texlive[57736] Build/source/texk/web2c: split enctex.ch for
commits+karl at tug.org
commits+karl at tug.org
Sun Feb 14 00:02:37 CET 2021
Revision: 57736
http://tug.org/svn/texlive?view=revision&revision=57736
Author: karl
Date: 2021-02-14 00:02:37 +0100 (Sun, 14 Feb 2021)
Log Message:
-----------
split enctex.ch for maintainability
Modified Paths:
--------------
trunk/Build/source/texk/web2c/ChangeLog
trunk/Build/source/texk/web2c/Makefile.in
trunk/Build/source/texk/web2c/am/texmf.am
trunk/Build/source/texk/web2c/etexdir/ChangeLog
trunk/Build/source/texk/web2c/etexdir/am/etex.am
trunk/Build/source/texk/web2c/pdftexdir/ChangeLog
trunk/Build/source/texk/web2c/pdftexdir/am/pdftex.am
Added Paths:
-----------
trunk/Build/source/texk/web2c/enctexdir/
trunk/Build/source/texk/web2c/enctexdir/enctex-pdftex.ch
trunk/Build/source/texk/web2c/enctexdir/enctex-tex.ch
trunk/Build/source/texk/web2c/enctexdir/enctex1.ch
trunk/Build/source/texk/web2c/enctexdir/enctex2.ch
Removed Paths:
-------------
trunk/Build/source/texk/web2c/enctex.ch
trunk/Build/source/texk/web2c/enctex2.ch
Modified: trunk/Build/source/texk/web2c/ChangeLog
===================================================================
--- trunk/Build/source/texk/web2c/ChangeLog 2021-02-13 22:18:48 UTC (rev 57735)
+++ trunk/Build/source/texk/web2c/ChangeLog 2021-02-13 23:02:37 UTC (rev 57736)
@@ -1,3 +1,15 @@
+2021-02-13 Karl Berry <karl at freefriends.org>
+
+ * enctexdir/enctex1.ch,
+ * enctexdir/enctex2.ch,
+ * enctexdir/enctex-tex.ch,
+ * enctexdir/enctex-pdftex.ch: new files, from enctex.ch.
+ * am/texmf.am (tex_ch_srcs): split enctex changes into
+ common (enctex1.ch, enctex2.ch) and differing (enctex-tex.ch,
+ enctex-pdftex.ch) pieces to avoid duplicating the whole thing.
+ * enctex.ch,
+ * enctex2.ch: remove.
+
2021-02-13 Hironori Kitagawa <h_kitagawa2001 at yahoo.co.jp>
* eptexdir/am/eptex.am, eptexdir/etex.ch1,
Modified: trunk/Build/source/texk/web2c/Makefile.in
===================================================================
--- trunk/Build/source/texk/web2c/Makefile.in 2021-02-13 22:18:48 UTC (rev 57735)
+++ trunk/Build/source/texk/web2c/Makefile.in 2021-02-13 23:02:37 UTC (rev 57736)
@@ -3774,7 +3774,9 @@
tex_ch_srcs = \
tex.web \
tex.ch \
- enctex.ch \
+ enctexdir/enctex1.ch \
+ enctexdir/enctex-tex.ch \
+ enctexdir/enctex2.ch \
$(tex_ch_synctex) \
tex-binpool.ch
@@ -4267,7 +4269,9 @@
etexdir/tex.ch0 \
tex.ch \
zlib-fmt.ch \
- enctex.ch \
+ enctexdir/enctex1.ch \
+ enctexdir/enctex-tex.ch \
+ enctexdir/enctex2.ch \
$(etex_ch_synctex) \
etexdir/tex.ch1 \
etexdir/tex.ech \
@@ -4545,7 +4549,9 @@
tex.ch \
tracingstacklevels.ch \
zlib-fmt.ch \
- enctex2.ch \
+ enctexdir/enctex1.ch \
+ enctexdir/enctex-pdftex.ch \
+ enctexdir/enctex2.ch \
$(pdftex_ch_synctex) \
pdftexdir/pdftex.ch \
pdftexdir/char-warning-pdftex.ch \
Modified: trunk/Build/source/texk/web2c/am/texmf.am
===================================================================
--- trunk/Build/source/texk/web2c/am/texmf.am 2021-02-13 22:18:48 UTC (rev 57735)
+++ trunk/Build/source/texk/web2c/am/texmf.am 2021-02-13 23:02:37 UTC (rev 57736)
@@ -64,7 +64,9 @@
tex_ch_srcs = \
tex.web \
tex.ch \
- enctex.ch \
+ enctexdir/enctex1.ch \
+ enctexdir/enctex-tex.ch \
+ enctexdir/enctex2.ch \
$(tex_ch_synctex) \
tex-binpool.ch
##
Deleted: trunk/Build/source/texk/web2c/enctex.ch
===================================================================
--- trunk/Build/source/texk/web2c/enctex.ch 2021-02-13 22:18:48 UTC (rev 57735)
+++ trunk/Build/source/texk/web2c/enctex.ch 2021-02-13 23:02:37 UTC (rev 57736)
@@ -1,1110 +0,0 @@
-% enctex.ch: implementation of enc\TeX, to be applied on top of tex.ch.
-% Used by TeX and e-TeX. Originally used by TeX, e-TeX and pdfTeX.
-% The renamed enctex2.ch is used by pdfTeX in order to be applied
-% after tracingstacklevels.ch.
-
- at x [2.20] l.579 - encTeX: global declarations
-xprn: array [ASCII_code] of ASCII_code;
- { non zero iff character is printable }
- at y
-xprn: array [ASCII_code] of ASCII_code;
- { non zero iff character is printable }
-mubyte_read: array [ASCII_code] of pointer;
- { non zero iff character begins the multi byte code }
-mubyte_write: array [ASCII_code] of str_number;
- { non zero iff character expands to multi bytes in log and write files }
-mubyte_cswrite: array [0..127] of pointer;
- { non null iff cs mod 128 expands to multi bytes in log and write files }
-mubyte_skip: integer; { the number of bytes to skip in |buffer| }
-mubyte_keep: integer; { the number of chars we need to keep unchanged }
-mubyte_skeep: integer; { saved |mubyte_keep| }
-mubyte_prefix: integer; { the type of mubyte prefix }
-mubyte_tablein: boolean; { the input side of table will be updated }
-mubyte_tableout: boolean; { the output side of table will be updated }
-mubyte_relax: boolean; { the relax prefix is used }
-mubyte_start: boolean; { we are making the token at the start of the line }
-mubyte_sstart: boolean; { saved |mubyte_start| }
-mubyte_token: pointer; { the token returned by |read_buffer| }
-mubyte_stoken: pointer; { saved first token in mubyte primitive }
-mubyte_sout: integer; { saved value of |mubyte_out| }
-mubyte_slog: integer; { saved value of |mubyte_log| }
-spec_sout: integer; { saved value of |spec_out| }
-no_convert: boolean; { conversion supressed by noconvert primitive }
-active_noconvert: boolean; { true if noconvert primitive is active }
-write_noexpanding: boolean; { true only if we need not write expansion }
-cs_converting: boolean; { true only if we need csname converting }
-special_printing: boolean; { true only if we need converting in special }
-message_printing: boolean; { true if message or errmessage prints to string }
- at z
-
- at x [2.23] l.723 - encTeX
-for i:=@'177 to @'377 do xchr[i]:=i;
- at y
-for i:=@'177 to @'377 do xchr[i]:=i;
-{Initialize enc\TeX\ data.}
-for i:=0 to 255 do mubyte_read[i]:=null;
-for i:=0 to 255 do mubyte_write[i]:=0;
-for i:=0 to 127 do mubyte_cswrite[i]:=null;
-mubyte_keep := 0; mubyte_start := false;
-write_noexpanding := false; cs_converting := false;
-special_printing := false; message_printing := false;
-no_convert := false; active_noconvert := false;
- at z
-
- at x [5.59] l.1508 FIXME -- enc\TeX\ modifications of |print|.
- 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;
- at y
- else begin if (selector>pseudo) and (not special_printing)
- and (not message_printing) 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; no_convert := false; return;
- end
- else if message_printing then
- begin print_char(s); no_convert := false; return;
- end;
- if (mubyte_log>0) and (not no_convert) and (mubyte_write[s]>0) then
- s := mubyte_write[s]
- else if xprn[s] or special_printing then
- begin print_char(s); no_convert := false; return; end;
- no_convert := false;
- at z
-
- at x [5.71] encTeX - native buffer printing
-if last<>first then for k:=first to last-1 do print(buffer[k]);
- at y
-k:=first; while k < last do begin print_buffer(k) end;
- at z
-
- at x [17.230] l.4725 - encTeX: xord_code_base, xchr_code_base, prn_code_base,
- at d math_font_base=cur_font_loc+1 {table of 48 math font numbers}
- at y
- at d xord_code_base=cur_font_loc+1
- at d xchr_code_base=xord_code_base+1
- at d xprn_code_base=xchr_code_base+1
- at d math_font_base=xprn_code_base+1
- at z
-
-% encTeX: \mubytein \mubyteout \mubytelog and \specialout
- at x [17.236] l.4954
- at d web2c_int_pars=web2c_int_base+3 {total number of web2c's integer parameters}
- at y
- at d mubyte_in_code=web2c_int_base+3 {if positive then reading mubytes is active}
- at d mubyte_out_code=web2c_int_base+4 {if positive then printing mubytes is active}
- at d mubyte_log_code=web2c_int_base+5 {if positive then print mubytes to log and terminal}
- at d spec_out_code=web2c_int_base+6 {if positive then print specials by mubytes}
- at d web2c_int_pars=web2c_int_base+7 {total number of web2c's integer parameters}
- at z
-
-% encTeX: \mubytein \mubyteout \mubytelog and \specialout
- at x [17.236] l.5016
- at d tracing_char_sub_def==int_par(tracing_char_sub_def_code)
- at y
- at d tracing_char_sub_def==int_par(tracing_char_sub_def_code)
- at d mubyte_in==int_par(mubyte_in_code)
- at d mubyte_out==int_par(mubyte_out_code)
- at d mubyte_log==int_par(mubyte_log_code)
- at d spec_out==int_par(spec_out_code)
- at z
-
-% encTeX: \mubytein \mubyteout \mubytelog and \specialout
- at x [17.237] l.5080
-tracing_char_sub_def_code:print_esc("tracingcharsubdef");
- at y
-tracing_char_sub_def_code:print_esc("tracingcharsubdef");
-mubyte_in_code:print_esc("mubytein");
-mubyte_out_code:print_esc("mubyteout");
-mubyte_log_code:print_esc("mubytelog");
-spec_out_code:print_esc("specialout");
- at z
-
-% encTeX: \mubytein \mubyteout \mubytelog and \specialout
- at x [17.238] l.5200
-@!@:tracing_char_sub_def_}{\.{\\tracingcharsubdef} primitive@>
- end;
- at y
-@!@:tracing_char_sub_def_}{\.{\\tracingcharsubdef} primitive@>
- end;
-if enctex_p then
- begin enctex_enabled_p:=true;
- primitive("mubytein",assign_int,int_base+mubyte_in_code);@/
-@!@:mubyte_in_}{\.{\\mubytein} primitive@>
- primitive("mubyteout",assign_int,int_base+mubyte_out_code);@/
-@!@:mubyte_out_}{\.{\\mubyteout} primitive@>
- primitive("mubytelog",assign_int,int_base+mubyte_log_code);@/
-@!@:mubyte_log_}{\.{\\mubytelog} primitive@>
- primitive("specialout",assign_int,int_base+spec_out_code);@/
-@!@:spec_out_}{\.{\\specialout} primitive@>
-end;
- at z
-
- at x [18.262] - encTeX: control sequence to byte sequence
-they may be unprintable.
-
-@<Basic printing...@>=
-procedure print_cs(@!p:integer); {prints a purported control sequence}
-begin if p<hash_base then {single character}
- at y
-they may be unprintable.
-
-The conversion from control sequence to byte sequence for enc\TeX is
-implemented here. Of course, the simplest way is to implement an array
-of string pointers with |hash_size| length, but we assume that only a
-few control sequences will need to be converted. So |mubyte_cswrite|,
-an array with only 128 items, is used. The items point to the token
-lists. First token includes a csname number and the second points the
-string to be output. The third token includes the number of another
-csname and fourth token its pointer to the string etc. We need to do
-the sequential searching in one of the 128 token lists.
