|}
+begin while cur_cmd>max_command do
+ begin expand;
+ get_next;
+ end;
+if cur_cs=0 then
+ if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
+ cur_tok:=cur_chr
+ else cur_tok:=(cur_cmd*@'400)+cur_chr
+else cur_tok:=cs_token_flag+cur_cs;
+ at z
+
+ at x [26.413] l.8341 - pTeX: scan_something_internal
+ at p procedure scan_something_internal(@!level:small_number;@!negative:boolean);
+ at y
+ at p @t\4@>@<Declare procedures needed in |scan_something_internal|@>@t@>@/
+procedure scan_something_internal(@!level:small_number;@!negative:boolean);
+ at z
+ at x [26.413] l.8343 - pTeX: scan_something_internal
+var m:halfword; {|chr_code| part of the operand token}
+ at y
+var m:halfword; {|chr_code| part of the operand token}
+@!q,@!r:pointer; {general purpose indices}
+@!tx:pointer; {effective tail node}
+@!qx:halfword; {general purpose index}
+ at z
+ at x [26.413] l.8345 - pTeX: scan_something_internal
+case cur_cmd of
+def_code: @<Fetch a character code from some table@>;
+toks_register,assign_toks,def_family,set_font,def_font: @<Fetch a token list or
+ font identifier, provided that |level=tok_val|@>;
+ at y
+case cur_cmd of
+assign_kinsoku: @<Fetch breaking penalty from some table@>;
+assign_inhibit_xsp_code: @<Fetch inhibit type from some table@>;
+set_kansuji_char: @<Fetch kansuji char code from some table@>;
+def_code: @<Fetch a character code from some table@>;
+toks_register,assign_toks,def_family,set_font,def_font,def_jfont,def_tfont:
+ @<Fetch a token list or font identifier, provided that |level=tok_val|@>;
+ at z
+
+ at x [26.414] l.8373 - pTeX:
+begin scan_char_num;
+if m=math_code_base then scanned_result(ho(math_code(cur_val)))(int_val)
+else if m<math_code_base then scanned_result(equiv(m+cur_val))(int_val)
+else scanned_result(eqtb[m+cur_val].int)(int_val);
+ at y
+begin
+if m=math_code_base then
+ begin scan_ascii_num;
+ scanned_result(ho(math_code(cur_val)))(int_val); end
+else if m=kcat_code_base then
+ begin scan_char_num;
+ scanned_result(equiv(m+kcatcodekey(cur_val)))(int_val); end
+else if m<math_code_base then { \.{\\lccode}, \.{\\uccode}, \.{\\sfcode}, \.{\\catcode} }
+ begin scan_ascii_num;
+ scanned_result(equiv(m+cur_val))(int_val) end
+else { \.{\\delcode} }
+ begin scan_ascii_num;
+ scanned_result(eqtb[m+cur_val].int)(int_val) end;
+ at z
+
+ at x pTeX: \ptexversion
+ at d badness_code=glue_val+2 {code for \.{\\badness}}
+ at y
+ at d badness_code=glue_val+2 {code for \.{\\badness}}
+ at d ptex_version_code=badness_code+1 {code for \.{\\ptexversion}}
+ at d ptex_minor_version_code=ptex_version_code+1 {code for \.{\\ptexminorversion}}
+ at z
+
+ at x pTeX: \ptexversion
+primitive("badness",last_item,badness_code);
+@!@:badness_}{\.{\\badness} primitive@>
+ at y
+primitive("badness",last_item,badness_code);
+@!@:badness_}{\.{\\badness} primitive@>
+primitive("ptexversion",last_item,ptex_version_code);
+@!@:ptexversion_}{\.{\\ptexversion} primitive@>
+primitive("ptexminorversion",last_item,ptex_minor_version_code);
+@!@:ptexminorversion_}{\.{\\ptexminorversion} primitive@>
+ at z
+
+ at x pTeX: \ptexversion
+ input_line_no_code: print_esc("inputlineno");
+ at y
+ input_line_no_code: print_esc("inputlineno");
+ ptex_version_code: print_esc("ptexversion");
+ ptex_minor_version_code: print_esc("ptexminorversion");
+ at z
+
+ at x [26.420] l.8474 - pTeX: Fetch a box dimension: dir_node
+begin scan_eight_bit_int;
+if box(cur_val)=null then cur_val:=0 @+else cur_val:=mem[box(cur_val)+m].sc;
+ at y
+begin scan_eight_bit_int; q:=box(cur_val);
+if q=null then cur_val:=0
+else begin qx:=q;
+ while (q<>null)and(abs(box_dir(q))<>abs(direction)) do q:=link(q);
+ if q=null then
+ begin r:=link(qx); link(qx):=null;
+ q:=new_dir_node(qx,abs(direction)); link(qx):=r;
+ cur_val:=mem[q+m].sc;
+ delete_glue_ref(space_ptr(q)); delete_glue_ref(xspace_ptr(q));
+ free_node(q,box_node_size);
+ end
+ else cur_val:=mem[q+m].sc;
+ end;
+ at z
+
+ at x [26.424] l.8508 - pTeX: disp_node
+legal in similar contexts.
+ at y
+legal in similar contexts.
+
+The macro |find_effective_tail_pTeX| sets |tx| to the last non-|disp_node|
+of the current list.
+ at z
+
+ at x [26.424] l.8510 - pTeX: disp_node
+@<Fetch an item in the current node...@>=
+ at y
+ at d find_effective_tail_pTeX==
+tx:=tail;
+if not is_char_node(tx) then
+ if type(tx)=disp_node then
+ begin tx:=prev_node;
+ if not is_char_node(tx) then
+ if type(tx)=disp_node then {|disp_node| from a discretionary}
+ begin tx:=head; q:=link(head);
+ while q<>prev_node do
+ begin if is_char_node(q) then tx:=q
+ else if type(q)<>disp_node then tx:=q;
+ end;
+ q:=link(q);
+ end;
+ end
+@#
+ at d find_effective_tail==find_effective_tail_pTeX
+
+@<Fetch an item in the current node...@>=
+ at z
+
+ at x pTeX: \ptexversion
+ begin if cur_chr=input_line_no_code then cur_val:=line
+ else cur_val:=last_badness; {|cur_chr=badness_code|}
+ at y
+ begin case m of
+ input_line_no_code: cur_val:=line;
+ badness_code: cur_val:=last_badness;
+ ptex_version_code: cur_val:=pTeX_version;
+ ptex_minor_version_code: cur_val:=pTeX_minor_version;
+ end; {there and no other cases}
+ at z
+
+ at x [26.424] l.8516 - pTeX: Fetch an item ...: disp_node
+else begin if cur_chr=glue_val then cur_val:=zero_glue at +else cur_val:=0;
+ at y
+else begin if cur_chr=glue_val then cur_val:=zero_glue at +else cur_val:=0;
+ find_effective_tail;
+ at z
+ at x [26.424] l.8518 - pTeX: Fetch an item ...: disp_node
+ if not is_char_node(tail)and(mode<>0) then
+ case cur_chr of
+ int_val: if type(tail)=penalty_node then cur_val:=penalty(tail);
+ dimen_val: if type(tail)=kern_node then cur_val:=width(tail);
+ glue_val: if type(tail)=glue_node then
+ begin cur_val:=glue_ptr(tail);
+ if subtype(tail)=mu_glue then cur_val_level:=mu_val;
+ end;
+ at y
+ if not is_char_node(tx)and(tx<>head)and(mode<>0) then
+ case cur_chr of
+ int_val: if type(tx)=penalty_node then cur_val:=penalty(tx);
+ dimen_val: if type(tx)=kern_node then cur_val:=width(tx);
+ glue_val: if type(tx)=glue_node then
+ begin cur_val:=glue_ptr(tx);
+ if subtype(tx)=mu_glue then cur_val_level:=mu_val;
+ end;
+ at z
+ at x [26.424] l.8527 - pTeX: Fetch an item ...: disp_node
+ else if (mode=vmode)and(tail=head) then
+ at y
+ else if (mode=vmode)and(tx=head) then
+ at z
+
+ at x [26.435] l.8940 - pTeX: scan_char_num
+procedure scan_char_num;
+begin scan_int;
+if (cur_val<0)or(cur_val>255) then
+ begin print_err("Bad character code");
+ at .Bad character code@>
+ help2("A character number must be between 0 and 255.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+ at y
+procedure scan_ascii_num;
+begin scan_int;
+if (cur_val<0)or(cur_val>255) then
+ begin print_err("Bad character code");
+ at .Bad character code@>
+ help2("A character number must be between 0 and 255.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+procedure scan_char_num;
+begin scan_int;
+if not is_char_ascii(cur_val) and not is_char_kanji(cur_val) then
+ begin print_err("Bad character code");
+ at .Bad character code@>
+ help2("A character number must be between 0 and 255, or KANJI code.")@/
+ ("I changed this one to zero."); int_error(cur_val); cur_val:=0;
+ end;
+end;
+ at z
+
+ at x [26.442] l.9045 - pTeX: KANJI character scanning
+@<Scan an alphabetic character code into |cur_val|@>=
+begin get_token; {suppress macro expansion}
+if cur_tok<cs_token_flag then
+ begin cur_val:=cur_chr;
+ if cur_cmd<=right_brace then
+ if cur_cmd=right_brace then incr(align_state)
+ else decr(align_state);
+ end
+else if cur_tok<cs_token_flag+single_base then
+ cur_val:=cur_tok-cs_token_flag-active_base
+else cur_val:=cur_tok-cs_token_flag-single_base;
+if cur_val>255 then
+ begin print_err("Improper alphabetic constant");
+ at .Improper alphabetic constant@>
+ help2("A one-character control sequence belongs after a ` mark.")@/
+ ("So I'm essentially inserting \0 here.");
+ cur_val:="0"; back_error;
+ end
+else @<Scan an optional space@>;
+end
+ at y
+@<Scan an alphabetic character code into |cur_val|@>=
+begin get_token; {suppress macro expansion}
+if cur_tok<cs_token_flag then
+ if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then {|wchar_token|}
+ begin skip_mode:=false; cur_val:=tonum(cur_chr);
+ end
+ else begin cur_val:=cur_chr;
+ if cur_cmd<=right_brace then
+ if cur_cmd=right_brace then incr(align_state)
+ else decr(align_state);
+ end
+else if cur_tok<cs_token_flag+single_base then
+ cur_val:=cur_tok-cs_token_flag-active_base
+else
+ { the token is a CS;
+ * if |kanji|<=|cur_cmd|<=|max_char_code|, then CS is let-equal to |wchar_token|
+ * if |max_char_code|<|cur_cmd|, then CS is a multibyte CS
+ => both case should raise "Improper ..." error
+ * otherwise it should be a single-character CS with |cur_val|<=255 }
+ begin if not (cur_cmd<kanji) then cur_cmd:=invalid_char;
+ cur_val:=cur_tok-cs_token_flag-single_base;
+ end;
+if (cur_val>255)and(cur_cmd<kanji) then
+ begin print_err("Improper alphabetic or KANJI constant");
+ at .Improper alphabetic constant@>
+ help2("A one-character control sequence belongs after a ` mark.")@/
+ ("So I'm essentially inserting \0 here.");
+ cur_val:="0"; back_error;
+ end
+else @<Scan an optional space@>;
+skip_mode:=true;
+end
+ at z
+
+ at x [26.455] l.9288 - pTeX: zw, zh: zenkaku width & height
+if scan_keyword("em") then v:=(@<The em width for |cur_font|@>)
+ at .em@>
+else if scan_keyword("ex") then v:=(@<The x-height for |cur_font|@>)
+ at .ex@>
+else goto not_found;
+ at y
+if scan_keyword("em") then v:=(@<The em width for |cur_font|@>)
+ at .em@>
+else if scan_keyword("ex") then v:=(@<The x-height for |cur_font|@>)
+ at .ex@>
+else if scan_keyword("zw") then @<The KANJI width for |cur_jfont|@>
+ at .zw@>
+else if scan_keyword("zh") then @<The KANJI height for |cur_jfont|@>
+ at .zh@>
+else goto not_found;
+ at z
+
+ at x [26.458] l.9345 - pTeX: dimension unit: Q, H (1/4 mm)
+else if scan_keyword("sp") then goto done
+ at .sp@>
+ at y
+else if scan_keyword("H") then set_conversion(7227)(10160)
+ at .H@>
+else if scan_keyword("Q") then set_conversion(7227)(10160)
+ at .Q@>
+else if scan_keyword("sp") then goto done
+ at .sp@>
+ at z
+
+ at x [26.459] pTeX: help message
+help6("Dimensions can be in units of em, ex, in, pt, pc,")@/
+ ("cm, mm, dd, cc, bp, or sp; but yours is a new one!")@/
+ at y
+help6("Dimensions can be in units of em, ex, zw, zh, in, pt, pc,")@/
+ ("cm, mm, dd, cc, bp, H, Q, or sp; but yours is a new one!")@/
+ at z
+
+ at x [27.464] l.9475 - pTeX: str_toks
+ if t=" " then t:=space_token
+ else t:=other_token+t;
+ at y
+ if t>=@"100 then
+ begin t:=fromBUFFshort(str_pool, pool_ptr, k); incr(k);
+ end
+ else if t=" " then t:=space_token
+ else t:=other_token+t;
+ at z
+
+ at x [27.468] l.9531 - pTeX: convert KANJI code
+ at d number_code=0 {command code for \.{\\number}}
+ at d roman_numeral_code=1 {command code for \.{\\romannumeral}}
+ at d string_code=2 {command code for \.{\\string}}
+ at d meaning_code=3 {command code for \.{\\meaning}}
+ at d font_name_code=4 {command code for \.{\\fontname}}
+ at d job_name_code=5 {command code for \.{\\jobname}}
+ at y
+ at d number_code=0 {command code for \.{\\number}}
+ at d roman_numeral_code=1 {command code for \.{\\romannumeral}}
+ at d kansuji_code=2 {command code for \.{\\kansuji}}
+ at d string_code=3 {command code for \.{\\string}}
+ at d meaning_code=4 {command code for \.{\\meaning}}
+ at d font_name_code=5 {command code for \.{\\fontname}}
+ at d euc_code=6 {command code for \.{\\euc}}
+ at d sjis_code=7 {command code for \.{\\sjis}}
+ at d jis_code=8 {command code for \.{\\jis}}
+ at d kuten_code=9 {command code for \.{\\kuten}}
+ at d ucs_code=10 {command code for \.{\\ucs}}
+ at d toucs_code=11 {command code for \.{\\toucs}}
+ at d tojis_code=12 {command code for \.{\\tojis}}
+ at d ptex_font_name_code=13 {command code for \.{\\ptexfontname}}
+ at d ptex_revision_code=14 {command code for \.{\\ptexrevision}}
+ at d ptex_convert_codes=15 {end of \pTeX's command codes}
+ at d job_name_code=ptex_convert_codes {command code for \.{\\jobname}}
+ at z
+
+ at x [27.468] l.9547 - pTeX:
+primitive("fontname",convert,font_name_code);@/
+@!@:font_name_}{\.{\\fontname} primitive@>
+ at y
+primitive("fontname",convert,font_name_code);@/
+@!@:font_name_}{\.{\\fontname} primitive@>
+primitive("kansuji",convert,kansuji_code);
+@!@:kansuji_}{\.{\\kansuji} primitive@>
+primitive("euc",convert,euc_code);
+@!@:euc_}{\.{\\euc} primitive@>
+primitive("sjis",convert,sjis_code);
+@!@:sjis_}{\.{\\sjis} primitive@>
+primitive("jis",convert,jis_code);
+@!@:jis_}{\.{\\jis} primitive@>
+primitive("kuten",convert,kuten_code);
+@!@:kuten_}{\.{\\kuten} primitive@>
+primitive("ucs",convert,ucs_code);
+@!@:ucs_}{\.{\\ucs} primitive@>
+primitive("toucs",convert,toucs_code);
+@!@:toucs_}{\.{\\toucs} primitive@>
+primitive("tojis",convert,tojis_code);
+@!@:tojis_}{\.{\\tojis} primitive@>
+primitive("ptexfontname",convert,ptex_font_name_code);
+@!@:ptexfontname_}{\.{\\ptexfontname} primitive@>
+primitive("ptexrevision",convert,ptex_revision_code);
+@!@:ptexrevision_}{\.{\\ptexrevision} primitive@>
+ at z
+
+ at x [27.469] l.9558 - pTeX:
+ font_name_code: print_esc("fontname");
+ at y
+ font_name_code: print_esc("fontname");
+ kansuji_code: print_esc("kansuji");
+ euc_code:print_esc("euc");
+ sjis_code:print_esc("sjis");
+ jis_code:print_esc("jis");
+ kuten_code:print_esc("kuten");
+ ucs_code:print_esc("ucs");
+ toucs_code:print_esc("toucs");
+ tojis_code:print_esc("tojis");
+ ptex_font_name_code: print_esc("ptexfontname");
+ ptex_revision_code:print_esc("ptexrevision");
+ at z
+
+ at x [27.470] l.9566 - pTeX: convert KANJI code continue
+ at p procedure conv_toks;
+var old_setting:0..max_selector; {holds |selector| setting}
+ at y
+ at p procedure conv_toks;
+var old_setting:0..max_selector; {holds |selector| setting}
+@!cx:KANJI_code; {temporary register for KANJI}
+ at z
+
+ at x [27.471] l.9577 - pTeX: convert KANJI code continue
+@ @<Scan the argument for command |c|@>=
+case c of
+number_code,roman_numeral_code: scan_int;
+string_code, meaning_code: begin save_scanner_status:=scanner_status;
+ scanner_status:=normal; get_token; scanner_status:=save_scanner_status;
+ end;
+ at y
+@ @<Scan the argument for command |c|@>=
+KANJI(cx):=0;
+case c of
+number_code,roman_numeral_code,
+kansuji_code,euc_code,sjis_code,jis_code,kuten_code,
+ucs_code,toucs_code,tojis_code: scan_int;
+ptex_font_name_code: scan_font_ident;
+ptex_revision_code: do_nothing;
+string_code, meaning_code: begin save_scanner_status:=scanner_status;
+ scanner_status:=normal; get_token;
+ if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then {|wchar_token|}
+ KANJI(cx):=cur_tok;
+ scanner_status:=save_scanner_status;
+ end;
+ at z
+
+ at x [27.471] l.9587 - pTeX: convert KANJI code continue
+@ @<Print the result of command |c|@>=
+case c of
+number_code: print_int(cur_val);
+roman_numeral_code: print_roman_int(cur_val);
+string_code:if cur_cs<>0 then sprint_cs(cur_cs)
+ else print_char(cur_chr);
+ at y
+@ @<Print the result of command |c|@>=
+case c of
+number_code: print_int(cur_val);
+roman_numeral_code: print_roman_int(cur_val);
+kansuji_code: print_kansuji(cur_val);
+jis_code: begin cur_val:=fromJIS(cur_val);
+ if cur_val=0 then print_int(-1) else print_int(cur_val); end;
+euc_code: begin cur_val:=fromEUC(cur_val);
+ if cur_val=0 then print_int(-1) else print_int(cur_val); end;
+sjis_code: begin cur_val:=fromSJIS(cur_val);
+ if cur_val=0 then print_int(-1) else print_int(cur_val); end;
+kuten_code: begin cur_val:=fromKUTEN(cur_val);
+ if cur_val=0 then print_int(-1) else print_int(cur_val); end;
+ucs_code: begin cur_val:=fromUCS(cur_val);
+ if cur_val=0 then print_int(-1) else print_int(cur_val); end;
+toucs_code: begin cur_val:=toUCS(cur_val);
+ if cur_val=0 then print_int(-1) else print_int(cur_val); end;
+tojis_code: begin cur_val:=toJIS(cur_val);
+ if cur_val=0 then print_int(-1) else print_int(cur_val); end;
+ptex_font_name_code: begin
+ print_font_name_and_size(cur_val);
+ print_font_dir_and_enc(cur_val);
+ end;
+ptex_revision_code: print(pTeX_revision);
+string_code:if cur_cs<>0 then sprint_cs(cur_cs)
+ else if KANJI(cx)=0 then print_char(cur_chr)
+ else print_kanji(cx);
+ at z
+
+ at x [28.487] l.9852 - pTeX: iftdir, ifydir, ifddir, iftbox, ifybox, ifdbox
+ at d if_case_code=16 { `\.{\\ifcase}' }
+ at y
+ at d if_case_code=16 { `\.{\\ifcase}' }
+@#
+ at d if_tdir_code=if_case_code+1 { `\.{\\iftdir}' }
+ at d if_ydir_code=if_tdir_code+1 { `\.{\\ifydir}' }
+ at d if_ddir_code=if_ydir_code+1 { `\.{\\ifddir}' }
+ at d if_mdir_code=if_ddir_code+1 { `\.{\\ifmdir}' }
+ at d if_tbox_code=if_mdir_code+1 { `\.{\\iftbox}' }
+ at d if_ybox_code=if_tbox_code+1 { `\.{\\ifybox}' }
+ at d if_dbox_code=if_ybox_code+1 { `\.{\\ifdbox}' }
+ at d if_mbox_code=if_dbox_code+1 { `\.{\\ifmbox}' }
+@#
+ at d if_jfont_code=if_mbox_code+1 { `\.{\\ifjfont}' }
+ at d if_tfont_code=if_jfont_code+1 { `\.{\\iftfont}' }
+ at z
+
+ at x [28.487] l.9887 - pTeX: iftdir, ifydir, ifddir, iftbox, ifybox, ifdbox
+primitive("ifcase",if_test,if_case_code);
+@!@:if_case_}{\.{\\ifcase} primitive@>
+ at y
+primitive("ifcase",if_test,if_case_code);
+@!@:if_case_}{\.{\\ifcase} primitive@>
+primitive("iftdir",if_test,if_tdir_code);
+@!@:if_tdir_}{\.{\\iftdir} primitive@>
+primitive("ifydir",if_test,if_ydir_code);
+@!@:if_ydir_}{\.{\\ifydir} primitive@>
+primitive("ifddir",if_test,if_ddir_code);
+@!@:if_ddir_}{\.{\\ifddir} primitive@>
+primitive("ifmdir",if_test,if_mdir_code);
+@!@:if_mdir_}{\.{\\ifmdir} primitive@>
+primitive("iftbox",if_test,if_tbox_code);
+@!@:if_tbox_}{\.{\\iftbox} primitive@>
+primitive("ifybox",if_test,if_ybox_code);
+@!@:if_ybox_}{\.{\\ifybox} primitive@>
+primitive("ifdbox",if_test,if_dbox_code);
+@!@:if_dbox_}{\.{\\ifdbox} primitive@>
+primitive("ifmbox",if_test,if_mbox_code);
+@!@:if_mbox_}{\.{\\ifmbox} primitive@>
+primitive("ifjfont",if_test,if_jfont_code);
+@!@:if_jfont_}{\.{\\ifjfont} primitive@>
+primitive("iftfont",if_test,if_tfont_code);
+@!@:if_tfont_}{\.{\\iftfont} primitive@>
+ at z
+
+ at x [28.488] l.9907 - pTeX: iftdir, ifydir, ifddir, iftbox, ifybox, ifdbox
+ if_case_code:print_esc("ifcase");
+ at y
+ if_case_code:print_esc("ifcase");
+ if_tdir_code:print_esc("iftdir");
+ if_ydir_code:print_esc("ifydir");
+ if_ddir_code:print_esc("ifddir");
+ if_mdir_code:print_esc("ifmdir");
+ if_tbox_code:print_esc("iftbox");
+ if_ybox_code:print_esc("ifybox");
+ if_dbox_code:print_esc("ifdbox");
+ if_mbox_code:print_esc("ifmbox");
+ if_jfont_code:print_esc("ifjfont");
+ if_tfont_code:print_esc("iftfont");
+ at z
+
+ at x [28.501] l.10073 - pTeX: iftdir, ifydir, ifddir, iftbox, ifybox, ifdbox
+if_void_code, if_hbox_code, if_vbox_code: @<Test box register status@>;
+ at y
+if_tdir_code: b:=(abs(direction)=dir_tate);
+if_ydir_code: b:=(abs(direction)=dir_yoko);
+if_ddir_code: b:=(abs(direction)=dir_dtou);
+if_mdir_code: b:=(direction<0);
+if_tbox_code, if_ybox_code, if_dbox_code, if_mbox_code,
+if_void_code, if_hbox_code, if_vbox_code: @<Test box register status@>;
+if_jfont_code, if_tfont_code:
+ begin scan_font_ident;
+ if this_if=if_jfont_code then b:=(font_dir[cur_val]=dir_yoko)
+ else if this_if=if_tfont_code then b:=(font_dir[cur_val]=dir_tate);
+ end;
+ at z
+
+ at x [28.505] l.10118 - pTeX: Test box register status : iftbox, ifybox, ifdbox
+if this_if=if_void_code then b:=(p=null)
+else if p=null then b:=false
+else if this_if=if_hbox_code then b:=(type(p)=hlist_node)
+else b:=(type(p)=vlist_node);
+ at y
+if this_if=if_void_code then b:=(p=null)
+else if p=null then b:=false
+else begin
+ if type(p)=dir_node then p:=list_ptr(p);
+ if this_if=if_hbox_code then b:=(type(p)=hlist_node)
+ else if this_if=if_vbox_code then b:=(type(p)=vlist_node)
+ else if this_if=if_tbox_code then b:=(abs(box_dir(p))=dir_tate)
+ else if this_if=if_ybox_code then b:=(abs(box_dir(p))=dir_yoko)
+ else if this_if=if_dbox_code then b:=(abs(box_dir(p))=dir_dtou)
+ else b:=(box_dir(p)<0);
+ end
+ at z
+
+ at x [28.502] l.10138 - pTeX: if[cat] : Test character : KANJI character
+if (cur_cmd>active_char)or(cur_chr>255) then {not a character}
+ begin m:=relax; n:=256;
+ end
+else begin m:=cur_cmd; n:=cur_chr;
+ end;
+get_x_token_or_active_char;
+if (cur_cmd>active_char)or(cur_chr>255) then
+ begin cur_cmd:=relax; cur_chr:=256;
+ end;
+ at y
+if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
+ begin m:=cur_cmd; n:=cur_chr;
+ end
+else if (cur_cmd>active_char)or(cur_chr>255) then
+ begin m:=relax; n:=max_cjk_val;
+ end
+else begin m:=cur_cmd; n:=cur_chr;
+ end;
+get_x_token_or_active_char;
+if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
+ begin cur_cmd:=cur_cmd;
+ end {dummy}
+else if (cur_cmd>active_char)or(cur_chr>255) then
+ begin cur_cmd:=relax; cur_chr:=max_cjk_val;
+ end;
+ at z
+
+ at x pTeX for Windows, treat filename with 0x5c
+ at p procedure begin_name;
+begin area_delimiter:=0; ext_delimiter:=0; quoted_filename:=false;
+end;
+ at y
+ at p procedure begin_name;
+begin area_delimiter:=0; ext_delimiter:=0; quoted_filename:=false; prev_char:=0;
+end;
+ at z
+
+ at x pTeX for Windows, treat filename with 0x5c
+else begin str_room(1); append_char(c); {contribute |c| to the current string}
+ if IS_DIR_SEP(c) then
+ begin area_delimiter:=cur_length; ext_delimiter:=0;
+ end
+ else if c="." then ext_delimiter:=cur_length;
+ more_name:=true;
+ end;
+end;
+ at y
+else begin str_room(1); append_char(c); {contribute |c| to the current string}
+ if (IS_DIR_SEP(c)and(not_kanji_char_seq(prev_char,c))) then
+ begin area_delimiter:=cur_length; ext_delimiter:=0;
+ end
+ else if c="." then ext_delimiter:=cur_length;
+ more_name:=true;
+ end;
+ prev_char:=c;
+end;
+ at z
+
+ at x [29.518] - print_quoted in pTeX is already defined
+ at d print_quoted(#) == {print string |#|, omitting quotes}
+if #<>0 then
+ for j:=str_start[#] to str_start[#+1]-1 do
+ if so(str_pool[j])<>"""" then
+ print(so(str_pool[j]))
+
+ at y
+ at z
+
+ at x [29.519]
+ at d append_to_name(#)==begin c:=#; if not (c="""") then begin incr(k);
+ if k<=file_name_size then name_of_file[k]:=xchr[c];
+ end end
+ at y
+ at d append_to_name_char(#)==begin incr(k);
+ if k<=file_name_size then name_of_file[k]:=xchr[#];
+ end
+
+ at d append_to_name_hex(#)==if (#)<10 then append_to_name_char((#)+"0")
+ else append_to_name_char((#)-10+"a")
+
+ at d append_to_name(#)==begin c:=#; if not (c="""") then append_to_name_char(c); end
+
+ at d append_to_name_escape(#)==begin
+ if (#)>=@"100 then begin
+ c:=(#)-@"100;
+ append_to_name_char(c);
+ end else begin
+ c:=#;
+ if (c>=@"80) and (not isinternalUPTEX) and isterminalUTF8 then begin
+ append_to_name_char("^");
+ append_to_name_char("^");
+ append_to_name_hex(c div 16);
+ append_to_name_hex(c mod 16);
+ end else
+ append_to_name_char(c);
+ end
+end
+
+ at d append_to_name_str_pool(#)==if not ((#)="""") then append_to_name_escape(#)
+ at z
+
+ at x l.10389
+name_of_file:= xmalloc_array (ASCII_code, length(a)+length(n)+length(e)+1);
+ at y
+name_of_file:= xmalloc_array (ASCII_code, (length(a)+length(n)+length(e))*4+1);
+ at z
+
+ at x [29.519] pack_file_name
+for j:=str_start[a] to str_start[a+1]-1 do append_to_name(so(str_pool[j]));
+for j:=str_start[n] to str_start[n+1]-1 do append_to_name(so(str_pool[j]));
+for j:=str_start[e] to str_start[e+1]-1 do append_to_name(so(str_pool[j]));
+ at y
+for j:=str_start[a] to str_start[a+1]-1 do append_to_name_str_pool(so(str_pool[j]));
+for j:=str_start[n] to str_start[n+1]-1 do append_to_name_str_pool(so(str_pool[j]));
+for j:=str_start[e] to str_start[e+1]-1 do append_to_name_str_pool(so(str_pool[j]));
+ at z
+
+ at x l.10444
+name_of_file := xmalloc_array (ASCII_code, n+(b-a+1)+format_ext_length+1);
+ at y
+name_of_file := xmalloc_array (ASCII_code, (n+(b-a+1)+format_ext_length)*4+1);
+ at z
+
+ at x [29.526] l.10668 - pTeX: scan file name
+loop at +begin if (cur_cmd>other_char)or(cur_chr>255) then {not a character}
+ begin back_input; goto done;
+ end;
+ {If |cur_chr| is a space and we're not scanning a token list, check
+ whether we're at the end of the buffer. Otherwise we end up adding
+ spurious spaces to file names in some cases.}
+ if (cur_chr=" ") and (state<>token_list) and (loc>limit) then goto done;
+ if not more_name(cur_chr) then goto done;
+ get_x_token;
+ end;
+ end;
+done: end_name; name_in_progress:=false;
+ at y
+skip_mode:=false;
+loop at +begin
+ if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then {is kanji}
+ begin str_room(2);
+ append_char(@"100+Hi(cur_chr)); {kanji upper byte}
+ append_char(@"100+Lo(cur_chr)); {kanji lower byte}
+ end
+ else if (cur_cmd>other_char)or(cur_chr>255) then {not an alphabet}
+ begin back_input; goto done;
+ end
+ {If |cur_chr| is a space and we're not scanning a token list, check
+ whether we're at the end of the buffer. Otherwise we end up adding
+ spurious spaces to file names in some cases.}
+ else if ((cur_chr=" ") and (state<>token_list) and (loc>limit)) or not more_name(cur_chr) then goto done;
+ get_x_token;
+ end;
+ end;
+done: end_name; name_in_progress:=false;
+skip_mode:=true;
+ at z
+
+ at x [29.???] open_log_file
+if buffer[l]=end_line_char then decr(l);
+for k:=1 to l do print(buffer[k]);
+print_ln; {now the transcript file contains the first line of input}
+ at y
+if buffer[l]=end_line_char then decr(l); print_unread_buffer_with_ptenc(1,l+1);
+print_ln; {now the transcript file contains the first line of input}
+ at z
+
+ at x [29.536] l.10834 - pTeX:
+begin
+if src_specials_p or file_line_error_style_p or parse_first_line_p
+then
+ wlog(banner_k)
+else
+ wlog(banner);
+ at y
+begin
+if src_specials_p or file_line_error_style_p or parse_first_line_p
+then
+ wlog(banner_k)
+else
+ wlog(banner);
+ wlog(' (');
+ wlog(conststringcast(get_enc_string));
+ wlog(')');
+ at z
+
+ at x [29.???] pTeX - start_input
+print_char("("); incr(open_parens);
+slow_print(full_source_filename_stack[in_open]); update_terminal;
+ at y
+print_char("("); incr(open_parens);
+slow_print_filename(full_source_filename_stack[in_open]); update_terminal;
+ at z
+
+ at x [30.560] l.10968 - pTeX:
+This is called BigEndian order.