-
-@<Basic printing...@>=
-procedure print_cs(@!p:integer); {prints a purported control sequence}
-var q: pointer;
- s: str_number;
-begin
- if active_noconvert and (not no_convert) and
- (eq_type(p) = let) and (equiv(p) = normal+11) then { noconvert }
- begin
- no_convert := true;
- return;
- end;
- s := 0;
- if cs_converting and (not no_convert) then
- begin
- q := mubyte_cswrite [p mod 128] ;
- while q <> null do
- if info (q) = p then
- begin
- s := info (link(q)); q := null;
- end else q := link (link (q));
- end;
- no_convert := false;
- if s > 0 then print (s)
- else if p<hash_base then {single character}
- at z
-
- at x [18.262] - encTeX: exit label for print_cs
- print_char(" ");
- end;
-end;
- at y
- print_char(" ");
- end;
-exit: end;
- at z
-
- at x [18.265] - encTeX: \endmubyte primitive
-primitive("endcsname",end_cs_name,0);@/
-@!@:end_cs_name_}{\.{\\endcsname} primitive@>
- at y
-primitive("endcsname",end_cs_name,0);@/
-@!@:end_cs_name_}{\.{\\endcsname} primitive@>
-if enctex_p then
-begin
- primitive("endmubyte",end_cs_name,10);@/
-@!@:end_mubyte_}{\.{\\endmubyte} primitive@>
-end;
- at z
-
- at x [18.266] - encTeX: \endmubyte primitive
-end_cs_name: print_esc("endcsname");
- at y
-end_cs_name: if chr_code = 10 then print_esc("endmubyte")
- else print_esc("endcsname");
- at z
-
- at x [22.318] encTeX - native buffer printing
-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
-i := start; mubyte_skeep := mubyte_keep;
-mubyte_sstart := mubyte_start; mubyte_start := false;
-if j>0 then while i < j do
-begin
- if i=loc then set_trick_count;
- print_buffer(i);
-end;
-mubyte_keep := mubyte_skeep; mubyte_start := mubyte_sstart
- at z
-
- at x [24.332] encTeX: insert the added functions
-appear on that line. (There might not be any tokens at all, if the
-|end_line_char| has |ignore| as its catcode.)
- at y
-appear on that line. (There might not be any tokens at all, if the
-|end_line_char| has |ignore| as its catcode.)
-
-Some additional routines used by the enc\TeX extension have to be
-declared at this point.
-
- at p @t\4@>@<Declare additional routines for enc\TeX@>@/
- at z
-
- at x [24.341] - encTeX: more declarations in expand processor
-var k:0..buf_size; {an index into |buffer|}
-@!t:halfword; {a token}
- at y
-var k:0..buf_size; {an index into |buffer|}
-@!t:halfword; {a token}
-@!i,@!j: 0..buf_size; {more indexes for encTeX}
-@!mubyte_incs: boolean; {control sequence is converted by mubyte}
-@!p:pointer; {for encTeX test if noexpanding}
- at z
-
- at x [24.343] - encTeX: access the buffer via read_buffer
- begin cur_chr:=buffer[loc]; incr(loc);
- at y
- begin
- { Use |k| instead of |loc| for type correctness. }
- k := loc;
- cur_chr := read_buffer (k);
- loc := k; incr (loc);
- if (mubyte_token > 0) then
- begin
- state := mid_line;
- cur_cs := mubyte_token - cs_token_flag;
- goto found;
- end;
- at z
-
- at x [24.354] - encTeX: access the buffer via read_buffer
-else begin start_cs: k:=loc; cur_chr:=buffer[k]; cat:=cat_code(cur_chr);
- incr(k);
- at y
-else begin start_cs:
- mubyte_incs := false; k := loc; mubyte_skeep := mubyte_keep;
- cur_chr := read_buffer (k); cat := cat_code (cur_chr);
- if (mubyte_in>0) and (not mubyte_incs) and
- ((mubyte_skip>0) or (cur_chr<>buffer[k])) then mubyte_incs := true;
- incr (k);
- if mubyte_token > 0 then
- begin
- state := mid_line;
- cur_cs := mubyte_token - cs_token_flag;
- goto found;
- end;
- at z
-
- at x [24.354] - encTeX: noexpanding the marked control sequence
- 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;
- at y
- mubyte_keep := mubyte_skeep;
- cur_cs:=single_base + read_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;
-if write_noexpanding then
-begin
- p := mubyte_cswrite [cur_cs mod 128];
- while p <> null do
- if info (p) = cur_cs then
- begin
- cur_cmd := relax; cur_chr := 256; p := null;
- end else p := link (link (p));
-end;
- at z
-
- at x [24.355] - encTeX: deactivated when reading such \^^ab control sequences
- limit:=limit-d; first:=first-d;
- at y
- limit:=limit-d; first:=first-d;
- if mubyte_in>0 then mubyte_keep := k-loc;
- at z
-
- at x [24.356] - encTeX: access the buffer via read_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
-begin
- repeat cur_chr := read_buffer (k); cat := cat_code (cur_chr);
- if mubyte_token>0 then cat := escape;
- if (mubyte_in>0) and (not mubyte_incs) and (cat=letter) and
- ((mubyte_skip>0) or (cur_chr<>buffer[k])) then mubyte_incs := true;
- incr (k);
- until (cat <> letter) or (k > limit);
- @<If an expanded...@>;
- if cat <> letter then
- begin
- decr (k); k := k - mubyte_skip;
- end;
- if k > loc + 1 then { multiletter control sequence has been scanned }
- begin
- if mubyte_incs then { multibyte in csname occurrs }
- begin
- i := loc; j := first; mubyte_keep := mubyte_skeep;
- if j - loc + k > max_buf_stack then
- begin
- max_buf_stack := j - loc + k;
- if max_buf_stack >= buf_size then
- begin
- max_buf_stack := buf_size;
- overflow ("buffer size", buf_size);
- end;
- end;
- while i < k do
- begin
- buffer [j] := read_buffer (i);
- incr (i); incr (j);
- end;
- if j = first+1 then
- cur_cs := single_base + buffer [first]
- else
- cur_cs := id_lookup (first, j-first);
- end else cur_cs := id_lookup (loc, k-loc) ;
- loc := k;
- goto found;
- end;
-end
- at z
-
- at x [24.357] - encTeX: noexpanding the marked control sequence
- else check_outer_validity;
- at y
- else check_outer_validity;
- if write_noexpanding then
- begin
- p := mubyte_cswrite [cur_cs mod 128];
- while p <> null do
- if info (p) = cur_cs then
- begin
- cur_cmd := relax; cur_chr := 256; p := null;
- end else p := link (link (p));
- end;
- at z
-
- at x [24.363] encTeX - native buffer printing
- if start<limit then for k:=start to limit-1 do print(buffer[k]);
- at y
- k := start;
- while k < limit do begin print_buffer(k) end;
- at z
-
- at x [25.372] - encTeX: we need to distinguish \endcsname and \endmubyte
-if cur_cmd<>end_cs_name then @<Complain about missing \.{\\endcsname}@>;
- at y
-if (cur_cmd<>end_cs_name) or (cur_chr<>0) then @<Complain about missing \.{\\endcsname}@>;
- at z
-
- at x [26.414] l.8358 - encTeX: accessing xord/xchr/xprn
-if m=math_code_base then scanned_result(ho(math_code(cur_val)))(int_val)
- at y
-if m=xord_code_base then scanned_result(xord[cur_val])(int_val)
-else if m=xchr_code_base then scanned_result(xchr[cur_val])(int_val)
-else if m=xprn_code_base then scanned_result(xprn[cur_val])(int_val)
-else if m=math_code_base then scanned_result(ho(math_code(cur_val)))(int_val)
- at z
-
- at x [29.534] l.10293 - enc\TeX: add enc\TeX banner after loading fmt file
- begin wlog_cr; wlog('MLTeX v2.2 enabled');
- end;
- at y
- begin wlog_cr; wlog('MLTeX v2.2 enabled');
- end;
-if enctex_enabled_p then
- begin wlog_cr; wlog(encTeX_banner); wlog(', reencoding enabled');
- if translate_filename then
- begin wlog_cr;
- wlog(' (\xordcode, \xchrcode, \xprncode overridden by TCX)');
- end;
- end;
- at z
-
- at x [48.1138] l.21648 - encTeX: \endmubyte primitive
-begin print_err("Extra "); print_esc("endcsname");
- at .Extra \\endcsname@>
-help1("I'm ignoring this, since I wasn't doing a \csname.");
- at y
-begin
-if cur_chr = 10 then
-begin
- print_err("Extra "); print_esc("endmubyte");
- at .Extra \\endmubyte@>
- help1("I'm ignoring this, since I wasn't doing a \mubyte.");
-end else begin
- print_err("Extra "); print_esc("endcsname");
- at .Extra \\endcsname@>
- help1("I'm ignoring this, since I wasn't doing a \csname.");
-end;
- at z
-
- at x [49.1211] - encTeX: extra variables for \mubyte primitive
-@!p,@!q:pointer; {for temporary short-term use}
- at y
-@!p,@!q,@!r:pointer; {for temporary short-term use}
- at z
-
- at x [49.1219] - encTeX: \mubyte and \noconvert primitives
-primitive("futurelet",let,normal+1);@/
-@!@:future_let_}{\.{\\futurelet} primitive@>
- at y
-primitive("futurelet",let,normal+1);@/
-@!@:future_let_}{\.{\\futurelet} primitive@>
-if enctex_p then
-begin
- primitive("mubyte",let,normal+10);@/
-@!@:mubyte_}{\.{\\mubyte} primitive@>
- primitive("noconvert",let,normal+11);@/
-@!@:noconvert_}{\.{\\noconvert} primitive@>
-end;
- at z
-
- at x [49.1220] - encTeX: \mubyte primitive
-let: if chr_code<>normal then print_esc("futurelet")@+else print_esc("let");
- at y
-let: if chr_code<>normal then
- if chr_code = normal+10 then print_esc("mubyte")
- else if chr_code = normal+11 then print_esc("noconvert")
- else print_esc("futurelet")
- else print_esc("let");
- at z
-
- at x [49.1221] - encTeX: \mubyte primitive
-let: begin n:=cur_chr;
- at y
-let: if cur_chr = normal+11 then do_nothing { noconvert primitive }
- else if cur_chr = normal+10 then { mubyte primitive }
- begin
- selector:=term_and_log;
- get_token;
- mubyte_stoken := cur_tok;
- if cur_tok <= cs_token_flag then mubyte_stoken := cur_tok mod 256;
- mubyte_prefix := 60; mubyte_relax := false;
- mubyte_tablein := true; mubyte_tableout := true;
- get_x_token;
- if cur_cmd = spacer then get_x_token;
- if cur_cmd = sub_mark then
- begin
- mubyte_tableout := false; get_x_token;
- if cur_cmd = sub_mark then
- begin
- mubyte_tableout := true; mubyte_tablein := false;
- get_x_token;
- end;
- end else if (mubyte_stoken > cs_token_flag) and
- (cur_cmd = mac_param) then
- begin
- mubyte_tableout := false;
- scan_int; mubyte_prefix := cur_val; get_x_token;
- if mubyte_prefix > 50 then mubyte_prefix := 52;
- if mubyte_prefix <= 0 then mubyte_prefix := 51;
- end
- else if (mubyte_stoken > cs_token_flag) and (cur_cmd = relax) then
- begin
- mubyte_tableout := true; mubyte_tablein := false;
- mubyte_relax := true; get_x_token;
- end;
- r := get_avail; p := r;
- while cur_cs = 0 do begin store_new_token (cur_tok); get_x_token; end;
- if (cur_cmd <> end_cs_name) or (cur_chr <> 10) then
- begin
- print_err("Missing "); print_esc("endmubyte"); print(" inserted");
- help2("The control sequence marked <to be read again> should")@/
-("not appear in <byte sequence> between \mubyte and \endmubyte.");
- back_error;
- end;
- p := link(r);
- if (p = null) and mubyte_tablein then
- begin
- print_err("The empty <byte sequence>, ");
- print_esc("mubyte"); print(" ignored");
- help2("The <byte sequence> in")@/
-("\mubyte <token> <byte sequence>\endmubyte should not be empty.");
- error;
- end else begin
- while p <> null do
- begin
- append_char (info(p) mod 256);
- p := link (p);
- end;
- flush_list (r);
- if (str_start [str_ptr] + 1 = pool_ptr) and
- (str_pool [pool_ptr-1] = mubyte_stoken) then
- begin
- if mubyte_read [mubyte_stoken] <> null
- and mubyte_tablein then { clearing data }
- dispose_munode (mubyte_read [mubyte_stoken]);
- if mubyte_tablein then mubyte_read [mubyte_stoken] := null;
- if mubyte_tableout then mubyte_write [mubyte_stoken] := 0;
- pool_ptr := str_start [str_ptr];
- end else begin
- if mubyte_tablein then mubyte_update; { updating input side }
- if mubyte_tableout then { updating output side }
- begin
- if mubyte_stoken > cs_token_flag then { control sequence }
- begin
- dispose_mutableout (mubyte_stoken-cs_token_flag);
- if (str_start [str_ptr] < pool_ptr) or mubyte_relax then
- begin { store data }
- r := mubyte_cswrite[(mubyte_stoken-cs_token_flag) mod 128];
- p := get_avail;
- mubyte_cswrite[(mubyte_stoken-cs_token_flag) mod 128] := p;
- info (p) := mubyte_stoken-cs_token_flag;
- link (p) := get_avail;
- p := link (p);
- if mubyte_relax then begin
- info (p) := 0; pool_ptr := str_start [str_ptr];
- end else info (p) := slow_make_string;
- link (p) := r;
- end;
- end else begin { single character }
- if str_start [str_ptr] = pool_ptr then
- mubyte_write [mubyte_stoken] := 0
- else
- mubyte_write [mubyte_stoken] := slow_make_string;
- end;
- end else pool_ptr := str_start [str_ptr];
- end;
- end;
- end else begin { let primitive }
- n:=cur_chr;
- at z
-
- at x [49.1230] l.22936 - encTeX: \xordcode, \xchrcode, \xprncode primitives
-primitive("catcode",def_code,cat_code_base);
-@!@:cat_code_}{\.{\\catcode} primitive@>
- at y
-primitive("catcode",def_code,cat_code_base);
-@!@:cat_code_}{\.{\\catcode} primitive@>
-if enctex_p then
-begin
- primitive("xordcode",def_code,xord_code_base);
-@!@:xord_code_}{\.{\\xordcode} primitive@>
- primitive("xchrcode",def_code,xchr_code_base);
-@!@:xchr_code_}{\.{\\xchrcode} primitive@>
- primitive("xprncode",def_code,xprn_code_base);
-@!@:xprn_code_}{\.{\\xprncode} primitive@>
-end;
- at z
-
- at x [49.1231] l.22956 - encTeX: \xordcode, \xchrcode, \xprncode primitives
-def_code: if chr_code=cat_code_base then print_esc("catcode")
- at y
-def_code: if chr_code=xord_code_base then print_esc("xordcode")
- else if chr_code=xchr_code_base then print_esc("xchrcode")
- else if chr_code=xprn_code_base then print_esc("xprncode")
- else if chr_code=cat_code_base then print_esc("catcode")
- at z
-
- at x [49.1232] l.22969 - encTeX: setting a new value to xchr/xord/xprn
- p:=cur_chr; scan_char_num; p:=p+cur_val; scan_optional_equals;
- scan_int;
- at y
- p:=cur_chr; scan_char_num;
- if p=xord_code_base then p:=cur_val
- else if p=xchr_code_base then p:=cur_val+256
- else if p=xprn_code_base then p:=cur_val+512
- else p:=p+cur_val;
- scan_optional_equals;
- scan_int;
- at z
-
- at x [49.1232] l.22980 - encTeX: setting a new value to xchr/xord/xprn
- if p<math_code_base then define(p,data,cur_val)
- at y
- if p<256 then xord[p]:=cur_val
- else if p<512 then xchr[p-256]:=cur_val
- else if p<768 then xprn[p-512]:=cur_val
- else if p<math_code_base then define(p,data,cur_val)
- at z
-
- at x [49.1279] - encTeX: implement \noconvert
-old_setting:=selector; selector:=new_string;
-token_show(def_ref); selector:=old_setting;
- at y
-old_setting:=selector; selector:=new_string;
-message_printing := true; active_noconvert := true;
-token_show(def_ref);
-message_printing := false; active_noconvert := false;
-selector:=old_setting;
- at z
-
-% encTeX: |slow_print| is too eager to expand printed strings. To
-% selectively suppress or enable expansion (needed to \noconvert)
-% |print| will look at |message_printing|. So we bypass |slow_print|
-% and go directly to |print| instead.