+@!@^BigEndian order@>
+ at y
+This is called BigEndian order.
+@!@^BigEndian order@>
+
+We get \TeX\ knowledge about KANJI fonts from \.{JFM} files.
+The \.{JFM} format holds more two 16-bit integers, |id| and |nt|,
+at the top of the file.
+$$\vbox{\halign{\hfil#&$\null=\null$#\hfil\cr
+|id|&identification code of the file;\cr
+|nt|&number of words in the |char_type| table;\cr}}$$
+The identification byte, |id| equals~11 or~9. When \TeX\ reads a font file,
+the |id| equals~11 or~9 then the font is the \.{JFM}, othercases it is
+the \.{TFM} file. The \.{TFM} holds |lf| at the same postion of |id|,
+usually it takes a larger number than~9 or~11.
+The |nt| is nonnegative and less than $2^{15}$.
+
+We must have |bc=0|,
+$$\hbox{|lf=7+lh+nt+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ne+np|.}$$
+
+ at d yoko_jfm_id=11 {for `yoko-kumi' fonts}
+ at d tate_jfm_id=9 {for `tate-kumi' fonts}
+ at z
+
+ at x [30.544] l.11085 - pTeX: gk_tag
+operation looks for both |list_tag| and |ext_tag|.
+ at y
+operation looks for both |list_tag| and |ext_tag|.
+
+If the \.{JFM}, the |lig_tag| is called |gk_tag|. The |gk_tag| means that
+this character has a glue/kerning program starting at position |remainder|
+in the |glue_kern| array. And a \.{JFM} does not use |tag=2| and |tag=3|.
+ at z
+
+ at x [30.544] l.11088 - pTeX: gk_tag
+ at d lig_tag=1 {character has a ligature/kerning program}
+ at y
+ at d lig_tag=1 {character has a ligature/kerning program}
+ at d gk_tag=1 {character has a glue/kerning program}
+ at z
+
+ at x [30.549] l.11228 - pTeX:
+@<Glob...@>=
+@!font_info: ^fmemory_word;
+ at y
+@<Glob...@>=
+@!font_info: ^memory_word; {pTeX: use halfword for |char_type| table.}
+@!font_dir: ^eight_bits;
+ {pTeX: direction of fonts, 0 is default, 1 is Yoko, 2 is Tate}
+@!font_enc: ^eight_bits;
+ {pTeX: encoding of fonts, 0 is default, 1 is JIS, 2 is Unicode}
+@!font_num_ext: ^integer;
+ {pTeX: number of the |char_type| table.}
+@!jfm_enc: eight_bits; {pTeX: holds scanned result of encoding}
+ at z
+
+ at x [30.550] l.11270 - pTeX:
+@!char_base: ^integer;
+ {base addresses for |char_info|}
+ at y
+@!char_base: ^integer;
+ {base addresses for |char_info|}
+@!ctype_base: ^integer;
+ {pTeX: base addresses for KANJI character type parameters}
+ at z
+
+ at x
+@ @<Set init...@>=
+ at y
+@ @<Set init...@>=
+jfm_enc:=0;
+ at z
+
+ at x [30.554] l.11373 - pTeX:
+ at d orig_char_info_end(#)==#].qqqq
+ at d orig_char_info(#)==font_info[char_base[#]+orig_char_info_end
+ at y
+ at d orig_char_info_end(#)==#].qqqq
+ at d orig_char_info(#)==font_info[char_base[#]+orig_char_info_end
+@#
+ at d kchar_code_end(#)==#].hh.rh
+ at d kchar_code(#)==font_info[ctype_base[#]+kchar_code_end
+ at d kchar_type_end(#)==#].hh.lhfield
+ at d kchar_type(#)==font_info[ctype_base[#]+kchar_type_end
+ at z
+
+ at x [30.557] l.11413 - pTeX: glue_kern_start
+ at d lig_kern_start(#)==lig_kern_base[#]+rem_byte {beginning of lig/kern program}
+ at d lig_kern_restart_end(#)==256*op_byte(#)+rem_byte(#)+32768-kern_base_offset
+ at d lig_kern_restart(#)==lig_kern_base[#]+lig_kern_restart_end
+ at y
+ at d lig_kern_start(#)==lig_kern_base[#]+rem_byte {beginning of lig/kern program}
+ at d lig_kern_restart_end(#)==256*op_byte(#)+rem_byte(#)+32768-kern_base_offset
+ at d lig_kern_restart(#)==lig_kern_base[#]+lig_kern_restart_end
+ at d glue_kern_start(#)==lig_kern_base[#]+rem_byte {beginning of glue/kern program}
+ at d glue_kern_restart_end(#)==256*op_byte(#)+rem_byte(#)+32768-kern_base_offset
+ at d glue_kern_restart(#)==lig_kern_base[#]+glue_kern_restart_end
+ at z
+
+ at x [30.560] l.11457 - pTeX: jfm_flag, jfm_id, nt, cx
+var k:font_index; {index into |font_info|}
+ at y
+var k:font_index; {index into |font_info|}
+@!jfm_flag:dir_default..dir_tate; {direction of the \.{JFM}}
+@!nt:halfword; {number of the |char_type| tables}
+@!cx:KANJI_code; {kanji code}
+ at z
+
+ at x
+ at d read_sixteen(#)==begin #:=fbyte;
+ if #>127 then abort;
+ fget; #:=#*@'400+fbyte;
+ end
+ at y
+ at d read_sixteen(#)==begin #:=fbyte;
+ if #>127 then abort;
+ fget; #:=#*@'400+fbyte;
+ end
+ at d read_twentyfourx(#)==begin #:=fbyte;
+ fget; #:=#*@"100+fbyte;
+ fget; #:=#+fbyte*@"10000;
+ end
+ at z
+
+ at x [30.565] l.11548 - pTeX: read tfm size
+@ @<Read the {\.{TFM}} size fields@>=
+begin read_sixteen(lf);
+fget; read_sixteen(lh);
+fget; read_sixteen(bc);
+fget; read_sixteen(ec);
+if (bc>ec+1)or(ec>255) then abort;
+if bc>255 then {|bc=256| and |ec=255|}
+ begin bc:=1; ec:=0;
+ end;
+fget; read_sixteen(nw);
+fget; read_sixteen(nh);
+fget; read_sixteen(nd);
+fget; read_sixteen(ni);
+fget; read_sixteen(nl);
+fget; read_sixteen(nk);
+fget; read_sixteen(ne);
+fget; read_sixteen(np);
+if lf<>6+lh+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ne+np then abort;
+if (nw=0)or(nh=0)or(nd=0)or(ni=0) then abort;
+end
+ at y
+@ @<Read the {\.{TFM}} size fields@>=
+begin read_sixteen(lf);
+fget; read_sixteen(lh);
+if lf=yoko_jfm_id then
+ begin jfm_flag:=dir_yoko; nt:=lh;
+ fget; read_sixteen(lf);
+ fget; read_sixteen(lh);
+ end
+else if lf=tate_jfm_id then
+ begin jfm_flag:=dir_tate; nt:=lh;
+ fget; read_sixteen(lf);
+ fget; read_sixteen(lh);
+ end
+else begin jfm_flag:=dir_default; nt:=0;
+ end;
+fget; read_sixteen(bc);
+fget; read_sixteen(ec);
+if (bc>ec+1)or(ec>255) then abort;
+if bc>255 then {|bc=256| and |ec=255|}
+ begin bc:=1; ec:=0;
+ end;
+fget; read_sixteen(nw);
+fget; read_sixteen(nh);
+fget; read_sixteen(nd);
+fget; read_sixteen(ni);
+fget; read_sixteen(nl);
+fget; read_sixteen(nk);
+fget; read_sixteen(ne);
+fget; read_sixteen(np);
+if jfm_flag<>dir_default then
+ begin if lf<>7+lh+nt+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ne+np then abort;
+ end
+else
+ begin if lf<>6+lh+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ne+np then abort;
+ end;
+if (nw=0)or(nh=0)or(nd=0)or(ni=0) then abort;
+end
+ at z
+
+ at x [30.566] l.11574 - pTeX: set font_dir & font_num_ext
+@<Use size fields to allocate font information@>=
+lf:=lf-6-lh; {|lf| words should be loaded into |font_info|}
+if np<7 then lf:=lf+7-np; {at least seven parameters will appear}
+if (font_ptr=font_max)or(fmem_ptr+lf>font_mem_size) then
+ @<Apologize for not loading the font, |goto done|@>;
+f:=font_ptr+1;
+char_base[f]:=fmem_ptr-bc;
+width_base[f]:=char_base[f]+ec+1;
+height_base[f]:=width_base[f]+nw;
+depth_base[f]:=height_base[f]+nh;
+italic_base[f]:=depth_base[f]+nd;
+lig_kern_base[f]:=italic_base[f]+ni;
+kern_base[f]:=lig_kern_base[f]+nl-kern_base_offset;
+exten_base[f]:=kern_base[f]+kern_base_offset+nk;
+param_base[f]:=exten_base[f]+ne
+ at y
+@<Use size fields to allocate font information@>=
+if jfm_flag<>dir_default then
+ lf:=lf-7-lh {If \.{JFM}, |lf| holds more two-16bit records than \.{TFM}}
+else
+ lf:=lf-6-lh; {|lf| words should be loaded into |font_info|}
+if np<7 then lf:=lf+7-np; {at least seven parameters will appear}
+if (font_ptr=font_max)or(fmem_ptr+lf>font_mem_size) then
+ @<Apologize for not loading the font, |goto done|@>;
+f:=font_ptr+1;
+font_dir[f]:=jfm_flag;
+font_enc[f]:=jfm_enc; if jfm_flag=dir_default then font_enc[f]:=0;
+font_num_ext[f]:=nt;
+ctype_base[f]:=fmem_ptr;
+char_base[f]:=ctype_base[f]+nt-bc;
+width_base[f]:=char_base[f]+ec+1;
+height_base[f]:=width_base[f]+nw;
+depth_base[f]:=height_base[f]+nh;
+italic_base[f]:=depth_base[f]+nd;
+lig_kern_base[f]:=italic_base[f]+ni;
+kern_base[f]:=lig_kern_base[f]+nl-kern_base_offset;
+exten_base[f]:=kern_base[f]+kern_base_offset+nk;
+param_base[f]:=exten_base[f]+ne;
+ at z
+
+ at x [30.569] l.11619 - pTeX: read char_type
+@ @<Read character data@>=
+for k:=fmem_ptr to width_base[f]-1 do
+ begin store_four_quarters(font_info[k].qqqq);
+ at y
+@ @<Read character data@>=
+if jfm_flag<>dir_default then
+ for k:=ctype_base[f] to ctype_base[f]+nt-1 do
+ begin
+ fget; read_twentyfourx(cx);
+ if jfm_enc=2 then {Unicode TFM}
+ font_info[k].hh.rh:=toDVI(fromUCS(cx))
+ else if jfm_enc=1 then {JIS-encoded TFM}
+ font_info[k].hh.rh:=toDVI(fromJIS(cx))
+ else
+ font_info[k].hh.rh:=tokanji(cx); {|kchar_code|}
+ fget; cx:=fbyte;
+ font_info[k].hh.lhfield:=tonum(cx); {|kchar_type|}
+ end;
+for k:=char_base[f]+bc to width_base[f]-1 do
+ begin store_four_quarters(font_info[k].qqqq);
+ at z
+
+ at x [30.570] l.11638 - pTeX:
+ at d current_character_being_worked_on==k+bc-fmem_ptr
+ at y
+ at d current_character_being_worked_on==k-char_base[f]
+ at z
+
+ at x [30.573] l.11704 - pTeX: jfm
+ if a>128 then
+ begin if 256*c+d>=nl then abort;
+ if a=255 then if k=lig_kern_base[f] then bchar:=b;
+ end
+ else begin if b<>bchar then check_existence(b);
+ if c<128 then check_existence(d) {check ligature}
+ else if 256*(c-128)+d>=nk then abort; {check kern}
+ if a<128 then if k-lig_kern_base[f]+a+1>=nl then abort;
+ end;
+ end;
+ at y
+ if a>128 then
+ begin if 256*c+d>=nl then abort;
+ if a=255 then if k=lig_kern_base[f] then bchar:=b;
+ end
+ else begin if b<>bchar then check_existence(b);
+ if c<128 then begin
+ if jfm_flag<>dir_default then
+ begin if 256*c+d>=ne then abort; end {check glue}
+ else check_existence(d); {check ligature}
+ end
+ else if 256*(c-128)+d>=nk then abort; {check kern}
+ if a<128 then if k-lig_kern_base[f]+a+1>=nl then abort;
+ end;
+ end;
+ at z
+
+ at x [30.574] l.11720 - pTeX: read jfm exten
+for k:=exten_base[f] to param_base[f]-1 do
+ begin store_four_quarters(font_info[k].qqqq);
+ at y
+if jfm_flag<>dir_default then
+ for k:=exten_base[f] to param_base[f]-1 do
+ store_scaled(font_info[k].sc) {NOTE: this area subst for glue program}
+else for k:=exten_base[f] to param_base[f]-1 do
+ begin store_four_quarters(font_info[k].qqqq);
+ at z
+
+ at x [30.576] l.11765 - pTeX: adjust ctype_base
+adjust(char_base); adjust(width_base); adjust(lig_kern_base);
+ at y
+adjust(ctype_base);
+adjust(char_base); adjust(width_base); adjust(lig_kern_base);
+ at z
+
+ at x [30.577] l.11778 - pTeX: jfont, tfont
+if cur_cmd=def_font then f:=cur_font
+ at y
+if cur_cmd=def_jfont then f:=cur_jfont
+else if cur_cmd=def_tfont then f:=cur_tfont
+else if cur_cmd=def_font then f:=cur_font
+ at z
+
+ at x [30.581]
+ at p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
+ at y
+ at d print_lc_hex(#)==l:=#;
+ if l<10 then print_char(l+"0")@+else print_char(l-10+"a")
+
+ at p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
+var @!l:0..255; {small indices or counters}
+ at z
+ at x [30.581]
+ print_ASCII(c); print(" in font ");
+ at y
+ if (c<" ")or(c>"~") then
+ begin print_char("^"); print_char("^");
+ if c<64 then print_char(c+64)
+ else if c<128 then print_char(c-64)
+ else begin print_lc_hex(c div 16); print_lc_hex(c mod 16); end
+ end
+ else print_ASCII(c);
+ print(" in font ");
+ at z
+
+ at x [30.???]
+@ Here is a function that returns a pointer to a character node for a
+ at y
+@ Another warning for (u)\pTeX.
+
+ at p procedure char_warning_jis(@!f:internal_font_number;@!jc:KANJI_code);
+begin if tracing_lost_chars>0 then
+ begin begin_diagnostic;
+ print_nl("Character "); print_kanji(jc); print(" (");
+ print_hex(jc); print(") cannot be typeset in JIS-encoded JFM ");
+ slow_print(font_name[f]);
+ print_char(","); print_nl("so I use .notdef glyph instead.");
+ end_diagnostic(false);
+ end;
+end;
+
+@ Here is a function that returns a pointer to a character node for a
+ at z
+
+ at x [31.586] l.12189 - pTeX: define set2
+ at d set1=128 {typeset a character and move right}
+ at y
+ at d set1=128 {typeset a character and move right}
+ at d set2=129 {typeset a character and move right}
+ at z
+ at x [31.586] l.12214 - pTeX: define dirchg
+ at d post_post=249 {postamble ending}
+ at y
+ at d post_post=249 {postamble ending}
+ at d dirchg=255 {direction change}
+ at z
+
+ at x [31.587] l.12246 - pTeX: ex_id_byte
+ at d id_byte=2 {identifies the kind of \.{DVI} files described here}
+ at y
+ at d id_byte=2 {identifies the kind of \.{DVI} files described here}
+ at d ex_id_byte=3 {identifies the kind of extended \.{DVI} files}
+ at z
+
+ at x [32.590] l.12329 - pTeX: ex_id_byte: This dvi is extended!
+@ The last part of the postamble, following the |post_post| byte that
+signifies the end of the font definitions, contains |q|, a pointer to the
+|post| command that started the postamble. An identification byte, |i|,
+comes next; this currently equals~2, as in the preamble.
+ at y
+@ The last part of the postamble, following the |post_post| byte that
+signifies the end of the font definitions, contains |q|, a pointer to the
+|post| command that started the postamble. An identification byte, |i|,
+comes next; this equals~2 or~3. If \pTeX\ primitives are not used then the
+identification byte equals~2, othercase this is set to~3.
+ at z
+
+ at x [32.592] l.12405 - pTeX:
+ {character and font in current |char_node|}
+@!c:quarterword;
+@!f:internal_font_number;
+ at y
+ {character and font in current |char_node|}
+@!c:quarterword;
+@!f:internal_font_number;
+@!dir_used:boolean; {Is this dvi extended?}
+ at z
+
+ at x [32.593] l.12414 - pTeX: dir_used: Is this dvi extended?
+doing_leaders:=false; dead_cycles:=0; cur_s:=-1;
+ at y
+doing_leaders:=false; dead_cycles:=0; cur_s:=-1; dir_used:=false;
+ at z
+
+ at x [32.617] l.12846 - pTeX: Initialize dvi_dir as shipout begins
+dvi_h:=0; dvi_v:=0; cur_h:=h_offset; dvi_f:=null_font;
+ at y
+dvi_h:=0; dvi_v:=0; cur_h:=h_offset; dvi_f:=null_font;
+dvi_dir:=dir_yoko; cur_dir_hv:=dvi_dir;
+ at z
+
+ at x [32.619] l.12892 - pTeX: hlist_out Kanji, disp_node
+procedure hlist_out; {output an |hlist_node| box}
+label reswitch, move_past, fin_rule, next_p, continue, found;
+var base_line: scaled; {the baseline coordinate for this box}
+ at y
+procedure hlist_out; {output an |hlist_node| box}
+label reswitch, move_past, fin_rule, next_p, continue, found;
+var base_line: scaled; {the baseline coordinate for this box}
+@!disp: scaled; {displacement}
+@!save_dir:eight_bits; {what |dvi_dir| should pop to}
+@!jc:KANJI_code; {temporary register for KANJI codes}
+@!ksp_ptr:pointer; {position of |auto_spacing_glue| in the hlist}
+ at z
+ at x [32.619] l.12913 - pTeX: hlist_out Kanji, disp_node
+incr(cur_s);
+if cur_s>0 then dvi_out(push);
+if cur_s>max_push then max_push:=cur_s;
+save_loc:=dvi_offset+dvi_ptr; base_line:=cur_v; left_edge:=cur_h;
+ at y
+ksp_ptr:=space_ptr(this_box);
+incr(cur_s);
+if cur_s>0 then dvi_out(push);
+if cur_s>max_push then max_push:=cur_s;
+save_loc:=dvi_offset+dvi_ptr;
+synch_dir;
+base_line:=cur_v; left_edge:=cur_h; disp:=0;
+ at z
+
+ at x [32.622] l.12945 - pTeX: chain
+@<Output node |p| for |hlist_out|...@>=
+reswitch: if is_char_node(p) then
+ begin synch_h; synch_v;
+ repeat f:=font(p); c:=character(p);
+ if f<>dvi_f then @<Change font |dvi_f| to |f|@>;
+ if font_ec[f]>=qo(c) then if font_bc[f]<=qo(c) then
+ if char_exists(orig_char_info(f)(c)) then {N.B.: not |char_info|}
+ begin if c>=qi(128) then dvi_out(set1);
+ dvi_out(qo(c));@/
+ cur_h:=cur_h+char_width(f)(orig_char_info(f)(c));
+ goto continue;
+ end;
+ if mltex_enabled_p then
+ @<Output a substitution, |goto continue| if not possible@>;
+continue:
+ p:=link(p);
+ until not is_char_node(p);
+ dvi_h:=cur_h;
+ end
+else @<Output the non-|char_node| |p| for |hlist_out|
+ and move to the next node@>
+ at y
+@<Output node |p| for |hlist_out|...@>=
+reswitch: if is_char_node(p) then
+ begin synch_h; synch_v;
+ chain:=false;
+ repeat f:=font(p); c:=character(p);
+ if f<>dvi_f then @<Change font |dvi_f| to |f|@>;
+ if font_dir[f]=dir_default then
+ begin chain:=false;
+ if font_ec[f]>=qo(c) then if font_bc[f]<=qo(c) then
+ if char_exists(orig_char_info(f)(c)) then {N.B.: not |char_info|}
+ begin if c>=qi(128) then dvi_out(set1);
+ dvi_out(qo(c));@/
+ cur_h:=cur_h+char_width(f)(orig_char_info(f)(c));
+ goto continue;
+ end;
+ if mltex_enabled_p then
+ @<Output a substitution, |goto continue| if not possible@>;
+continue:
+ end
+ else
+ begin if chain=false then chain:=true
+ else begin cur_h:=cur_h+width(ksp_ptr);
+ if g_sign<>normal then
+ begin if g_sign=stretching then
+ begin if stretch_order(ksp_ptr)=g_order then
+ cur_h:=cur_h+round(float(glue_set(this_box))*stretch(ksp_ptr));
+@^real multiplication@>
+ end
+ else
+ begin if shrink_order(ksp_ptr)=g_order then
+ cur_h:=cur_h-round(float(glue_set(this_box))*shrink(ksp_ptr));
+@^real multiplication@>
+ end;
+ end;
+ synch_h;
+ end;
+ p:=link(p);
+ jc:=KANJI(info(p));
+ if font_enc[f]=2 then {Unicode TFM}
+ jc:=toUCS(jc)
+ else if font_enc[f]=1 then {JIS-encoded TFM}
+ begin if toJIS(jc)=0 then char_warning_jis(f,jc);
+ jc:=toJIS(jc); end
+ else
+ jc:=toDVI(jc);
+ dvi_out(set2); dvi_out(Hi(jc)); dvi_out(Lo(jc));
+ cur_h:=cur_h+char_width(f)(orig_char_info(f)(c)); {not |jc|}
+ end;
+ dvi_h:=cur_h; p:=link(p);
+ until not is_char_node(p);
+ chain:=false;
+ end
+else @<Output the non-|char_node| |p| for |hlist_out|
+ and move to the next node@>
+ at z
+
+ at x [32.623] l.12982 - pTeX: disp_node, dir_node
+@ @<Output the non-|char_node| |p| for |hlist_out|...@>=
+begin case type(p) of
+hlist_node,vlist_node:@<Output a box in an hlist@>;
+rule_node: begin rule_ht:=height(p); rule_dp:=depth(p); rule_wd:=width(p);
+ goto fin_rule;
+ end;
+whatsit_node: @<Output the whatsit node |p| in an hlist@>;
+ at y
+@ @<Output the non-|char_node| |p| for |hlist_out|...@>=
+begin case type(p) of
+hlist_node,vlist_node,dir_node:@<Output a box in an hlist@>;
+rule_node: begin rule_ht:=height(p); rule_dp:=depth(p); rule_wd:=width(p);
+ goto fin_rule;
+ end;
+whatsit_node: @<Output the whatsit node |p| in an hlist@>;
+disp_node: begin disp:=disp_dimen(p); cur_v:=base_line+disp; end;
+ at z
+
+ at x [32.624] l.13000 - pTeX: output a box(and dir_node) with disp
+@ @<Output a box in an hlist@>=
+if list_ptr(p)=null then cur_h:=cur_h+width(p)
+else begin save_h:=dvi_h; save_v:=dvi_v;
+ cur_v:=base_line+shift_amount(p); {shift the box down}
+ at y
+@ @<Output a box in an hlist@>=
+if list_ptr(p)=null then cur_h:=cur_h+width(p)
+else begin save_h:=dvi_h; save_v:=dvi_v; save_dir:=dvi_dir;
+ cur_v:=base_line+disp+shift_amount(p); {shift the box down}
+ at z
+ at x [32.624] l.13005 - pTeX: output a box(and dir_node) with disp
+ if type(p)=vlist_node then vlist_out at +else hlist_out;
+ dvi_h:=save_h; dvi_v:=save_v;
+ cur_h:=edge+width(p); cur_v:=base_line;
+ end
+ at y
+ case type(p) of
+ hlist_node:hlist_out;
+ vlist_node:vlist_out;
+ dir_node:dir_out;
+ endcases;
+ dvi_h:=save_h; dvi_v:=save_v; dvi_dir:=save_dir;
+ cur_h:=edge+width(p); cur_v:=base_line+disp; cur_dir_hv:=save_dir;
+ end
+ at z
+
+ at x [32.625] l.13010 - pTeX: Output a rule with disp
+@ @<Output a rule in an hlist@>=
+if is_running(rule_ht) then rule_ht:=height(this_box);
+if is_running(rule_dp) then rule_dp:=depth(this_box);
+ at y
+@ @<Output a rule in an hlist@>=
+if is_running(rule_ht) then rule_ht:=height(this_box)+disp;
+if is_running(rule_dp) then rule_dp:=depth(this_box)-disp;
+ at z
+
+ at x [32.629] l.13103 - pTeX: Output a leader box(and dir_node) with disp
+@<Output a leader box at |cur_h|, ...@>=
+begin cur_v:=base_line+shift_amount(leader_box); synch_v; save_v:=dvi_v;@/
+synch_h; save_h:=dvi_h; temp_ptr:=leader_box;
+ at y
+@<Output a leader box at |cur_h|, ...@>=
+begin cur_v:=base_line+disp+shift_amount(leader_box); synch_v; save_v:=dvi_v;@/
+synch_h; save_h:=dvi_h; save_dir:=dvi_dir; temp_ptr:=leader_box;
+ at z
+ at x [32.629] l.13107 - pTeX: Output a leader box(and dir_node) with disp
+if type(leader_box)=vlist_node then vlist_out at +else hlist_out;
+doing_leaders:=outer_doing_leaders;
+dvi_v:=save_v; dvi_h:=save_h; cur_v:=base_line;
+cur_h:=save_h+leader_wd+lx;
+end
+ at y
+case type(leader_box) of
+ hlist_node:hlist_out;
+ vlist_node:vlist_out;
+ dir_node:dir_out;
+endcases;
+doing_leaders:=outer_doing_leaders;
+dvi_v:=save_v; dvi_h:=save_h; dvi_dir:=save_dir;
+cur_v:=base_line; cur_h:=save_h+leader_wd+lx; cur_dir_hv:=save_dir;
+end
+ at z
+
+ at x [32.630] l.13133 - pTeX: vlist_out
+begin cur_g:=0; cur_glue:=float_constant(0);
+this_box:=temp_ptr; g_order:=glue_order(this_box);
+g_sign:=glue_sign(this_box); p:=list_ptr(this_box);
+incr(cur_s);
+if cur_s>0 then dvi_out(push);
+if cur_s>max_push then max_push:=cur_s;
+save_loc:=dvi_offset+dvi_ptr; left_edge:=cur_h; cur_v:=cur_v-height(this_box);
+ at y
+@!save_dir:integer; {what |dvi_dir| should pop to}
+begin cur_g:=0; cur_glue:=float_constant(0);
+this_box:=temp_ptr; g_order:=glue_order(this_box);
+g_sign:=glue_sign(this_box); p:=list_ptr(this_box);
+incr(cur_s);
+if cur_s>0 then dvi_out(push);
+if cur_s>max_push then max_push:=cur_s;
+save_loc:=dvi_offset+dvi_ptr;
+synch_dir;
+left_edge:=cur_h; cur_v:=cur_v-height(this_box);
+ at z
+
+ at x [32.632] l.13155 - pTeX: output non-char-node
+@ @<Output the non-|char_node| |p| for |vlist_out|@>=
+begin case type(p) of
+hlist_node,vlist_node:@<Output a box in a vlist@>;
+rule_node: begin rule_ht:=height(p); rule_dp:=depth(p); rule_wd:=width(p);
+ goto fin_rule;
+ end;
+ at y
+@ @<Output the non-|char_node| |p| for |vlist_out|@>=
+begin case type(p) of
+hlist_node,vlist_node,dir_node: @<Output a box in a vlist@>;
+rule_node: begin rule_ht:=height(p); rule_dp:=depth(p); rule_wd:=width(p);
+ goto fin_rule;
+ end;
+ at z
+
+ at x [32.633] l.13175 - pTeX: Output a box in a vlist
+@<Output a box in a vlist@>=
+if list_ptr(p)=null then cur_v:=cur_v+height(p)+depth(p)
+else begin cur_v:=cur_v+height(p); synch_v;
+ save_h:=dvi_h; save_v:=dvi_v;
+ at y
+@<Output a box in a vlist@>=
+if list_ptr(p)=null then cur_v:=cur_v+height(p)+depth(p)
+else begin cur_v:=cur_v+height(p); synch_v;
+ save_h:=dvi_h; save_v:=dvi_v; save_dir:=dvi_dir;
+ at z
+ at x [32.633] l.13181 - pTeX: Output a box in a vlist
+ if type(p)=vlist_node then vlist_out at +else hlist_out;
+ dvi_h:=save_h; dvi_v:=save_v;
+ cur_v:=save_v+depth(p); cur_h:=left_edge;
+ end
+ at y
+ case type(p) of
+ hlist_node:hlist_out;
+ vlist_node:vlist_out;
+ dir_node:dir_out;
+ endcases;
+ dvi_h:=save_h; dvi_v:=save_v; dvi_dir:=save_dir;
+ cur_v:=save_v+depth(p); cur_h:=left_edge; cur_dir_hv:=save_dir;
+ end
+ at z
+
+ at x [32.637] l.13256 - pTeX: Output a leader in a vlist
+@<Output a leader box at |cur_v|, ...@>=
+ at y
+@<Output a leader box at |cur_v|, ...@>=
+ at z
+ at x [32.637] l.13258 - pTeX: Output a leader in a vlist
+cur_v:=cur_v+height(leader_box); synch_v; save_v:=dvi_v;
+temp_ptr:=leader_box;
+outer_doing_leaders:=doing_leaders; doing_leaders:=true;
+if type(leader_box)=vlist_node then vlist_out at +else hlist_out;
+doing_leaders:=outer_doing_leaders;
+dvi_v:=save_v; dvi_h:=save_h; cur_h:=left_edge;
+cur_v:=save_v-height(leader_box)+leader_ht+lx;
+end
+ at y
+cur_v:=cur_v+height(leader_box); synch_v; save_v:=dvi_v; save_dir:=dvi_dir;
+temp_ptr:=leader_box;
+outer_doing_leaders:=doing_leaders; doing_leaders:=true;
+case type(leader_box) of
+ hlist_node:hlist_out;
+ vlist_node:vlist_out;
+ dir_node:dir_out;
+endcases;
+doing_leaders:=outer_doing_leaders;
+dvi_v:=save_v; dvi_h:=save_h; dvi_dir:=save_dir;
+cur_h:=left_edge; cur_v:=save_v-height(leader_box)+leader_ht+lx;
+cur_dir_hv:=save_dir;
+end
+ at z
+
+ at x [32.638] l.13270 - pTeX: ship out
+ at p procedure ship_out(@!p:pointer); {output the box |p|}
+label done;
+var page_loc:integer; {location of the current |bop|}
+ at y
+ at p procedure ship_out(@!p:pointer); {output the box |p|}
+label done;
+var page_loc:integer; {location of the current |bop|}
+@!del_node:pointer; {used when delete the |dir_node| continued box}
+ at z
+ at x [32.640] l.13294 - pTeX: ship out
+@<Ship box |p| out@>;
+ at y
+if type(p)=dir_node then
+ begin del_node:=p; p:=list_ptr(p);
+ delete_glue_ref(space_ptr(del_node));
+ delete_glue_ref(xspace_ptr(del_node));
+ free_node(del_node,box_node_size);
+ end;
+flush_node_list(link(p)); link(p):=null;
+if abs(box_dir(p))<>dir_yoko then p:=new_dir_node(p,dir_yoko);
+@<Ship box |p| out@>;
+ at z
+
+ at x [32.641] l.13327 - pTeX: dir_node
+if type(p)=vlist_node then vlist_out at +else hlist_out;
+ at y
+case type(p) of
+ hlist_node:hlist_out;
+ vlist_node:vlist_out;
+ dir_node:dir_out;
+endcases;
+ at z
+
+ at x [33.642] l.13394 - pTeX: postamble's id_byte
+ @<Output the font definitions for all fonts that were used@>;
+ dvi_out(post_post); dvi_four(last_bop); dvi_out(id_byte);@/
+ at y
+ @<Output the font definitions for all fonts that were used@>;
+ dvi_out(post_post); dvi_four(last_bop);
+ if dir_used then dvi_out(ex_id_byte) else dvi_out(id_byte);@/
+ at z
+
+ at x [33.647] l.13515 - pTeX: cur_kanji_skip, cur_xkanji_skip, last_disp
+@ If the global variable |adjust_tail| is non-null, the |hpack| routine
+also removes all occurrences of |ins_node|, |mark_node|, and |adjust_node|
+items and appends the resulting material onto the list that ends at
+location |adjust_tail|.