- at x [49.1279] - encTeX: to handle \noconvert in messages go directly to |print|
-slow_print(s); update_terminal;
- at y
-print(s); update_terminal;
- at z
-
- at x [49.1279] - encTeX: to handle \noconvert in messages go directly to |print|
-begin print_err(""); slow_print(s);
- at y
-begin print_err(""); print(s);
- at z
-
-% encTeX: dump encTeX-specific data to fmt file.
- at x [50.1302] l.23694
-@<Dump ML\TeX-specific data@>;
- at y
-@<Dump ML\TeX-specific data@>;
-@<Dump enc\TeX-specific data@>;
- at z
-
-% encTeX: undump encTeX-specific data from fmt file.
- at x [50.1303] l.23694
-@<Undump ML\TeX-specific data@>;
- at y
-@<Undump ML\TeX-specific data@>;
-@<Undump enc\TeX-specific data@>;
- at z
-
- at x [51.1337] l.24371 - enc\TeX: add. enc\TeX banner after loading fmt file
- begin wterm_ln('MLTeX v2.2 enabled');
- end;
- at y
- begin wterm_ln('MLTeX v2.2 enabled');
- end;
-if enctex_enabled_p then
- begin wterm(encTeX_banner); wterm_ln(', reencoding enabled.');
- if translate_filename then begin
- wterm_ln(' (\xordcode, \xchrcode, \xprncode overridden by TCX)');
- end;
- end;
- at z
-
- at x [53.1341] - encTeX: keep track of mubyte value for \write
- at d write_stream(#) == info(#+1) {stream number (0 to 17)}
- at y
- at d write_stream(#) == type(#+1) {stream number (0 to 17)}
- at d mubyte_zero == 64
- at d write_mubyte(#) == subtype(#+1) {mubyte value + |mubyte_zero|}
- at z
-
- at x [53.1350] - encTeX: \write stores mubyte_out value
-write_stream(tail):=cur_val;
- at y
-write_stream(tail):=cur_val;
-if mubyte_out + mubyte_zero < 0 then write_mubyte(tail) := 0
-else if mubyte_out + mubyte_zero >= 2*mubyte_zero then
- write_mubyte(tail) := 2*mubyte_zero - 1
- else write_mubyte(tail) := mubyte_out + mubyte_zero;
- at z
-
- at x [53.1353] - encTeX: \special stores specialout and mubyteout values
-begin new_whatsit(special_node,write_node_size); write_stream(tail):=null;
-p:=scan_toks(false,true); write_tokens(tail):=def_ref;
- at y
-begin new_whatsit(special_node,write_node_size);
-if spec_out + mubyte_zero < 0 then write_stream(tail) := 0
-else if spec_out + mubyte_zero >= 2*mubyte_zero then
- write_stream(tail) := 2*mubyte_zero - 1
- else write_stream(tail) := spec_out + mubyte_zero;
-if mubyte_out + mubyte_zero < 0 then write_mubyte(tail) := 0
-else if mubyte_out + mubyte_zero >= 2*mubyte_zero then
- write_mubyte(tail) := 2*mubyte_zero - 1
- else write_mubyte(tail) := mubyte_out + mubyte_zero;
-if (spec_out = 2) or (spec_out = 3) then
- if (mubyte_out > 2) or (mubyte_out = -1) or (mubyte_out = -2) then
- write_noexpanding := true;
-p:=scan_toks(false,true); write_tokens(tail):=def_ref;
-write_noexpanding := false;
- at z
-
- at x [53.1355] - encTeX: \write prints \mubyteout value
-else print_char("-");
- at y
-else print_char("-");
-if (s = "write") and (write_mubyte (p) <> mubyte_zero) then
-begin
- print_char ("<"); print_int (write_mubyte(p)-mubyte_zero); print_char (">");
-end;
- at z
-
- at x [53.1356] - encTeX: \special prints \specialout and \mubyteout values
-special_node:begin print_esc("special");
- at y
-special_node:begin print_esc("special");
-if write_stream(p) <> mubyte_zero then
-begin
- print_char ("<"); print_int (write_stream(p)-mubyte_zero);
- if (write_stream(p)-mubyte_zero = 2) or
- (write_stream(p)-mubyte_zero = 3) then
- begin
- print_char (":"); print_int (write_mubyte(p)-mubyte_zero);
- end;
- print_char (">");
-end;
- at z
-
- at x [53.1368] - encTeX: conversions in \special
-old_setting:=selector; selector:=new_string;
- at y
-old_setting:=selector; selector:=new_string;
-spec_sout := spec_out; spec_out := write_stream(p) - mubyte_zero;
-mubyte_sout := mubyte_out; mubyte_out := write_mubyte(p) - mubyte_zero;
-active_noconvert := true;
-mubyte_slog := mubyte_log;
-mubyte_log := 0;
-if (mubyte_out > 0) or (mubyte_out = -1) then mubyte_log := 1;
-if (spec_out = 2) or (spec_out = 3) then
-begin
- if (mubyte_out > 0) or (mubyte_out = -1) then
- begin
- special_printing := true; mubyte_log := 1;
- end;
- if mubyte_out > 1 then cs_converting := true;
-end;
- at z
-
- at x [53.1368] - encTeX: conversions in \special
-for k:=str_start[str_ptr] to pool_ptr-1 do dvi_out(so(str_pool[k]));
- at y
-if (spec_out = 1) or (spec_out = 3) then
- for k:=str_start[str_ptr] to pool_ptr-1 do
- str_pool[k] := si(xchr[so(str_pool[k])]);
-for k:=str_start[str_ptr] to pool_ptr-1 do dvi_out(so(str_pool[k]));
-spec_out := spec_sout; mubyte_out := mubyte_sout; mubyte_log := mubyte_slog;
-special_printing := false; cs_converting := false;
-active_noconvert := false;
- at z
-
- at x [53.1370] l.24770 - encTeX
-begin @<Expand macros in the token list
- at y
-begin
-mubyte_sout := mubyte_out; mubyte_out := write_mubyte(p) - mubyte_zero;
-if (mubyte_out > 2) or (mubyte_out = -1) or (mubyte_out = -2) then
- write_noexpanding := true;
-@<Expand macros in the token list
- at z
-
- at x [53.1370] - encTeX: conversion in parameter of \write
-token_show(def_ref); print_ln;
- at y
-active_noconvert := true;
-if mubyte_out > 1 then cs_converting := true;
-mubyte_slog := mubyte_log;
-if (mubyte_out > 0) or (mubyte_out = -1) then mubyte_log := 1
-else mubyte_log := 0;
-token_show(def_ref); print_ln;
-cs_converting := false; write_noexpanding := false;
-active_noconvert := false;
-mubyte_out := mubyte_sout; mubyte_log := mubyte_slog;
- at z
-
- at x[54.1376] l.24903 - enc\TeX
-@* \[54] System-dependent changes.
- at y
-@* \[54/enc\TeX] System-dependent changes for enc\TeX.
-
- at d encTeX_banner == ' encTeX v. Jun. 2004'
-
-@ The boolean variable |enctex_p| is set by web2c according to the given
-command line option (or an entry in the configuration file) before any
-\TeX{} function is called.
-
-@<Global...@> =
-@!enctex_p: boolean;
-
-
-@ The boolean variable |enctex_enabled_p| is used to enable enc\TeX's
-primitives. It is initialised to |false|. When loading a \.{FMT} it
-is set to the value of the boolean |enctex_p| saved in the \.{FMT} file.
-Additionally it is set to the value of |enctex_p| in Ini\TeX.
-
-@<Glob...@>=
-@!enctex_enabled_p:boolean; {enable encTeX}
-
-
-@ @<Set init...@>=
-enctex_enabled_p:=false;
-
-
-@ Auxiliary functions/procedures for enc\TeX{} (by Petr Olsak) follow.
-These functions implement the \.{\\mubyte} code to convert
-the multibytes in |buffer| to one byte or to one control
-sequence. These functions manipulate a mubyte tree: each node of
-this tree is token list with n+1 tokens (first token consist the byte
-from the byte sequence itself and the other tokens point to the
-branches). If you travel from root of the tree to a leaf then you
-find exactly one byte sequence which we have to convert to one byte or
-control sequence. There are two variants of the leaf: the ``definitive
-end'' or the ``middle leaf'' if a longer byte sequence exists and the mubyte
-tree continues under this leaf. First variant is implemented as one
-memory word where the link part includes the token to
-which we have to convert and type part includes the number 60 (normal
-conversion) or 1..52 (insert the control sequence).
-The second variant of ``middle leaf'' is implemented as two memory words:
-first one has a type advanced by 64 and link points to the second
-word where info part includes the token to which we have to convert
-and link points to the next token list with the branches of
-the subtree.
-
-The inverse: one byte to multi byte (for log printing and \.{\\write}
-printing) is implemented via a pool. Each multibyte sequence is stored
-in a pool as a string and |mubyte_write|[{\it printed char\/}] points
-to this string.