+
+@<Glob...@>=
+@!adjust_tail:pointer; {tail of adjustment list}
+ at y
+@ If the global variable |adjust_tail| is non-null, the |hpack| routine
+also removes all occurrences of |ins_node|, |mark_node|, and |adjust_node|
+items and appends the resulting material onto the list that ends at
+location |adjust_tail|.
+
+@<Glob...@>=
+@!adjust_tail:pointer; {tail of adjustment list}
+@!last_disp:scaled; {displacement at end of list}
+@!cur_kanji_skip:pointer;
+@!cur_xkanji_skip:pointer;
+ at z
+
+ at x [33.648] l.13518 - pTeX: cur_kanji_skip, cur_xkanji_skip
+@ @<Set init...@>=adjust_tail:=null; last_badness:=0;
+ at y
+@ @<Set init...@>=adjust_tail:=null; last_badness:=0;
+ cur_kanji_skip:=zero_glue; cur_xkanji_skip:=zero_glue;
+{ koko
+ |incr(glue_ref_count(cur_kanji_skip));|
+ |incr(glue_ref_count(cur_xkanji_skip));|
+}
+ at z
+
+ at x [33.649] l.13522 - pTeX: hpack
+ at p function hpack(@!p:pointer;@!w:scaled;@!m:small_number):pointer;
+label reswitch, common_ending, exit;
+var r:pointer; {the box node that will be returned}
+ at y
+ at p function hpack(@!p:pointer;@!w:scaled;@!m:small_number):pointer;
+label reswitch, common_ending, exit;
+var r:pointer; {the box node that will be returned}
+@!k:pointer; {points to a |kanji_space| specification}
+@!disp:scaled; {displacement}
+ at z
+
+ at x [33.649] l.13535 - pTeX: hpack
+q:=r+list_offset; link(q):=p;@/
+h:=0; @<Clear dimensions to zero@>;
+ at y
+set_box_dir(r)(dir_default);
+space_ptr(r):=cur_kanji_skip; xspace_ptr(r):=cur_xkanji_skip;
+add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
+k:=cur_kanji_skip;
+q:=r+list_offset; link(q):=p;@/
+h:=0; @<Clear dimensions to zero@>;
+disp:=0;
+ at z
+ at x [33.649] l.13537 - pTeX: hpack
+while p<>null do @<Examine node |p| in the hlist, taking account of its effect
+ on the dimensions of the new box, or moving it to the adjustment list;
+ then advance |p| to the next node@>;
+if adjust_tail<>null then link(adjust_tail):=null;
+height(r):=h; depth(r):=d;@/
+@<Determine the value of |width(r)| and the appropriate glue setting;
+ then |return| or |goto common_ending|@>;
+common_ending: @<Finish issuing a diagnostic message
+ for an overfull or underfull hbox@>;
+exit: hpack:=r;
+end;
+ at y
+while p<>null do @<Examine node |p| in the hlist, taking account of its effect
+ on the dimensions of the new box, or moving it to the adjustment list;
+ then advance |p| to the next node@>;
+if adjust_tail<>null then link(adjust_tail):=null;
+height(r):=h; depth(r):=d;@/
+@<Determine the value of |width(r)| and the appropriate glue setting;
+ then |return| or |goto common_ending|@>;
+common_ending:
+ @<Finish issuing a diagnostic message for an overfull or underfull hbox@>;
+exit: last_disp:=disp; hpack:=r;
+end;
+ at z
+
+ at x [33.651] l.13556 - pTeX: dir_node, disp_node, reset chain
+@ @<Examine node |p| in the hlist, taking account of its effect...@>=
+@^inner loop@>
+begin reswitch: while is_char_node(p) do
+ @<Incorporate character dimensions into the dimensions of
+ the hbox that will contain~it, then move to the next node@>;
+if p<>null then
+ begin case type(p) of
+ hlist_node,vlist_node,rule_node,unset_node:
+ @<Incorporate box dimensions into the dimensions of
+ the hbox that will contain~it@>;
+ ins_node,mark_node,adjust_node: if adjust_tail<>null then
+ @<Transfer node |p| to the adjustment list@>;
+ whatsit_node:@<Incorporate a whatsit node into an hbox@>;
+ at y
+@ @<Examine node |p| in the hlist, taking account of its effect...@>=
+@^inner loop@>
+begin reswitch: chain:=false;
+while is_char_node(p) do
+ @<Incorporate character dimensions into the dimensions of
+ the hbox that will contain~it, then move to the next node@>;
+if p<>null then
+ begin case type(p) of
+ hlist_node,vlist_node,dir_node,rule_node,unset_node:
+ @<Incorporate box dimensions into the dimensions of
+ the hbox that will contain~it@>;
+ ins_node,mark_node,adjust_node: if adjust_tail<>null then
+ @<Transfer node |p| to the adjustment list@>;
+ whatsit_node:@<Incorporate a whatsit node into an hbox@>;
+ disp_node:disp:=disp_dimen(p);
+ at z
+
+ at x [33.653] l.13589 - pTeX: displacement
+@<Incorporate box dimensions into the dimensions of the hbox...@>=
+begin x:=x+width(p);
+if type(p)>=rule_node then s:=0 @+else s:=shift_amount(p);
+if height(p)-s>h then h:=height(p)-s;
+if depth(p)+s>d then d:=depth(p)+s;
+end
+ at y
+@<Incorporate box dimensions into the dimensions of the hbox...@>=
+begin x:=x+width(p);
+if type(p)>=rule_node then s:=disp @+else s:=shift_amount(p)+disp;
+if height(p)-s>h then h:=height(p)-s;
+if depth(p)+s>d then d:=depth(p)+s;
+end
+ at z
+
+ at x [33.654] l.13601 - pTeX: auto spacing, displacement
+@<Incorporate character dimensions into the dimensions of the hbox...@>=
+begin f:=font(p); i:=char_info(f)(character(p)); hd:=height_depth(i);
+x:=x+char_width(f)(i);@/
+s:=char_height(f)(hd);@+if s>h then h:=s;
+s:=char_depth(f)(hd);@+if s>d then d:=s;
+p:=link(p);
+end
+ at y
+@<Incorporate character dimensions into the dimensions of the hbox...@>=
+begin f:=font(p); i:=char_info(f)(character(p)); hd:=height_depth(i);
+x:=x+char_width(f)(i);@/
+s:=char_height(f)(hd)-disp; if s>h then h:=s;
+s:=char_depth(f)(hd)+disp; if s>d then d:=s;
+if font_dir[f]<>dir_default then
+ begin p:=link(p);
+ if chain then
+ begin x:=x+width(k);@/
+ o:=stretch_order(k); total_stretch[o]:=total_stretch[o]+stretch(k);
+ o:=shrink_order(k); total_shrink[o]:=total_shrink[o]+shrink(k);
+ end
+ else chain:=true;
+ end
+else chain:=false;
+p:=link(p);
+end
+ at z
+
+ at x [33.668] l.13779 - pTeX: vpackage
+begin last_badness:=0; r:=get_node(box_node_size); type(r):=vlist_node;
+subtype(r):=min_quarterword; shift_amount(r):=0;
+ at y
+begin last_badness:=0; r:=get_node(box_node_size); type(r):=vlist_node;
+subtype(r):=min_quarterword; shift_amount(r):=0; set_box_dir(r)(dir_default);
+space_ptr(r):=zero_glue; xspace_ptr(r):=zero_glue;
+add_glue_ref(zero_glue); add_glue_ref(zero_glue);
+ at z
+
+ at x [33.669] l.13797 - pTeX: dir_node
+@ @<Examine node |p| in the vlist, taking account of its effect...@>=
+begin if is_char_node(p) then confusion("vpack")
+@:this can't happen vpack}{\quad vpack@>
+else case type(p) of
+ hlist_node,vlist_node,rule_node,unset_node:
+ @<Incorporate box dimensions into the dimensions of
+ the vbox that will contain~it@>;
+ at y
+@ @<Examine node |p| in the vlist, taking account of its effect...@>=
+begin if is_char_node(p) then confusion("vpack")
+@:this can't happen vpack}{\quad vpack@>
+else case type(p) of
+ hlist_node,vlist_node,dir_node,rule_node,unset_node:
+ @<Incorporate box dimensions into the dimensions of
+ the vbox that will contain~it@>;
+ at z
+
+ at x [34.681] l.14026 - pTeX: math noad
+ at d noad_size=4 {number of words in a normal noad}
+ at d nucleus(#)==#+1 {the |nucleus| field of a noad}
+ at d supscr(#)==#+2 {the |supscr| field of a noad}
+ at d subscr(#)==#+3 {the |subscr| field of a noad}
+ at y
+\yskip\hang In Japanese, |math_type(q)=math_jchar| means that |fam(q)|
+refers to one of the sixteen kanji font families, and |KANJI(q)| is the
+internal kanji code number.
+@^Japanese extentions@>
+
+ at d noad_size=5 {number of words in a normal noad}
+ at d nucleus(#)==#+1 {the |nucleus| field of a noad}
+ at d supscr(#)==#+2 {the |supscr| field of a noad}
+ at d subscr(#)==#+3 {the |subscr| field of a noad}
+ at d kcode_noad(#)==#+4
+ at d math_kcode(#)==info(#+4) {the |kanji character| field of a noad}
+ at d kcode_noad_nucleus(#)==#+3
+ at d math_kcode_nucleus(#)==info(#+3)
+ {the |kanji character| field offset from nucleus}
+@#
+ at d math_jchar=6
+ at d math_text_jchar=7
+ at z
+
+ at x [35.681] pTeX: explicit box in math mode
+ at d math_char=1 {|math_type| when the attribute is simple}
+ at d sub_box=2 {|math_type| when the attribute is a box}
+ at d sub_mlist=3 {|math_type| when the attribute is a formula}
+ at d math_text_char=4 {|math_type| when italic correction is dubious}
+ at y
+ at d math_char=1 {|math_type| when the attribute is simple}
+ at d sub_box=2 {|math_type| when the attribute is a box}
+ at d sub_exp_box=3 {|math_type| when the attribute is an explicit created box}
+ at d sub_mlist=4 {|math_type| when the attribute is a formula}
+ at d math_text_char=5 {|math_type| when italic correction is dubious}
+
+@<Initialize table entries...@>=
+text_baseline_shift_factor:=1000;
+script_baseline_shift_factor:=700;
+scriptscript_baseline_shift_factor:=500;
+
+ at z
+
+
+ at x [34.683] radical with japanese char
+ at d left_delimiter(#)==#+4 {first delimiter field of a noad}
+ at d right_delimiter(#)==#+5 {second delimiter field of a fraction noad}
+ at d radical_noad=inner_noad+1 {|type| of a noad for square roots}
+ at d radical_noad_size=5 {number of |mem| words in a radical noad}
+ at y
+ at d left_delimiter(#)==#+5 {first delimiter field of a noad}
+ at d right_delimiter(#)==#+4 {second delimiter field of a fraction noad}
+ at d radical_noad=inner_noad+1 {|type| of a noad for square roots}
+ at d radical_noad_size=6 {number of |mem| words in a radical noad}
+ at z
+
+ at x [34.686] l.14129 - pTeX: new_noad
+mem[supscr(p)].hh:=empty_field;
+new_noad:=p;
+ at y
+mem[supscr(p)].hh:=empty_field;
+mem[kcode_noad(p)].hh:=empty_field;
+new_noad:=p;
+ at z
+
+ at x [34.687] accent with japanese char
+ at d accent_noad_size=5 {number of |mem| words in an accent noad}
+ at d accent_chr(#)==#+4 {the |accent_chr| field of an accent noad}
+ at y
+ at d accent_noad_size=6 {number of |mem| words in an accent noad}
+ at d accent_chr(#)==#+5 {the |accent_chr| field of an accent noad}
+ at z
+
+ at x [34.691] l.14236 - pTeX: print_fam_and_char
+procedure print_fam_and_char(@!p:pointer); {prints family and character}
+begin print_esc("fam"); print_int(fam(p)); print_char(" ");
+print_ASCII(qo(character(p)));
+ at y
+procedure print_fam_and_char(@!p:pointer;@!t:small_number);
+ {prints family and character}
+var @!cx:KANJI_code; {temporary register for KANJI}
+begin print_esc("fam"); print_int(fam(p)); print_char(" ");
+if t=math_char then print_ASCII(qo(character(p)))
+else begin KANJI(cx):=math_kcode_nucleus(p); print_kanji(cx);
+ end;
+ at z
+
+ at x [34.692] l.14266 - pTeX: print_subsidiary_data
+ math_char: begin print_ln; print_current_string; print_fam_and_char(p);
+ end;
+ sub_box: show_info; {recursive call}
+ at y
+ math_char, math_jchar: begin print_ln; print_current_string;
+ print_fam_and_char(p,math_type(p));
+ end;
+ sub_box, sub_exp_box: show_info; {recursive call}
+ at z
+
+ at x [34.696] l.14327 - pTeX: print_fam_and_char
+accent_noad: begin print_esc("accent"); print_fam_and_char(accent_chr(p));
+ at y
+accent_noad: begin print_esc("accent");
+ print_fam_and_char(accent_chr(p),math_char);
+ at z
+
+ at x [35.698] pTeX: flush choice_node
+ begin if math_type(nucleus(p))>=sub_box then
+ flush_node_list(info(nucleus(p)));
+ if math_type(supscr(p))>=sub_box then
+ flush_node_list(info(supscr(p)));
+ if math_type(subscr(p))>=sub_box then
+ flush_node_list(info(subscr(p)));
+ at y
+ begin if (math_type(nucleus(p))>=sub_box)
+ and (math_type(nucleus(p))<>math_jchar)
+ and (math_type(nucleus(p))<>math_text_jchar) then
+ flush_node_list(info(nucleus(p)));
+ if math_type(supscr(p))>=sub_box
+ and (math_type(supscr(p))<>math_jchar)
+ and (math_type(supscr(p))<>math_text_jchar) then
+ flush_node_list(info(supscr(p)));
+ if math_type(subscr(p))>=sub_box
+ and (math_type(subscr(p))<>math_jchar)
+ and (math_type(subscr(p))<>math_text_jchar) then
+ flush_node_list(info(subscr(p)));
+ at z
+
+ at x [35.715] l.14687 - pTeX: rebox
+ begin if type(b)=vlist_node then b:=hpack(b,natural);
+ p:=list_ptr(b);
+ if (is_char_node(p))and(link(p)=null) then
+ begin f:=font(p); v:=char_width(f)(char_info(f)(character(p)));
+ if v<>width(b) then link(p):=new_kern(width(b)-v);
+ end;
+ at y
+ begin if type(b)<>hlist_node then b:=hpack(b,natural);
+ p:=list_ptr(b);
+ if is_char_node(p) then
+ if font_dir[font(p)]<>dir_default then
+ begin if link(link(p))=null then
+ begin f:=font(p); v:=char_width(f)(orig_char_info(f)(character(p)));
+ if v<>width(b) then link(link(p)):=new_kern(width(b)-v);
+ end
+ end
+ else if link(p)=null then
+ begin f:=font(p); v:=char_width(f)(orig_char_info(f)(character(p)));
+ if v<>width(b) then link(p):=new_kern(width(b)-v);
+ end;
+ delete_glue_ref(space_ptr(b)); delete_glue_ref(xspace_ptr(b));
+ at z
+
+ at x [36.720] l.14783 - pTeX: clean_box
+function clean_box(@!p:pointer;@!s:small_number):pointer;
+ at y
+function shift_sub_exp_box(@!q:pointer):pointer;
+ { We assume that |math_type(q)=sub_exp_box| }
+ var d: halfword; {displacement}
+ begin
+ if abs(direction)=abs(box_dir(info(q))) then begin
+ if abs(direction)=dir_tate then begin
+ if box_dir(info(q))=dir_tate then d:=t_baseline_shift
+ else d:=y_baseline_shift end
+ else d:=y_baseline_shift;
+ if cur_style<script_style then
+ d:=xn_over_d(d,text_baseline_shift_factor, 1000)
+ else if cur_style<script_script_style then
+ d:=xn_over_d(d,script_baseline_shift_factor, 1000)
+ else
+ d:=xn_over_d(d,scriptscript_baseline_shift_factor, 1000);
+ shift_amount(info(q)):=shift_amount(info(q))-d;
+ end;
+ math_type(q):=sub_box;
+ shift_sub_exp_box:=info(q);
+ end;
+function clean_box(@!p:pointer;@!s:small_number;@!jc:halfword):pointer;
+ at z
+
+ at x [36.720] l.14790 - pTeX: clean_box
+math_char: begin cur_mlist:=new_noad; mem[nucleus(cur_mlist)]:=mem[p];
+ end;
+sub_box: begin q:=info(p); goto found;
+ end;
+ at y
+math_char: begin cur_mlist:=new_noad; mem[nucleus(cur_mlist)]:=mem[p];
+ end;
+math_jchar: begin cur_mlist:=new_noad; mem[nucleus(cur_mlist)]:=mem[p];
+ math_kcode(cur_mlist):=jc;
+ end;
+sub_box: begin q:=info(p); goto found;
+ end;
+sub_exp_box: begin q:=shift_sub_exp_box(p); goto found;
+ end;
+ at z
+
+ at x [36.720] l.14802 - pTeX: clean_box
+found: if is_char_node(q)or(q=null) then x:=hpack(q,natural)
+ else if (link(q)=null)and(type(q)<=vlist_node)and(shift_amount(q)=0) then
+ x:=q {it's already clean}
+ else x:=hpack(q,natural);
+ at y
+found: if is_char_node(q)or(q=null) then x:=hpack(q,natural)
+ else if (link(q)=null)and(type(q)<=dir_node)and(shift_amount(q)=0) then
+ x:=q {it's already clean}
+ else x:=hpack(q,natural);
+ at z
+
+ at x [36.721] l.14814 - pTeX: skip 2nd kanji node
+if is_char_node(q) then
+ begin r:=link(q);
+ at y
+if is_char_node(q) then
+ begin if font_dir[font(q)]<>dir_default then q:=link(q);
+ r:=link(q);
+ at z
+
+ at x [36.722] l.14833 - pTeX: fetch
+else begin if (qo(cur_c)>=font_bc[cur_f])and(qo(cur_c)<=font_ec[cur_f]) then
+ cur_i:=orig_char_info(cur_f)(cur_c)
+ else cur_i:=null_character;
+ if not(char_exists(cur_i)) then
+ begin char_warning(cur_f,qo(cur_c));
+ math_type(a):=empty; cur_i:=null_character;
+ end;
+ end;
+ at y
+else begin if font_dir[cur_f]<>dir_default then
+ cur_c:=qi(get_jfm_pos(KANJI(math_kcode_nucleus(a)),cur_f));
+ if (qo(cur_c)>=font_bc[cur_f])and(qo(cur_c)<=font_ec[cur_f]) then
+ cur_i:=orig_char_info(cur_f)(cur_c)
+ else cur_i:=null_character;
+ if not(char_exists(cur_i)) then
+ begin char_warning(cur_f,qo(cur_c));
+ math_type(a):=empty; cur_i:=null_character;
+ end;
+ end;
+ at z
+
+ at x [36.726] l.14892 - pTeX: mlist_to_hlist
+var mlist:pointer; {beginning of the given list}
+@!penalties:boolean; {should penalty nodes be inserted?}
+@!style:small_number; {the given style}
+ at y
+var mlist:pointer; {beginning of the given list}
+@!penalties:boolean; {should penalty nodes be inserted?}
+@!style:small_number; {the given style}
+@!u:pointer; {temporary register}
+ at z
+
+ at x [36.726] l.14913 - pTeX: mlist_to_hlist
+@<Make a second pass over the mlist, removing all noads and inserting the
+ proper spacing and penalties@>;
+end;
+ at y
+@<Make a second pass over the mlist, removing all noads and inserting the
+ proper spacing and penalties@>;
+p:=new_null_box; link(p):=link(temp_head);
+adjust_hlist(p,false); link(temp_head):=link(p);
+delete_glue_ref(space_ptr(p)); delete_glue_ref(xspace_ptr(p));
+free_node(p,box_node_size);
+end;
+ at z
+
+ at x [36.727] l.14928 - pTeX: free box
+free_node(z,box_node_size);
+ at y
+delete_glue_ref(space_ptr(z)); delete_glue_ref(xspace_ptr(z));
+free_node(z,box_node_size);
+ at z
+
+ at x [36.730] l.14976 - pTeX: free box: disp_node
+kern_node: begin math_kern(q,cur_mu); goto done_with_node;
+ end;
+ at y
+kern_node: begin math_kern(q,cur_mu); goto done_with_node;
+ end;
+disp_node: goto done_with_node;
+ at z
+
+ at x [36.734] l.15046 - pTeX: make_over:clean_box
+ overbar(clean_box(nucleus(q),cramped_style(cur_style)),@|
+ at y
+ overbar(clean_box(nucleus(q),cramped_style(cur_style),math_kcode(q)),@|
+ at z
+
+ at x [36.735] l.15055 - pTeX: make_under:clean_box
+begin x:=clean_box(nucleus(q),cur_style);
+ at y
+begin x:=clean_box(nucleus(q),cur_style,math_kcode(q));
+ at z
+
+ at x [36.736] l.15069 - pTeX: make_under:clean_box
+if type(v)<>vlist_node then confusion("vcenter");
+ at y
+if type(v)=dir_node then
+ begin if type(list_ptr(v))<>vlist_node then confusion("dircenter")
+ end
+else begin if type(v)<>vlist_node then confusion("vcenter")
+ end;
+ at z
+
+ at x [36.737] l.15089 - pTeX: make_radical:clean_box
+begin x:=clean_box(nucleus(q),cramped_style(cur_style));
+ at y
+begin x:=clean_box(nucleus(q),cramped_style(cur_style),math_kcode(q));
+ at z
+
+ at x [36.738] l.15123 - pTeX: make_math_accent:clean_box
+ x:=clean_box(nucleus(q),cramped_style(cur_style)); w:=width(x); h:=height(x);
+ at y
+ x:=clean_box(nucleus(q),cramped_style(cur_style),math_kcode(q));
+ w:=width(x); h:=height(x);
+ at z
+
+ at x [36.742] l.15186 - pTeX: make_math_accent:clean_box
+x:=clean_box(nucleus(q),cur_style); delta:=delta+height(x)-h; h:=height(x);
+ at y
+x:=clean_box(nucleus(q),cur_style,math_kcode(q));
+delta:=delta+height(x)-h; h:=height(x);
+ at z
+
+ at x [36.744] l.15211 - pTeX: make_fraction:clean_box
+x:=clean_box(numerator(q),num_style(cur_style));
+z:=clean_box(denominator(q),denom_style(cur_style));
+ at y
+x:=clean_box(numerator(q),num_style(cur_style),math_kcode(q));
+z:=clean_box(denominator(q),denom_style(cur_style),math_kcode(q));
+ at z
+
+ at x [36.749] l.15304 - pTeX: make_op:clean_box
+ delta:=char_italic(cur_f)(cur_i); x:=clean_box(nucleus(q),cur_style);
+ at y
+ delta:=char_italic(cur_f)(cur_i);
+ x:=clean_box(nucleus(q),cur_style,math_kcode(q));
+ at z
+
+ at x [36.750] l.15321 - pTeX: make_op:clean_box
+begin x:=clean_box(supscr(q),sup_style(cur_style));
+y:=clean_box(nucleus(q),cur_style);
+z:=clean_box(subscr(q),sub_style(cur_style));
+ at y
+begin x:=clean_box(supscr(q),sup_style(cur_style),math_kcode(q));
+y:=clean_box(nucleus(q),cur_style,math_kcode(q));
+z:=clean_box(subscr(q),sub_style(cur_style),math_kcode(q));
+ at z
+
+ at x [36.751] l.15342 - pTeX: free box node
+ begin free_node(x,box_node_size); list_ptr(v):=y;
+ end
+ at y
+ begin
+ delete_glue_ref(space_ptr(x)); delete_glue_ref(xspace_ptr(x));
+ free_node(x,box_node_size); list_ptr(v):=y;
+ end
+ at z
+
+ at x [36.751] l.15350 - pTeX: free box node
+if math_type(subscr(q))=empty then free_node(z,box_node_size)
+ at y
+if math_type(subscr(q))=empty then begin
+ delete_glue_ref(space_ptr(z)); delete_glue_ref(xspace_ptr(z));
+ free_node(z,box_node_size)
+end
+ at z
+
+ at x [36.752] l.15369 - pTeX: make_ord
+procedure make_ord(@!q:pointer);
+label restart,exit;
+var a:integer; {address of lig/kern instruction}
+@!p,@!r:pointer; {temporary registers for list manipulation}
+begin restart:@t@>@;@/
+if math_type(subscr(q))=empty then if math_type(supscr(q))=empty then
+ if math_type(nucleus(q))=math_char then
+ begin p:=link(q);
+ if p<>null then if (type(p)>=ord_noad)and(type(p)<=punct_noad) then
+ if math_type(nucleus(p))=math_char then
+ if fam(nucleus(p))=fam(nucleus(q)) then
+ begin math_type(nucleus(q)):=math_text_char;
+ fetch(nucleus(q));
+ if char_tag(cur_i)=lig_tag then
+ begin a:=lig_kern_start(cur_f)(cur_i);
+ cur_c:=character(nucleus(p));
+ cur_i:=font_info[a].qqqq;
+ if skip_byte(cur_i)>stop_flag then
+ begin a:=lig_kern_restart(cur_f)(cur_i);
+ cur_i:=font_info[a].qqqq;
+ end;
+ loop at + begin @<If instruction |cur_i| is a kern with |cur_c|, attach
+ the kern after~|q|; or if it is a ligature with |cur_c|, combine
+ noads |q| and~|p| appropriately; then |return| if the cursor has
+ moved past a noad, or |goto restart|@>;
+ if skip_byte(cur_i)>=stop_flag then return;
+ a:=a+qo(skip_byte(cur_i))+1;
+ cur_i:=font_info[a].qqqq;
+ end;
+ end;
+ end;
+ end;
+exit:end;
+ at y
+procedure make_ord(@!q:pointer);
+label restart,exit;
+var a:integer; {address of lig/kern instruction}
+@!gp,@!gq,@!p,@!r:pointer; {temporary registers for list manipulation}
+@!rr:halfword;
+begin restart:@t@>@;@/
+if (math_type(subscr(q))=empty)and(math_type(supscr(q))=empty)and@|
+((math_type(nucleus(q))=math_char)or(math_type(nucleus(q))=math_jchar)) then
+ begin p:=link(q);
+ if p<>null then if (type(p)>=ord_noad)and(type(p)<=punct_noad) then
+ if fam(nucleus(p))=fam(nucleus(q)) then
+ if math_type(nucleus(p))=math_char then
+ begin math_type(nucleus(q)):=math_text_char;
+ fetch(nucleus(q));
+ if char_tag(cur_i)=lig_tag then
+ begin a:=lig_kern_start(cur_f)(cur_i);
+ cur_c:=character(nucleus(p));
+ cur_i:=font_info[a].qqqq;
+ if skip_byte(cur_i)>stop_flag then
+ begin a:=lig_kern_restart(cur_f)(cur_i);
+ cur_i:=font_info[a].qqqq;
+ end;
+ loop at + begin @<If instruction |cur_i| is a kern with |cur_c|, attach
+ the kern after~|q|; or if it is a ligature with |cur_c|, combine
+ noads |q| and~|p| appropriately; then |return| if the cursor has
+ moved past a noad, or |goto restart|@>;
+ if skip_byte(cur_i)>=stop_flag then return;
+ a:=a+qo(skip_byte(cur_i))+1;
+ cur_i:=font_info[a].qqqq;
+ end;
+ end;
+ end
+ else if math_type(nucleus(p))=math_jchar then
+ begin math_type(nucleus(q)):=math_text_jchar;
+ fetch(nucleus(p)); a:=cur_c; fetch(nucleus(q));
+ if char_tag(cur_i)=gk_tag then
+ begin cur_c:=a; a:=glue_kern_start(cur_f)(cur_i);
+ {|cur_c|:=qi(|get_jfm_pos|(|math_kcode|(p),
+ |fam_fnt|(fam(nucleus(p))+|cur_size|)));}
+ cur_i:=font_info[a].qqqq;
+ if skip_byte(cur_i)>stop_flag then {huge glue/kern table rearranged}
+ begin a:=glue_kern_restart(cur_f)(cur_i);
+ cur_i:=font_info[a].qqqq;
+ end;
+ loop at + begin
+ if next_char(cur_i)=cur_c then if skip_byte(cur_i)<=stop_flag then
+ if op_byte(cur_i)<kern_flag then
+ begin gp:=font_glue[cur_f]; rr:=op_byte(cur_i)*256+rem_byte(cur_i);
+ if gp<>null then begin
+ while((type(gp)<>rr)and(link(gp)<>null)) do begin gp:=link(gp);
+ end;
+ gq:=glue_ptr(gp);
+ end
+ else begin gp:=get_node(small_node_size);
+ font_glue[cur_f]:=gp; gq:=null;
+ end;
+ if gq=null then
+ begin type(gp):=rr; gq:=new_spec(zero_glue); glue_ptr(gp):=gq;
+ a:=exten_base[cur_f]+qi((qo(rr))*3); width(gq):=font_info[a].sc;
+ stretch(gq):=font_info[a+1].sc; shrink(gq):=font_info[a+2].sc;
+ add_glue_ref(gq); link(gp):=get_node(small_node_size);
+ gp:=link(gp); glue_ptr(gp):=null; link(gp):=null;
+ end;
+ p:=new_glue(gq); subtype(p):=jfm_skip+1;
+ link(p):=link(q); link(q):=p; return;
+ end
+ else begin p:=new_kern(char_kern(cur_f)(cur_i));
+ link(p):=link(q); link(q):=p; return;
+ end;
+ if skip_byte(cur_i)>=stop_flag then return;
+ a:=a+qo(skip_byte(cur_i))+1; {SKIP property}
+ cur_i:=font_info[a].qqqq;
+ end;
+ end;
+ end;
+ end;
+exit:end;
+ at z
+
+ at x [36.754] l.15452 - pTeX:
+math_char, math_text_char:
+ at y
+math_char, math_text_char, math_jchar, math_text_jchar:
+ at z
+
+ at x [36.754] pTeX:
+sub_box: p:=info(nucleus(q));
+ at y
+sub_box: p:=info(nucleus(q));
+sub_exp_box: p:=shift_sub_exp_box(nucleus(q));
+ at z
+
+ at x [36.755] l.15475 - pTeX: convert math text to KANJI char_node
+ begin delta:=char_italic(cur_f)(cur_i); p:=new_character(cur_f,qo(cur_c));
+ if (math_type(nucleus(q))=math_text_char)and(space(cur_f)<>0) then
+ delta:=0; {no italic correction in mid-word of text font}
+ if (math_type(subscr(q))=empty)and(delta<>0) then
+ begin link(p):=new_kern(delta); delta:=0;
+ at y
+ begin delta:=char_italic(cur_f)(cur_i); p:=new_character(cur_f,qo(cur_c));
+ u:=p;
+ if font_dir[cur_f]<>dir_default then begin
+ link(u):=get_avail; u:=link(u); info(u):=math_kcode(q);
+ end;
+ if ((math_type(nucleus(q))=math_text_char)or
+ (math_type(nucleus(q))=math_text_jchar))and(space(cur_f)<>0) then
+ delta:=0; {no italic correction in mid-word of text font}
+ if (math_type(subscr(q))=empty)and(delta<>0) then begin
+ link(u):=new_kern(delta); delta:=0;
+ at z
+
+ at x [36.756] l.15505 - pTeX: free box
+ shift_down:=depth(z)+sub_drop(t);
+ free_node(z,box_node_size);
+ end;
+ at y
+ shift_down:=depth(z)+sub_drop(t);
+ delete_glue_ref(space_ptr(z)); delete_glue_ref(xspace_ptr(z));
+ free_node(z,box_node_size);
+ end;
+ at z
+
+ at x [36.757] l.15526 - pTeX: make_scripts:clean_box
+begin x:=clean_box(subscr(q),sub_style(cur_style));
+ at y
+begin x:=clean_box(subscr(q),sub_style(cur_style),math_kcode(q));
+ at z
+
+ at x [36.758] l.15538 - pTeX: make_scripts:clean_box
+begin x:=clean_box(supscr(q),sup_style(cur_style));
+ at y
+begin x:=clean_box(supscr(q),sup_style(cur_style),math_kcode(q));
+ at z
+
+ at x [36.758] l.15555 - pTeX: make_scripts:clean_box
+begin y:=clean_box(subscr(q),sub_style(cur_style));
+ at y
+begin y:=clean_box(subscr(q),sub_style(cur_style),math_kcode(q));
+ at z
+
+ at x [36.760] l.15616 - pTeX: disp_node
+othercases confusion("mlist3")
+ at y
+disp_node: begin link(p):=q; p:=q; q:=link(q); link(p):=null; goto done;
+ end;
+othercases confusion("mlist3")
+ at z
+
+ at x [37.???] init_span: pTeX: init inhibit_glue_flag
+if mode=-hmode then space_factor:=1000
+else begin prev_depth:=ignore_depth; normal_paragraph;
+ end;
+ at y
+if mode=-hmode then space_factor:=1000
+else begin prev_depth:=ignore_depth; normal_paragraph;
+ end;
+inhibit_glue_flag:=false;
+ at z
+
+ at x [37.796] l.16276 - pTeX: call adjust_hlist
+ begin adjust_tail:=cur_tail; u:=hpack(link(head),natural); w:=width(u);
+ at y
+ begin adjust_tail:=cur_tail; adjust_hlist(head,false);
+ delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
+ cur_kanji_skip:=space_ptr(head); cur_xkanji_skip:=xspace_ptr(head);
+ add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
+ u:=hpack(link(head),natural); w:=width(u);
+ at z
+
+ at x [37.???] l.????? - increased max_quarterword
+if n>max_quarterword then confusion("256 spans"); {this can happen, but won't}
+@^system dependencies@>
+@:this can't happen 256 spans}{\quad 256 spans@>
+ at y
+if n>max_quarterword then confusion("too many spans");
+ {this can happen, but won't}
+@^system dependencies@>
+@:this can't happen too many spans}{\quad too many spans@>
+ at z
+
+ at x [37.799] l.16331 - fin_row: pTeX: call adjust_hlist
+ begin p:=hpack(link(head),natural);
+ at y
+ begin adjust_hlist(head,false);
+ delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
+ cur_kanji_skip:=space_ptr(head); cur_xkanji_skip:=xspace_ptr(head);
+ add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
+ p:=hpack(link(head),natural);
+ at z
+
+ at x [37.799] l.16331 - fin_row: init inhibit_glue_flag
+ link(tail):=p; tail:=p; space_factor:=1000;
+ at y
+ link(tail):=p; tail:=p; space_factor:=1000;
+ inhibit_glue_flag:=false;
+ at z
+
+ at x [37.800] l.16353 - pTeX: call adjust_hlist
+var @!p,@!q,@!r,@!s,@!u,@!v: pointer; {registers for the list operations}
+ at y
+var @!p,@!q,@!r,@!s,@!u,@!v,@!z: pointer; {registers for the list operations}
+ at z
+
+ at x [37.804] l.16456 - pTeX: call adjust_hlist
+ p:=hpack(preamble,saved(1),saved(0)); overfull_rule:=rule_save;
+ at y
+ z:=new_null_box; link(z):=preamble;
+ adjust_hlist(z,false);
+ delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
+ cur_kanji_skip:=space_ptr(z); cur_xkanji_skip:=xspace_ptr(z);
+ add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
+ p:=hpack(preamble,saved(1),saved(0)); overfull_rule:=rule_save;
+ delete_glue_ref(space_ptr(z)); delete_glue_ref(xspace_ptr(z));
+ free_node(z,box_node_size);
+ at z
+
+ at x [37.807] l.16499 - pTeX: unset box -> BOX
+glue_order(q):=glue_order(p); glue_sign(q):=glue_sign(p);
+glue_set(q):=glue_set(p); shift_amount(q):=o;
+r:=link(list_ptr(q)); s:=link(list_ptr(p));
+ at y
+set_box_dir(q)(direction);
+glue_order(q):=glue_order(p); glue_sign(q):=glue_sign(p);
+glue_set(q):=glue_set(p); shift_amount(q):=o;
+r:=link(list_ptr(q)); s:=link(list_ptr(p));
+ at z
+
+ at x [37.809] l.16541 - pTeX: unset box -> BOX
+s:=link(s); link(u):=new_null_box; u:=link(u); t:=t+width(s);
+if mode=-vmode then width(u):=width(s)@+else
+ begin type(u):=vlist_node; height(u):=width(s);
+ end
+ at y
+s:=link(s); link(u):=new_null_box; u:=link(u); t:=t+width(s);
+if mode=-vmode then width(u):=width(s)@+else
+ begin type(u):=vlist_node; height(u):=width(s);
+ end;
+set_box_dir(u)(direction)
+ at z
+
+ at x [37.810] l.16564 - pTeX: unset box -> BOX
+width(r):=w; type(r):=hlist_node;
+end
+ at y
+width(r):=w; type(r):=hlist_node;
+set_box_dir(r)(direction);
+end
+ at z
+
+ at x [37.811] l.16585 - pTeX: unset box -> BOX
+height(r):=w; type(r):=vlist_node;
+ at y
+height(r):=w; type(r):=vlist_node;
+set_box_dir(r)(direction);
+ at z
+
+ at x [38.816] l.16687 - pTeX: init chain, delete disp_node
+link(temp_head):=link(head);
+if is_char_node(tail) then tail_append(new_penalty(inf_penalty))
+else if type(tail)<>glue_node then tail_append(new_penalty(inf_penalty))
+ at y
+first_use:=true; chain:=false;
+delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
+cur_kanji_skip:=space_ptr(head); cur_xkanji_skip:=xspace_ptr(head);
+add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
+if not is_char_node(tail)and(type(tail)=disp_node) then
+ begin free_node(tail,small_node_size); tail:=prev_node; link(tail):=null
+ end;
+link(temp_head):=link(head);
+if is_char_node(tail) then tail_append(new_penalty(inf_penalty))
+else if type(tail)<>glue_node then tail_append(new_penalty(inf_penalty))
+ at z
+
+ at x [38.828] l.16946 - pTeX: Global variable |chain|
+@!cur_p:pointer; {the current breakpoint under consideration}
+ at y
+@!cur_p:pointer; {the current breakpoint under consideration}
+@!chain:boolean; {chain current line and next line?}
+ at z
+
+% chain \xA4\xAC\xBF\xBF\xA4ξ\xEC\xB9硢\xB8\xE5\xA4\xED\xA4\xCB cur_kanji_skip \xA4\xAC\xC1\xDE\xC6\xFE\xA4\xB5\xA4\xEC\xA4\xEB\xA4Τǡ\xA2\xA4\xB3\xA4\xB3\xA4\xC7
+% break_width \xA4\xAB\xA4\xE9\xB0\xFA\xA4\xA4\xA4Ƥ\xAA\xA4\xAB\xA4\xCA\xA4\xB1\xA4\xEC\xA4Фʤ\xE9\xA4ʤ\xA4\xA1\xA3
+ at x [38.837] l.17125 - pTeX: add kanji_skip width, ita_kern
+begin no_break_yet:=false; do_all_six(set_break_width_to_background);
+s:=cur_p;
+if break_type>unhyphenated then if cur_p<>null then
+ @<Compute the discretionary |break_width| values@>;
+while s<>null do
+ begin if is_char_node(s) then goto done;
+ at y
+begin no_break_yet:=false; do_all_six(set_break_width_to_background);
+s:=cur_p;
+if break_type>unhyphenated then if cur_p<>null then
+ @<Compute the discretionary |break_width| values@>;
+while s<>null do
+ begin if is_char_node(s) then
+ begin if chain then
+ begin break_width[1]:=break_width[1]-width(cur_kanji_skip);
+ break_width[2+stretch_order(cur_kanji_skip)]:=
+ break_width[2+stretch_order(cur_kanji_skip)]-stretch(cur_kanji_skip);
+ break_width[6]:=break_width[6]-shrink(cur_kanji_skip);
+ end;
+ goto done end;
+ at z
+
+ at x [38.837] l.17135 - pTeX:
+ kern_node: if subtype(s)<>explicit then goto done
+ else break_width[1]:=break_width[1]-width(s);
+ at y
+ kern_node: if (subtype(s)<>explicit)and(subtype(s)<>ita_kern) then
+ goto done
+ else break_width[1]:=break_width[1]-width(s);
+ at z
+
+ at x [38.841] l.17186 - pTeX:
+if is_char_node(v) then
+ begin f:=font(v);
+ break_width[1]:=break_width[1]-char_width(f)(char_info(f)(character(v)));
+ end
+else case type(v) of
+ ligature_node: begin f:=font(lig_char(v));@/
+ break_width[1]:=@|break_width[1]-
+ char_width(f)(char_info(f)(character(lig_char(v))));
+ end;
+ hlist_node,vlist_node,rule_node,kern_node:
+ break_width[1]:=break_width[1]-width(v);
+ othercases confusion("disc1")
+@:this can't happen disc1}{\quad disc1@>
+ endcases
+ at y
+if is_char_node(v) then
+ begin f:=font(v);
+ break_width[1]:=break_width[1]-char_width(f)(orig_char_info(f)(character(v)));
+ if font_dir[f]<>dir_default then v:=link(v);
+ end
+else case type(v) of
+ ligature_node: begin f:=font(lig_char(v));@/
+ break_width[1]:=@|break_width[1]-
+ char_width(f)(orig_char_info(f)(character(lig_char(v))));
+ end;
+ hlist_node,vlist_node,dir_node,rule_node,kern_node:
+ break_width[1]:=break_width[1]-width(v);
+ disp_node: do_nothing;
+ othercases confusion("disc1")
+@:this can't happen disc1}{\quad disc1@>
+ endcases
+ at z
+
+ at x [38.842] l.17204 - pTeX:
+ break_width[1]:=@|break_width[1]+char_width(f)(char_info(f)(character(s)));
+ end
+else case type(s) of
+ ligature_node: begin f:=font(lig_char(s));
+ break_width[1]:=break_width[1]+
+ char_width(f)(char_info(f)(character(lig_char(s))));
+ end;
+ hlist_node,vlist_node,rule_node,kern_node:
+ break_width[1]:=break_width[1]+width(s);
+ at y
+ break_width[1]:=@|break_width[1]+char_width(f)(orig_char_info(f)(character(s)));
+ if font_dir[f]<>dir_default then s:=link(s);
+ end
+else case type(s) of
+ ligature_node: begin f:=font(lig_char(s));
+ break_width[1]:=break_width[1]+
+ char_width(f)(orig_char_info(f)(character(lig_char(s))));
+ end;
+ hlist_node,vlist_node,dir_node,rule_node,kern_node:
+ break_width[1]:=break_width[1]+width(s);
+ disp_node: do_nothing;
+ at z
+
+ at x [38.856] l.17467 - pTeX: print symbolic feasible node
+if cur_p=null then print_esc("par")
+else if type(cur_p)<>glue_node then
+ begin if type(cur_p)=penalty_node then print_esc("penalty")
+ else if type(cur_p)=disc_node then print_esc("discretionary")
+ at y
+if cur_p=null then print_esc("par")
+else if (type(cur_p)<>glue_node)and(not is_char_node(cur_p)) then
+ begin if type(cur_p)=penalty_node then print_esc("penalty")
+ else if type(cur_p)=disc_node then print_esc("discretionary")
+ at z
+
+ at x [39.862] l.17584 - pTeX: local valiable for line breaking
+@!auto_breaking:boolean; {is node |cur_p| outside a formula?}
+@!prev_p:pointer; {helps to determine when glue nodes are breakpoints}
+@!q,@!r,@!s,@!prev_s:pointer; {miscellaneous nodes of temporary interest}
+@!f:internal_font_number; {used when calculating character widths}
+ at y
+@!auto_breaking:boolean; {is node |cur_p| outside a formula?}
+@!prev_p:pointer; {helps to determine when glue nodes are breakpoints}
+@!q,@!r,@!s,@!prev_s:pointer; {miscellaneous nodes of temporary interest}
+@!f,@!post_f:internal_font_number; {used when calculating character widths}
+@!post_p:pointer;
+@!cc:ASCII_code;
+@!first_use:boolean;
+ at z
+
+ at x [39.866] l.17677 - pTeX: dir_node, disp_node, ita_kern
+case type(cur_p) of
+hlist_node,vlist_node,rule_node: act_width:=act_width+width(cur_p);
+ at y
+case type(cur_p) of
+hlist_node,vlist_node,dir_node,rule_node: act_width:=act_width+width(cur_p);
+ at z
+
+ at x [39.866] l.17685 - pTeX:
+kern_node: if subtype(cur_p)=explicit then kern_break
+ else act_width:=act_width+width(cur_p);
+ at y
+kern_node: if (subtype(cur_p)=explicit)or(subtype(cur_p)=ita_kern) then
+ kern_break
+ else act_width:=act_width+width(cur_p);
+ at z
+
+ at x [39.866] l.17694 - pTeX:
+mark_node,ins_node,adjust_node: do_nothing;
+ at y
+disp_node,mark_node,ins_node,adjust_node: do_nothing;
+ at z
+
+% \xA4\xB3\xA4\xB3\xA4\xC7\xA1\xA2Ϣ³\xA4\xB9\xA4\xEB\xB4\xC1\xBB\xFA\xA5\xB3\xA1\xBC\xA5ɴ֤\xCB cur_kanji_skip \xA4\xF2\xC1\xDE\xC6\xFE\xA4\xB9\xA4롣
+% penalty_node \xA4\xE4 box_node \xA4ˤϡ\xA2adjust_hlist \xA5\xEB\xA1\xBC\xA5\xC1\xA5\xF3\xA4ˤ\xE8\xA4äƴ\xFB\xA4˼ºݤ\xCE
+% glue_node \xA4\xAC\xC1\xDE\xC6\xFE\xA4\xB5\xA4\xEC\xA4Ƥ\xA4\xA4\xEB\xA4\xE2\xA4ΤȲ\xBE\xC4ꤷ\xA4\xC6\xA4\xA4\xA4\xEB\xA1\xA3
+% chain \xA4\xCF\xA1\xA2try_break \xA4\xC7 cur_kanji_skip \xA4\xCE\xA5\xA2\xA5\xB8\xA5\xE3\xA5\xB9\xA5ȤΤ\xBF\xA4\xE1\xA4˻Ȥ\xEF\xA4\xEC\xA4롣
+ at x [39.867] l.17708 - pTeX: add kanji char width
+@<Advance \(c)|cur_p| to the node following the present string...@>=
+begin prev_p:=cur_p;
+repeat f:=font(cur_p);
+act_width:=act_width+char_width(f)(char_info(f)(character(cur_p)));
+cur_p:=link(cur_p);
+until not is_char_node(cur_p);
+end
+ at y
+@<Advance \(c)|cur_p| to the node following the present string...@>=
+begin chain:=false;
+if is_char_node(cur_p) then
+ if font_dir[font(cur_p)]<>dir_default then
+ begin case type(prev_p) of
+ hlist_node,vlist_node,dir_node,rule_node,
+ ligature_node,disc_node,math_node: begin
+ cur_p:=prev_p; try_break(0,unhyphenated); cur_p:=link(cur_p);
+ end;
+ othercases do_nothing;
+ endcases;
+ end;
+ prev_p:=cur_p; post_p:=cur_p; post_f:=font(post_p);
+ repeat f:=post_f; cc:=character(cur_p);
+ act_width:=act_width+char_width(f)(orig_char_info(f)(cc));
+ post_p:=link(cur_p);
+ if font_dir[f]<>dir_default then
+ begin prev_p:=cur_p; cur_p:=post_p; post_p:=link(post_p);
+ if is_char_node(post_p) then
+ begin post_f:=font(post_p);
+ if font_dir[post_f]<>dir_default then chain:=true else chain:=false;
+ try_break(0,unhyphenated);
+ end
+ else
+ begin chain:=false;
+ case type(post_p) of
+ hlist_node,vlist_node,dir_node,rule_node,ligature_node,
+ disc_node,math_node: try_break(0,unhyphenated);
+ othercases do_nothing;
+ endcases;
+ end;
+ if chain then
+ begin if first_use then
+ begin check_shrinkage(cur_kanji_skip);
+ first_use:=false;
+ end;
+ act_width:=act_width+width(cur_kanji_skip);@|
+ active_width[2+stretch_order(cur_kanji_skip)]:=@|
+ active_width[2+stretch_order(cur_kanji_skip)]
+ +stretch(cur_kanji_skip);@/
+ active_width[6]:=active_width[6]+shrink(cur_kanji_skip);
+ end;
+ prev_p:=cur_p;
+ end
+ else if is_char_node(post_p) then
+ begin post_f:=font(post_p); chain:=false;
+ if font_dir[post_f]<>dir_default then try_break(0,unhyphenated);
+ end;
+ cur_p:=post_p;
+ until not is_char_node(cur_p);
+chain:=false;
+end
+ at z
+
+ at x [39.868] l.17723 - pTeX: ita_kern
+ else if (type(prev_p)=kern_node)and(subtype(prev_p)<>explicit) then
+ try_break(0,unhyphenated);
+ at y
+ else if type(prev_p)=kern_node then
+ if (subtype(prev_p)<>explicit)and(subtype(prev_p)<>ita_kern) then
+ try_break(0,unhyphenated);
+ at z
+
+ at x [39.871] l.17756 - pTeX: add kanji char width, dir_node width, disp_node
+ disc_width:=disc_width+char_width(f)(char_info(f)(character(s)));
+ end
+else case type(s) of
+ ligature_node: begin f:=font(lig_char(s));
+ disc_width:=disc_width+
+ char_width(f)(char_info(f)(character(lig_char(s))));
+ end;
+ hlist_node,vlist_node,rule_node,kern_node:
+ disc_width:=disc_width+width(s);
+ at y
+ disc_width:=disc_width+char_width(f)(orig_char_info(f)(character(s)));
+ if font_dir[f]<>dir_default then s:=link(s)
+ end
+else case type(s) of
+ ligature_node: begin f:=font(lig_char(s));
+ disc_width:=disc_width+
+ char_width(f)(orig_char_info(f)(character(lig_char(s))));
+ end;
+ hlist_node,vlist_node,dir_node,rule_node,kern_node:
+ disc_width:=disc_width+width(s);
+ disp_node: do_nothing;
+ at z
+
+ at x [39.872] l.17772 - pTeX: add kanji char width, dir_node width, disp_node
+ act_width:=act_width+char_width(f)(char_info(f)(character(s)));
+ end
+else case type(s) of
+ ligature_node: begin f:=font(lig_char(s));
+ act_width:=act_width+
+ char_width(f)(char_info(f)(character(lig_char(s))));
+ end;
+ hlist_node,vlist_node,rule_node,kern_node:
+ act_width:=act_width+width(s);
+ at y
+ act_width:=act_width+char_width(f)(orig_char_info(f)(character(s)));
+ if font_dir[f]<>dir_default then s:=link(s)
+ end
+else case type(s) of
+ ligature_node: begin f:=font(lig_char(s));
+ act_width:=act_width+
+ char_width(f)(orig_char_info(f)(character(lig_char(s))));
+ end;
+ hlist_node,vlist_node,dir_node,rule_node,kern_node:
+ act_width:=act_width+width(s);
+ disp_node: do_nothing;
+ at z
+
+ at x [39.877] l.17879 - pTeX: last_disp
+cur_line:=prev_graf+1;
+ at y
+cur_line:=prev_graf+1; last_disp:=0;
+ at z
+
+ at x [39.879] l.17919 - pTeX: ita_kern
+ if type(q)=kern_node then if subtype(q)<>explicit then goto done1;
+ at y
+ if type(q)=kern_node then
+ if (subtype(q)<>explicit)and(subtype(q)<>ita_kern) then goto done1;
+ at z
+
+ at x [39.881] l.17950 - pTeX: |q| may be a |char_node|
+if q<>null then {|q| cannot be a |char_node|}
+ if type(q)=glue_node then
+ begin delete_glue_ref(glue_ptr(q));
+ glue_ptr(q):=right_skip;
+ subtype(q):=right_skip_code+1; add_glue_ref(right_skip);
+ goto done;
+ end
+ else begin if type(q)=disc_node then
+ @<Change discretionary to compulsory and set
+ |disc_break:=true|@>
+ at y
+if q<>null then {|q| may be a |char_node|}
+ begin if not is_char_node(q) then
+ if type(q)=glue_node then
+ begin delete_glue_ref(glue_ptr(q));
+ glue_ptr(q):=right_skip;
+ subtype(q):=right_skip_code+1; add_glue_ref(right_skip);
+ goto done;
+ end
+ else begin if type(q)=disc_node then
+ @<Change discretionary to compulsory and set
+ |disc_break:=true|@>
+ at z
+ at x [39.881] l.17961 - pTeX: |q| may be a |char_node|
+ end
+ at y
+ end
+ end
+ at z
+
+ at x [39.887] l.18014 - pTeX: disp_node at begin-of-line
+r:=link(q); link(q):=null; q:=link(temp_head); link(temp_head):=r;
+ at y
+r:=link(q); link(q):=null; q:=link(temp_head); link(temp_head):=r;
+if last_disp<>0 then begin
+ r:=get_node(small_node_size);
+ type(r):=disp_node; disp_dimen(r):=last_disp;
+ link(r):=q; q:=r; disp_called:=true;
+ end;
+ at z
+
+ at x [40.896] l.18177 - pTeX: hyphenation
+loop at + begin if is_char_node(s) then
+ begin c:=qo(character(s)); hf:=font(s);
+ end
+ at y
+loop at + begin if is_char_node(s) then
+ begin hf:=font(s);
+ if font_dir[hf]<>dir_default then
+ begin prev_s:=s; s:=link(prev_s); c:=info(s); goto continue;
+ end else c:=qo(character(s));
+ end
+ else if type(s)=disp_node then goto continue
+ else if (type(s)=penalty_node)and(subtype(s)<>normal) then goto continue
+ at z
+
+ at x [40.899] l.18248 - pTeX: disp_node
+ whatsit_node,glue_node,penalty_node,ins_node,adjust_node,mark_node:
+ goto done4;
+ at y
+ disp_node: do_nothing;
+ whatsit_node,glue_node,penalty_node,ins_node,adjust_node,mark_node:
+ goto done4;
+ at z
+
+ at x [44.968] l.19535 - pTeX: dir_node
+ hlist_node,vlist_node,rule_node:@<Insert glue for |split_top_skip|
+ at y
+ dir_node,
+ hlist_node,vlist_node,rule_node:@<Insert glue for |split_top_skip|
+ at z
+
+ at x [44.973] l.19626 - pTeX: dir_node
+hlist_node,vlist_node,rule_node: begin at t@>@;@/
+ at y
+dir_node,
+hlist_node,vlist_node,rule_node: begin at t@>@;@/
+ at z
+
+ at x [44.977] l.19710 - pTeX: free box node
+var v:pointer; {the box to be split}
+ at y
+var v:pointer; {the box to be split}
+w:pointer; {|dir_node|}
+ at z
+
+ at x [44.977] l.19722 - pTeX: free box node
+q:=prune_page_top(q); p:=list_ptr(v); free_node(v,box_node_size);
+if q=null then box(n):=null {the |eq_level| of the box stays the same}
+else box(n):=vpack(q,natural);
+vsplit:=vpackage(p,h,exactly,split_max_depth);
+ at y
+q:=prune_page_top(q); p:=list_ptr(v);
+if q=null then box(n):=null {the |eq_level| of the box stays the same}
+else begin
+ box(n):=vpack(q,natural); set_box_dir(box(n))(box_dir(v));
+ end;
+q:=vpackage(p,h,exactly,split_max_depth);
+set_box_dir(q)(box_dir(v));
+delete_glue_ref(space_ptr(v)); delete_glue_ref(xspace_ptr(v));
+free_node(v,box_node_size);
+vsplit:=q;
+ at z
+
+ at x [44.978] l.19732 - pTeX: bad box for vsplit
+if type(v)<>vlist_node then
+ begin print_err(""); print_esc("vsplit"); print(" needs a ");
+ print_esc("vbox");
+@:vsplit_}{\.{\\vsplit needs a \\vbox}@>
+ help2("The box you are trying to split is an \hbox.")@/
+ ("I can't split such a box, so I'll leave it alone.");
+ error; vsplit:=null; return;
+ end
+ at y
+if type(v)=dir_node then begin
+ w:=v; v:=list_ptr(v);
+ delete_glue_ref(space_ptr(w));
+ delete_glue_ref(xspace_ptr(w));
+ free_node(w,box_node_size);
+end;
+if type(v)<>vlist_node then begin
+ print_err(""); print_esc("vsplit"); print(" needs a ");
+ print_esc("vbox");
+@:vsplit_}{\.{\\vsplit needs a \\vbox}@>
+ help2("The box you are trying to split is an \hbox.")@/
+ ("I can't split such a box, so I'll leave it alone.");
+ error; vsplit:=null; return;
+end;
+flush_node_list(link(v)); link(v):=null
+ at z
+
+ at x [45.993] l.20053 - pTeX: ensure_vbox
+begin p:=box(n);
+if p<>null then if type(p)=hlist_node then
+ begin print_err("Insertions can only be added to a vbox");
+ at y
+begin p:=box(n);
+if p<>null then if type(p)=dir_node then
+ begin p:=list_ptr(p);
+ delete_glue_ref(space_ptr(box(n)));
+ delete_glue_ref(xspace_ptr(box(n)));
+ free_node(box(n),box_node_size);
+ box(n):=p
+end;
+if p<>null then if type(p)<>vlist_node then begin
+ print_err("Insertions can only be added to a vbox");
+ at z
+
+ at x [45.1000] l.20146 - pTeX: dir_node
+hlist_node,vlist_node,rule_node: if page_contents<box_there then
+ @<Initialize the current page, insert the \.{\\topskip} glue
+ ahead of |p|, and |goto continue|@>
+ at y
+hlist_node,vlist_node,dir_node,rule_node: if page_contents<box_there then
+ @<Initialize the current page, insert the \.{\\topskip} glue
+ ahead of |p|, and |goto continue|@>
+ at z
+
+ at x [45.1009] l.20291 - pTeX: ins_dir
+if box(n)=null then height(r):=0
+else height(r):=height(box(n))+depth(box(n));
+ at y
+if box(n)=null then height(r):=0
+else
+ begin if abs(ins_dir(p))<>abs(box_dir(box(n))) then
+ begin print_err("Insertions can only be added to a same direction vbox");
+ at .Insertions can only...@>
+ help3("Tut tut: You're trying to \insert into a")@/
+ ("\box register that now have a different direction.")@/
+ ("Proceed, and I'll discard its present contents.");
+ box_error(n)
+ end
+ else
+ height(r):=height(box(n))+depth(box(n));
+ end;
+ at z
+
+ at x [45.1017] l.20470 - pTeX: page dir
+box(255):=vpackage(link(page_head),best_size,exactly,page_max_depth);
+ at y
+box(255):=vpackage(link(page_head),best_size,exactly,page_max_depth);
+set_box_dir(box(255))(page_dir);
+ at z
+
+ at x [45.1020] l.20513 - pTeX: check ins_dir
+if best_ins_ptr(r)=null then wait:=true
+else begin wait:=false; s:=last_ins_ptr(r); link(s):=ins_ptr(p);
+ at y
+if best_ins_ptr(r)=null then wait:=true
+else begin wait:=false;
+ n:=qo(subtype(p));
+ case abs(box_dir(box(n))) of