-
- at d new_mubyte_node ==
- link (p) := get_avail; p := link (p); info (p) := get_avail; p := info (p)
- at d subinfo (#) == subtype (#)
-
-@<Basic printing...@>=
-{ read |buffer|[|i|] and convert multibyte. |i| should have been
- of type 0..|buf_size|, but web2c doesn't like that construct in
- argument lists. }
-function read_buffer(var i:integer):ASCII_code;
-var p: pointer;
- last_found: integer;
- last_type: integer;
-begin
- mubyte_skip := 0; mubyte_token := 0;
- read_buffer := buffer[i];
- if mubyte_in = 0 then
- begin
- if mubyte_keep > 0 then mubyte_keep := 0;
- return ;
- end;
- last_found := -2;
- if (i = start) and (not mubyte_start) then
- begin
- mubyte_keep := 0;
- if (end_line_char >= 0) and (end_line_char < 256) then
- if mubyte_read [end_line_char] <> null then
- begin
- mubyte_start := true; mubyte_skip := -1;
- p := mubyte_read [end_line_char];
- goto continue;
- end;
- end;
-restart:
- mubyte_start := false;
- if (mubyte_read [buffer[i]] = null) or (mubyte_keep > 0) then
- begin
- if mubyte_keep > 0 then decr (mubyte_keep);
- return ;
- end;
- p := mubyte_read [buffer[i]];
-continue:
- if type (p) >= 64 then
- begin
- last_type := type (p) - 64;
- p := link (p);
- mubyte_token := info (p); last_found := mubyte_skip;
- end else if type (p) > 0 then
- begin
- last_type := type (p);
- mubyte_token := link (p);
- goto found;
- end;
- incr (mubyte_skip);
- if i + mubyte_skip > limit then
- begin
- mubyte_skip := 0;
- if mubyte_start then goto restart;
- return;
- end;
- repeat
- p := link (p);
- if subinfo (info(p)) = buffer [i+mubyte_skip] then
- begin
- p := info (p); goto continue;
- end;
- until link (p) = null;
- mubyte_skip := 0;
- if mubyte_start then goto restart;
- if last_found = -2 then return; { no found }
- mubyte_skip := last_found;
-found:
- if mubyte_token < 256 then { multibyte to one byte }
- begin
- read_buffer := mubyte_token; mubyte_token := 0;
- i := i + mubyte_skip;
- if mubyte_start and (i >= start) then mubyte_start := false;
- return;
- end else begin { multibyte to control sequence }
- read_buffer := 0;
- if last_type = 60 then { normal conversion }
- i := i + mubyte_skip
- else begin { insert control sequence }
- decr (i); mubyte_keep := last_type;
- if i < start then mubyte_start := true;
- if last_type = 52 then mubyte_keep := 10000;
- if last_type = 51 then mubyte_keep := mubyte_skip + 1;
- mubyte_skip := -1;
- end;
- if mubyte_start and (i >= start) then mubyte_start := false;
- return;
- end;
-exit: end;
-
-@ @<Declare additional routines for enc\TeX@>=
-procedure mubyte_update; { saves new string to mubyte tree }
-var j: pool_pointer;
- p: pointer;
- q: pointer;
- in_mutree: integer;
-begin
- j := str_start [str_ptr];
- if mubyte_read [so(str_pool[j])] = null then
- begin
- in_mutree := 0;
- p := get_avail;
- mubyte_read [so(str_pool[j])] := p;
- subinfo (p) := so(str_pool[j]); type (p) := 0;
- end else begin
- in_mutree := 1;
- p := mubyte_read [so(str_pool[j])];
- end;
- incr (j);
- while j < pool_ptr do
- begin
- if in_mutree = 0 then
- begin
- new_mubyte_node; subinfo (p) := so(str_pool[j]); type (p) := 0;
- end else { |in_mutree| = 1 }
- if (type (p) > 0) and (type (p) < 64) then
- begin
- type (p) := type (p) + 64;
- q := link (p); link (p) := get_avail; p := link (p);
- info (p) := q;
- new_mubyte_node; subinfo (p) := so(str_pool[j]); type (p) := 0;
- in_mutree := 0;
- end else begin
- if type (p) >= 64 then p := link (p);
- repeat
- p := link (p);
- if subinfo (info(p)) = so(str_pool[j]) then
- begin
- p := info (p);
- goto continue;
- end;
- until link (p) = null;
- new_mubyte_node; subinfo (p) := so(str_pool[j]); type (p) := 0;
- in_mutree := 0;
- end;
-continue:
- incr (j);
- end;
- if in_mutree = 1 then
- begin
- if type (p) = 0 then
- begin
- type (p) := mubyte_prefix + 64;
- q := link (p); link (p) := get_avail; p := link (p);
- link (p) := q; info (p) := mubyte_stoken;
- return;
- end;
- if type (p) >= 64 then
- begin
- type (p) := mubyte_prefix + 64;
- p := link (p); info (p) := mubyte_stoken;
- return;
- end;
- end;
- type (p) := mubyte_prefix;
- link (p) := mubyte_stoken;
-exit: end;
-@#
-procedure dispose_munode (p: pointer); { frees a mu subtree recursivelly }
-var q: pointer;
-begin
- if (type (p) > 0) and (type (p) < 64) then free_avail (p)
- else begin
- if type (p) >= 64 then
- begin
- q := link (p); free_avail (p); p := q;
- end;
- q := link (p); free_avail (p); p := q;
- while p <> null do
- begin
- dispose_munode (info (p));
- q := link (p);
- free_avail (p);
- p := q;
- end;
- end;
-end;
-@#
-procedure dispose_mutableout (cs: pointer); { frees record from out table }
-var p, q, r: pointer;
-begin
- p := mubyte_cswrite [cs mod 128];
- r := null;
- while p <> null do
- if info (p) = cs then
- begin
- if r <> null then link (r) := link (link (p))
- else mubyte_cswrite[cs mod 128] := link (link (p));
- q := link (link(p));
- free_avail (link(p)); free_avail (p);
- p := q;
- end else begin
- r := link (p); p := link (r);
- end;
-end;
-
-@ The |print_buffer| procedure prints one character from |buffer|[|i|].
-It also increases |i| to the next character in the buffer.
-
-@<Basic printing...@>=
-{ print one char from |buffer|[|i|]. |i| should have been of type
- 0..|buf_size|, but web2c doesn't like that construct in argument lists. }
-procedure print_buffer(var i:integer);
-var c: ASCII_code;
-begin
- if mubyte_in = 0 then print (buffer[i]) { normal TeX }
- else if mubyte_log > 0 then print_char (buffer[i])
- else begin
- c := read_buffer (i);
- if mubyte_token > 0 then print_cs (mubyte_token-cs_token_flag)
- else print (c);
- end;
- incr (i);
-end;
-
-@ Additional material to dump for enc\TeX. This includes whether
-enc\TeX is enabled, and if it is we also have to dump the \.{\\mubyte}
-arrays.
-
-@<Dump enc\TeX-specific data@>=
-dump_int(@"45435458); {enc\TeX's magic constant: "ECTX"}
-if not enctex_p then dump_int(0)
-else begin
- dump_int(1);
- dump_things(mubyte_read[0], 256);
- dump_things(mubyte_write[0], 256);
- dump_things(mubyte_cswrite[0], 128);
-end;
-
-@ Undumping the additional material we dumped for enc\TeX. This includes
-conditionally undumping the \.{\\mubyte} arrays.
-
-@<Undump enc\TeX-specific data@>=
-undump_int(x); {check magic constant of enc\TeX}
-if x<>@"45435458 then goto bad_fmt;
-undump_int(x); {undump |enctex_p| flag into |enctex_enabled_p|}
-if x=0 then enctex_enabled_p:=false
-else if x<>1 then goto bad_fmt
-else begin
- enctex_enabled_p:=true;
- undump_things(mubyte_read[0], 256);
- undump_things(mubyte_write[0], 256);
- undump_things(mubyte_cswrite[0], 128);
-end;
-
-
-@* \[54] System-dependent changes.
- at z
Deleted: trunk/Build/source/texk/web2c/enctex2.ch
===================================================================
--- trunk/Build/source/texk/web2c/enctex2.ch 2021-02-13 22:18:48 UTC (rev 57735)
+++ trunk/Build/source/texk/web2c/enctex2.ch 2021-02-13 23:02:37 UTC (rev 57736)
@@ -1,1111 +0,0 @@
-% enctex2.ch: implementation of enc\TeX, to be applied on top of tex.ch.
-% Used by pdfTeX. The original enctex.ch, which was used by TeX,
-% e-TeX, pdfTeX, but not by pTeX or XeTeX, was renamed as enctex2.ch
-% in order to be applied after tracingstacklevels.ch in the case
-% of pdfTeX. The original enctex.ch is used by TeX, and e-TeX.
-
- at x [2.20] l.579 - encTeX: global declarations
-xprn: array [ASCII_code] of ASCII_code;
- { non zero iff character is printable }
- at y
-xprn: array [ASCII_code] of ASCII_code;
- { non zero iff character is printable }
-mubyte_read: array [ASCII_code] of pointer;
- { non zero iff character begins the multi byte code }
-mubyte_write: array [ASCII_code] of str_number;
- { non zero iff character expands to multi bytes in log and write files }
-mubyte_cswrite: array [0..127] of pointer;
- { non null iff cs mod 128 expands to multi bytes in log and write files }
-mubyte_skip: integer; { the number of bytes to skip in |buffer| }
-mubyte_keep: integer; { the number of chars we need to keep unchanged }
-mubyte_skeep: integer; { saved |mubyte_keep| }
-mubyte_prefix: integer; { the type of mubyte prefix }
-mubyte_tablein: boolean; { the input side of table will be updated }
-mubyte_tableout: boolean; { the output side of table will be updated }
-mubyte_relax: boolean; { the relax prefix is used }
-mubyte_start: boolean; { we are making the token at the start of the line }
-mubyte_sstart: boolean; { saved |mubyte_start| }
-mubyte_token: pointer; { the token returned by |read_buffer| }
-mubyte_stoken: pointer; { saved first token in mubyte primitive }
-mubyte_sout: integer; { saved value of |mubyte_out| }
-mubyte_slog: integer; { saved value of |mubyte_log| }
-spec_sout: integer; { saved value of |spec_out| }
-no_convert: boolean; { conversion supressed by noconvert primitive }
-active_noconvert: boolean; { true if noconvert primitive is active }
-write_noexpanding: boolean; { true only if we need not write expansion }
-cs_converting: boolean; { true only if we need csname converting }
-special_printing: boolean; { true only if we need converting in special }
-message_printing: boolean; { true if message or errmessage prints to string }
- at z
-
- at x [2.23] l.723 - encTeX
-for i:=@'177 to @'377 do xchr[i]:=i;
- at y
-for i:=@'177 to @'377 do xchr[i]:=i;
-{Initialize enc\TeX\ data.}
-for i:=0 to 255 do mubyte_read[i]:=null;
-for i:=0 to 255 do mubyte_write[i]:=0;
-for i:=0 to 127 do mubyte_cswrite[i]:=null;
-mubyte_keep := 0; mubyte_start := false;
-write_noexpanding := false; cs_converting := false;
-special_printing := false; message_printing := false;
-no_convert := false; active_noconvert := false;
- at z
-
- at x [5.59] l.1508 FIXME -- enc\TeX\ modifications of |print|.
- 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;
- at y
- else begin if (selector>pseudo) and (not special_printing)
- and (not message_printing) 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; no_convert := false; return;
- end
- else if message_printing then
- begin print_char(s); no_convert := false; return;
- end;
- if (mubyte_log>0) and (not no_convert) and (mubyte_write[s]>0) then
- s := mubyte_write[s]
- else if xprn[s] or special_printing then
- begin print_char(s); no_convert := false; return; end;
- no_convert := false;
- at z
-
- at x [5.71] encTeX - native buffer printing
-if last<>first then for k:=first to last-1 do print(buffer[k]);
- at y
-k:=first; while k < last do begin print_buffer(k) end;
- at z
-
- at x [17.230] l.4725 - encTeX: xord_code_base, xchr_code_base, prn_code_base,
- at d math_font_base=cur_font_loc+1 {table of 48 math font numbers}
- at y
- at d xord_code_base=cur_font_loc+1
- at d xchr_code_base=xord_code_base+1
- at d xprn_code_base=xchr_code_base+1
- at d math_font_base=xprn_code_base+1
- at z
-
-% encTeX: \mubytein \mubyteout \mubytelog and \specialout
- at x [17.236] l.4954
- at d web2c_int_pars=web2c_int_base+4 {total number of web2c's integer parameters}
- at y
- at d mubyte_in_code=web2c_int_base+4{if positive then reading mubytes is active}
- at d mubyte_out_code=web2c_int_base+5{if positive then printing mubytes is active}
- at d mubyte_log_code=web2c_int_base+6{if positive then print mubytes to log and terminal}
- at d spec_out_code=web2c_int_base+7 {if positive then print specials by mubytes}
- at d web2c_int_pars=web2c_int_base+8 {total number of web2c's integer parameters}
- at z
-
-% encTeX: \mubytein \mubyteout \mubytelog and \specialout
- at x [17.236] l.5016
- at d tracing_char_sub_def==int_par(tracing_char_sub_def_code)
- at y
- at d tracing_char_sub_def==int_par(tracing_char_sub_def_code)
- at d mubyte_in==int_par(mubyte_in_code)
- at d mubyte_out==int_par(mubyte_out_code)
- at d mubyte_log==int_par(mubyte_log_code)
- at d spec_out==int_par(spec_out_code)
- at z
-
-% encTeX: \mubytein \mubyteout \mubytelog and \specialout
- at x [17.237] l.5080
-tracing_char_sub_def_code:print_esc("tracingcharsubdef");
- at y
-tracing_char_sub_def_code:print_esc("tracingcharsubdef");
-mubyte_in_code:print_esc("mubytein");
-mubyte_out_code:print_esc("mubyteout");
-mubyte_log_code:print_esc("mubytelog");
-spec_out_code:print_esc("specialout");
- at z
-
-% encTeX: \mubytein \mubyteout \mubytelog and \specialout
- at x [17.238] l.5200
-@!@:tracing_char_sub_def_}{\.{\\tracingcharsubdef} primitive@>
- end;
- at y
-@!@:tracing_char_sub_def_}{\.{\\tracingcharsubdef} primitive@>
- end;
-if enctex_p then
- begin enctex_enabled_p:=true;
- primitive("mubytein",assign_int,int_base+mubyte_in_code);@/
-@!@:mubyte_in_}{\.{\\mubytein} primitive@>
- primitive("mubyteout",assign_int,int_base+mubyte_out_code);@/
-@!@:mubyte_out_}{\.{\\mubyteout} primitive@>
- primitive("mubytelog",assign_int,int_base+mubyte_log_code);@/
-@!@:mubyte_log_}{\.{\\mubytelog} primitive@>
- primitive("specialout",assign_int,int_base+spec_out_code);@/
-@!@:spec_out_}{\.{\\specialout} primitive@>
-end;
- at z
-
- at x [18.262] - encTeX: control sequence to byte sequence
-they may be unprintable.
-
-@<Basic printing...@>=
-procedure print_cs(@!p:integer); {prints a purported control sequence}
-begin if p<hash_base then {single character}
- at y
-they may be unprintable.