+ any_dir:
+ if abs(ins_dir(p))<>abs(box_dir(box(n))) then begin
+ print_err("Insertions can only be added to a same direction vbox");
+ at .Insertions can only...@>
+ help3("Tut tut: You're trying to \insert into a")@/
+ ("\box register that now have a different direction.")@/
+ ("Proceed, and I'll discard its present contents.");
+ box_error(n);
+ box(n):=new_null_box; last_ins_ptr(r):=box(n)+list_offset;
+ end;
+ othercases
+ set_box_dir(box(n))(abs(ins_dir(p)));
+ endcases;
+ s:=last_ins_ptr(r); link(s):=ins_ptr(p);
+ at z
+
+ at x [45.1021] l.20537 - pTeX: free box node, ins_dir
+ free_node(temp_ptr,box_node_size); wait:=true;
+ at y
+ delete_glue_ref(space_ptr(temp_ptr));
+ delete_glue_ref(xspace_ptr(temp_ptr));
+ free_node(temp_ptr,box_node_size); wait:=true;
+ at z
+
+ at x [45.1021] l.20543 - pTeX: free box node, ins_dir
+free_node(box(n),box_node_size);
+box(n):=vpack(temp_ptr,natural);
+ at y
+delete_glue_ref(space_ptr(box(n)));
+delete_glue_ref(xspace_ptr(box(n)));
+flush_node_list(link(box(n)));
+free_node(box(n),box_node_size);
+box(n):=vpack(temp_ptr,natural); set_box_dir(box(n))(abs(ins_dir(p)));
+ at z
+
+ at x [46.1030] l.20687 - pTeX:main_control
+ at d append_normal_space=120 {go here to append a normal space between words}
+ at y
+ at d append_normal_space=120 {go here to append a normal space between words}
+ at d main_loop_j=130 {like |main_loop|, but |cur_chr| holds a KANJI code}
+ at d skip_loop=141
+ at d again_2=150
+ at z
+
+ at x [46.1030] l.20691 - pTeX: main_control
+procedure main_control; {governs \TeX's activities}
+label big_switch,reswitch,main_loop,main_loop_wrapup,
+ at y
+procedure main_control; {governs \TeX's activities}
+label big_switch,reswitch,main_loop,main_loop_wrapup,
+ main_loop_j,main_loop_j+1,main_loop_j+3,skip_loop,again_2,
+ at z
+
+ at x [46.1030] l.20697 - pTeX: main_control
+var@!t:integer; {general-purpose temporary variable}
+ at y
+var@!t:integer; {general-purpose temporary variable}
+@!cx:KANJI_code; {kanji character}
+@!kp:pointer; {kinsoku penalty register}
+@!gp,gq:pointer; {temporary registers for list manipulation}
+@!disp:scaled; {displacement register}
+@!ins_kp:boolean; {whether insert kinsoku penalty}
+ at z
+
+ at x [46.1030] l.20701 - pTeX: main_control
+case abs(mode)+cur_cmd of
+hmode+letter,hmode+other_char,hmode+char_given: goto main_loop;
+hmode+char_num: begin scan_char_num; cur_chr:=cur_val; goto main_loop;@+end;
+hmode+no_boundary: begin get_x_token;
+ if (cur_cmd=letter)or(cur_cmd=other_char)or(cur_cmd=char_given)or
+ (cur_cmd=char_num) then cancel_boundary:=true;
+ goto reswitch;
+ end;
+ at y
+ins_kp:=false;
+case abs(mode)+cur_cmd of
+hmode+letter,hmode+other_char: goto main_loop;
+hmode+kanji,hmode+kana,hmode+other_kchar: goto main_loop_j;
+hmode+char_given:
+ if is_char_ascii(cur_chr) then goto main_loop else goto main_loop_j;
+hmode+char_num: begin scan_char_num; cur_chr:=cur_val;
+ if is_char_ascii(cur_chr) then goto main_loop else goto main_loop_j;
+ end;
+hmode+no_boundary: begin get_x_token;
+ if (cur_cmd=letter)or(cur_cmd=other_char)or
+ (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar)or
+ (cur_cmd=char_given)or(cur_cmd=char_num) then cancel_boundary:=true;
+ goto reswitch;
+ end;
+ at z
+
+ at x [46.1030] l.20715 - pTeX: main_control
+main_loop:@<Append character |cur_chr| and the following characters (if~any)
+ to the current hlist in the current font; |goto reswitch| when
+ a non-character has been fetched@>;
+ at y
+main_loop_j:@<Append KANJI-character |cur_chr|
+ to the current hlist in the current font; |goto reswitch| when
+ a non-character has been fetched@>;
+main_loop: inhibit_glue_flag:=false;
+@<Append character |cur_chr| and the following characters (if~any)
+ to the current hlist in the current font; |goto reswitch| when
+ a non-character has been fetched@>;
+ at z
+
+ at x [46.1034] l.20788 - pTeX: disp_node
+@<Append character |cur_chr|...@>=
+if ((head=tail) and (mode>0)) then begin
+ if (insert_src_special_auto) then append_src_special;
+end;
+adjust_space_factor;@/
+ at y
+@<Append character |cur_chr|...@>=
+if ((head=tail) and (mode>0)) then begin
+ if (insert_src_special_auto) then append_src_special;
+end;
+adjust_space_factor;@/
+if direction=dir_tate then disp:=t_baseline_shift else disp:=y_baseline_shift;
+@<Append |disp_node| at begin of displace area@>;
+ at z
+
+%@x [46.1035] l.20850 - pTeX: kinsoku penalty
+%@<Make a ligature node, if |ligature_present|;...@>=
+%wrapup(rt_hit)
+%@y
+%@<Make a ligature node, if |ligature_present|;...@>=
+%wrapup(rt_hit);
+%if ins_kp=true then
+% begin cx:=KANJI(cur_l); @<Insert kinsoku penalty@>;
+% ins_kp:=false;
+% end
+%@z
+
+ at x [46.1036] l.20854 - pTeX: disp_node
+if lig_stack=null then goto reswitch;
+ at y
+if lig_stack=null then
+ begin @<Append |disp_node| at end of displace area@>;
+ goto reswitch;
+ end;
+ at z
+
+ at x [46.1037] l.20886 - pTeX: Look ahead for another character
+@<Look ahead for another character...@>=
+get_next; {set only |cur_cmd| and |cur_chr|, for speed}
+if cur_cmd=letter then goto main_loop_lookahead+1;
+if cur_cmd=other_char then goto main_loop_lookahead+1;
+if cur_cmd=char_given then goto main_loop_lookahead+1;
+x_token; {now expand and set |cur_cmd|, |cur_chr|, |cur_tok|}
+if cur_cmd=letter then goto main_loop_lookahead+1;
+if cur_cmd=other_char then goto main_loop_lookahead+1;
+if cur_cmd=char_given then goto main_loop_lookahead+1;
+if cur_cmd=char_num then
+ begin scan_char_num; cur_chr:=cur_val; goto main_loop_lookahead+1;
+ end;
+if cur_cmd=no_boundary then bchar:=non_char;
+cur_r:=bchar; lig_stack:=null; goto main_lig_loop;
+main_loop_lookahead+1: adjust_space_factor;
+fast_get_avail(lig_stack); font(lig_stack):=main_f;
+cur_r:=qi(cur_chr); character(lig_stack):=cur_r;
+if cur_r=false_bchar then cur_r:=non_char {this prevents spurious ligatures}
+ at y
+@<Look ahead for another character...@>=
+get_next; {set only |cur_cmd| and |cur_chr|, for speed}
+if cur_cmd=letter then goto main_loop_lookahead+1;
+if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
+ @<goto |main_lig_loop|@>;
+if cur_cmd=other_char then goto main_loop_lookahead+1;
+if cur_cmd=char_given then
+ begin if is_char_ascii(cur_chr) then goto main_loop_lookahead+1
+ else @<goto |main_lig_loop|@>;
+ end;
+x_token; {now expand and set |cur_cmd|, |cur_chr|, |cur_tok|}
+if cur_cmd=letter then goto main_loop_lookahead+1;
+if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
+ @<goto |main_lig_loop|@>;
+if cur_cmd=other_char then goto main_loop_lookahead+1;
+if cur_cmd=char_given then
+ begin if is_char_ascii(cur_chr) then goto main_loop_lookahead+1
+ else @<goto |main_lig_loop|@>;
+ end;
+if cur_cmd=char_num then
+ begin scan_char_num; cur_chr:=cur_val;
+ if is_char_ascii(cur_chr) then goto main_loop_lookahead+1
+ else @<goto |main_lig_loop|@>;
+ end;
+if cur_cmd=inhibit_glue then
+ begin inhibit_glue_flag:=true; goto main_loop_lookahead;
+ end;
+if cur_cmd=no_boundary then bchar:=non_char;
+cur_r:=bchar; lig_stack:=null; goto main_lig_loop;
+main_loop_lookahead+1: adjust_space_factor;
+inhibit_glue_flag:=false;
+fast_get_avail(lig_stack); font(lig_stack):=main_f;
+cur_r:=qi(cur_chr); character(lig_stack):=cur_r;
+if cur_r=false_bchar then cur_r:=non_char {this prevents spurious ligatures}
+
+@ @<goto |main_lig_loop|@>=
+begin bchar:=non_char; cur_r:=bchar; lig_stack:=null;
+if ligature_present then pack_lig(rt_hit);
+if ins_kp=true then
+ begin cx:=cur_l; @<Insert kinsoku penalty@>;
+ end;
+ins_kp:=false;
+goto main_loop_j;
+end
+ at z
+
+ at x [46.1041] l.20999 - pTeX: disp_node
+link(tail):=temp_ptr; tail:=temp_ptr;
+ at y
+if not is_char_node(tail)and(type(tail)=disp_node) then
+ begin link(prev_node):=temp_ptr; link(temp_ptr):=tail; prev_node:=temp_ptr;
+ end
+else begin link(tail):=temp_ptr; tail:=temp_ptr;
+ end;
+ at z
+
+ at x [46.1043] l.21029 - pTeX: disp_node
+link(tail):=q; tail:=q;
+ at y
+if not is_char_node(tail)and(type(tail)=disp_node) then
+ begin link(prev_node):=q; link(q):=tail; prev_node:=q;
+ end
+else begin link(tail):=q; tail:=q;
+ end
+ at z
+
+ at x [47.????] pTeX: reset inhibit_glue_flag at rule_node
+vmode+hrule,hmode+vrule,mmode+vrule: begin tail_append(scan_rule_spec);
+ at y
+vmode+hrule,hmode+vrule,mmode+vrule: begin tail_append(scan_rule_spec);
+ inhibit_glue_flag := false;
+ at z
+
+ at x [47.1060] pTeX: append_glue, inhibit_glue_flag
+end; {now |cur_val| points to the glue specification}
+tail_append(new_glue(cur_val));
+if s>=skip_code then
+ at y
+end; {now |cur_val| points to the glue specification}
+tail_append(new_glue(cur_val));
+inhibit_glue_flag := false;
+if s>=skip_code then
+ at z
+
+ at x [47.1061] l.21277 - pTeX: append kern
+begin s:=cur_chr; scan_dimen(s=mu_glue,false,false);
+tail_append(new_kern(cur_val)); subtype(tail):=s;
+end;
+ at y
+begin s:=cur_chr; scan_dimen(s=mu_glue,false,false);
+inhibit_glue_flag := false;
+if not is_char_node(tail)and(type(tail)=disp_node) then
+ begin prev_append(new_kern(cur_val)); subtype(prev_node):=s;
+ end
+else
+ begin tail_append(new_kern(cur_val)); subtype(tail):=s;
+ end;
+end;
+ at z
+
+ at x [47.1068] l.21377 - pTeX:
+var p,@!q:pointer; {for short-term use}
+ at y
+var p,@!q:pointer; {for short-term use}
+@!r:pointer; {temporary}
+ at z
+
+ at x [47.1071] l.21485 - pTeX: \tate, \yoko, \dtou
+primitive("hbox",make_box,vtop_code+hmode);@/
+@!@:hbox_}{\.{\\hbox} primitive@>
+ at y
+primitive("hbox",make_box,vtop_code+hmode);@/
+@!@:hbox_}{\.{\\hbox} primitive@>
+primitive("tate",chg_dir,dir_tate);@/
+@!@:tate_}{\.{\\tate} primitive@>
+primitive("yoko",chg_dir,dir_yoko);@/
+@!@:yoko_}{\.{\\yoko} primitive@>
+primitive("dtou",chg_dir,dir_dtou);@/
+@!@:dtou_}{\.{\\dtou} primitive@>
+ at z
+
+ at x [47.1072] l.21506 - pTeX: \tate, \yoko, \dtou
+ othercases print_esc("hbox")
+ endcases;
+leader_ship: if chr_code=a_leaders then print_esc("leaders")
+ at y
+ othercases print_esc("hbox")
+ endcases;
+chg_dir:
+ case chr_code of
+ dir_yoko: print_esc("yoko");
+ dir_tate: print_esc("tate");
+ dir_dtou: print_esc("dtou");
+ endcases;
+leader_ship: if chr_code=a_leaders then print_esc("leaders")
+ at z
+
+ at x [47.1073] l.21523 - pTeX: \tate, \yoko
+any_mode(make_box): begin_box(0);
+ at y
+any_mode(make_box): begin_box(0);
+any_mode(chg_dir):
+ begin if cur_group<>align_group then
+ if mode=hmode then
+ begin print_err("Improper `"); print_cmd_chr(cur_cmd,cur_chr);
+ print("'");
+ help2("You cannot change the direction in unrestricted")
+ ("horizontal mode."); error;
+ end
+ else if abs(mode)=mmode then
+ begin print_err("Improper `"); print_cmd_chr(cur_cmd,cur_chr);
+ print("'");
+ help1("You cannot change the direction in math mode."); error;
+ end
+ else if nest_ptr=0 then change_page_direction(cur_chr)
+ else if head=tail then direction:=cur_chr
+ else begin print_err("Use `"); print_cmd_chr(cur_cmd,cur_chr);
+ print("' at top of list");
+ help2("Direction change command is available only while")
+ ("current list is null."); error;
+ end
+ else begin print_err("You can't use `"); print_cmd_chr(cur_cmd,cur_chr);
+ print("' in an align");
+ help2("To change direction in an align,")
+ ("you shold use \hbox or \vbox with \tate or \yoko."); error;
+ end
+ end;
+ at z
+
+ at x [47.1075] l.21538 - pTeX: box_end
+var p:pointer; {|ord_noad| for new box in math mode}
+ at y
+var p:pointer; {|ord_noad| for new box in math mode}
+q:pointer;
+ at z
+
+ at x [47.1076] l.21553 - pTeX: box_dir adjust
+ begin shift_amount(cur_box):=box_context;
+ at y
+ begin p:=link(cur_box); link(cur_box):=null;
+ while p<>null do begin
+ q:=p; p:=link(p);
+ if abs(box_dir(q))=abs(direction) then
+ begin list_ptr(q):=cur_box; cur_box:=q; link(cur_box):=null;
+ end
+ else begin
+ delete_glue_ref(space_ptr(q));
+ delete_glue_ref(xspace_ptr(q));
+ free_node(q,box_node_size);
+ end;
+ end;
+ if abs(box_dir(cur_box))<>abs(direction) then
+ cur_box:=new_dir_node(cur_box,abs(direction));
+ shift_amount(cur_box):=box_context;
+ at z
+
+ at x [47.1076] pTeX: sub_exp_box
+ else begin if abs(mode)=hmode then space_factor:=1000
+ else begin p:=new_noad;
+ math_type(nucleus(p)):=sub_box;
+ at y
+ else begin if abs(mode)=hmode then
+ begin space_factor:=1000; inhibit_glue_flag:=false; end
+ else begin p:=new_noad;
+ math_type(nucleus(p)):=sub_exp_box;
+ at z
+
+ at x [47.1078] l.21585 - pTeX: box_dir adjust
+ begin append_glue; subtype(tail):=box_context-(leader_flag-a_leaders);
+ leader_ptr(tail):=cur_box;
+ end
+ at y
+ begin append_glue; subtype(tail):=box_context-(leader_flag-a_leaders);
+ if type(cur_box)<=dir_node then
+ begin p:=link(cur_box); link(cur_box):=null;
+ while p<>null do
+ begin q:=p; p:=link(p);
+ if abs(box_dir(q))=abs(direction) then
+ begin list_ptr(q):=cur_box; cur_box:=q; link(cur_box):=null;
+ end
+ else begin
+ delete_glue_ref(space_ptr(q));
+ delete_glue_ref(xspace_ptr(q));
+ free_node(q,box_node_size);
+ end;
+ end;
+ if abs(box_dir(cur_box))<>abs(direction) then
+ cur_box:=new_dir_node(cur_box,abs(direction));
+ end;
+ leader_ptr(tail):=cur_box;
+ end
+ at z
+
+ at x [47.1079] l.20920 begin_box - pTeX: disp_node, adjust direction
+@!m:quarterword; {the length of a replacement list}
+ at y
+@!r:pointer; {running behind |p|}
+@!fd:boolean; {a final |disp_node| pair?}
+@!disp,@!pdisp:scaled; {displacement}
+@!a_dir:eight_bits; {adjust direction}
+@!tx:pointer; {effective tail node}
+@!m:quarterword; {the length of a replacement list}
+ at z
+
+ at x [47.1080] l.20937 - pTeX: disp_node, check head=tail
+@ Note that the condition |not is_char_node(tail)| implies that |head<>tail|,
+since |head| is a one-word node.
+ at y
+@ Note that in \TeX\ the condition |not is_char_node(tail)| implies that
+|head<>tail|, since |head| is a one-word node; this is not so for \pTeX.
+ at z
+
+ at x [47.1080] l.20940 - pTeX: disp_node
+@<If the current list ends with a box node, delete it...@>=
+ at y
+ at d check_effective_tail_pTeX(#)==
+tx:=tail;
+if not is_char_node(tx) then
+ if type(tx)=disp_node then
+ begin tx:=prev_node;
+ if not is_char_node(tx) then
+ if type(tx)=disp_node then #; {|disp_node| from a discretionary}
+ end
+@#
+ at d fetch_effective_tail_pTeX(#)== {extract |tx|, merge |disp_node| pair}
+q:=head; p:=null; disp:=0; pdisp:=0;
+repeat r:=p; p:=q; fd:=false;
+if not is_char_node(q) then
+ if type(q)=disc_node then
+ begin for m:=1 to replace_count(q) do p:=link(p);
+ if p=tx then #;
+ end
+ else if type(q)=disp_node then
+ begin pdisp:=disp; disp:=disp_dimen(q); fd:=true;@+end;
+q:=link(p);
+until q=tx; {found |r|$\to$|p|$\to$|q=tx|}
+q:=link(tx); link(p):=q; link(tx):=null;
+if q=null then tail:=p
+else if fd then {|r|$\to$|p=disp_node|$\to$|q=disp_node|}
+ begin prev_node:=r; prev_disp:=pdisp; link(p):=null; tail:=p;
+ disp_dimen(p):=disp_dimen(q); free_node(q,small_node_size);
+ end
+else prev_node:=p
+@#
+ at d check_effective_tail==check_effective_tail_pTeX
+ at d fetch_effective_tail==fetch_effective_tail_pTeX
+
+@<If the current list ends with a box node, delete it...@>=
+ at z
+
+ at x [47.1080] l.20950 - pTeX: disp_node, check head=tail
+else begin if not is_char_node(tail) then
+ if (type(tail)=hlist_node)or(type(tail)=vlist_node) then
+ @<Remove the last box, unless it's part of a discretionary@>;
+ end;
+ at y
+else begin check_effective_tail(goto done);
+ if not is_char_node(tx)and(head<>tx) then
+ if (type(tx)=hlist_node)or(type(tx)=vlist_node)
+ or(type(tx)=dir_node) then
+ @<Remove the last box, unless it's part of a discretionary@>;
+ done:end;
+ at z
+
+ at x [47.1081] l.20957 - pTeX: disp_node
+begin q:=head;
+repeat p:=q;
+if not is_char_node(q) then if type(q)=disc_node then
+ begin for m:=1 to replace_count(q) do p:=link(p);
+ if p=tail then goto done;
+ end;
+q:=link(p);
+until q=tail;
+cur_box:=tail; shift_amount(cur_box):=0;
+tail:=p; link(p):=null;
+done:end
+ at y
+begin fetch_effective_tail(goto done);
+cur_box:=tx; shift_amount(cur_box):=0;
+if type(cur_box)=dir_node then
+ begin link(list_ptr(cur_box)):=cur_box;
+ cur_box:=list_ptr(cur_box);
+ list_ptr(link(cur_box)):=null;
+ end
+else
+ if box_dir(cur_box)=dir_default then set_box_dir(cur_box)(direction);
+end
+ at z
+
+ at x [47.1083] l.20989 - pTeX: adjust_dir
+if k=hmode then
+ if (box_context<box_flag)and(abs(mode)=vmode) then
+ scan_spec(adjusted_hbox_group,true)
+ else scan_spec(hbox_group,true)
+else begin if k=vmode then scan_spec(vbox_group,true)
+ else begin scan_spec(vtop_group,true); k:=vmode;
+ end;
+ normal_paragraph;
+ end;
+push_nest; mode:=-k;
+ at y
+a_dir:=adjust_dir;
+if k=hmode then
+ if (box_context<box_flag)and(abs(mode)=vmode) then
+ begin a_dir:=abs(direction); scan_spec(adjusted_hbox_group,true);
+ end
+ else scan_spec(hbox_group,true)
+else begin if k=vmode then scan_spec(vbox_group,true)
+ else begin scan_spec(vtop_group,true); k:=vmode;
+ end;
+ normal_paragraph;
+ end;
+push_nest; mode:=-k; adjust_dir:=a_dir;
+ at z
+
+ at x [47.1083] reset inhibit_glue_flag
+else begin space_factor:=1000;
+ at y
+else begin space_factor:=1000; inhibit_glue_flag:=false;
+ at z
+
+ at x [47.1085] l.21031 - pTeX: end of box, call adjust_hlist
+hbox_group: package(0);
+adjusted_hbox_group: begin adjust_tail:=adjust_head; package(0);
+ end;
+ at y
+hbox_group: begin adjust_hlist(head,false); package(0);
+ end;
+adjusted_hbox_group: begin adjust_hlist(head,false);
+ adjust_tail:=adjust_head; package(0);
+ end;
+ at z
+
+ at x [47.1086] l.21044 - pTeX: set cur_kanji_skip, cur_xkanji_skip
+begin d:=box_max_depth; unsave; save_ptr:=save_ptr-3;
+if mode=-hmode then cur_box:=hpack(link(head),saved(2),saved(1))
+else begin cur_box:=vpackage(link(head),saved(2),saved(1),d);
+ if c=vtop_code then @<Readjust the height and depth of |cur_box|,
+ for \.{\\vtop}@>;
+ end;
+pop_nest; box_end(saved(0));
+end;
+ at y
+begin d:=box_max_depth;
+ delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
+ if auto_spacing>0 then cur_kanji_skip:=kanji_skip
+ else cur_kanji_skip:=zero_glue;
+ if auto_xspacing>0 then cur_xkanji_skip:=xkanji_skip
+ else cur_xkanji_skip:=zero_glue;
+ add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
+ unsave; save_ptr:=save_ptr-3;
+ if mode=-hmode then begin
+ cur_box:=hpack(link(head),saved(2),saved(1));
+ set_box_dir(cur_box)(direction); pop_nest;
+ end else begin
+ cur_box:=vpackage(link(head),saved(2),saved(1),d);
+ set_box_dir(cur_box)(direction); pop_nest;
+ if c=vtop_code then
+ @<Readjust the height and depth of |cur_box|, for \.{\\vtop}@>;
+ end;
+ box_end(saved(0));
+end;
+ at z
+
+ at x [47.1090] l.21079 - pTeX: apend vmode case
+vmode+letter,vmode+other_char,vmode+char_num,vmode+char_given,
+ vmode+math_shift,vmode+un_hbox,vmode+vrule,
+ vmode+accent,vmode+discretionary,vmode+hskip,vmode+valign,
+ vmode+ex_space,vmode+no_boundary:@t@>@;@/
+ begin back_input; new_graf(true);
+ end;
+ at y
+vmode+letter,vmode+other_char,vmode+char_num,vmode+char_given,
+ vmode+math_shift,vmode+un_hbox,vmode+vrule,
+ vmode+accent,vmode+discretionary,vmode+hskip,vmode+valign,
+ vmode+kanji,vmode+kana,vmode+other_kchar,
+ vmode+ex_space,vmode+no_boundary:@t@>@;@/
+ begin back_input; new_graf(true);
+ end;
+ at z
+
+ at x [47.1091] l.21096 - pTeX: new_graf, adjust direction
+push_nest; mode:=hmode; space_factor:=1000; set_cur_lang; clang:=cur_lang;
+ at y
+inhibit_glue_flag := false;
+push_nest; adjust_dir:=direction;
+mode:=hmode; space_factor:=1000; set_cur_lang; clang:=cur_lang;
+ at z
+
+ at x [47.???] indent_in_hmode: reset inhibit_glue_flag
+ if abs(mode)=hmode then space_factor:=1000
+ at y
+ if abs(mode)=hmode then
+ begin space_factor:=1000; inhibit_glue_flag:=false; end
+ at z
+
+ at x [47.1096] l.21155 - pTeX: end_graf, call adjust_hlist
+ begin if head=tail then pop_nest {null paragraphs are ignored}
+ else line_break(widow_penalty);
+ at y
+ begin if (link(head)=tail)and(not is_char_node(tail)and(type(tail)=disp_node)) then
+ begin free_node(tail,small_node_size); tail:=head; link(head):=null; end;
+ { |disp_node|-only paragraphs are ignored }
+ if head=tail then pop_nest {null paragraphs are ignored}
+ else begin adjust_hlist(head,true); line_break(widow_penalty)
+ end;
+ at z
+
+ at x [47.1099] l.21184 begin_insert_or_adjust - pTeX: insert and adjust
+new_save_level(insert_group); scan_left_brace; normal_paragraph;
+push_nest; mode:=-vmode; prev_depth:=ignore_depth;
+ at y
+inhibit_glue_flag:=false;
+new_save_level(insert_group); scan_left_brace; normal_paragraph;
+push_nest; mode:=-vmode; direction:=adjust_dir; prev_depth:=ignore_depth;
+ at z
+
+ at x [47.1100] l.21189 - pTeX: free box node, ins_dir
+ {now |saved(0)| is the insertion number, or 255 for |vadjust|}
+ p:=vpack(link(head),natural); pop_nest;
+ if saved(0)<255 then
+ begin tail_append(get_node(ins_node_size));
+ type(tail):=ins_node; subtype(tail):=qi(saved(0));
+ height(tail):=height(p)+depth(p); ins_ptr(tail):=list_ptr(p);
+ split_top_ptr(tail):=q; depth(tail):=d; float_cost(tail):=f;
+ end
+ else begin tail_append(get_node(small_node_size));
+ type(tail):=adjust_node;@/
+ subtype(tail):=0; {the |subtype| is not used}
+ adjust_ptr(tail):=list_ptr(p); delete_glue_ref(q);
+ end;
+ free_node(p,box_node_size);
+ if nest_ptr=0 then build_page;
+ end;
+ at y
+ {now |saved(0)| is the insertion number, or 255 for |vadjust|}
+ p:=vpack(link(head),natural); set_box_dir(p)(direction); pop_nest;
+ if saved(0)<255 then
+ begin r:=get_node(ins_node_size);
+ type(r):=ins_node; subtype(r):=qi(saved(0));
+ height(r):=height(p)+depth(p); ins_ptr(r):=list_ptr(p);
+ split_top_ptr(r):=q; depth(r):=d; float_cost(r):=f;
+ set_ins_dir(r)(box_dir(p));
+ if not is_char_node(tail)and(type(tail)=disp_node) then
+ prev_append(r)
+ else tail_append(r);
+ end
+ else begin
+ if abs(box_dir(p))<>abs(adjust_dir) then
+ begin print_err("Direction Incompatible");
+ help1("\vadjust's argument and outer vlist must have same direction.");
+ error; flush_node_list(list_ptr(p));
+ end
+ else begin
+ r:=get_node(small_node_size); type(r):=adjust_node;@/
+ subtype(r):=0; {the |subtype| is not used}
+ adjust_ptr(r):=list_ptr(p); delete_glue_ref(q);
+ if not is_char_node(tail)and(type(tail)=disp_node) then
+ prev_append(r)
+ else tail_append(r);
+ end;
+ end;
+ delete_glue_ref(space_ptr(p));
+ delete_glue_ref(xspace_ptr(p));
+ free_node(p,box_node_size);
+ if nest_ptr=0 then build_page;
+ end;
+ at z
+
+ at x [47.1101] l.21214 make_mark - pTeX: mark_node, prev_append
+mark_ptr(p):=def_ref; link(tail):=p; tail:=p;
+ at y
+inhibit_glue_flag:=false;
+mark_ptr(p):=def_ref;
+if not is_char_node(tail)and(type(tail)=disp_node) then
+ prev_append(p)
+else tail_append(p);
+ at z
+
+ at x [47.1103] l.21224 - pTeX: penalty, prev_append
+procedure append_penalty;
+begin scan_int; tail_append(new_penalty(cur_val));
+if mode=vmode then build_page;
+end;
+ at y
+procedure append_penalty;
+begin scan_int;
+ inhibit_glue_flag:=false;
+ if not is_char_node(tail)and(type(tail)=disp_node) then
+ prev_append(new_penalty(cur_val))
+ else tail_append(new_penalty(cur_val));
+ if mode=vmode then build_page;