-
-The conversion from control sequence to byte sequence for enc\TeX is
-implemented here. Of course, the simplest way is to implement an array
-of string pointers with |hash_size| length, but we assume that only a
-few control sequences will need to be converted. So |mubyte_cswrite|,
-an array with only 128 items, is used. The items point to the token
-lists. First token includes a csname number and the second points the
-string to be output. The third token includes the number of another
-csname and fourth token its pointer to the string etc. We need to do
-the sequential searching in one of the 128 token lists.
-
-@<Basic printing...@>=
-procedure print_cs(@!p:integer); {prints a purported control sequence}
-var q: pointer;
- s: str_number;
-begin
- if active_noconvert and (not no_convert) and
- (eq_type(p) = let) and (equiv(p) = normal+11) then { noconvert }
- begin
- no_convert := true;
- return;
- end;
- s := 0;
- if cs_converting and (not no_convert) then
- begin
- q := mubyte_cswrite [p mod 128] ;
- while q <> null do
- if info (q) = p then
- begin
- s := info (link(q)); q := null;
- end else q := link (link (q));
- end;
- no_convert := false;
- if s > 0 then print (s)
- else if p<hash_base then {single character}
- at z
-
- at x [18.262] - encTeX: exit label for print_cs
- print_char(" ");
- end;
-end;
- at y
- print_char(" ");
- end;
-exit: end;
- at z
-
- at x [18.265] - encTeX: \endmubyte primitive
-primitive("endcsname",end_cs_name,0);@/
-@!@:end_cs_name_}{\.{\\endcsname} primitive@>
- at y
-primitive("endcsname",end_cs_name,0);@/
-@!@:end_cs_name_}{\.{\\endcsname} primitive@>
-if enctex_p then
-begin
- primitive("endmubyte",end_cs_name,10);@/
-@!@:end_mubyte_}{\.{\\endmubyte} primitive@>
-end;
- at z
-
- at x [18.266] - encTeX: \endmubyte primitive
-end_cs_name: print_esc("endcsname");
- at y
-end_cs_name: if chr_code = 10 then print_esc("endmubyte")
- else print_esc("endcsname");
- at z
-
- at x [22.318] encTeX - native buffer printing
-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
-i := start; mubyte_skeep := mubyte_keep;
-mubyte_sstart := mubyte_start; mubyte_start := false;
-if j>0 then while i < j do
-begin
- if i=loc then set_trick_count;
- print_buffer(i);
-end;
-mubyte_keep := mubyte_skeep; mubyte_start := mubyte_sstart
- at z
-
- at x [24.332] encTeX: insert the added functions
-appear on that line. (There might not be any tokens at all, if the
-|end_line_char| has |ignore| as its catcode.)
- at y
-appear on that line. (There might not be any tokens at all, if the
-|end_line_char| has |ignore| as its catcode.)
-
-Some additional routines used by the enc\TeX extension have to be
-declared at this point.
-
- at p @t\4@>@<Declare additional routines for enc\TeX@>@/
- at z
-
- at x [24.341] - encTeX: more declarations in expand processor
-var k:0..buf_size; {an index into |buffer|}
-@!t:halfword; {a token}
- at y
-var k:0..buf_size; {an index into |buffer|}
-@!t:halfword; {a token}
-@!i,@!j: 0..buf_size; {more indexes for encTeX}
-@!mubyte_incs: boolean; {control sequence is converted by mubyte}
-@!p:pointer; {for encTeX test if noexpanding}
- at z
-
- at x [24.343] - encTeX: access the buffer via read_buffer
- begin cur_chr:=buffer[loc]; incr(loc);
- at y
- begin
- { Use |k| instead of |loc| for type correctness. }
- k := loc;
- cur_chr := read_buffer (k);
- loc := k; incr (loc);
- if (mubyte_token > 0) then
- begin
- state := mid_line;
- cur_cs := mubyte_token - cs_token_flag;
- goto found;
- end;
- at z
-
- at x [24.354] - encTeX: access the buffer via read_buffer
-else begin start_cs: k:=loc; cur_chr:=buffer[k]; cat:=cat_code(cur_chr);
- incr(k);
- at y
-else begin start_cs:
- mubyte_incs := false; k := loc; mubyte_skeep := mubyte_keep;
- cur_chr := read_buffer (k); cat := cat_code (cur_chr);
- if (mubyte_in>0) and (not mubyte_incs) and
- ((mubyte_skip>0) or (cur_chr<>buffer[k])) then mubyte_incs := true;
- incr (k);
- if mubyte_token > 0 then
- begin
- state := mid_line;
- cur_cs := mubyte_token - cs_token_flag;
- goto found;
- end;
- at z
-
- at x [24.354] - encTeX: noexpanding the marked control sequence
- 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;
- at y
- mubyte_keep := mubyte_skeep;
- cur_cs:=single_base + read_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;
-if write_noexpanding then
-begin
- p := mubyte_cswrite [cur_cs mod 128];
- while p <> null do
- if info (p) = cur_cs then
- begin
- cur_cmd := relax; cur_chr := 256; p := null;
- end else p := link (link (p));
-end;
- at z
-
- at x [24.355] - encTeX: deactivated when reading such \^^ab control sequences
- limit:=limit-d; first:=first-d;
- at y
- limit:=limit-d; first:=first-d;
- if mubyte_in>0 then mubyte_keep := k-loc;
- at z
-
- at x [24.356] - encTeX: access the buffer via read_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
-begin
- repeat cur_chr := read_buffer (k); cat := cat_code (cur_chr);
- if mubyte_token>0 then cat := escape;
- if (mubyte_in>0) and (not mubyte_incs) and (cat=letter) and
- ((mubyte_skip>0) or (cur_chr<>buffer[k])) then mubyte_incs := true;
- incr (k);
- until (cat <> letter) or (k > limit);
- @<If an expanded...@>;
- if cat <> letter then
- begin
- decr (k); k := k - mubyte_skip;
- end;
- if k > loc + 1 then { multiletter control sequence has been scanned }
- begin
- if mubyte_incs then { multibyte in csname occurrs }
- begin
- i := loc; j := first; mubyte_keep := mubyte_skeep;
- if j - loc + k > max_buf_stack then
- begin
- max_buf_stack := j - loc + k;
- if max_buf_stack >= buf_size then
- begin
- max_buf_stack := buf_size;
- overflow ("buffer size", buf_size);
- end;
- end;
- while i < k do
- begin
- buffer [j] := read_buffer (i);
- incr (i); incr (j);
- end;
- if j = first+1 then
- cur_cs := single_base + buffer [first]
- else
- cur_cs := id_lookup (first, j-first);
- end else cur_cs := id_lookup (loc, k-loc) ;
- loc := k;
- goto found;
- end;
-end
- at z
-
- at x [24.357] - encTeX: noexpanding the marked control sequence
- else check_outer_validity;
- at y
- else check_outer_validity;
- if write_noexpanding then
- begin
- p := mubyte_cswrite [cur_cs mod 128];
- while p <> null do
- if info (p) = cur_cs then
- begin
- cur_cmd := relax; cur_chr := 256; p := null;
- end else p := link (link (p));
- end;
- at z
-
- at x [24.363] encTeX - native buffer printing
- if start<limit then for k:=start to limit-1 do print(buffer[k]);
- at y
- k := start;
- while k < limit do begin print_buffer(k) end;
- at z
-
- at x [25.372] - encTeX: we need to distinguish \endcsname and \endmubyte
-if cur_cmd<>end_cs_name then @<Complain about missing \.{\\endcsname}@>;
- at y
-if (cur_cmd<>end_cs_name) or (cur_chr<>0) then @<Complain about missing \.{\\endcsname}@>;
- at z
-
- at x [26.414] l.8358 - encTeX: accessing xord/xchr/xprn
-if m=math_code_base then scanned_result(ho(math_code(cur_val)))(int_val)
- at y
-if m=xord_code_base then scanned_result(xord[cur_val])(int_val)
-else if m=xchr_code_base then scanned_result(xchr[cur_val])(int_val)
-else if m=xprn_code_base then scanned_result(xprn[cur_val])(int_val)
-else if m=math_code_base then scanned_result(ho(math_code(cur_val)))(int_val)
- at z
-
- at x [29.534] l.10293 - enc\TeX: add enc\TeX banner after loading fmt file
- begin wlog_cr; wlog('MLTeX v2.2 enabled');
- end;
- at y
- begin wlog_cr; wlog('MLTeX v2.2 enabled');
- end;
-if enctex_enabled_p then
- begin wlog_cr; wlog(encTeX_banner); wlog(', reencoding enabled');
- if translate_filename then
- begin wlog_cr;
- wlog(' (\xordcode, \xchrcode, \xprncode overridden by TCX)');
- end;
- end;
- at z
-
- at x [48.1138] l.21648 - encTeX: \endmubyte primitive
-begin print_err("Extra "); print_esc("endcsname");
- at .Extra \\endcsname@>
-help1("I'm ignoring this, since I wasn't doing a \csname.");
- at y
-begin
-if cur_chr = 10 then
-begin
- print_err("Extra "); print_esc("endmubyte");
- at .Extra \\endmubyte@>
- help1("I'm ignoring this, since I wasn't doing a \mubyte.");
-end else begin
- print_err("Extra "); print_esc("endcsname");
- at .Extra \\endcsname@>
- help1("I'm ignoring this, since I wasn't doing a \csname.");
-end;
- at z
-
- at x [49.1211] - encTeX: extra variables for \mubyte primitive
-@!p,@!q:pointer; {for temporary short-term use}
- at y
-@!p,@!q,@!r:pointer; {for temporary short-term use}
- at z
-
- at x [49.1219] - encTeX: \mubyte and \noconvert primitives
-primitive("futurelet",let,normal+1);@/
-@!@:future_let_}{\.{\\futurelet} primitive@>
- at y
-primitive("futurelet",let,normal+1);@/
-@!@:future_let_}{\.{\\futurelet} primitive@>
-if enctex_p then
-begin
- primitive("mubyte",let,normal+10);@/
-@!@:mubyte_}{\.{\\mubyte} primitive@>
- primitive("noconvert",let,normal+11);@/
-@!@:noconvert_}{\.{\\noconvert} primitive@>
-end;
- at z
-
- at x [49.1220] - encTeX: \mubyte primitive
-let: if chr_code<>normal then print_esc("futurelet")@+else print_esc("let");
- at y
-let: if chr_code<>normal then
- if chr_code = normal+10 then print_esc("mubyte")
- else if chr_code = normal+11 then print_esc("noconvert")
- else print_esc("futurelet")
- else print_esc("let");
- at z
-
- at x [49.1221] - encTeX: \mubyte primitive
-let: begin n:=cur_chr;
- at y
-let: if cur_chr = normal+11 then do_nothing { noconvert primitive }
- else if cur_chr = normal+10 then { mubyte primitive }
- begin
- selector:=term_and_log;
- get_token;
- mubyte_stoken := cur_tok;
- if cur_tok <= cs_token_flag then mubyte_stoken := cur_tok mod 256;
- mubyte_prefix := 60; mubyte_relax := false;
- mubyte_tablein := true; mubyte_tableout := true;
- get_x_token;
- if cur_cmd = spacer then get_x_token;
- if cur_cmd = sub_mark then
- begin
- mubyte_tableout := false; get_x_token;
- if cur_cmd = sub_mark then
- begin
- mubyte_tableout := true; mubyte_tablein := false;
- get_x_token;
- end;
- end else if (mubyte_stoken > cs_token_flag) and
- (cur_cmd = mac_param) then
- begin
- mubyte_tableout := false;
- scan_int; mubyte_prefix := cur_val; get_x_token;
- if mubyte_prefix > 50 then mubyte_prefix := 52;
- if mubyte_prefix <= 0 then mubyte_prefix := 51;
- end
- else if (mubyte_stoken > cs_token_flag) and (cur_cmd = relax) then
- begin
- mubyte_tableout := true; mubyte_tablein := false;
- mubyte_relax := true; get_x_token;
- end;
- r := get_avail; p := r;
- while cur_cs = 0 do begin store_new_token (cur_tok); get_x_token; end;
- if (cur_cmd <> end_cs_name) or (cur_chr <> 10) then
- begin
- print_err("Missing "); print_esc("endmubyte"); print(" inserted");
- help2("The control sequence marked <to be read again> should")@/
-("not appear in <byte sequence> between \mubyte and \endmubyte.");
- back_error;
- end;
- p := link(r);
- if (p = null) and mubyte_tablein then
- begin
- print_err("The empty <byte sequence>, ");
- print_esc("mubyte"); print(" ignored");
- help2("The <byte sequence> in")@/
-("\mubyte <token> <byte sequence>\endmubyte should not be empty.");
- error;
- end else begin
- while p <> null do
- begin
- append_char (info(p) mod 256);
- p := link (p);
- end;
- flush_list (r);
- if (str_start [str_ptr] + 1 = pool_ptr) and
- (str_pool [pool_ptr-1] = mubyte_stoken) then
- begin
- if mubyte_read [mubyte_stoken] <> null
- and mubyte_tablein then { clearing data }
- dispose_munode (mubyte_read [mubyte_stoken]);
- if mubyte_tablein then mubyte_read [mubyte_stoken] := null;
- if mubyte_tableout then mubyte_write [mubyte_stoken] := 0;
- pool_ptr := str_start [str_ptr];
- end else begin
- if mubyte_tablein then mubyte_update; { updating input side }
- if mubyte_tableout then { updating output side }
- begin
- if mubyte_stoken > cs_token_flag then { control sequence }
- begin
- dispose_mutableout (mubyte_stoken-cs_token_flag);
- if (str_start [str_ptr] < pool_ptr) or mubyte_relax then
- begin { store data }
- r := mubyte_cswrite[(mubyte_stoken-cs_token_flag) mod 128];
- p := get_avail;
- mubyte_cswrite[(mubyte_stoken-cs_token_flag) mod 128] := p;
- info (p) := mubyte_stoken-cs_token_flag;
- link (p) := get_avail;
- p := link (p);
- if mubyte_relax then begin
- info (p) := 0; pool_ptr := str_start [str_ptr];
- end else info (p) := slow_make_string;
- link (p) := r;
- end;
- end else begin { single character }
- if str_start [str_ptr] = pool_ptr then
- mubyte_write [mubyte_stoken] := 0
- else
- mubyte_write [mubyte_stoken] := slow_make_string;
- end;
- end else pool_ptr := str_start [str_ptr];
- end;
- end;
- end else begin { let primitive }
- n:=cur_chr;
- at z
-
- at x [49.1230] l.22936 - encTeX: \xordcode, \xchrcode, \xprncode primitives
-primitive("catcode",def_code,cat_code_base);
-@!@:cat_code_}{\.{\\catcode} primitive@>
- at y
-primitive("catcode",def_code,cat_code_base);
-@!@:cat_code_}{\.{\\catcode} primitive@>
-if enctex_p then
-begin
- primitive("xordcode",def_code,xord_code_base);
-@!@:xord_code_}{\.{\\xordcode} primitive@>
- primitive("xchrcode",def_code,xchr_code_base);
-@!@:xchr_code_}{\.{\\xchrcode} primitive@>
- primitive("xprncode",def_code,xprn_code_base);
-@!@:xprn_code_}{\.{\\xprncode} primitive@>
-end;
- at z
-
- at x [49.1231] l.22956 - encTeX: \xordcode, \xchrcode, \xprncode primitives
-def_code: if chr_code=cat_code_base then print_esc("catcode")
- at y
-def_code: if chr_code=xord_code_base then print_esc("xordcode")
- else if chr_code=xchr_code_base then print_esc("xchrcode")
- else if chr_code=xprn_code_base then print_esc("xprncode")
- else if chr_code=cat_code_base then print_esc("catcode")
- at z
-
- at x [49.1232] l.22969 - encTeX: setting a new value to xchr/xord/xprn
- p:=cur_chr; scan_char_num; p:=p+cur_val; scan_optional_equals;
- scan_int;
- at y
- p:=cur_chr; scan_char_num;
- if p=xord_code_base then p:=cur_val
- else if p=xchr_code_base then p:=cur_val+256
- else if p=xprn_code_base then p:=cur_val+512
- else p:=p+cur_val;
- scan_optional_equals;
- scan_int;
- at z
-
- at x [49.1232] l.22980 - encTeX: setting a new value to xchr/xord/xprn
- if p<math_code_base then define(p,data,cur_val)
- at y
- if p<256 then xord[p]:=cur_val
- else if p<512 then xchr[p-256]:=cur_val
- else if p<768 then xprn[p-512]:=cur_val
- else if p<math_code_base then define(p,data,cur_val)
- at z
-
- at x [49.1279] - encTeX: implement \noconvert
-old_setting:=selector; selector:=new_string;
-token_show(def_ref); selector:=old_setting;
- at y
-old_setting:=selector; selector:=new_string;
-message_printing := true; active_noconvert := true;
-token_show(def_ref);
-message_printing := false; active_noconvert := false;
-selector:=old_setting;
- at z
-
-% encTeX: |slow_print| is too eager to expand printed strings. To
-% selectively suppress or enable expansion (needed to \noconvert)
-% |print| will look at |message_printing|. So we bypass |slow_print|
-% and go directly to |print| instead.