+end;
+ at z
+
+ at x [47.1105] l.21246 - pTeX: delete_last: disp_node
+@!m:quarterword; {the length of a replacement list}
+ at y
+@!r:pointer; {running behind |p|}
+@!fd:boolean; {a final |disp_node| pair?}
+@!disp,@!pdisp:scaled; {displacement}
+@!tx:pointer; {effective tail node}
+@!m:quarterword; {the length of a replacement list}
+ at z
+
+ at x [47.1105] l.21250 - pTeX: delete_last: disp_node
+else begin if not is_char_node(tail) then if type(tail)=cur_chr then
+ begin q:=head;
+ repeat p:=q;
+ if not is_char_node(q) then if type(q)=disc_node then
+ begin for m:=1 to replace_count(q) do p:=link(p);
+ if p=tail then return;
+ end;
+ q:=link(p);
+ until q=tail;
+ link(p):=null; flush_node_list(tail); tail:=p;
+ at y
+else begin check_effective_tail(return);
+ if not is_char_node(tx) then if type(tx)=cur_chr then
+ begin fetch_effective_tail(return);
+ flush_node_list(tx);
+ at z
+
+ at x [47.1110] l.21310 -pTeX: free box node, delete kanji_skip
+var p:pointer; {the box}
+@!c:box_code..copy_code; {should we copy?}
+ at y
+var p:pointer; {the box}
+@!c:box_code..copy_code; {should we copy?}
+@!disp:scaled; {displacement}
+ at z
+
+ at x [47.1110] l.21314 unpackage - pTeX: free box node, delete kanji_skip
+if (abs(mode)=mmode)or((abs(mode)=vmode)and(type(p)<>vlist_node))or@|
+ ((abs(mode)=hmode)and(type(p)<>hlist_node)) then
+ begin print_err("Incompatible list can't be unboxed");
+ at .Incompatible list...@>
+ help3("Sorry, Pandora. (You sneaky devil.)")@/
+ ("I refuse to unbox an \hbox in vertical mode or vice versa.")@/
+ ("And I can't open any boxes in math mode.");@/
+ error; return;
+ end;
+if c=copy_code then link(tail):=copy_node_list(list_ptr(p))
+else begin link(tail):=list_ptr(p); box(cur_val):=null;
+ free_node(p,box_node_size);
+ end;
+ at y
+if type(p)=dir_node then p:=list_ptr(p);
+if (abs(mode)=mmode)or((abs(mode)=vmode)and(type(p)<>vlist_node))or@|
+ ((abs(mode)=hmode)and(type(p)<>hlist_node)) then
+ begin print_err("Incompatible list can't be unboxed");
+ at .Incompatible list...@>
+ help3("Sorry, Pandora. (You sneaky devil.)")@/
+ ("I refuse to unbox an \hbox in vertical mode or vice versa.")@/
+ ("And I can't open any boxes in math mode.");@/
+ error; return;
+end;
+case abs(box_dir(p)) of
+ any_dir:
+ if abs(direction)<>abs(box_dir(p)) then begin
+ print_err("Incompatible direction list can't be unboxed");
+ help2("Sorry, Pandora. (You sneaky devil.)")@/
+ ("I refuse to unbox a box in different direction.");@/
+ error; return;
+ end;
+endcases;
+disp:=0;
+if c=copy_code then link(tail):=copy_node_list(list_ptr(p))
+else
+ begin if type(box(cur_val))=dir_node then
+ begin delete_glue_ref(space_ptr(box(cur_val)));
+ delete_glue_ref(xspace_ptr(box(cur_val)));
+ free_node(box(cur_val),box_node_size);
+ end;
+ flush_node_list(link(p));
+ link(tail):=list_ptr(p); box(cur_val):=null;
+ delete_glue_ref(space_ptr(p));
+ delete_glue_ref(xspace_ptr(p));
+ free_node(p,box_node_size);
+ end;
+ at z
+
+ at x [47.1110] l.22014 - pTeX: free box node, delete kanji_skip
+while link(tail)<>null do tail:=link(tail);
+ at y
+while link(tail)<>null do
+ {reset |inhibit_glue_flag| when a node other than |disp_node| is found;
+ |disp_node| is always inserted according to tex-jp-build issue 40}
+ begin p:=tail; tail:=link(tail);
+ if is_char_node(tail) then begin
+ inhibit_glue_flag:=false;
+ if font_dir[font(tail)]<>dir_default then last_jchr:=link(tail);
+ end
+ else
+ case type(tail) of
+ glue_node : begin
+ inhibit_glue_flag:=false;
+ if (subtype(tail)=kanji_skip_code+1)
+ or(subtype(tail)=xkanji_skip_code+1) then
+ begin link(p):=link(tail);
+ delete_glue_ref(glue_ptr(tail));
+ free_node(tail,small_node_size); tail:=p;
+ end;
+ end;
+ penalty_node : begin
+ inhibit_glue_flag:=false;
+ if subtype(tail)=widow_pena then
+ begin link(p):=link(tail); free_node(tail,small_node_size);
+ tail:=p;
+ end;
+ end;
+ disp_node :
+ begin prev_disp:=disp; disp:=disp_dimen(tail); prev_node:=p;
+ end;
+ othercases inhibit_glue_flag:=false;
+ endcases;
+ end;
+ at z
+
+ at x [47.1113] l.22028 - pTeX: italic correction, ita_kern
+procedure append_italic_correction;
+label exit;
+var p:pointer; {|char_node| at the tail of the current list}
+@!f:internal_font_number; {the font in the |char_node|}
+begin if tail<>head then
+ begin if is_char_node(tail) then p:=tail
+ else if type(tail)=ligature_node then p:=lig_char(tail)
+ else return;
+ f:=font(p);
+ tail_append(new_kern(char_italic(f)(char_info(f)(character(p)))));
+ subtype(tail):=explicit;
+ end;
+ at y
+procedure append_italic_correction;
+label exit;
+var p:pointer; {|char_node| at the tail of the current list}
+@!f:internal_font_number; {the font in the |char_node|}
+@!d:pointer; {|disp_node|}
+begin if tail<>head then
+ begin
+ if not is_char_node(tail)and(type(tail)=disp_node) then
+ begin d:=tail; tail:=prev_node;
+ end
+ else d:=null;
+ if (last_jchr<>null)and(link(last_jchr)=tail)and(is_char_node(tail)) then
+ p:=last_jchr
+ else if is_char_node(tail) then p:=tail
+ else if type(tail)=ligature_node then p:=lig_char(tail)
+ else return;
+ f:=font(p);
+ tail_append(new_kern(char_italic(f)(char_info(f)(character(p)))));
+ subtype(tail):=ita_kern;
+ if d<>null then
+ begin prev_node:=tail; tail_append(d);
+ end;
+ end;
+ at z
+
+ at x [47.????] pTeX: reset inhibit_glue_flag at disc_node
+procedure append_discretionary;
+var c:integer; {hyphen character}
+begin tail_append(new_disc);
+ at y
+procedure append_discretionary;
+var c:integer; {hyphen character}
+begin tail_append(new_disc); inhibit_glue_flag:=false;
+ at z
+
+ at x pTeX: direction check in \discretionary
+@!n:integer; {length of discretionary list}
+ at y
+@!n:integer; {length of discretionary list}
+@!d:integer; {direction}
+ at z
+
+ at x pTeX: direction check in \discretionary
+p:=link(head); pop_nest;
+case saved(-1) of
+0:pre_break(tail):=p;
+1:post_break(tail):=p;
+ at y
+p:=link(head); d:=abs(direction); pop_nest;
+case saved(-1) of
+0:if abs(direction)=d then pre_break(tail):=p
+ else begin
+ print_err("Direction Incompatible");
+ help2("\discretionary's argument and outer hlist must have same direction.")@/
+ ("I delete your first part."); error; pre_break(tail):=null; flush_node_list(p);
+ end;
+1:if abs(direction)=d then post_break(tail):=p
+ else begin
+ print_err("Direction Incompatible");
+ help2("\discretionary's argument and outer hlist must have same direction.")@/
+ ("I delete your second part."); error; post_break(tail):=null; flush_node_list(p);
+ end;
+ at z
+
+ at x pTeX: reset inhibit_glue_flag
+push_nest; mode:=-hmode; space_factor:=1000;
+ at y
+push_nest; mode:=-hmode; space_factor:=1000; inhibit_glue_flag:=false;
+ at z
+
+ at x pTeX: direction check in \discretionary
+else link(tail):=p;
+if n<=max_quarterword then replace_count(tail):=n
+ at y
+else if (n>0)and(abs(direction)<>d) then
+ begin print_err("Direction Incompatible");
+ help2("\discretionary's argument and outer hlist must have same direction.")@/
+ ("I delete your third part."); flush_node_list(p); n:=0; error;
+ end
+else link(tail):=p;
+if n<=max_quarterword then replace_count(tail):=n
+ at z
+
+ at x [47.1120] l.22119 - pTeX: discretionary with disp_node
+decr(save_ptr); return;
+ at y
+decr(save_ptr);
+prev_node:=tail; tail_append(get_node(small_node_size));
+type(tail):=disp_node; disp_dimen(tail):=0; prev_disp:=0;
+return;
+ at z
+
+ at x [47.1121] l.22127 - pTeX: discretionary with disp_node
+ begin if not is_char_node(p) then if type(p)>rule_node then
+ if type(p)<>kern_node then if type(p)<>ligature_node then
+ begin print_err("Improper discretionary list");
+ at y
+ begin if not is_char_node(p) then
+ if (type(p)>rule_node)and(type(p)<>kern_node)and
+ (type(p)<>ligature_node)and(type(p)<>disp_node) then
+ if (type(p)=penalty_node)and(subtype(p)<>normal) then
+ begin link(q):=link(p); free_node(p,small_node_size); p:=q;
+ end
+ else
+ begin print_err("Improper discretionary list");
+ at z
+
+ at x [47.1123] l.22160 - pTeX: make_accent, Kanji, insert disp_node
+var s,@!t: real; {amount of slant}
+ at y
+var s,@!t: real; {amount of slant}
+@!disp:scaled; {displacement}
+@!cx:KANJI_code; {temporary register for KANJI}
+ at z
+
+ at x [47.1123] l.22165 - pTeX: make_accent, Kanji, insert disp_node
+begin scan_char_num; f:=cur_font; p:=new_character(f,cur_val);
+ at y
+begin scan_char_num;
+if not is_char_ascii(cur_val) then
+ begin KANJI(cx):=cur_val;
+ if direction=dir_tate then f:=cur_tfont else f:=cur_jfont;
+ p:=new_character(f,get_jfm_pos(KANJI(cx),f));
+ if p<>null then
+ begin
+ link(p):=get_avail; info(link(p)):=KANJI(cx);
+ end;
+ end
+else begin f:=cur_font; p:=new_character(f,cur_val);
+ end;
+ at z
+
+ at x [47.1123] l.22175 - pTeX: make_accent, Kanji, insert disp_node
+ link(tail):=p; tail:=p; space_factor:=1000;
+ at y
+ link(tail):=p;
+ if link(p)<>null then tail:=link(p) else tail:=p;
+ @<Append |disp_node| at end of displace area@>;
+ space_factor:=1000; inhibit_glue_flag:=false;
+ at z
+
+ at x [47.1124] l.22180 - pTeX: make_accent Kanji, insert disp_node
+q:=null; f:=cur_font;
+if (cur_cmd=letter)or(cur_cmd=other_char)or(cur_cmd=char_given) then
+ q:=new_character(f,cur_chr)
+else if cur_cmd=char_num then
+ begin scan_char_num; q:=new_character(f,cur_val);
+ end
+else back_input
+ at y
+q:=null; f:=cur_font; KANJI(cx):=empty;
+if (cur_cmd=letter)or(cur_cmd=other_char) then
+ q:=new_character(f,cur_chr)
+else if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
+ begin if direction=dir_tate then f:=cur_tfont else f:=cur_jfont;
+ cx:=cur_chr;
+ end
+else if cur_cmd=char_given then
+ if is_char_ascii(cur_chr) then q:=new_character(f,cur_chr)
+ else begin
+ if direction=dir_tate then f:=cur_tfont else f:=cur_jfont;
+ KANJI(cx):=cur_chr
+ end
+ else if cur_cmd=char_num then
+ begin scan_char_num;
+ if is_char_ascii(cur_val) then q:=new_character(f,cur_val)
+ else begin
+ if direction=dir_tate then f:=cur_tfont else f:=cur_jfont;
+ KANJI(cx):=cur_val
+ end
+ end
+else back_input;
+if direction=dir_tate then
+ begin if font_dir[f]=dir_tate then disp:=0
+ else if font_dir[f]=dir_yoko then disp:=t_baseline_shift-y_baseline_shift
+ else disp:=t_baseline_shift
+ end
+else begin if font_dir[f]=dir_yoko then disp:=0
+ else if font_dir[f]=dir_tate then disp:=y_baseline_shift-t_baseline_shift
+ else disp:=y_baseline_shift
+ end;
+@<Append |disp_node| at begin of displace area@>;
+if KANJI(cx)<>empty then
+ begin q:=new_character(f,get_jfm_pos(KANJI(cx),f));
+ link(q):=get_avail; info(link(q)):=KANJI(cx); last_jchr:=q;
+ end;
+ at z
+
+ at x [47.1125] l.22200 - pTeX: make_accent Kanji
+if h<>x then {the accent must be shifted up or down}
+ begin p:=hpack(p,natural); shift_amount(p):=x-h;
+ end;
+ at y
+if h<>x then {the accent must be shifted up or down}
+ begin delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
+ cur_kanji_skip:=zero_glue; cur_xkanji_skip:=zero_glue;
+ add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
+ p:=hpack(p,natural); shift_amount(p):=x-h;
+ end;
+ at z
+
+ at x [47.1125] pTeX: make accent Kanji
+tail:=new_kern(-a-delta); subtype(tail):=acc_kern; link(p):=tail; p:=q;
+ at y
+tail:=new_kern(-a-delta); subtype(tail):=acc_kern;
+if h=x then begin
+ if font_dir[font(p)]<>dir_default then link(link(p)):=tail
+ else link(p):=tail; end
+else link(p):=tail;
+{ bugfix: if |p| is KANJI char, |link(p)|:=|tail| collapses |p| and kern after accent. }
+p:=q;
+ at z
+
+ at x [48.1138] l.22385 - pTeX: init math : direction < 0 ... math direction
+if (cur_cmd=math_shift)and(mode>0) then @<Go into display math mode@>
+else begin back_input; @<Go into ordinary math mode@>;
+ end;
+ at y
+if (cur_cmd=math_shift)and(mode>0) then @<Go into display math mode@>
+else begin back_input; @<Go into ordinary math mode@>;
+ end;
+direction:=-abs(direction);
+ at z
+
+ at x [48.1145] l.22435 - pTeX: Call adjust_hlist at begin of display
+else begin line_break(display_widow_penalty);@/
+ at y
+else if (link(head)=tail)and(not is_char_node(tail)and(type(tail)=disp_node)) then
+ begin free_node(tail,small_node_size); tail:=head; link(head):=null;
+ pop_nest; w:=-max_dimen;
+ end
+ { |disp_node|-only paragraphs are ignored }
+else begin adjust_hlist(head,true); line_break(display_widow_penalty);@/
+ at z
+
+ at x [48.1147] l.22471 - pTeX: Skip kanji 2nd node, dir_node
+reswitch: if is_char_node(p) then
+ begin f:=font(p); d:=char_width(f)(char_info(f)(character(p)));
+ goto found;
+ end;
+case type(p) of
+hlist_node,vlist_node,rule_node: begin d:=width(p); goto found;
+ end;
+ at y
+reswitch: if is_char_node(p) then
+ begin f:=font(p); d:=char_width(f)(orig_char_info(f)(character(p)));
+ if font_dir[f]<>dir_default then p:=link(p);
+ goto found;
+ end;
+case type(p) of
+hlist_node,vlist_node,dir_node,rule_node: begin d:=width(p); goto found;
+ end;
+ at z
+
+ at x [48.1150] l.22541 - pTeX: scan_math
+mmode+left_brace: begin tail_append(new_noad);
+ back_input; scan_math(nucleus(tail));
+ end;
+ at y
+mmode+left_brace: begin tail_append(new_noad);
+ back_input; scan_math(nucleus(tail),kcode_noad(tail));
+ end;
+ at z
+
+ at x [48.1151] l.22555 - pTeX: scan_math: use Kanji in math_mode
+procedure scan_math(@!p:pointer);
+label restart,reswitch,exit;
+var c:integer; {math character code}
+begin restart:@<Get the next non-blank non-relax...@>;
+reswitch:case cur_cmd of
+letter,other_char,char_given: begin c:=ho(math_code(cur_chr));
+ if c=@'100000 then
+ begin @<Treat |cur_chr| as an active character@>;
+ goto restart;
+ end;
+ end;
+ at y
+procedure scan_math(@!p,@!q:pointer);
+label restart,reswitch,exit;
+var c:integer; {math character code}
+cx:KANJI_code; {temporary register for KANJI}
+begin KANJI(cx):=0;
+restart: @<Get the next non-blank non-relax...@>;
+reswitch:case cur_cmd of
+letter,other_char,char_given:
+ if is_char_ascii(cur_chr) then begin
+ c:=ho(math_code(cur_chr));
+ if c=@'100000 then
+ begin @<Treat |cur_chr| as an active character@>;
+ goto restart;
+ end;
+ end
+ else
+ KANJI(cx):=cur_chr;
+kanji,kana,other_kchar: cx:=cur_chr;
+ at z
+
+ at x [48.1151] l.22576 - pTeX: scan_math: use Kanji in math_mode
+math_type(p):=math_char; character(p):=qi(c mod 256);
+if (c>=var_code)and fam_in_range then fam(p):=cur_fam
+else fam(p):=(c div 256) mod 16;
+ at y
+if KANJI(cx)=0 then
+ begin math_type(p):=math_char; character(p):=qi(c mod 256);
+ if (c>=var_code)and(fam_in_range) then fam(p):=cur_fam
+ else fam(p):=(c div 256) mod 16;
+ if font_dir[fam_fnt(fam(p)+cur_size)]<>dir_default then
+ begin print_err("Not one-byte family");
+ help1("IGNORE.");@/
+ error;
+ end
+ end
+else begin
+ if q=null then
+ begin math_type(p):=sub_mlist; info(p):=new_noad;
+ p:=nucleus(info(p)); q:=kcode_noad_nucleus(p);
+ end;
+ math_type(p):=math_jchar; fam(p):=cur_jfam; character(p):=qi(0);
+ math_kcode(p-1):=KANJI(cx);
+ if font_dir[fam_fnt(fam(p)+cur_size)]=dir_default then
+ begin print_err("Not two-byte family");
+ help1("IGNORE.");@/
+ error;
+ end
+ end;
+ at z
+
+ at x [48.1154] l.22605 - pTeX: math mode
+mmode+letter,mmode+other_char,mmode+char_given:
+ set_math_char(ho(math_code(cur_chr)));
+mmode+char_num: begin scan_char_num; cur_chr:=cur_val;
+ set_math_char(ho(math_code(cur_chr)));
+ end;
+ at y
+mmode+letter,mmode+other_char,mmode+char_given:
+ if is_char_ascii(cur_chr) then
+ set_math_char(ho(math_code(cur_chr)))
+ else set_math_kchar(cur_chr);
+mmode+kanji,mmode+kana,mmode+other_kchar: begin
+ cx:=cur_chr; set_math_kchar(KANJI(cx));
+ end;
+mmode+char_num: begin scan_char_num; cur_chr:=cur_val;
+ if is_char_ascii(cur_chr) then
+ set_math_char(ho(math_code(cur_chr)))
+ else set_math_kchar(cur_chr);
+ end;
+ at z
+
+ at x [48.1155] l.22635 - pTeX: set_math_char
+ link(tail):=p; tail:=p;
+ at y
+ link(tail):=p; tail:=p;
+ if font_dir[fam_fnt(fam(nucleus(p))+cur_size)]<>dir_default then begin
+ print_err("Not one-byte family");
+ help1("IGNORE.");@/
+ error;
+ end;
+ at z
+
+ at x [48.1158] l.22690 - pTeX: scan_math
+ type(tail):=cur_chr; scan_math(nucleus(tail));
+ at y
+ type(tail):=cur_chr; scan_math(nucleus(tail),kcode_noad(tail));
+ at z
+
+ at x [48.1163] l.22750 - pTeX: scan_math
+scan_delimiter(left_delimiter(tail),true); scan_math(nucleus(tail));
+ at y
+scan_delimiter(left_delimiter(tail),true);
+scan_math(nucleus(tail),kcode_noad(tail));
+ at z
+
+ at x [48.1164] l.22770 - pTeX: scan_math
+scan_math(nucleus(tail));
+ at y
+scan_math(nucleus(tail),kcode_noad(tail));
+ at z
+
+ at x [48.1164] l.22790 - pTeX: vcenter : dir
+ p:=vpack(link(head),saved(1),saved(0)); pop_nest;
+ tail_append(new_noad); type(tail):=vcenter_noad;
+ math_type(nucleus(tail)):=sub_box; info(nucleus(tail)):=p;
+ end;
+ at y
+ p:=vpack(link(head),saved(1),saved(0));
+ set_box_dir(p)(direction); pop_nest;
+ if abs(box_dir(p))<>abs(direction) then p:=new_dir_node(p,abs(direction));
+ tail_append(new_noad); type(tail):=vcenter_noad;
+ math_type(nucleus(tail)):=sub_box; info(nucleus(tail)):=p;
+ end;
+ at z
+
+ at x [48.1176] l.22864 - pTeX: scan_math
+scan_math(p);
+ at y
+scan_math(p,null);
+ at z
+
+ at x [48.1186] l.23006 - pTeX: copy kanji code
+ if math_type(supscr(p))=empty then
+ begin mem[saved(0)].hh:=mem[nucleus(p)].hh;
+ at y
+ if ((math_type(supscr(p))=empty)and(math_kcode(p)=null)) then
+ begin mem[saved(0)].hh:=mem[nucleus(p)].hh;
+ at z
+
+ at x [48.1194] l.23078 - pTeX: set cur_kanji_skip, cur_xkanji_skip
+var l:boolean; {`\.{\\leqno}' instead of `\.{\\eqno}'}
+ at y
+var l:boolean; {`\.{\\leqno}' instead of `\.{\\eqno}'}
+@!disp:scaled; {displacement}
+ at z
+
+ at x [48.1194] l.23087 - pTeX: set cur_kanji_skip, cur_xkanji_skip
+m:=mode; l:=false; p:=fin_mlist(null); {this pops the nest}
+ at y
+delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
+if auto_spacing>0 then cur_kanji_skip:=kanji_skip
+else cur_kanji_skip:=zero_glue;
+if auto_xspacing>0 then cur_xkanji_skip:=xkanji_skip
+else cur_xkanji_skip:=zero_glue;
+add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
+m:=mode; l:=false; p:=fin_mlist(null); {this pops the nest}
+ at z
+
+ at x [48.1196] l.23134 - pTeX: insert disp_node
+begin tail_append(new_math(math_surround,before));
+cur_mlist:=p; cur_style:=text_style; mlist_penalties:=(mode>0); mlist_to_hlist;
+link(tail):=link(temp_head);
+while link(tail)<>null do tail:=link(tail);
+tail_append(new_math(math_surround,after));
+space_factor:=1000; unsave;
+end
+ at y
+begin if direction=dir_tate then disp:=t_baseline_shift
+ else disp:=y_baseline_shift;
+@<Append |disp_node| at begin of displace area@>;
+tail_append(new_math(math_surround,before));
+cur_mlist:=p; cur_style:=text_style; mlist_penalties:=(mode>0); mlist_to_hlist;
+link(tail):=link(temp_head);
+while link(tail)<>null do tail:=link(tail);
+tail_append(new_math(math_surround,after));
+@<Append |disp_node| at end of displace area@>;
+space_factor:=1000; inhibit_glue_flag:=false; unsave;
+end
+ at z
+
+ at x [48.1200] l.23203 - pTeX: adjust direction
+push_nest; mode:=hmode; space_factor:=1000; set_cur_lang; clang:=cur_lang;
+ at y
+push_nest; adjust_dir:=direction; inhibit_glue_flag:=false;
+mode:=hmode; space_factor:=1000; set_cur_lang; clang:=cur_lang;
+ at z
+
+ at x [48.1201] l.23217 - pTeX: free box node
+ begin free_node(b,box_node_size);
+ at y
+ begin delete_glue_ref(space_ptr(b)); delete_glue_ref(xspace_ptr(b));
+ free_node(b,box_node_size);
+ at z
+
+ at x [48.1201] l.23222 - pTeX: free box node
+ begin free_node(b,box_node_size);
+ at y
+ begin delete_glue_ref(space_ptr(b)); delete_glue_ref(xspace_ptr(b));
+ free_node(b,box_node_size);
+ at z
+
+ at x [49.1210] l.23361 - pTeX: set_auto_spacing
+any_mode(toks_register),
+any_mode(assign_toks),
+any_mode(assign_int),
+ at y
+any_mode(assign_kinsoku),
+any_mode(assign_inhibit_xsp_code),
+any_mode(set_auto_spacing),
+any_mode(set_kansuji_char),
+any_mode(toks_register),
+any_mode(assign_toks),
+any_mode(assign_int),
+any_mode(def_jfont),
+any_mode(def_tfont),
+ at z
+
+ at x [49.1211] l.23397 - pTeX: prefixed_command
+ at t\4@>@<Declare subprocedures for |prefixed_command|@>@t@>@;@/
+procedure prefixed_command;
+label done,exit;
+var a:small_number; {accumulated prefix codes so far}
+ at y
+ at t\4@>@<Declare the function called |scan_keyword_noexpand|@>
+@<Declare subprocedures for |prefixed_command|@>@t@>@;@/
+procedure prefixed_command;
+label done,exit;
+var a:small_number; {accumulated prefix codes so far}
+@!m:integer; {ditto}
+ at z
+
+ at x [49.1217] l.23487 - pTeX: select cur font
+set_font: define(cur_font_loc,data,cur_chr);
+ at y
+set_font: begin
+ if font_dir[cur_chr]=dir_yoko then
+ define(cur_jfont_loc,data,cur_chr)
+ else if font_dir[cur_chr]=dir_tate then
+ define(cur_tfont_loc,data,cur_chr)
+ else
+ define(cur_font_loc,data,cur_chr)
+end;
+ at z
+
+ at x l.23504 - pTeX
+primitive("futurelet",let,normal+1);@/
+@!@:future_let_}{\.{\\futurelet} primitive@>
+
+@ @<Cases of |print_cmd_chr|...@>=
+let: if chr_code<>normal then print_esc("futurelet")@+else print_esc("let");
+
+@ @<Assignments@>=
+let: begin n:=cur_chr;
+ at y
+primitive("futurelet",let,normal+1);@/
+@!@:future_let_}{\.{\\futurelet} primitive@>
+
+@ @<Cases of |print_cmd_chr|...@>=
+let: if chr_code<>normal then print_esc("futurelet")@+else print_esc("let");
+
+@ @<Assignments@>=
+let: begin n:=cur_chr;
+ at z
+
+ at x [49.1228] l.23785 - pTeX: assign jfam
+assign_int: begin p:=cur_chr; scan_optional_equals; scan_int;
+ word_define(p,cur_val);
+ end;
+ at y
+assign_int: begin p:=cur_chr; scan_optional_equals; scan_int;
+ if p=int_base+cur_fam_code then
+ begin if font_dir[fam_fnt(cur_val)]<>dir_default then
+ word_define(int_base+cur_jfam_code,cur_val)
+ else word_define(p,cur_val);
+ end
+ else word_define(p,cur_val);
+ end;
+ at z
+
+ at x [49.1230] l.23812 - pTeX: xspcode, kcatcode
+@<Put each...@>=
+primitive("catcode",def_code,cat_code_base);
+@!@:cat_code_}{\.{\\catcode} primitive@>
+ at y
+@<Put each...@>=
+primitive("catcode",def_code,cat_code_base);
+@!@:cat_code_}{\.{\\catcode} primitive@>
+primitive("kcatcode",def_code,kcat_code_base);
+@!@:cat_code_}{\.{\\kcatcode} primitive@>
+primitive("xspcode",def_code,auto_xsp_code_base);
+@!@:auto_xsp_code_}{\.{\\xspcode} primitive@>
+ at z
+
+ at x [49.1231] l.23842 - pTeX: xspcode, kcatcode
+def_code: if chr_code=cat_code_base then print_esc("catcode")
+ else if chr_code=math_code_base then print_esc("mathcode")
+ at y
+def_code: if chr_code=cat_code_base then print_esc("catcode")
+ else if chr_code=kcat_code_base then print_esc("kcatcode")
+ else if chr_code=auto_xsp_code_base then print_esc("xspcode")
+ else if chr_code=math_code_base then print_esc("mathcode")
+ at z
+
+ at x [49.1232] l.23857 - pTeX: kcatcode
+def_code: begin @<Let |n| be the largest legal code value, based on |cur_chr|@>;
+ p:=cur_chr; scan_char_num; p:=p+cur_val; scan_optional_equals;
+ scan_int;
+ if ((cur_val<0)and(p<del_code_base))or(cur_val>n) then
+ begin print_err("Invalid code ("); print_int(cur_val);
+ at .Invalid code@>
+ if p<del_code_base then print("), should be in the range 0..")