- at x [49.1279] - encTeX: to handle \noconvert in messages go directly to |print|
-slow_print(s); update_terminal;
- at y
-print(s); update_terminal;
- at z
-
- at x [49.1279] - encTeX: to handle \noconvert in messages go directly to |print|
-begin print_err(""); slow_print(s);
- at y
-begin print_err(""); print(s);
- at z
-
-% encTeX: dump encTeX-specific data to fmt file.
- at x [50.1302] l.23694
-@<Dump ML\TeX-specific data@>;
- at y
-@<Dump ML\TeX-specific data@>;
-@<Dump enc\TeX-specific data@>;
- at z
-
-% encTeX: undump encTeX-specific data from fmt file.
- at x [50.1303] l.23694
-@<Undump ML\TeX-specific data@>;
- at y
-@<Undump ML\TeX-specific data@>;
-@<Undump enc\TeX-specific data@>;
- at z
-
- at x [51.1337] l.24371 - enc\TeX: add. enc\TeX banner after loading fmt file
- begin wterm_ln('MLTeX v2.2 enabled');
- end;
- at y
- begin wterm_ln('MLTeX v2.2 enabled');
- end;
-if enctex_enabled_p then
- begin wterm(encTeX_banner); wterm_ln(', reencoding enabled.');
- if translate_filename then begin
- wterm_ln(' (\xordcode, \xchrcode, \xprncode overridden by TCX)');
- end;
- end;
- at z
-
- at x [53.1341] - encTeX: keep track of mubyte value for \write
- at d write_stream(#) == info(#+1) {stream number (0 to 17)}
- at y
- at d write_stream(#) == type(#+1) {stream number (0 to 17)}
- at d mubyte_zero == 64
- at d write_mubyte(#) == subtype(#+1) {mubyte value + |mubyte_zero|}
- at z
-
- at x [53.1350] - encTeX: \write stores mubyte_out value
-write_stream(tail):=cur_val;
- at y
-write_stream(tail):=cur_val;
-if mubyte_out + mubyte_zero < 0 then write_mubyte(tail) := 0
-else if mubyte_out + mubyte_zero >= 2*mubyte_zero then
- write_mubyte(tail) := 2*mubyte_zero - 1
- else write_mubyte(tail) := mubyte_out + mubyte_zero;
- at z
-
- at x [53.1353] - encTeX: \special stores specialout and mubyteout values
-begin new_whatsit(special_node,write_node_size); write_stream(tail):=null;
-p:=scan_toks(false,true); write_tokens(tail):=def_ref;
- at y
-begin new_whatsit(special_node,write_node_size);
-if spec_out + mubyte_zero < 0 then write_stream(tail) := 0
-else if spec_out + mubyte_zero >= 2*mubyte_zero then
- write_stream(tail) := 2*mubyte_zero - 1
- else write_stream(tail) := spec_out + mubyte_zero;
-if mubyte_out + mubyte_zero < 0 then write_mubyte(tail) := 0
-else if mubyte_out + mubyte_zero >= 2*mubyte_zero then
- write_mubyte(tail) := 2*mubyte_zero - 1
- else write_mubyte(tail) := mubyte_out + mubyte_zero;
-if (spec_out = 2) or (spec_out = 3) then
- if (mubyte_out > 2) or (mubyte_out = -1) or (mubyte_out = -2) then
- write_noexpanding := true;
-p:=scan_toks(false,true); write_tokens(tail):=def_ref;
-write_noexpanding := false;
- at z
-
- at x [53.1355] - encTeX: \write prints \mubyteout value
-else print_char("-");
- at y
-else print_char("-");
-if (s = "write") and (write_mubyte (p) <> mubyte_zero) then
-begin
- print_char ("<"); print_int (write_mubyte(p)-mubyte_zero); print_char (">");
-end;
- at z
-
- at x [53.1356] - encTeX: \special prints \specialout and \mubyteout values
-special_node:begin print_esc("special");
- at y
-special_node:begin print_esc("special");
-if write_stream(p) <> mubyte_zero then
-begin
- print_char ("<"); print_int (write_stream(p)-mubyte_zero);
- if (write_stream(p)-mubyte_zero = 2) or
- (write_stream(p)-mubyte_zero = 3) then
- begin
- print_char (":"); print_int (write_mubyte(p)-mubyte_zero);
- end;
- print_char (">");
-end;
- at z
-
- at x [53.1368] - encTeX: conversions in \special
-old_setting:=selector; selector:=new_string;
- at y
-old_setting:=selector; selector:=new_string;
-spec_sout := spec_out; spec_out := write_stream(p) - mubyte_zero;
-mubyte_sout := mubyte_out; mubyte_out := write_mubyte(p) - mubyte_zero;
-active_noconvert := true;
-mubyte_slog := mubyte_log;
-mubyte_log := 0;
-if (mubyte_out > 0) or (mubyte_out = -1) then mubyte_log := 1;
-if (spec_out = 2) or (spec_out = 3) then
-begin
- if (mubyte_out > 0) or (mubyte_out = -1) then
- begin
- special_printing := true; mubyte_log := 1;
- end;
- if mubyte_out > 1 then cs_converting := true;
-end;
- at z
-
- at x [53.1368] - encTeX: conversions in \special
-for k:=str_start[str_ptr] to pool_ptr-1 do dvi_out(so(str_pool[k]));
- at y
-if (spec_out = 1) or (spec_out = 3) then
- for k:=str_start[str_ptr] to pool_ptr-1 do
- str_pool[k] := si(xchr[so(str_pool[k])]);
-for k:=str_start[str_ptr] to pool_ptr-1 do dvi_out(so(str_pool[k]));
-spec_out := spec_sout; mubyte_out := mubyte_sout; mubyte_log := mubyte_slog;
-special_printing := false; cs_converting := false;
-active_noconvert := false;
- at z
-
- at x [53.1370] l.24770 - encTeX
-begin @<Expand macros in the token list
- at y
-begin
-mubyte_sout := mubyte_out; mubyte_out := write_mubyte(p) - mubyte_zero;
-if (mubyte_out > 2) or (mubyte_out = -1) or (mubyte_out = -2) then
- write_noexpanding := true;
-@<Expand macros in the token list
- at z
-
- at x [53.1370] - encTeX: conversion in parameter of \write
-token_show(def_ref); print_ln;
- at y
-active_noconvert := true;
-if mubyte_out > 1 then cs_converting := true;
-mubyte_slog := mubyte_log;
-if (mubyte_out > 0) or (mubyte_out = -1) then mubyte_log := 1
-else mubyte_log := 0;
-token_show(def_ref); print_ln;
-cs_converting := false; write_noexpanding := false;
-active_noconvert := false;
-mubyte_out := mubyte_sout; mubyte_log := mubyte_slog;
- at z
-
- at x[54.1376] l.24903 - enc\TeX
-@* \[54] System-dependent changes.
- at y
-@* \[54/enc\TeX] System-dependent changes for enc\TeX.
-
- at d encTeX_banner == ' encTeX v. Jun. 2004'
-
-@ The boolean variable |enctex_p| is set by web2c according to the given
-command line option (or an entry in the configuration file) before any
-\TeX{} function is called.
-
-@<Global...@> =
-@!enctex_p: boolean;
-
-
-@ The boolean variable |enctex_enabled_p| is used to enable enc\TeX's
-primitives. It is initialised to |false|. When loading a \.{FMT} it
-is set to the value of the boolean |enctex_p| saved in the \.{FMT} file.
-Additionally it is set to the value of |enctex_p| in Ini\TeX.
-
-@<Glob...@>=
-@!enctex_enabled_p:boolean; {enable encTeX}
-
-
-@ @<Set init...@>=
-enctex_enabled_p:=false;
-
-
-@ Auxiliary functions/procedures for enc\TeX{} (by Petr Olsak) follow.
-These functions implement the \.{\\mubyte} code to convert
-the multibytes in |buffer| to one byte or to one control
-sequence. These functions manipulate a mubyte tree: each node of
-this tree is token list with n+1 tokens (first token consist the byte
-from the byte sequence itself and the other tokens point to the
-branches). If you travel from root of the tree to a leaf then you
-find exactly one byte sequence which we have to convert to one byte or
-control sequence. There are two variants of the leaf: the ``definitive
-end'' or the ``middle leaf'' if a longer byte sequence exists and the mubyte
-tree continues under this leaf. First variant is implemented as one
-memory word where the link part includes the token to
-which we have to convert and type part includes the number 60 (normal
-conversion) or 1..52 (insert the control sequence).
-The second variant of ``middle leaf'' is implemented as two memory words:
-first one has a type advanced by 64 and link points to the second
-word where info part includes the token to which we have to convert
-and link points to the next token list with the branches of
-the subtree.
-
-The inverse: one byte to multi byte (for log printing and \.{\\write}
-printing) is implemented via a pool. Each multibyte sequence is stored
-in a pool as a string and |mubyte_write|[{\it printed char\/}] points
-to this string.
-
- at d new_mubyte_node ==
- link (p) := get_avail; p := link (p); info (p) := get_avail; p := info (p)
- at d subinfo (#) == subtype (#)
-
-@<Basic printing...@>=
-{ read |buffer|[|i|] and convert multibyte. |i| should have been
- of type 0..|buf_size|, but web2c doesn't like that construct in
- argument lists. }
-function read_buffer(var i:integer):ASCII_code;
-var p: pointer;
- last_found: integer;
- last_type: integer;
-begin
- mubyte_skip := 0; mubyte_token := 0;
- read_buffer := buffer[i];
- if mubyte_in = 0 then
- begin
- if mubyte_keep > 0 then mubyte_keep := 0;
- return ;
- end;
- last_found := -2;
- if (i = start) and (not mubyte_start) then
- begin
- mubyte_keep := 0;
- if (end_line_char >= 0) and (end_line_char < 256) then
- if mubyte_read [end_line_char] <> null then
- begin
- mubyte_start := true; mubyte_skip := -1;
- p := mubyte_read [end_line_char];
- goto continue;
- end;
- end;
-restart:
- mubyte_start := false;
- if (mubyte_read [buffer[i]] = null) or (mubyte_keep > 0) then
- begin
- if mubyte_keep > 0 then decr (mubyte_keep);
- return ;
- end;
- p := mubyte_read [buffer[i]];
-continue:
- if type (p) >= 64 then
- begin
- last_type := type (p) - 64;
- p := link (p);
- mubyte_token := info (p); last_found := mubyte_skip;
- end else if type (p) > 0 then
- begin
- last_type := type (p);
- mubyte_token := link (p);
- goto found;
- end;
- incr (mubyte_skip);
- if i + mubyte_skip > limit then
- begin
- mubyte_skip := 0;
- if mubyte_start then goto restart;
- return;
- end;
- repeat
- p := link (p);
- if subinfo (info(p)) = buffer [i+mubyte_skip] then
- begin
- p := info (p); goto continue;
- end;
- until link (p) = null;
- mubyte_skip := 0;
- if mubyte_start then goto restart;
- if last_found = -2 then return; { no found }
- mubyte_skip := last_found;
-found:
- if mubyte_token < 256 then { multibyte to one byte }
- begin
- read_buffer := mubyte_token; mubyte_token := 0;
- i := i + mubyte_skip;
- if mubyte_start and (i >= start) then mubyte_start := false;
- return;
- end else begin { multibyte to control sequence }
- read_buffer := 0;
- if last_type = 60 then { normal conversion }
- i := i + mubyte_skip
- else begin { insert control sequence }
- decr (i); mubyte_keep := last_type;
- if i < start then mubyte_start := true;
- if last_type = 52 then mubyte_keep := 10000;
- if last_type = 51 then mubyte_keep := mubyte_skip + 1;
- mubyte_skip := -1;
- end;
- if mubyte_start and (i >= start) then mubyte_start := false;
- return;
- end;
-exit: end;
-
-@ @<Declare additional routines for enc\TeX@>=
-procedure mubyte_update; { saves new string to mubyte tree }
-var j: pool_pointer;
- p: pointer;
- q: pointer;
- in_mutree: integer;
-begin
- j := str_start [str_ptr];
- if mubyte_read [so(str_pool[j])] = null then
- begin
- in_mutree := 0;
- p := get_avail;
- mubyte_read [so(str_pool[j])] := p;
- subinfo (p) := so(str_pool[j]); type (p) := 0;
- end else begin
- in_mutree := 1;
- p := mubyte_read [so(str_pool[j])];
- end;
- incr (j);
- while j < pool_ptr do
- begin
- if in_mutree = 0 then
- begin
- new_mubyte_node; subinfo (p) := so(str_pool[j]); type (p) := 0;
- end else { |in_mutree| = 1 }
- if (type (p) > 0) and (type (p) < 64) then
- begin
- type (p) := type (p) + 64;
- q := link (p); link (p) := get_avail; p := link (p);
- info (p) := q;
- new_mubyte_node; subinfo (p) := so(str_pool[j]); type (p) := 0;
- in_mutree := 0;
- end else begin
- if type (p) >= 64 then p := link (p);
- repeat
- p := link (p);
- if subinfo (info(p)) = so(str_pool[j]) then
- begin
- p := info (p);
- goto continue;
- end;
- until link (p) = null;
- new_mubyte_node; subinfo (p) := so(str_pool[j]); type (p) := 0;
- in_mutree := 0;
- end;
-continue:
- incr (j);
- end;
- if in_mutree = 1 then
- begin
- if type (p) = 0 then
- begin
- type (p) := mubyte_prefix + 64;
- q := link (p); link (p) := get_avail; p := link (p);
- link (p) := q; info (p) := mubyte_stoken;
- return;
- end;
- if type (p) >= 64 then
- begin
- type (p) := mubyte_prefix + 64;
- p := link (p); info (p) := mubyte_stoken;
- return;
- end;
- end;
- type (p) := mubyte_prefix;
- link (p) := mubyte_stoken;
-exit: end;
-@#
-procedure dispose_munode (p: pointer); { frees a mu subtree recursivelly }
-var q: pointer;
-begin
- if (type (p) > 0) and (type (p) < 64) then free_avail (p)
- else begin
- if type (p) >= 64 then
- begin
- q := link (p); free_avail (p); p := q;
- end;
- q := link (p); free_avail (p); p := q;
- while p <> null do
- begin
- dispose_munode (info (p));
- q := link (p);
- free_avail (p);
- p := q;
- end;
- end;
-end;
-@#
-procedure dispose_mutableout (cs: pointer); { frees record from out table }
-var p, q, r: pointer;
-begin
- p := mubyte_cswrite [cs mod 128];
- r := null;
- while p <> null do
- if info (p) = cs then
- begin
- if r <> null then link (r) := link (link (p))
- else mubyte_cswrite[cs mod 128] := link (link (p));
- q := link (link(p));
- free_avail (link(p)); free_avail (p);
- p := q;
- end else begin
- r := link (p); p := link (r);
- end;
-end;
-
-@ The |print_buffer| procedure prints one character from |buffer|[|i|].
-It also increases |i| to the next character in the buffer.
-
-@<Basic printing...@>=
-{ print one char from |buffer|[|i|]. |i| should have been of type
- 0..|buf_size|, but web2c doesn't like that construct in argument lists. }
-procedure print_buffer(var i:integer);
-var c: ASCII_code;
-begin
- if mubyte_in = 0 then print (buffer[i]) { normal TeX }
- else if mubyte_log > 0 then print_char (buffer[i])
- else begin
- c := read_buffer (i);
- if mubyte_token > 0 then print_cs (mubyte_token-cs_token_flag)
- else print (c);
- end;
- incr (i);
-end;
-
-@ Additional material to dump for enc\TeX. This includes whether
-enc\TeX is enabled, and if it is we also have to dump the \.{\\mubyte}
-arrays.
-
-@<Dump enc\TeX-specific data@>=
-dump_int(@"45435458); {enc\TeX's magic constant: "ECTX"}
-if not enctex_p then dump_int(0)
-else begin
- dump_int(1);
- dump_things(mubyte_read[0], 256);
- dump_things(mubyte_write[0], 256);
- dump_things(mubyte_cswrite[0], 128);
-end;
-
-@ Undumping the additional material we dumped for enc\TeX. This includes
-conditionally undumping the \.{\\mubyte} arrays.
-
-@<Undump enc\TeX-specific data@>=
-undump_int(x); {check magic constant of enc\TeX}
-if x<>@"45435458 then goto bad_fmt;
-undump_int(x); {undump |enctex_p| flag into |enctex_enabled_p|}
-if x=0 then enctex_enabled_p:=false
-else if x<>1 then goto bad_fmt
-else begin
- enctex_enabled_p:=true;
- undump_things(mubyte_read[0], 256);
- undump_things(mubyte_write[0], 256);
- undump_things(mubyte_cswrite[0], 128);
-end;
-
-
-@* \[54] System-dependent changes.
- at z
Added: trunk/Build/source/texk/web2c/enctexdir/enctex-pdftex.ch
===================================================================
--- trunk/Build/source/texk/web2c/enctexdir/enctex-pdftex.ch (rev 0)
+++ trunk/Build/source/texk/web2c/enctexdir/enctex-pdftex.ch 2021-02-13 23:02:37 UTC (rev 57736)
@@ -0,0 +1,16 @@
+% $Id$
+% enctex1.ch is applied first.
+% Then this change is applied for pdfTeX et al.,
+% assuming that tracingstacklevels.ch has been included,
+% as specified in the *.am files.
+
+% encTeX: \mubytein \mubyteout \mubytelog and \specialout
+ at x [17.236] l.4954
+ at d web2c_int_pars=web2c_int_base+4 {total number of web2c's integer parameters}
+ at y
+ at d mubyte_in_code=web2c_int_base+4{if positive then reading mubytes is active}
+ at d mubyte_out_code=web2c_int_base+5{if positive then printing mubytes is active}
+ at d mubyte_log_code=web2c_int_base+6{if positive then print mubytes to log and terminal}
+ at d spec_out_code=web2c_int_base+7 {if positive then print specials by mubytes}
+ at d web2c_int_pars=web2c_int_base+8 {total number of web2c's integer parameters}
+ at z
Property changes on: trunk/Build/source/texk/web2c/enctexdir/enctex-pdftex.ch
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+Date Author Id Revision
\ No newline at end of property
Added: trunk/Build/source/texk/web2c/enctexdir/enctex-tex.ch
===================================================================
--- trunk/Build/source/texk/web2c/enctexdir/enctex-tex.ch (rev 0)
+++ trunk/Build/source/texk/web2c/enctexdir/enctex-tex.ch 2021-02-13 23:02:37 UTC (rev 57736)
@@ -0,0 +1,17 @@
+% $Id$
+% enctex1.ch is applied first.
+% Then this change is applied for original TeX and eTeX,
+% since they do not include tracingstacklevels.ch,
+% as specified in the *.am files.
+
+% encTeX: \mubytein \mubyteout \mubytelog and \specialout
+ at x [17.236] l.4954
+ at d web2c_int_pars=web2c_int_base+3 {total number of web2c's integer parameters}
+ at y
+ at d mubyte_in_code=web2c_int_base+3 {if positive then reading mubytes is active}
+ at d mubyte_out_code=web2c_int_base+4 {if positive then printing mubytes is active}
+ at d mubyte_log_code=web2c_int_base+5 {if positive then print mubytes to log and terminal}
+ at d spec_out_code=web2c_int_base+6 {if positive then print specials by mubytes}
+ at d web2c_int_pars=web2c_int_base+7 {total number of web2c's integer parameters}
+ at z
+
Property changes on: trunk/Build/source/texk/web2c/enctexdir/enctex-tex.ch
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+Date Author Id Revision
\ No newline at end of property
Added: trunk/Build/source/texk/web2c/enctexdir/enctex1.ch
===================================================================
--- trunk/Build/source/texk/web2c/enctexdir/enctex1.ch (rev 0)
+++ trunk/Build/source/texk/web2c/enctexdir/enctex1.ch 2021-02-13 23:02:37 UTC (rev 57736)
@@ -0,0 +1,94 @@
+% $Id$
+% enctex1.ch: implementation of enc\TeX, to be applied on top of tex.ch.
+% This is the first set of changes, used by all engines supporting encTeX
+% (i.e., everything but XeTeX and LuaTeX).
+
+ at x [2.20] l.579 - encTeX: global declarations
+xprn: array [ASCII_code] of ASCII_code;
+ { non zero iff character is printable }
+ at y
+xprn: array [ASCII_code] of ASCII_code;
+ { non zero iff character is printable }
+mubyte_read: array [ASCII_code] of pointer;
+ { non zero iff character begins the multi byte code }
+mubyte_write: array [ASCII_code] of str_number;
+ { non zero iff character expands to multi bytes in log and write files }
+mubyte_cswrite: array [0..127] of pointer;
+ { non null iff cs mod 128 expands to multi bytes in log and write files }
+mubyte_skip: integer; { the number of bytes to skip in |buffer| }
+mubyte_keep: integer; { the number of chars we need to keep unchanged }
+mubyte_skeep: integer; { saved |mubyte_keep| }
+mubyte_prefix: integer; { the type of mubyte prefix }
+mubyte_tablein: boolean; { the input side of table will be updated }
+mubyte_tableout: boolean; { the output side of table will be updated }
+mubyte_relax: boolean; { the relax prefix is used }
+mubyte_start: boolean; { we are making the token at the start of the line }
+mubyte_sstart: boolean; { saved |mubyte_start| }
+mubyte_token: pointer; { the token returned by |read_buffer| }
+mubyte_stoken: pointer; { saved first token in mubyte primitive }
+mubyte_sout: integer; { saved value of |mubyte_out| }
+mubyte_slog: integer; { saved value of |mubyte_log| }
+spec_sout: integer; { saved value of |spec_out| }
+no_convert: boolean; { conversion supressed by noconvert primitive }
+active_noconvert: boolean; { true if noconvert primitive is active }
+write_noexpanding: boolean; { true only if we need not write expansion }
+cs_converting: boolean; { true only if we need csname converting }
+special_printing: boolean; { true only if we need converting in special }
+message_printing: boolean; { true if message or errmessage prints to string }
+ at z
+
+ at x [2.23] l.723 - encTeX
+for i:=@'177 to @'377 do xchr[i]:=i;
+ at y
+for i:=@'177 to @'377 do xchr[i]:=i;
+{Initialize enc\TeX\ data.}
+for i:=0 to 255 do mubyte_read[i]:=null;
+for i:=0 to 255 do mubyte_write[i]:=0;
+for i:=0 to 127 do mubyte_cswrite[i]:=null;
+mubyte_keep := 0; mubyte_start := false;
+write_noexpanding := false; cs_converting := false;
+special_printing := false; message_printing := false;
+no_convert := false; active_noconvert := false;
+ at z
+
+ at x [5.59] l.1508 FIXME -- enc\TeX\ modifications of |print|.