+ else print("), should be at most ");
+ print_int(n);
+ help1("I'm going to use 0 instead of that illegal code value.");@/
+ error; cur_val:=0;
+ end;
+ if p<math_code_base then define(p,data,cur_val)
+ else if p<del_code_base then define(p,data,hi(cur_val))
+ else word_define(p,cur_val);
+ end;
+ at y
+def_code: begin
+ @<Let |m| be the minimal legal code value, based on |cur_chr|@>;
+ @<Let |n| be the largest legal code value, based on |cur_chr|@>;
+ p:=cur_chr;
+ if p=kcat_code_base then
+ begin scan_char_num; p:=p+kcatcodekey(cur_val) end
+ else begin scan_ascii_num; p:=p+cur_val; end;
+ scan_optional_equals; scan_int;
+ if ((cur_val<m)and(p<del_code_base))or(cur_val>n) then
+ begin print_err("Invalid code ("); print_int(cur_val);
+ at .Invalid code@>
+ if p<del_code_base then
+ begin print("), should be in the range "); print_int(m); print("..");
+ end
+ else print("), should be at most ");
+ print_int(n);
+ if m=0 then
+ begin help1("I'm going to use 0 instead of that illegal code value.");@/
+ error; cur_val:=0;
+ end
+ else
+ begin help1("I'm going to use 16 instead of that illegal code value.");@/
+ error; cur_val:=16;
+ end;
+ end;
+ if p<math_code_base then define(p,data,cur_val)
+ else if p<del_code_base then define(p,data,hi(cur_val))
+ else word_define(p,cur_val);
+ end;
+ at z
+
+ at x [49.1233] l.23882 - pTeX: kcatcode
+@ @<Let |n| be the largest...@>=
+if cur_chr=cat_code_base then n:=max_char_code
+ at y
+@ @<Let |m| be the minimal...@>=
+if cur_chr=kcat_code_base then m:=kanji else m:=0
+
+@ @<Let |n| be the largest...@>=
+if cur_chr=cat_code_base then n:=invalid_char {1byte |max_char_code|}
+else if cur_chr=kcat_code_base then n:=max_char_code
+ at z
+
+ at x [49.1247] l.24083 - pTeX: alter_box_dimen : box_dir
+procedure alter_box_dimen;
+var c:small_number; {|width_offset| or |height_offset| or |depth_offset|}
+ at y
+procedure alter_box_dimen;
+var c:small_number; {|width_offset| or |height_offset| or |depth_offset|}
+@!p,q:pointer; {temporary registers}
+ at z
+ at x [49.1247] l.24087 - pTeX: alter_box_dimen : box_dir
+scan_normal_dimen;
+if box(b)<>null then mem[box(b)+c].sc:=cur_val;
+end;
+ at y
+scan_normal_dimen;
+if box(b)<>null then
+ begin q:=box(b); p:=link(q);
+ while p<>null do
+ begin if abs(direction)=abs(box_dir(p)) then q:=p;
+ p:=link(p);
+ end;
+ if abs(box_dir(q))<>abs(direction) then
+ begin p:=link(box(b)); link(box(b)):=null;
+ q:=new_dir_node(q,abs(direction)); list_ptr(q):=null;
+ link(q):=p; link(box(b)):=q;
+ end;
+ mem[q+c].sc:=cur_val;
+ end;
+end;
+ at z
+
+ at x [49.1256] l.24163 - pTeX: def_tfont
+def_font: new_font(a);
+ at y
+def_tfont,def_jfont,def_font: new_font(a);
+ at z
+
+ at x [49.????] pTeX: new_font
+get_r_token; u:=cur_cs;
+ at y
+@<Scan the font encoding specification@>;
+get_r_token; u:=cur_cs;
+ at z
+
+ at x [49.1292] l.24451 - pTeX: shift_case
+@<Change the case of the token in |p|, if a change is appropriate@>=
+t:=info(p);
+if t<cs_token_flag+single_base then
+ begin c:=t mod 256;
+ if equiv(b+c)<>0 then info(p):=t-c+equiv(b+c);
+ end
+ at y
+@<Change the case of the token in |p|, if a change is appropriate@>=
+t:=info(p);
+if (t<cs_token_flag+single_base)and(not check_kanji(t)) then
+ begin c:=t mod 256;
+ if equiv(b+c)<>0 then info(p):=t-c+equiv(b+c);
+ end
+ at z
+
+ at x [49.1291] l.24467 - pTeX: show_mode
+ at d show_lists_code=3 { \.{\\showlists} }
+ at y
+ at d show_lists_code=3 { \.{\\showlists} }
+ at d show_mode=4 { \.{\\showmode} }
+ at z
+
+ at x [49.1291] l.24476 - pTeX: show_mode
+primitive("showlists",xray,show_lists_code);
+@!@:show_lists_code_}{\.{\\showlists} primitive@>
+ at y
+primitive("showlists",xray,show_lists_code);
+@!@:show_lists_code_}{\.{\\showlists} primitive@>
+primitive("showmode",xray,show_mode);
+@!@:show_mode_}{\.{\\showmode} primitive@>
+ at z
+
+ at x [49.1292] l.24483 - pTeX: show_mode
+ othercases print_esc("show")
+ at y
+ show_mode:print_esc("showmode");
+ othercases print_esc("show")
+ at z
+
+ at x [49.1293] l.24495 - pTeX: show_mode
+show_code: @<Show the current meaning of a token, then |goto common_ending|@>;
+ at y
+show_code: @<Show the current meaning of a token, then |goto common_ending|@>;
+show_mode: @<Show the current japanese processing mode@>;
+ at z
+
+ at x dump
+@!format_engine: ^text_char;
+ at y
+@!w: four_quarters; {four ASCII codes}
+@!format_engine: ^text_char;
+ at z
+
+ at x undump
+@!format_engine: ^text_char;
+@!dummy_xord: ASCII_code;
+@!dummy_xchr: text_char;
+ at y
+@!w: four_quarters; {four ASCII codes}
+@!format_engine: ^text_char;
+@!dummy_xord: ASCII_code;
+@!dummy_xchr: ext_ASCII_code;
+ at z
+
+ at x
+libc_free(format_engine);@/
+ at y
+libc_free(format_engine);@/
+dump_kanji(fmt_file);
+ at z
+
+ at x
+libc_free(format_engine);
+ at y
+libc_free(format_engine);
+undump_kanji(fmt_file);
+ at z
+
+ at x
+dump_things(str_pool[0], pool_ptr);
+ at y
+for k:=0 to str_ptr do dump_int(str_start[k]);
+k:=0;
+while k+4<pool_ptr do
+ begin dump_four_ASCII; k:=k+4;
+ end;
+k:=pool_ptr-4; dump_four_ASCII;
+ at z
+
+ at x
+undump_things(str_pool[0], pool_ptr);
+ at y
+for k:=0 to str_ptr do undump(0)(pool_ptr)(str_start[k]);
+k:=0;
+while k+4<pool_ptr do
+ begin undump_four_ASCII; k:=k+4;
+ end;
+k:=pool_ptr-4; undump_four_ASCII;
+ at z
+
+ at x l.24982
+font_info:=xmalloc_array(fmemory_word, font_mem_size);
+ at y
+font_info:=xmalloc_array(memory_word, font_mem_size);
+ at z
+
+ at x [50.1320] l.24988 - pTeX:
+@ @<Dump the array info for internal font number |k|@>=
+begin
+dump_things(font_check[null_font], font_ptr+1-null_font);
+ at y
+@ @<Dump the array info for internal font number |k|@>=
+begin
+dump_things(font_dir[null_font], font_ptr+1-null_font);
+dump_things(font_enc[null_font], font_ptr+1-null_font);
+dump_things(font_num_ext[null_font], font_ptr+1-null_font);
+dump_things(font_check[null_font], font_ptr+1-null_font);
+ at z
+
+ at x [50.1321] l.25000 - pTeX:
+dump_things(char_base[null_font], font_ptr+1-null_font);
+ at y
+dump_things(ctype_base[null_font], font_ptr+1-null_font);
+dump_things(char_base[null_font], font_ptr+1-null_font);
+ at z
+
+ at x [50.1322] l.25024 - pTeX:
+@<Undump the array info for internal font number |k|@>=
+begin {Allocate the font arrays}
+ at y
+@<Undump the array info for internal font number |k|@>=
+begin {Allocate the font arrays}
+font_dir:=xmalloc_array(eight_bits, font_max);
+font_enc:=xmalloc_array(eight_bits, font_max);
+font_num_ext:=xmalloc_array(integer, font_max);
+ at z
+
+ at x [50.1322] l.25040 - pTeX:
+char_base:=xmalloc_array(integer, font_max);
+ at y
+ctype_base:=xmalloc_array(integer, font_max);
+char_base:=xmalloc_array(integer, font_max);
+ at z
+
+ at x [50.1322] l.25050 - pTeX:
+undump_things(font_check[null_font], font_ptr+1-null_font);
+ at y
+undump_things(font_dir[null_font], font_ptr+1-null_font);
+undump_things(font_enc[null_font], font_ptr+1-null_font);
+undump_things(font_num_ext[null_font], font_ptr+1-null_font);
+undump_things(font_check[null_font], font_ptr+1-null_font);
+ at z
+
+ at x [50.1322] l.25064 - pTeX:
+undump_things(char_base[null_font], font_ptr+1-null_font);
+ at y
+undump_things(ctype_base[null_font], font_ptr+1-null_font);
+undump_things(char_base[null_font], font_ptr+1-null_font);
+ at z
+
+ at x
+ buffer:=xmalloc_array (ASCII_code, buf_size);
+ at y
+ buffer:=xmalloc_array (ASCII_code, buf_size);
+ buffer2:=xmalloc_array (ASCII_code, buf_size);
+ at z
+
+ at x l.25363 - pTeX
+ font_info:=xmalloc_array (fmemory_word, font_mem_size);
+ at y
+ font_info:=xmalloc_array (memory_word, font_mem_size);
+ at z
+
+ at x
+fix_date_and_time;@/
+ at y
+last:=ptenc_conv_first_line(loc, last, buffer, buf_size); limit:=last;
+fix_date_and_time;@/
+ at z
+
+ at x [51.1337] l.25563 - pTeX:
+ font_check:=xmalloc_array(four_quarters, font_max);
+ at y
+ font_dir:=xmalloc_array(eight_bits, font_max);
+ font_enc:=xmalloc_array(eight_bits, font_max);
+ font_num_ext:=xmalloc_array(integer, font_max);
+ font_check:=xmalloc_array(four_quarters, font_max);
+ at z
+
+ at x [51.1337] l.25577 - pTeX:
+ char_base:=xmalloc_array(integer, font_max);
+ at y
+ ctype_base:=xmalloc_array(integer, font_max);
+ char_base:=xmalloc_array(integer, font_max);
+ at z
+
+ at x [51.1337] l.25587 - pTeX:
+ font_ptr:=null_font; fmem_ptr:=7;
+ at y
+ font_ptr:=null_font; fmem_ptr:=7;
+ font_dir[null_font]:=dir_default;
+ font_enc[null_font]:=0;
+ font_num_ext[null_font]:=0;
+ at z
+
+ at x [51.1337] l.25594 - pTeX:
+ char_base[null_font]:=0; width_base[null_font]:=0;
+ at y
+ ctype_base[null_font]:=0; char_base[null_font]:=0; width_base[null_font]:=0;
+ at z
+
+ at x [53.????] new_write_whatsit, inhibit_glue_flag
+write_stream(tail):=cur_val;
+end;
+ at y
+write_stream(tail):=cur_val;
+inhibit_glue_flag:=false;
+end;
+ at z
+
+ at x [53.????] Implement \special, inhibit_glue_flag
+@<Implement \.{\\special}@>=
+begin new_whatsit(special_node,write_node_size); write_stream(tail):=null;
+p:=scan_toks(false,true); write_tokens(tail):=def_ref;
+end
+ at y
+@<Implement \.{\\special}@>=
+begin new_whatsit(special_node,write_node_size); write_stream(tail):=null;
+p:=scan_toks(false,true); write_tokens(tail):=def_ref;
+inhibit_glue_flag:=false;
+end
+ at z
+
+ at x [53.????] \write18{foo} (write_out in tex.ch)
+@!d:integer; {number of characters in incomplete current string}
+ at y
+@!k:integer; {loop indices}
+@!d:integer; {number of characters in incomplete current string}
+ at z
+
+ at x [53.????] \write18{foo} (write_out in tex.ch)
+ for d:=0 to cur_length-1 do
+ begin {|print| gives up if passed |str_ptr|, so do it by hand.}
+ print(so(str_pool[str_start[str_ptr]+d])); {N.B.: not |print_char|}
+ end;
+ at y
+ for d:=0 to cur_length-1 do
+ begin {|print| gives up if passed |str_ptr|, so do it by hand.}
+ if so(str_pool[str_start[str_ptr]+d])>=@"100 then
+ print_char(so(str_pool[str_start[str_ptr]+d]))
+ else print(so(str_pool[str_start[str_ptr]+d])); {N.B.: not |print_char|}
+ end;
+ at z
+
+ at x [53.????] ignore "flag bit" in str_pool for system(3)
+ runsystem_ret := runsystem(conststringcast(addressof(
+ str_pool[str_start[str_ptr]])));
+ at y
+ if name_of_file then libc_free(name_of_file);
+ name_of_file := xmalloc(cur_length*4+1);
+ k := 0;
+ for d:=0 to cur_length-1 do
+ append_to_name_escape(str_pool[str_start[str_ptr]+d]); {do not remove quote}
+ name_of_file[k+1] := 0;
+ runsystem_ret := runsystem(conststringcast(name_of_file+1));
+ at z
+
+ at x [53.????] Implement \immediate, inhibit_glue_flag
+ begin p:=tail; do_extension; {append a whatsit node}
+ out_what(tail); {do the action immediately}
+ flush_node_list(tail); tail:=p; link(p):=null;
+ end
+ at y
+ begin k:=inhibit_glue_flag;
+ p:=tail; do_extension; {append a whatsit node}
+ out_what(tail); {do the action immediately}
+ flush_node_list(tail); tail:=p; link(p):=null;
+ inhibit_glue_flag:=k;
+ end
+ at z
+
+ at x [53.????] fix_language, inhibit_glue_flag
+if l<>clang then
+ begin new_whatsit(language_node,small_node_size);
+ at y
+if l<>clang then
+ begin inhibit_glue_flag:=false;
+ new_whatsit(language_node,small_node_size);
+ at z
+
+ at x [53.????] set_language, inhibit_glue_flag
+if abs(mode)<>hmode then report_illegal_case
+else begin new_whatsit(language_node,small_node_size);
+ at y
+if abs(mode)<>hmode then report_illegal_case
+else begin inhibit_glue_flag:=false;
+ new_whatsit(language_node,small_node_size);
+ at z
+
+ at x [53.1376] l.26309 - pTeX:
+@<Glob...@> =
+@!debug_format_file: boolean;
+ at y
+@<Glob...@> =
+@!debug_format_file: boolean;
+
+@ @<Set init...@>=
+@!debug debug_format_file:=true; @+gubed;
+ at z
+
+ at x pTeX: xchr
+ if eight_bit_p then
+ for k:=0 to 255 do
+ xprn[k]:=1;
+end;
+ at y
+ if eight_bit_p then
+ for k:=0 to 255 do
+ xprn[k]:=1;
+end;
+for k:=256 to 511 do xchr[k]:=k;
+ at z
+
+ at x [54/web2c.???] scan_file_name_braced
+ for i:=str_start[s] to str_start[s+1]-1 do
+ dummy := more_name(str_pool[i]); {add each read character to the current file name}
+ at y
+ for i:=str_start[s] to str_start[s+1]-1 do
+ if str_pool[i]>=@"100 then
+ begin str_room(1); append_char(str_pool[i]);
+ end
+ else
+ dummy := more_name(str_pool[i]); {add each read character to the current file name}
+ at z
+
+ at x l.26984 - pTeX
+@* \[54] System-dependent changes.
+ at y
+@* \[53b/\pTeX] The extended features for \pTeX.
+This section described extended variables, procesures, functions and so on
+for \pTeX.
+
+@<Declare procedures that scan font-related stuff@>=
+function get_jfm_pos(@!kcode:KANJI_code;@!f:internal_font_number):eight_bits;
+var @!jc:KANJI_code; {temporary register for KANJI}
+@!sp,@!mp,@!ep:pointer;
+begin@/
+if f=null_font then
+ begin get_jfm_pos:=kchar_type(null_font)(0); return;
+ end;
+jc:=toDVI(kcode);
+sp:=1; { start position }
+ep:=font_num_ext[f]-1; { end position }
+if (ep>=1) then { nt is larger than 1; |char_type| is non-empty }
+if font_enc[f]=0 then { |kchar_code| are ordered; faster search }
+begin if (kchar_code(f)(sp)<=jc)and(jc<=kchar_code(f)(ep)) then
+ begin while (sp <= ep) do
+ begin mp:=sp+((ep-sp) div 2);
+ if jc<kchar_code(f)(mp) then ep:=mp-1
+ else if jc>kchar_code(f)(mp) then sp:=mp+1
+ else
+ begin get_jfm_pos:=kchar_type(f)(mp); return;
+ end;
+ end;
+ end;
+end
+else { TFM-DVI encoding conversion; whole search }
+ begin while (sp <= ep) do
+ if jc=kchar_code(f)(sp) then
+ begin get_jfm_pos:=kchar_type(f)(sp); return;
+ end
+ else incr(sp);
+ end;
+get_jfm_pos:=kchar_type(f)(0);
+end;
+
+@ The function |scan_keyword_noexpand| is used to scan a keyword
+preceding possibly undefined control sequence.
+It is used while scanning \.{\\font} with JFM encoding specification.
+
+@<Declare the function called |scan_keyword_noexpand|@>=
+function scan_keyword_noexpand(@!s:str_number):boolean;
+label exit;
+var p:pointer; {tail of the backup list}
+@!q:pointer; {new node being added to the token list via |store_new_token|}
+@!k:pool_pointer; {index into |str_pool|}
+begin p:=backup_head; link(p):=null; k:=str_start[s];
+while k<str_start[s+1] do
+ begin get_token; {no expansion}
+ if (cur_cs=0)and@|
+ ((cur_chr=so(str_pool[k]))or(cur_chr=so(str_pool[k])-"a"+"A")) then
+ begin store_new_token(cur_tok); incr(k);
+ end
+ else if (cur_cmd<>spacer)or(p<>backup_head) then
+ begin back_input;
+ if p<>backup_head then back_list(link(backup_head));
+ scan_keyword_noexpand:=false; return;
+ end;
+ end;
+flush_list(link(backup_head)); scan_keyword_noexpand:=true;
+exit:end;
+
+@ @<Scan the font encoding specification@>=
+begin jfm_enc:=0;
+if scan_keyword_noexpand("in") then
+ if scan_keyword_noexpand("jis") then jfm_enc:=1
+ else if scan_keyword_noexpand("ucs") then jfm_enc:=2
+ else begin
+ print_err("Unknown TFM encoding");
+ at .Unknown TFM encoding@>
+ help1("TFM encoding specification is ignored.");@/
+ error;
+ end;
+end
+
+@ Following codes are used to calculate a KANJI width and height.
+
+@<Local variables for dimension calculations@>=
+@!t: eight_bits;
+
+@ @<The KANJI width for |cur_jfont|@>=
+if direction=dir_tate then
+ v:=char_width(cur_tfont)(orig_char_info(cur_tfont)(qi(0)))
+else
+ v:=char_width(cur_jfont)(orig_char_info(cur_jfont)(qi(0)))
+
+@ @<The KANJI height for |cur_jfont|@>=
+if direction=dir_tate then begin
+ t:=height_depth(orig_char_info(cur_tfont)(qi(0)));
+ v:=char_height(cur_tfont)(t)+char_depth(cur_tfont)(t);
+end else begin
+ t:=height_depth(orig_char_info(cur_jfont)(qi(0)));
+ v:=char_height(cur_jfont)(t)+char_depth(cur_jfont)(t);
+end
+
+@ set a kansuji character.
+
+@ @<Put each...@>=
+primitive("kansujichar",set_kansuji_char,0);
+@!@:kansujichar_}{\.{\\kansujichar} primitive@>
+
+@ @<Cases of |print_cmd_chr|...@>=
+set_kansuji_char: print_esc("kansujichar");
+
+@ @<Assignments@>=
+set_kansuji_char:
+begin p:=cur_chr; scan_int; n:=cur_val; scan_optional_equals; scan_int;
+if not is_char_kanji(cur_val) then
+ begin print_err("Invalid KANSUJI char (");
+ print_hex_safe(cur_val); print_char(")");
+ at .Invalid KANSUJI char@>
+ help1("I'm skipping this control sequences.");@/
+ error; return;
+ end
+else if (n<0)or(n>9) then
+ begin print_err("Invalid KANSUJI number ("); print_int(n); print_char(")");
+ at .Invalid KANSUJI number@>
+ help1("I'm skipping this control sequences.");@/
+ error; return;
+ end
+else
+ define(kansuji_base+n,n,tokanji(toDVI(cur_val)));
+end;
+
+@ @<Fetch kansuji char code from some table@>=
+begin scan_int; cur_val_level:=int_val;
+ if (cur_val<0)or(cur_val>9) then
+ begin print_err("Invalid KANSUJI number ("); print_int(cur_val); print_char(")");
+ help1("I'm skipping this control sequences.");@/
+ error; return;
+ end
+ else
+ cur_val:=fromDVI(kansuji_char(cur_val));
+end
+
+@ |print_kansuji| procedure converts a number to KANJI number.
+
+@ @<Declare procedures needed in |scan_something_internal|@>=
+procedure print_kansuji(@!n:integer);
+var @!k:0..23; {index to current digit; we assume that $|n|<10^{23}$}
+@!cx: KANJI_code; {temporary register for KANJI}
+begin k:=0;
+ if n<0 then return; {nonpositive input produces no output}
+ repeat dig[k]:=n mod 10; n:=n div 10; incr(k);
+ until n=0;
+ begin while k>0 do
+ begin decr(k);
+ cx:=kansuji_char(dig[k]);
+ print_kanji(fromDVI(cx));
+ end;
+ end;
+end;
+
+@ \pTeX\ inserts a glue specified by \.{\\kanjiskip} between 2byte-characters,
+automatically, if \.{\\autospacing}. This glue is suppressed by
+\.{\\noautospacing}.
+\.{\\xkanjiskip}, \.{\\noautoxspacing}, \.{\\autoxspacing}, \.{\\xspcode} is
+used to control between 2byte and 1byte characters.
+
+ at d reset_auto_spacing_code=0
+ at d set_auto_spacing_code=1
+ at d reset_auto_xspacing_code=2
+ at d set_auto_xspacing_code=3
+
+@<Put each...@>=
+primitive("autospacing",set_auto_spacing,set_auto_spacing_code);
+@!@:auto_spacing_}{\.{\\autospacing} primitive@>
+primitive("noautospacing",set_auto_spacing,reset_auto_spacing_code);
+@!@:no_auto_spacing_}{\.{\\noautospacing} primitive@>
+primitive("autoxspacing",set_auto_spacing,set_auto_xspacing_code);
+@!@:auto_xspacing_}{\.{\\autoxspacing} primitive@>
+primitive("noautoxspacing",set_auto_spacing,reset_auto_xspacing_code);
+@!@:no_auto_xspacing_}{\.{\\noautoxspacing} primitive@>
+
+@ @<Cases of |print_cmd_chr|...@>=
+set_auto_spacing:begin
+ if (chr_code mod 2)=0 then print_esc("noauto") else print_esc("auto");
+ if chr_code<2 then print("spacing") else print("xspacing");
+end;
+
+@ @<Assignments@>=
+set_auto_spacing:begin
+ if cur_chr<2 then p:=auto_spacing_code
+ else begin p:=auto_xspacing_code; cur_chr:=(cur_chr mod 2); end;
+ define(p,data,cur_chr);
+end;
+
+@ Following codes are used in section 49.
+
+@<Show the current japanese processing mode@>=
+begin print_nl("> ");
+if auto_spacing>0 then print("auto spacing mode; ")
+ else print("no auto spacing mode; ");
+print_nl("> ");
+if auto_xspacing>0 then print("auto xspacing mode")
+ else print("no auto xspacing mode");
+goto common_ending;
+end
+
+@ The \.{\\inhibitglue} primitive control to insert a glue specified
+JFM (Japanese Font Metic) file. The \.{\\inhibitxspcode} is used to control
+inserting a space between 2byte-char and 1byte-char.
+
+ at d inhibit_both=0 {disable to insert space before 2byte-char and after it}
+ at d inhibit_previous=1 {disable to insert space before 2byte-char}
+ at d inhibit_after=2 {disable to insert space after 2byte-char}
+ at d inhibit_none=3 {enable to insert space before/after 2byte-char}
+ at d inhibit_unused=4 {unused entry}
+ at d no_entry=10000
+ at d new_pos=0
+ at d cur_pos=1
+
+@ @<Cases of |main_control| that don't...@>=
+ any_mode(inhibit_glue): inhibit_glue_flag:=(cur_chr=0);
+
+@ @<Put each...@>=
+primitive("inhibitglue",inhibit_glue,0);
+@!@:inhibit_glue_}{\.{\\inhibitglue} primitive@>
+primitive("disinhibitglue",inhibit_glue,1);
+@!@:dis_inhibit_glue_}{\.{\\disinhibitglue} primitive@>
+primitive("inhibitxspcode",assign_inhibit_xsp_code,inhibit_xsp_code_base);
+@!@:inhibit_xsp_code_}{\.{\\inhibitxspcode} primitive@>
+
+@ @<Cases of |print_cmd_chr|...@>=
+inhibit_glue: if (chr_code>0) then print_esc("disinhibitglue")
+ else print_esc("inhibitglue");
+assign_inhibit_xsp_code: print_esc("inhibitxspcode");
+
+@ @<Declare procedures needed in |scan_something_internal|@>=
+function get_inhibit_pos(c:KANJI_code; n:small_number):pointer;
+label done, done1;
+var p,pp,s:pointer;
+begin s:=calc_pos(c); p:=s; pp:=no_entry;
+if n=new_pos then
+ begin repeat
+ if inhibit_xsp_code(p)=c then goto done; { found, update there }
+ if inhibit_xsp_code(p)=0 then { no further scan needed }
+ begin if pp<>no_entry then p:=pp; goto done; end;
+ if inhibit_xsp_type(p)=inhibit_unused then
+ if pp=no_entry then pp:=p; { save the nearest unused hash }
+ incr(p); if p>1023 then p:=0;
+ until s=p;
+ p:=pp;
+ end
+else
+ begin repeat
+ if inhibit_xsp_code(p)=0 then goto done1;
+ if inhibit_xsp_code(p)=c then goto done;
+ incr(p); if p>1023 then p:=0;
+ until s=p;
+done1: p:=no_entry;
+ end;
+done: get_inhibit_pos:=p;
+end;
+
+@ @<Assignments@>=
+assign_inhibit_xsp_code:
+begin p:=cur_chr; scan_int; n:=cur_val; scan_optional_equals; scan_int;
+if is_char_kanji(n) then
+ begin j:=get_inhibit_pos(tokanji(n),new_pos);
+ if (j<>no_entry)and(cur_val>inhibit_after) then
+ begin if global or(cur_level=level_one) then cur_val:=inhibit_unused
+ { remove the entry from inhibit table }
+ else cur_val:=inhibit_none; end
+ else if j=no_entry then
+ begin print_err("Inhibit table is full!!");
+ help1("I'm skipping this control sequences.");@/
+ error; return; end;
+ define(inhibit_xsp_code_base+j,cur_val,n);
+ end
+else
+ begin print_err("Invalid KANJI code ("); print_hex_safe(n); print_char(")");
+ at .Invalid KANJI code@>
+ help1("I'm skipping this control sequences.");@/
+ error; return;
+ end;
+end;
+
+@ @<Fetch inhibit type from some table@>=
+begin scan_int; q:=get_inhibit_pos(tokanji(cur_val),cur_pos);
+cur_val_level:=int_val; cur_val:=inhibit_none;
+if q<>no_entry then cur_val:=inhibit_xsp_type(q);
+if cur_val>inhibit_none then cur_val:=inhibit_none;
+end
+
+@ The \.{\\prebreakpenalty} is used to specified amount of penalties inserted
+before the 2byte-char which is first argument of this primitive.
+The \.{\\postbreakpenalty} is inserted after the 2byte-char.
+
+ at d pre_break_penalty_code=1
+ at d post_break_penalty_code=2
+ at d kinsoku_unused_code=3
+
+@<Put each...@>=
+primitive("prebreakpenalty",assign_kinsoku,pre_break_penalty_code);
+@!@:pre_break_penalty_}{\.{\\prebreakpenalty} primitive@>
+primitive("postbreakpenalty",assign_kinsoku,post_break_penalty_code);
+@!@:post_break_penalty_}{\.{\\postbreakpenalty} primitive@>
+
+@ @<Cases of |print_cmd_chr|...@>=
+assign_kinsoku: case chr_code of
+ pre_break_penalty_code: print_esc("prebreakpenalty");
+ post_break_penalty_code: print_esc("postbreakpenalty");
+ endcases;
+
+@ @<Declare procedures needed in |scan_something_internal|@>=
+function get_kinsoku_pos(c:KANJI_code; n:small_number):pointer;
+label done, done1;
+var p,pp,s:pointer;
+begin s:=calc_pos(c); p:=s; pp:=no_entry;
+@!debug
+print_ln; print("c:="); print_int(c); print(", p:="); print_int(s);
+if p+kinsoku_base<0 then
+ begin print("p is negative value"); print_ln;
+ end;
+gubed
+if n=new_pos then
+ begin repeat
+ if kinsoku_code(p)=c then goto done; { found, update there }
+ if kinsoku_type(p)=0 then { no further scan needed }
+ begin if pp<>no_entry then p:=pp; goto done; end;
+ if kinsoku_type(p)=kinsoku_unused_code then
+ if pp=no_entry then pp:=p; { save the nearest unused hash }
+ incr(p); if p>1023 then p:=0;
+ until s=p;
+ p:=pp;
+ end
+else
+ begin repeat
+ if kinsoku_type(p)=0 then goto done1;
+ if kinsoku_code(p)=c then goto done;
+ incr(p); if p>1023 then p:=0;
+ until s=p;
+done1: p:=no_entry;
+ end;
+done: get_kinsoku_pos:=p;
+end;
+
+@ @<Assignments@>=
+assign_kinsoku:
+begin p:=cur_chr; scan_int; n:=cur_val; scan_optional_equals; scan_int;
+if is_char_ascii(n) or is_char_kanji(n) then
+ begin j:=get_kinsoku_pos(tokanji(n),new_pos);
+ if (j<>no_entry)and(cur_val=0)and(global or(cur_level=level_one)) then
+ define(kinsoku_base+j,kinsoku_unused_code,0) { remove the entry from KINSOKU table }
+ else begin
+ if j=no_entry then begin
+ print_err("KINSOKU table is full!!");
+ help1("I'm skipping this control sequences.");@/
+ error; return; end;
+ if (p=pre_break_penalty_code)or(p=post_break_penalty_code) then
+ begin define(kinsoku_base+j,p,tokanji(n));
+ word_define(kinsoku_penalty_base+j,cur_val);
+ end
+ else confusion("kinsoku");
+@:this can't happen kinsoku}{\quad kinsoku@>
+ end
+ end
+else
+ begin print_err("Invalid KANJI code for ");
+ if p=pre_break_penalty_code then print("pre")
+ else if p=post_break_penalty_code then print("post")
+ else print_char("?");
+ print("breakpenalty ("); print_hex_safe(n); print_char(")");
+ at .Invalid KANJI code@>
+ help1("I'm skipping this control sequences.");@/
+ error; return;
+ end;
+end;
+
+@ @<Fetch breaking penalty from some table@>=
+begin scan_int; q:=get_kinsoku_pos(tokanji(cur_val),cur_pos);
+cur_val_level:=int_val; cur_val:=0;
+if (q<>no_entry)and(m=kinsoku_type(q)) then
+ scanned_result(kinsoku_penalty(q))(int_val);
+end
+
+@ Following codes are used in |main_control|.
+
+@<Insert kinsoku penalty@>=
+begin kp:=get_kinsoku_pos(cx,cur_pos);
+if kp<>no_entry then if kinsoku_penalty(kp)<>0 then
+ begin if kinsoku_type(kp)=pre_break_penalty_code then
+ begin if not is_char_node(cur_q)and(type(cur_q)=penalty_node) then
+ penalty(cur_q):=penalty(cur_q)+kinsoku_penalty(kp)
+ else
+ begin main_p:=link(cur_q); link(cur_q):=new_penalty(kinsoku_penalty(kp));
+ subtype(link(cur_q)):=kinsoku_pena; link(link(cur_q)):=main_p;
+ end;
+ end
+ else if kinsoku_type(kp)=post_break_penalty_code then
+ begin tail_append(new_penalty(kinsoku_penalty(kp)));
+ subtype(tail):=kinsoku_pena;
+ end;
+ end;
+end;
+
+@ @<Insert |pre_break_penalty| of |cur_chr|@>=
+begin kp:=get_kinsoku_pos(cur_chr,cur_pos);
+if kp<>no_entry then if kinsoku_penalty(kp)<>0 then
+ begin if kinsoku_type(kp)=pre_break_penalty_code then
+ if not is_char_node(tail)and(type(tail)=penalty_node) then
+ penalty(tail):=penalty(tail)+kinsoku_penalty(kp)
+ else
+ begin tail_append(new_penalty(kinsoku_penalty(kp)));
+ subtype(tail):=kinsoku_pena;
+ end;
+ end;
+end;
+
+@ @<Insert |post_break_penalty|@>=
+begin kp:=get_kinsoku_pos(cx,cur_pos);
+if kp<>no_entry then if kinsoku_penalty(kp)<>0 then
+ begin if kinsoku_type(kp)=post_break_penalty_code then
+ begin tail_append(new_penalty(kinsoku_penalty(kp)));
+ subtype(tail):=kinsoku_pena;
+ end;
+ end;
+end;
+
+@ This is a part of section 32.
+
+The procedure |synch_dir| is used in |hlist_out| and |vlist_out|.
+
+ at d dvi_yoko=0
+ at d dvi_tate=1
+ at d dvi_dtou=3
+
+@<Glob...@>=
+@!dvi_dir:integer; {a \.{DVI} reader program thinks we direct to}
+@!cur_dir_hv:integer; {\TeX\ thinks we direct to}
+@!page_dir:eight_bits;
+
+@ @<Set init...@>=
+page_dir:=dir_yoko;
+
+@ @<Declare procedures needed in |hlist_out|, |vlist_out|@>=
+procedure synch_dir;
+var tmp:scaled; {temporary resister}
+begin
+ case cur_dir_hv of
+ dir_yoko:
+ if dvi_dir<>cur_dir_hv then begin
+ synch_h; synch_v; dvi_out(dirchg); dvi_out(dvi_yoko);
+ dir_used:=true;
+ case dvi_dir of
+ dir_tate: begin tmp:=cur_h; cur_h:=-cur_v; cur_v:=tmp end;
+ dir_dtou: begin tmp:=cur_h; cur_h:=cur_v; cur_v:=-tmp end;
+ endcases;
+ dvi_h:=cur_h; dvi_v:=cur_v; dvi_dir:=cur_dir_hv;
+ end;
+ dir_tate:
+ if dvi_dir<>cur_dir_hv then begin
+ synch_h; synch_v; dvi_out(dirchg); dvi_out(dvi_tate);
+ dir_used:=true;
+ case dvi_dir of
+ dir_yoko: begin tmp:=cur_h; cur_h:=cur_v; cur_v:=-tmp end;
+ dir_dtou: begin cur_v:=-cur_v; cur_h:=-cur_h; end;
+ endcases;
+ dvi_h:=cur_h; dvi_v:=cur_v; dvi_dir:=cur_dir_hv;
+ end;
+ dir_dtou:
+ if dvi_dir<>cur_dir_hv then begin
+ synch_h; synch_v; dvi_out(dirchg); dvi_out(dvi_dtou);
+ dir_used:=true;
+ case dvi_dir of
+ dir_yoko: begin tmp:=cur_h; cur_h:=-cur_v; cur_v:=tmp end;
+ dir_tate: begin cur_v:=-cur_v; cur_h:=-cur_h; end;
+ endcases;
+ dvi_h:=cur_h; dvi_v:=cur_v; dvi_dir:=cur_dir_hv;
+ end;
+ othercases
+ confusion("synch_dir");
+ endcases
+end;
+
+@ This function is called from |adjust_hlist| to check, whether
+a list which pointed |box_p| contains a printing character.
+If the list contains such a character, then return `true', otherwise `false'.
+If the first matter is a character, |first_char| is stored it.
+|last_char| is stored a last character. If no printing characters exist
+in the list, |first_char| and |last_char| is null.
+@^recursion@>
+
+Note that |first_char| and |last_char| may be |math_node|.
+
+@<Glob...@>=
+@!first_char:pointer; {first printable character}
+@!last_char:pointer; {last printable character}
+@!find_first_char:boolean; {find for a first printable character?}
+
+@ @<Declare procedures needed in |hlist_out|, |vlist_out|@>=
+function check_box(box_p:pointer):boolean;
+label done;
+var @!p:pointer; {run through the current box}
+@!flag:boolean; {found any printable character?}
+begin flag:=false; p:=box_p;
+while p<>null do
+ begin if is_char_node(p) then
+ repeat
+ if find_first_char then
+ begin first_char:=p; find_first_char:=false
+ end;
+ last_char:=p; flag:=true;
+ if font_dir[font(p)]<>dir_default then p:=link(p);
+ p:=link(p);
+ if p=null then goto done;
+ until not is_char_node(p);
+ case type(p) of
+ hlist_node:
+ begin flag:=true;
+ if shift_amount(p)=0 then
+ begin if check_box(list_ptr(p)) then flag:=true;
+ end
+ else if find_first_char then find_first_char:=false
+ else last_char:=null;
+ end;
+ ligature_node: if check_box(lig_ptr(p)) then flag:=true;
+ ins_node,disp_node,mark_node,adjust_node,whatsit_node,penalty_node:
+ do_nothing;
+ math_node:
+ if (subtype(p)=before)or(subtype(p)=after) then
+ begin if find_first_char then
+ begin find_first_char:=false; first_char:=p;
+ end;
+ last_char:=p; flag:=true;
+ end
+ else do_nothing; {\.{\\beginR} etc.}
+ kern_node:
+ if subtype(p)=acc_kern then
+ begin p:=link(p);
+ if is_char_node(p) then
+ if font_dir[font(p)]<>dir_default then p:=link(p);
+ p:=link(link(p));
+ if find_first_char then
+ begin find_first_char:=false; first_char:=p;
+ end;
+ last_char:=p; flag:=true;
+ if font_dir[font(p)]<>dir_default then p:=link(p);
+ end
+ else
+ begin flag:=true;
+ if find_first_char then find_first_char:=false
+ else last_char:=null;
+ end;
+ othercases begin flag:=true;
+ if find_first_char then find_first_char:=false
+ else last_char:=null;
+ end;
+ endcases;
+ p:=link(p);
+ end;
+done: check_box:=flag;
+end;
+
+@ Following procedure |adjust_hlist| inserts \.{\\xkanjiskip} between
+2byte-char and 1byte-char in hlist which pointed |p|.
+Note that the skip is inserted into a place where too difficult to decide
+whether inserting or not (i.e, before penalty, after penalty).
+
+If |pf| is true then insert |jchr_widow_penalty| that is penalty for
+creating a widow KANJI character line.
+
+ at d no_skip=0
+ at d after_schar=1 {denote after single byte character}
+ at d after_wchar=2 {denote after double bytes character}
+
+@<Declare procedures needed in |hlist_out|, |vlist_out|@>=
+procedure adjust_hlist(p:pointer;pf:boolean);
+label exit;
+var q,s,t,u,v,x,z:pointer;
+ i,k:halfword;
+ a: pointer; { temporary pointer for accent }
+ insert_skip:no_skip..after_wchar;
+ cx:KANJI_code; {temporary register for KANJI character}
+ ax:ASCII_code; {temporary register for ASCII character}
+ do_ins:boolean; {for inserting |xkanji_skip| into previous (or after) KANJI}
+begin if link(p)=null then goto exit;
+if auto_spacing>0 then
+ begin delete_glue_ref(space_ptr(p)); space_ptr(p):=kanji_skip;
+ add_glue_ref(kanji_skip);
+ end;
+if auto_xspacing>0 then
+ begin delete_glue_ref(xspace_ptr(p)); xspace_ptr(p):=xkanji_skip;
+ add_glue_ref(xkanji_skip);
+ end;
+u:=space_ptr(p); add_glue_ref(u);
+s:=xspace_ptr(p); add_glue_ref(s);
+if not is_char_node(link(p)) then
+ if (type(link(p))=glue_node)and(subtype(link(p))=jfm_skip+1) then
+ begin v:=link(p); link(p):=link(v);
+ fast_delete_glue_ref(glue_ptr(v)); free_node(v,small_node_size);
+ end
+ else if (type(link(p))=penalty_node)and(subtype(link(p))=kinsoku_pena) then
+ begin v:=link(link(p));
+ if (not is_char_node(v)) and (type(v)=glue_node)and(subtype(v)=jfm_skip+1) then
+ begin link(link(p)):=link(v);
+ fast_delete_glue_ref(glue_ptr(v)); free_node(v,small_node_size);
+ end
+ end;
+
+i:=0; insert_skip:=no_skip; p:=link(p); v:=p; q:=p;
+while p<>null do
+ begin if is_char_node(p) then
+ begin repeat @<Insert a space around the character |p|@>;
+ q:=p; p:=link(p); incr(i);
+ if (i>5)and pf then
+ begin if is_char_node(v) then
+ if font_dir[font(v)]<>dir_default then v:=link(v);
+ v:=link(v);
+ end;
+ until not is_char_node(p);
+ end
+ else
+ begin case type(p) of
+ hlist_node: @<Insert hbox surround spacing@>;
+ ligature_node: @<Insert ligature surround spacing@>;
+ penalty_node,disp_node: @<Insert penalty or displace surround spacing@>;
+ kern_node: if subtype(p)=explicit then insert_skip:=no_skip
+ else if subtype(p)=acc_kern then begin
+ { When we insert \.{\\xkanjiskip}, we first ignore accent (and kerns) and
+ insert \.{\\xkanjiskip}, then we recover the accent. }
+ if q=p then begin t:=link(p);
+ { if p is beginning on the list, we have only to ignore nodes. }
+ if is_char_node(t) then
+ if font_dir[font(t)]<>dir_default then t:=link(t);
+ p:=link(link(t));
+ if font_dir[font(p)]<>dir_default then
+ begin p:=link(p); insert_skip:=after_wchar; end
+ else insert_skip:=after_schar;
+ end
+ else begin
+ a:=p; t:=link(p);
+ if is_char_node(t) then
+ if font_dir[font(t)]<>dir_default then t:=link(t);
+ t:=link(link(t)); link(q):=t; p:=t;
+ @<Insert a space around the character |p|@>; incr(i);
+ if (i>5)and pf then
+ begin if is_char_node(v) then
+ if font_dir[font(v)]<>dir_default then v:=link(v);
+ v:=link(v);
+ end;
+ if link(q)<>t then link(link(q)):=a else link(q):=a;
+ end;
+ end;
+ math_node: @<Insert math surround spacing@>;
+ mark_node,adjust_node,ins_node,whatsit_node:
+ {These nodes are vanished when typeset is done}
+ do_nothing;
+ othercases insert_skip:=no_skip;
+ endcases;
+ q:=p; p:=link(p);
+ end;
+ end;
+if not is_char_node(q)and(type(q)=glue_node)and(subtype(q)=jfm_skip+1) then
+ begin fast_delete_glue_ref(glue_ptr(q));
+ glue_ptr(q):=zero_glue; add_glue_ref(zero_glue);
+ end;
+delete_glue_ref(u); delete_glue_ref(s);
+if (v<>null)and pf and(i>5) then @<Make |jchr_widow_penalty| node@>;
+exit:
+end;
+
+@ @<Insert a space around the character |p|@>=
+if font_dir[font(p)]<>dir_default then
+ begin KANJI(cx):=info(link(p));
+ if insert_skip=after_schar then @<Insert ASCII-KANJI spacing@>;
+ p:=link(p); insert_skip:=after_wchar;
+ end
+else
+ begin ax:=qo(character(p));
+ if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
+ if auto_xsp_code(ax)>=2 then
+ insert_skip:=after_schar else insert_skip:=no_skip;
+ end
+
+@ @<Insert hbox surround spacing@>=
+begin find_first_char:=true; first_char:=null; last_char:=null;
+if shift_amount(p)=0 then
+ begin if check_box(list_ptr(p)) then
+ begin if first_char<>null then @<Insert a space before the |first_char|@>;
+ if last_char<>null then
+ begin @<Insert a space after the |last_char|@>;
+ end else insert_skip:=no_skip;
+ end else insert_skip:=no_skip;
+ end else insert_skip:=no_skip;
+end
+
+@ @<Insert a space before the |first_char|@>=
+if type(first_char)=math_node then
+ begin ax:=qo("0");
+ if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
+ end
+else if font_dir[font(first_char)]<>dir_default then
+ begin KANJI(cx):=info(link(first_char));
+ if insert_skip=after_schar then @<Insert ASCII-KANJI spacing@>
+ else if insert_skip=after_wchar then @<Insert KANJI-KANJI spacing@>;
+ end
+else
+ begin ax:=qo(character(first_char));
+ if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
+ end;
+
+@ @<Insert a space after the |last_char|@>=
+if type(last_char)=math_node then
+ begin ax:=qo("0");
+ if auto_xsp_code(ax)>=2 then
+ insert_skip:=after_schar else insert_skip:=no_skip;
+ end
+else if font_dir[font(last_char)]<>dir_default then
+ begin insert_skip:=after_wchar; KANJI(cx):=info(link(last_char));
+ if is_char_node(link(p))and(font_dir[font(link(p))]<>dir_default) then
+ begin @<Append KANJI-KANJI spacing@>; p:=link(p);
+ end;
+ end
+else
+ begin ax:=qo(character(last_char));
+ if auto_xsp_code(ax)>=2 then
+ insert_skip:=after_schar else insert_skip:=no_skip;
+ end;
+
+@ @<Insert math surround spacing@>=
+begin if (subtype(p)=before)and(insert_skip=after_wchar) then
+ begin ax:=qo("0"); @<Insert KANJI-ASCII spacing@>;
+ insert_skip:=no_skip;
+ end
+else if subtype(p)=after then
+ begin ax:=qo("0");
+ if auto_xsp_code(ax)>=2 then
+ insert_skip:=after_schar else insert_skip:=no_skip;
+ end
+else insert_skip:=no_skip;
+end
+
+@ @<Insert ligature surround spacing@>=
+begin t:=lig_ptr(p);
+if is_char_node(t) then
+ begin ax:=qo(character(t));
+ if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
+ while link(t)<>null do t:=link(t);
+ if is_char_node(t) then
+ begin ax:=qo(character(t));
+ if auto_xsp_code(ax)>=2 then
+ insert_skip:=after_schar else insert_skip:=no_skip;
+ end;
+ end;
+end
+
+@ @<Insert penalty or displace surround spacing@>=
+begin if is_char_node(link(p)) then
+ begin q:=p; p:=link(p);
+ if font_dir[font(p)]<>dir_default then
+ begin KANJI(cx):=info(link(p));
+ if insert_skip=after_schar then @<Insert ASCII-KANJI spacing@>
+ else if insert_skip=after_wchar then @<Insert KANJI-KANJI spacing@>;
+ p:=link(p); insert_skip:=after_wchar;
+ end
+ else
+ begin ax:=qo(character(p));
+ if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
+ if auto_xsp_code(ax)>=2 then
+ insert_skip:=after_schar else insert_skip:=no_skip;
+ end;
+ end
+end
+
+@ @<Insert ASCII-KANJI spacing@>=
+begin
+ begin x:=get_inhibit_pos(cx,cur_pos);
+ if x<>no_entry then
+ if (inhibit_xsp_type(x)=inhibit_both)or
+ (inhibit_xsp_type(x)=inhibit_previous) then
+ do_ins:=false else do_ins:=true
+ else do_ins:=true;
+ end;
+if do_ins then
+ begin z:=new_glue(s); subtype(z):=xkanji_skip_code+1;
+ link(z):=link(q); link(q):=z; q:=z;
+ end;
+end
+
+@ @<Insert KANJI-ASCII spacing@>=
+begin if (auto_xsp_code(ax) mod 2)=1 then
+ begin x:=get_inhibit_pos(cx,cur_pos);
+ if x<>no_entry then
+ if (inhibit_xsp_type(x)=inhibit_both)or
+ (inhibit_xsp_type(x)=inhibit_after) then
+ do_ins:=false else do_ins:=true
+ else do_ins:=true;
+ end
+else do_ins:=false;
+if do_ins then
+ begin z:=new_glue(s); subtype(z):=xkanji_skip_code+1;
+ link(z):=link(q); link(q):=z; q:=z;
+ end;
+end
+
+@ @<Insert KANJI-KANJI spacing@>=
+begin z:=new_glue(u); subtype(z):=kanji_skip_code+1;
+link(z):=link(q); link(q):=z; q:=z;
+end
+
+@ @<Append KANJI-KANJI spacing@>=
+begin z:=new_glue(u); subtype(z):=kanji_skip_code+1;
+link(z):=link(p); link(p):=z; p:=link(z); q:=z;
+end
+
+@ @<Make |jchr_widow_penalty| node@>=
+begin q:=v; p:=link(v);
+if is_char_node(v)and(font_dir[font(v)]<>dir_default) then
+ begin q:=p; p:=link(p);
+ end;
+t:=q; s:=null;
+@<Seek list and make |t| pointing widow penalty position@>;
+if s<>null then
+ begin s:=link(t);
+ if not is_char_node(s)and(type(s)=penalty_node) then
+ penalty(s):=penalty(s)+jchr_widow_penalty
+ else if jchr_widow_penalty<>0 then
+ begin s:=new_penalty(jchr_widow_penalty); subtype(s):=widow_pena;
+ link(s):=link(t); link(t):=s; t:=link(s);
+ while(not is_char_node(t)) do
+ begin if (type(t)=glue_node)or(type(t)=kern_node) then goto exit;
+ t:=link(t);
+ end;
+ z:=new_glue(u); subtype(z):=kanji_skip_code+1;
+ link(z):=link(s); link(s):=z;
+ end;
+ end;
+end;
+
+@ @<Seek list and make |t| pointing widow penalty position@>=
+k:=0;
+while(p<>null) do
+begin if is_char_node(p) then
+ begin if font_dir[font(p)]<>dir_default then
+ begin KANJI(cx):=info(link(p)); i:=kcat_code(kcatcodekey(cx)); k:=0;
+ if (i=kanji)or(i=kana) then begin t:=q; s:=p; end;
+ p:=link(p); q:=p;
+ end
+ else begin k:=k+1;
+ if k>1 then begin q:=p; s:=null; end;
+ end;
+ end
+else begin case type(p) of
+ penalty_node,mark_node,adjust_node,whatsit_node,
+ glue_node,kern_node,math_node,disp_node:
+ do_nothing;
+ othercases begin q:=p; s:=null; end;
+ endcases;
+ end;
+p:=link(p);
+end
+
+@ @<Declare procedures needed in |hlist_out|, |vlist_out|@>=
+procedure dir_out;
+var @!this_box: pointer; {pointer to containing box}
+begin this_box:=temp_ptr;
+ temp_ptr:=list_ptr(this_box);
+ if (type(temp_ptr)<>hlist_node)and(type(temp_ptr)<>vlist_node) then
+ confusion("dir_out");
+ case abs(box_dir(this_box)) of
+ dir_yoko:
+ case abs(box_dir(temp_ptr)) of
+ dir_tate: {Tate in Yoko}
+ begin cur_v:=cur_v-height(this_box); cur_h:=cur_h+depth(temp_ptr) end;
+ dir_dtou: {DtoU in Yoko}
+ begin cur_v:=cur_v+depth(this_box); cur_h:=cur_h+height(temp_ptr) end;
+ endcases;
+ dir_tate:
+ case abs(box_dir(temp_ptr)) of
+ dir_yoko: {Yoko in Tate}
+ begin cur_v:=cur_v+depth(this_box); cur_h:=cur_h+height(temp_ptr) end;
+ dir_dtou: {DtoU in Tate}
+ begin
+ cur_v:=cur_v+depth(this_box)-height(temp_ptr);
+ cur_h:=cur_h+width(temp_ptr)
+ end;
+ endcases;
+ dir_dtou:
+ case abs(box_dir(temp_ptr)) of
+ dir_yoko: {Yoko in DtoU}
+ begin cur_v:=cur_v-height(this_box); cur_h:=cur_h+depth(temp_ptr) end;
+ dir_tate: {Tate in DtoU}
+ begin
+ cur_v:=cur_v+depth(this_box)-height(temp_ptr);
+ cur_h:=cur_h+width(temp_ptr)
+ end;
+ endcases;
+ endcases;
+ cur_dir_hv:=abs(box_dir(temp_ptr));
+ if type(temp_ptr)=vlist_node then vlist_out at +else hlist_out;
+end;
+
+@ These routines are used to output diagnostic which related direction.
+
+@ @<Basic printing procedures@>=
+procedure print_dir(@!dir:eight_bits); {prints |dir| data}
+begin if dir=dir_yoko then print_char("Y")
+else if dir=dir_tate then print_char("T")
+else if dir=dir_dtou then print_char("D")
+end;
+@#
+procedure print_direction(@!d:integer); {print the direction represented by d}
+begin case abs(d) of
+dir_yoko: print("yoko");
+dir_tate: print("tate");
+dir_dtou: print("dtou");
+end;
+if d<0 then print("(math)");
+print(" direction");
+end;
+
+@ The procedure |set_math_kchar| is same as |set_math_char| which is
+written in section 48.
+
+@<Declare act...@>=
+procedure set_math_kchar(@!c:integer);
+var p:pointer; {the new noad}
+begin p:=new_noad; math_type(nucleus(p)):=math_jchar;
+character(nucleus(p)):=qi(0);
+math_kcode(p):=c; fam(nucleus(p)):=cur_jfam;
+if font_dir[fam_fnt(fam(nucleus(p))+cur_size)]=dir_default then
+ begin print_err("Not two-byte family");
+ help1("IGNORE.");@/
+ error;
+ end;
+type(p):=ord_noad;
+link(tail):=p; tail:=p;
+end;
+
+@ This section is a part of |main_control|.
+
+@<Append KANJI-character |cur_chr| ...@>=
+if is_char_node(tail) then
+ begin if not( (last_jchr<>null) and (link(last_jchr)=tail) ) then
+ begin cx:=qo(character(tail)); @<Insert |post_break_penalty|@>;
+ end;
+ end
+else if type(tail)=ligature_node then
+ begin cx:=qo(character(lig_char(tail))); @<Insert |post_break_penalty|@>;
+ end;
+if direction=dir_tate then
+ begin if font_dir[main_f]=dir_tate then disp:=0
+ else if font_dir[main_f]=dir_yoko then disp:=t_baseline_shift-y_baseline_shift
+ else disp:=t_baseline_shift;
+ main_f:=cur_tfont;
+ end
+else
+ begin if font_dir[main_f]=dir_yoko then disp:=0
+ else if font_dir[main_f]=dir_tate then disp:=y_baseline_shift-t_baseline_shift
+ else disp:=y_baseline_shift;
+ main_f:=cur_jfont;
+ end;
+@<Append |disp_node| at end of displace area@>;
+ins_kp:=false; ligature_present:=false;
+cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f));
+main_i:=orig_char_info(main_f)(qi(0));
+goto main_loop_j+3;
+@#
+main_loop_j+1: space_factor:=1000;
+ if main_f<>null_font then
+ begin if not disp_called then
+ begin prev_node:=tail; tail_append(get_node(small_node_size));
+ type(tail):=disp_node; disp_dimen(tail):=0; disp_called:=true
+ end;
+ fast_get_avail(main_p); font(main_p):=main_f; character(main_p):=cur_l;
+ link(tail):=main_p; tail:=main_p; last_jchr:=tail;
+ fast_get_avail(main_p); info(main_p):=KANJI(cur_chr);
+ link(tail):=main_p; tail:=main_p;
+ cx:=cur_chr; @<Insert kinsoku penalty@>;
+ end;
+ ins_kp:=false;
+again_2:
+ get_next;
+ main_i:=orig_char_info(main_f)(cur_l);
+ case cur_cmd of
+ kanji,kana,other_kchar: begin
+ cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f)); goto main_loop_j+3;
+ end;
+ letter,other_char: begin ins_kp:=true; cur_l:=qi(0); goto main_loop_j+3;
+ end;
+ endcases;
+ x_token;
+ case cur_cmd of
+ kanji,kana,other_kchar: cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f));
+ letter,other_char: begin ins_kp:=true; cur_l:=qi(0); end;
+ char_given: begin
+ if is_char_ascii(cur_chr) then
+ begin ins_kp:=true; cur_l:=qi(0);
+ end
+ else cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f));
+ end;
+ char_num: begin scan_char_num; cur_chr:=cur_val;
+ if is_char_ascii(cur_chr) then
+ begin ins_kp:=true; cur_l:=qi(0);
+ end
+ else cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f));
+ end;
+ inhibit_glue: begin inhibit_glue_flag:=(cur_chr=0); goto again_2; end;
+ othercases begin ins_kp:=max_halfword;
+ cur_l:=qi(-1); cur_r:=non_char; lig_stack:=null;
+ end;
+ endcases;
+@#
+main_loop_j+3:
+ if ins_kp=true then @<Insert |pre_break_penalty| of |cur_chr|@>;
+ if main_f<>null_font then
+ begin @<Look ahead for glue or kerning@>;
+ end
+ else inhibit_glue_flag:=false;
+ if ins_kp=false then begin { Kanji -> Kanji }
+ goto main_loop_j+1;
+ end else if ins_kp=true then begin { Kanji -> Ascii }
+ {@@<Append |disp_node| at begin of displace area@@>;}
+ ins_kp:=false; goto main_loop;
+ end else begin { Kanji -> cs }
+ {@@<Append |disp_node| at begin of displace area@@>;}
+ goto reswitch;
+ end;
+
+@ @<Append |disp_node| at begin ...@>=
+begin if not is_char_node(tail)and(type(tail)=disp_node) then
+ begin if prev_disp=disp then
+ begin free_node(tail,small_node_size); tail:=prev_node; link(tail):=null;
+ end
+ else disp_dimen(tail):=disp;
+ end
+else
+ if disp<>0 or not disp_called then
+ begin prev_node:=tail; tail_append(get_node(small_node_size));
+ type(tail):=disp_node; disp_dimen(tail):=disp; prev_disp:=disp;
+ disp_called:=true
+ end;
+end;
+
+@ @<Append |disp_node| at end ...@>=
+if disp<>0 then
+begin if not is_char_node(tail)and(type(tail)=disp_node) then
+ begin disp_dimen(tail):=0;
+ end
+else
+ begin prev_node:=tail; tail_append(get_node(small_node_size));
+ type(tail):=disp_node; disp_dimen(tail):=0; prev_disp:=disp;
+ disp_called:=true
+ end;
+end;
+
+@ @<Look ahead for glue or kerning@>=
+cur_q:=tail;
+if inhibit_glue_flag<>true then
+ begin
+ if cur_l<qi(0) then cur_l:=qi(0) else inhibit_glue_flag:=false;
+ if (tail=link(head))and(not is_char_node(tail))and(type(tail)=disp_node) then
+ goto skip_loop
+ else begin if char_tag(main_i)=gk_tag then
+ begin main_k:=glue_kern_start(main_f)(main_i);
+ main_j:=font_info[main_k].qqqq;
+ if skip_byte(main_j)>stop_flag then {huge glue/kern table rearranged}
+ begin main_k:=glue_kern_restart(main_f)(main_j);
+ main_j:=font_info[main_k].qqqq;
+ end;
+ loop at +begin if next_char(main_j)=cur_l then if skip_byte(main_j)<=stop_flag then
+ begin if op_byte(main_j)<kern_flag then
+ begin gp:=font_glue[main_f]; cur_r:=op_byte(main_j)*256+rem_byte(main_j);
+ if gp<>null then
+ begin while((type(gp)<>cur_r)and(link(gp)<>null)) do gp:=link(gp);
+ gq:=glue_ptr(gp);
+ end
+ else
+ begin gp:=get_node(small_node_size); font_glue[main_f]:=gp;
+ gq:=null;
+ end;
+ if gq=null then
+ begin type(gp):=cur_r; gq:=new_spec(zero_glue);
+ glue_ptr(gp):=gq;
+ main_k:=exten_base[main_f]+qi((qo(cur_r))*3);
+ width(gq):=font_info[main_k].sc;
+ stretch(gq):=font_info[main_k+1].sc;
+ shrink(gq):=font_info[main_k+2].sc;
+ add_glue_ref(gq); link(gp):=get_node(small_node_size);
+ gp:=link(gp); glue_ptr(gp):=null; link(gp):=null;
+ end;
+ tail_append(new_glue(gq)); subtype(tail):=jfm_skip+1;
+ goto skip_loop;
+ end
+ else begin
+ tail_append(new_kern(char_kern(main_f)(main_j)));
+ goto skip_loop;
+ end;
+ end;
+ if skip_byte(main_j)>=stop_flag then goto skip_loop;
+ main_k:=main_k+qo(skip_byte(main_j))+1; {SKIP property}
+ main_j:=font_info[main_k].qqqq;
+ end;
+ end;
+ end;
+end
+else
+ begin
+ if cur_l<qi(0) then cur_l:=qi(0) else inhibit_glue_flag:=false;
+ end;
+skip_loop: do_nothing;
+
+@ @<Basic printing...@>=
+procedure print_kanji(@!s:KANJI_code); {prints a single character}
+begin
+if s>@"FF then
+ begin print_char(@"100+Hi(s)); print_char(@"100+Lo(s));
+ end else print_char(s);
+end;
+
+@ This procedure changes the direction of the page, if |page_contents|
+is |empty| and ``recent contributions'' does not contain any boxes,
+rules nor insertions.
+
+@<Declare act...@>=
+procedure change_page_direction(@!d: halfword);
+label done;
+var p: pointer; flag:boolean;
+begin flag:=(page_contents=empty);
+if flag and (head<>tail) then begin
+ p:=link(head);
+ while p<>null do
+ case type(p) of
+ hlist_node,vlist_node,dir_node,rule_node,ins_node:
+ begin flag:=false; goto done; end;
+ { |glue_node|, |kern_node|, |penalty_node| are discarded }
+ othercases p:=link(p);
+ endcases;
+ done: do_nothing;
+end;
+if flag then begin direction:=d; page_dir:=d; end
+else begin
+ print_err("Use `"); print_cmd_chr(cur_cmd,d);
+ print("' at top of the page");
+ help3("You can change the direction of the page only when")
+ ("the current page and recent contributions consist of only")
+ ("marks and whatsits."); error;
+ end;
+end;
+
+@ This procedure is used in printing the second line in showing contexts.
+This part is not read by |get_next| yet, so we don't know which bytes
+are part of Japaense characters when the procedure is called.
+
+@<Basic printing...@>=
+procedure print_unread_buffer_with_ptenc(@!f, @!l: integer);
+{ print |buffer[f..l-1]| with code conversion }
+var @!i,@!j: pool_pointer; @!p: integer;
+begin
+ i:=f;
+ while i<l do begin
+ p:=multistrlen(ustringcast(buffer), l, i);
+ if p<>1 then
+ begin for j:=i to i+p-1 do
+ print_char(@"100+buffer[j]);
+ i:=i+p; end
+ else begin print(buffer[i]); incr(i); end;
+ end;
+end;
+
+@* \[54] System-dependent changes.
+ at z
Copied: trunk/Build/source/texk/web2c/uptexdir/ptex_version.h (from rev 69765, trunk/Build/source/texk/web2c/ptexdir/ptex_version.h)
===================================================================
--- trunk/Build/source/texk/web2c/uptexdir/ptex_version.h (rev 0)
+++ trunk/Build/source/texk/web2c/uptexdir/ptex_version.h 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1 @@
+#define PTEX_VERSION "p4.1.1"
Copied: trunk/Build/source/texk/web2c/uptexdir/zfmtcompress.test (from rev 69765, trunk/Build/source/texk/web2c/ptexdir/zfmtcompress.test)
===================================================================
--- trunk/Build/source/texk/web2c/uptexdir/zfmtcompress.test (rev 0)
+++ trunk/Build/source/texk/web2c/uptexdir/zfmtcompress.test 2024-02-10 09:42:44 UTC (rev 69767)
@@ -0,0 +1,102 @@
+#!/bin/sh -vx
+# $Id$
+# Public domain. Originally written by Hironori Kitagawa, 2019.
+# This test is intended to be used in a suitable temporary directory
+# after installing all engines. It should not be enabled in build stage.
+
+BinDir=${BinDir:-.}
+ExeExt=${ExeExt:-}
+
+cat <<'EOF' > stress.tex
+\let\origdump=\dump\let\dump\relax
+\batchmode
+\input plain.tex
+\let\dump\origdump
+
+\count0=0
+\def\A{\ifnum\count0<450000
+ \count1=1000000 \advance\count1\count0
+ \edef\N{QW\the\count1}
+ \expandafter\xdef\csname HOGE\N\endcsname{ABCDEFGHI}%
+ \advance\count0 by1\let\next=\A\else\let\next\relax
+ \fi\next}
+\A
+\let\N\undefined
+\count0=0
+\def\A{\ifnum\count0<199
+ \count1=1000000 \advance\count1\count0
+ \edef\N{\the\count1}
+ \font\S=cmr10 at \N sp\fontdimen39707\S=1sp
+ \advance\count0 by1\let\next=\A\else\let\next\relax
+ \fi\next}
+\A
+\dump
+EOF
+
+cat <<'EOF' > test0.tex
+\font\a=cmss10 at 1000000sp
+\a qwertyuiopasdfghjkl$\int^\infty_0 e^{-x^2}\,dx$\end
+EOF
+
+
+test0() {
+ ENGINE=$1
+ echo $ENGINE
+ $_engine=$BinDir/$ENGINE$ExeExt
+ if [ ! -e $_engine ]; then return 0; fi
+ rm -f stress-$ENGINE.fmt test0.dvi test0.xdv &>/dev/null
+ $_engine -ini -etex -progname=$ENGINE -jobname=stress-$ENGINE stress &>/dev/null
+ ls -l stress-$ENGINE.fmt
+ if [[ "$ENGINE" = "xetex" ]]; then
+ $_engine -fmt=./stress-$ENGINE.fmt -no-pdf test0.tex &>/dev/null
+ ls -l test0.xdv
+ else
+ $_engine -fmt=./stress-$ENGINE.fmt test0.tex &>/dev/null
+ ls -l test0.dvi
+ fi
+}
+
+test0 tex
+test0 etex
+test0 pdftex
+test0 ptex
+test0 eptex
+test0 uptex
+test0 euptex
+test0 xetex
+
+cat <<'EOF' > test1.tex
+\documentclass{article}
+\begin{document}
+The \textit{quick} \textbf{brown} \textsc{fox} jumps over the lazy dog.
+\[
+ \frac{\pi}{2} =
+ \left( \int_{0}^{\infty} \frac{\sin x}{\sqrt{x}} dx \right)^2 =
+ \sum_{k=0}^{\infty} \frac{(2k)!}{2^{2k}(k!)^2} \frac{1}{2k+1} =
+ \prod_{k=1}^{\infty} \frac{4k^2}{4k^2 - 1}
+\]
+\end{document}
+EOF
+
+test1() {
+ ENGINE=$1
+ echo $ENGINE
+ $_engine=$BinDir/$ENGINE$ExeExt
+ if [ ! -e $_engine ]; then return 0; fi
+ rm -f latex-$ENGINE.fmt test1.dvi test1.xdv &>/dev/null
+ $_engine -ini -etex -progname=latex-dev -jobname=latex-$ENGINE latex.ini &>/dev/null
+ ls -l latex-$ENGINE.fmt
+ if [[ "$ENGINE" = "xetex" ]]; then
+ $_engine -fmt=./latex-$ENGINE.fmt -no-pdf test1.tex &>/dev/null
+ ls -l test1.xdv
+ else
+ $_engine -fmt=./latex-$ENGINE.fmt test1.tex &>/dev/null
+ ls -l test1.dvi
+ fi
+}
+
+test1 etex
+test1 pdftex
+test1 eptex
+test1 euptex
+test1 xetex
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