+ 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;
+ at y
+ else begin if (selector>pseudo) and (not special_printing)
+ and (not message_printing) 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; no_convert := false; return;
+ end
+ else if message_printing then
+ begin print_char(s); no_convert := false; return;
+ end;
+ if (mubyte_log>0) and (not no_convert) and (mubyte_write[s]>0) then
+ s := mubyte_write[s]
+ else if xprn[s] or special_printing then
+ begin print_char(s); no_convert := false; return; end;
+ no_convert := false;
+ at z
+
+ at x [5.71] encTeX - native buffer printing
+if last<>first then for k:=first to last-1 do print(buffer[k]);
+ at y
+k:=first; while k < last do begin print_buffer(k) end;
+ at z
+
+ at x [17.230] l.4725 - encTeX: xord_code_base, xchr_code_base, prn_code_base,
+ at d math_font_base=cur_font_loc+1 {table of 48 math font numbers}
+ at y
+ at d xord_code_base=cur_font_loc+1
+ at d xchr_code_base=xord_code_base+1
+ at d xprn_code_base=xchr_code_base+1
+ at d math_font_base=xprn_code_base+1
+ at z
Property changes on: trunk/Build/source/texk/web2c/enctexdir/enctex1.ch
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+Date Author Id Revision
\ No newline at end of property
Added: trunk/Build/source/texk/web2c/enctexdir/enctex2.ch
===================================================================
--- trunk/Build/source/texk/web2c/enctexdir/enctex2.ch (rev 0)
+++ trunk/Build/source/texk/web2c/enctexdir/enctex2.ch 2021-02-13 23:02:37 UTC (rev 57736)
@@ -0,0 +1,1008 @@
+% $Id$
+% enctex2.ch: bulk of the encTeX implementation, common to all engines
+% supporting encTeX.
+
+% encTeX: \mubytein \mubyteout \mubytelog and \specialout
+ at x [17.236] l.5016
+ at d tracing_char_sub_def==int_par(tracing_char_sub_def_code)
+ at y
+ at d tracing_char_sub_def==int_par(tracing_char_sub_def_code)
+ at d mubyte_in==int_par(mubyte_in_code)
+ at d mubyte_out==int_par(mubyte_out_code)
+ at d mubyte_log==int_par(mubyte_log_code)
+ at d spec_out==int_par(spec_out_code)
+ at z
+
+% encTeX: \mubytein \mubyteout \mubytelog and \specialout
+ at x [17.237] l.5080
+tracing_char_sub_def_code:print_esc("tracingcharsubdef");
+ at y
+tracing_char_sub_def_code:print_esc("tracingcharsubdef");
+mubyte_in_code:print_esc("mubytein");
+mubyte_out_code:print_esc("mubyteout");
+mubyte_log_code:print_esc("mubytelog");
+spec_out_code:print_esc("specialout");
+ at z
+
+% encTeX: \mubytein \mubyteout \mubytelog and \specialout
+ at x [17.238] l.5200
+@!@:tracing_char_sub_def_}{\.{\\tracingcharsubdef} primitive@>
+ end;
+ at y
+@!@:tracing_char_sub_def_}{\.{\\tracingcharsubdef} primitive@>
+ end;
+if enctex_p then
+ begin enctex_enabled_p:=true;
+ primitive("mubytein",assign_int,int_base+mubyte_in_code);@/
+@!@:mubyte_in_}{\.{\\mubytein} primitive@>
+ primitive("mubyteout",assign_int,int_base+mubyte_out_code);@/
+@!@:mubyte_out_}{\.{\\mubyteout} primitive@>
+ primitive("mubytelog",assign_int,int_base+mubyte_log_code);@/
+@!@:mubyte_log_}{\.{\\mubytelog} primitive@>
+ primitive("specialout",assign_int,int_base+spec_out_code);@/
+@!@:spec_out_}{\.{\\specialout} primitive@>
+end;
+ at z
+
+ at x [18.262] - encTeX: control sequence to byte sequence
+they may be unprintable.
+
+@<Basic printing...@>=
+procedure print_cs(@!p:integer); {prints a purported control sequence}
+begin if p<hash_base then {single character}
+ at y
+they may be unprintable.
+
+The conversion from control sequence to byte sequence for enc\TeX is
+implemented here. Of course, the simplest way is to implement an array
+of string pointers with |hash_size| length, but we assume that only a
+few control sequences will need to be converted. So |mubyte_cswrite|,
+an array with only 128 items, is used. The items point to the token
+lists. First token includes a csname number and the second points the
+string to be output. The third token includes the number of another
+csname and fourth token its pointer to the string etc. We need to do
+the sequential searching in one of the 128 token lists.
+
+@<Basic printing...@>=
+procedure print_cs(@!p:integer); {prints a purported control sequence}
+var q: pointer;
+ s: str_number;
+begin
+ if active_noconvert and (not no_convert) and
+ (eq_type(p) = let) and (equiv(p) = normal+11) then { noconvert }
+ begin
+ no_convert := true;
+ return;
+ end;
+ s := 0;
+ if cs_converting and (not no_convert) then
+ begin
+ q := mubyte_cswrite [p mod 128] ;
+ while q <> null do
+ if info (q) = p then
+ begin
+ s := info (link(q)); q := null;
+ end else q := link (link (q));
+ end;
+ no_convert := false;
+ if s > 0 then print (s)
+ else if p<hash_base then {single character}
+ at z
+
+ at x [18.262] - encTeX: exit label for print_cs
+ print_char(" ");
+ end;
+end;
+ at y
+ print_char(" ");
+ end;
+exit: end;
+ at z
+
+ at x [18.265] - encTeX: \endmubyte primitive
+primitive("endcsname",end_cs_name,0);@/
+@!@:end_cs_name_}{\.{\\endcsname} primitive@>
+ at y
+primitive("endcsname",end_cs_name,0);@/
+@!@:end_cs_name_}{\.{\\endcsname} primitive@>
+if enctex_p then
+begin
+ primitive("endmubyte",end_cs_name,10);@/
+@!@:end_mubyte_}{\.{\\endmubyte} primitive@>
+end;
+ at z
+
+ at x [18.266] - encTeX: \endmubyte primitive
+end_cs_name: print_esc("endcsname");
+ at y
+end_cs_name: if chr_code = 10 then print_esc("endmubyte")
+ else print_esc("endcsname");
+ at z
+
+ at x [22.318] encTeX - native buffer printing
+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
+i := start; mubyte_skeep := mubyte_keep;
+mubyte_sstart := mubyte_start; mubyte_start := false;
+if j>0 then while i < j do
+begin
+ if i=loc then set_trick_count;
+ print_buffer(i);
+end;
+mubyte_keep := mubyte_skeep; mubyte_start := mubyte_sstart
+ at z
+
+ at x [24.332] encTeX: insert the added functions
+appear on that line. (There might not be any tokens at all, if the
+|end_line_char| has |ignore| as its catcode.)
+ at y
+appear on that line. (There might not be any tokens at all, if the
+|end_line_char| has |ignore| as its catcode.)
+
+Some additional routines used by the enc\TeX extension have to be
+declared at this point.
+
+ at p @t\4@>@<Declare additional routines for enc\TeX@>@/
+ at z
+
+ at x [24.341] - encTeX: more declarations in expand processor
+var k:0..buf_size; {an index into |buffer|}
+@!t:halfword; {a token}
+ at y
+var k:0..buf_size; {an index into |buffer|}
+@!t:halfword; {a token}
+@!i,@!j: 0..buf_size; {more indexes for encTeX}
+@!mubyte_incs: boolean; {control sequence is converted by mubyte}
+@!p:pointer; {for encTeX test if noexpanding}
+ at z
+
+ at x [24.343] - encTeX: access the buffer via read_buffer
+ begin cur_chr:=buffer[loc]; incr(loc);
+ at y
+ begin
+ { Use |k| instead of |loc| for type correctness. }
+ k := loc;
+ cur_chr := read_buffer (k);
+ loc := k; incr (loc);
+ if (mubyte_token > 0) then
+ begin
+ state := mid_line;
+ cur_cs := mubyte_token - cs_token_flag;
+ goto found;
+ end;
+ at z
+
+ at x [24.354] - encTeX: access the buffer via read_buffer
+else begin start_cs: k:=loc; cur_chr:=buffer[k]; cat:=cat_code(cur_chr);
+ incr(k);
+ at y
+else begin start_cs:
+ mubyte_incs := false; k := loc; mubyte_skeep := mubyte_keep;
+ cur_chr := read_buffer (k); cat := cat_code (cur_chr);
+ if (mubyte_in>0) and (not mubyte_incs) and
+ ((mubyte_skip>0) or (cur_chr<>buffer[k])) then mubyte_incs := true;
+ incr (k);
+ if mubyte_token > 0 then
+ begin
+ state := mid_line;
+ cur_cs := mubyte_token - cs_token_flag;
+ goto found;
+ end;
+ at z
+
+ at x [24.354] - encTeX: noexpanding the marked control sequence
+ 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;
+ at y
+ mubyte_keep := mubyte_skeep;
+ cur_cs:=single_base + read_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;
+if write_noexpanding then
+begin
+ p := mubyte_cswrite [cur_cs mod 128];
+ while p <> null do
+ if info (p) = cur_cs then
+ begin
+ cur_cmd := relax; cur_chr := 256; p := null;
+ end else p := link (link (p));
+end;
+ at z
+
+ at x [24.355] - encTeX: deactivated when reading such \^^ab control sequences
+ limit:=limit-d; first:=first-d;
+ at y
+ limit:=limit-d; first:=first-d;
+ if mubyte_in>0 then mubyte_keep := k-loc;
+ at z
+
+ at x [24.356] - encTeX: access the buffer via read_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
+begin
+ repeat cur_chr := read_buffer (k); cat := cat_code (cur_chr);
+ if mubyte_token>0 then cat := escape;
+ if (mubyte_in>0) and (not mubyte_incs) and (cat=letter) and
+ ((mubyte_skip>0) or (cur_chr<>buffer[k])) then mubyte_incs := true;
+ incr (k);
+ until (cat <> letter) or (k > limit);
+ @<If an expanded...@>;
+ if cat <> letter then
+ begin
+ decr (k); k := k - mubyte_skip;
+ end;
+ if k > loc + 1 then { multiletter control sequence has been scanned }
+ begin
+ if mubyte_incs then { multibyte in csname occurrs }
+ begin
+ i := loc; j := first; mubyte_keep := mubyte_skeep;
+ if j - loc + k > max_buf_stack then
+ begin
+ max_buf_stack := j - loc + k;
+ if max_buf_stack >= buf_size then
+ begin
+ max_buf_stack := buf_size;
+ overflow ("buffer size", buf_size);
+ end;
+ end;
+ while i < k do
+ begin
+ buffer [j] := read_buffer (i);
+ incr (i); incr (j);
+ end;
+ if j = first+1 then
+ cur_cs := single_base + buffer [first]
+ else
+ cur_cs := id_lookup (first, j-first);
+ end else cur_cs := id_lookup (loc, k-loc) ;
+ loc := k;
+ goto found;
+ end;
+end
+ at z
+
+ at x [24.357] - encTeX: noexpanding the marked control sequence
+ else check_outer_validity;
+ at y
+ else check_outer_validity;
+ if write_noexpanding then
+ begin
+ p := mubyte_cswrite [cur_cs mod 128];
+ while p <> null do
+ if info (p) = cur_cs then
+ begin
+ cur_cmd := relax; cur_chr := 256; p := null;
+ end else p := link (link (p));
+ end;
+ at z
+
+ at x [24.363] encTeX - native buffer printing
+ if start<limit then for k:=start to limit-1 do print(buffer[k]);
+ at y
+ k := start;
+ while k < limit do begin print_buffer(k) end;
+ at z
+
+ at x [25.372] - encTeX: we need to distinguish \endcsname and \endmubyte
+if cur_cmd<>end_cs_name then @<Complain about missing \.{\\endcsname}@>;
+ at y
+if (cur_cmd<>end_cs_name) or (cur_chr<>0) then @<Complain about missing \.{\\endcsname}@>;
+ at z
+
+ at x [26.414] l.8358 - encTeX: accessing xord/xchr/xprn
+if m=math_code_base then scanned_result(ho(math_code(cur_val)))(int_val)
+ at y
+if m=xord_code_base then scanned_result(xord[cur_val])(int_val)
+else if m=xchr_code_base then scanned_result(xchr[cur_val])(int_val)
+else if m=xprn_code_base then scanned_result(xprn[cur_val])(int_val)
+else if m=math_code_base then scanned_result(ho(math_code(cur_val)))(int_val)
+ at z
+
+ at x [29.534] l.10293 - enc\TeX: add enc\TeX banner after loading fmt file
+ begin wlog_cr; wlog('MLTeX v2.2 enabled');
+ end;
+ at y
+ begin wlog_cr; wlog('MLTeX v2.2 enabled');
+ end;
+if enctex_enabled_p then
+ begin wlog_cr; wlog(encTeX_banner); wlog(', reencoding enabled');
+ if translate_filename then
+ begin wlog_cr;
+ wlog(' (\xordcode, \xchrcode, \xprncode overridden by TCX)');
+ end;
+ end;
+ at z
+
+ at x [48.1138] l.21648 - encTeX: \endmubyte primitive
+begin print_err("Extra "); print_esc("endcsname");
+ at .Extra \\endcsname@>
+help1("I'm ignoring this, since I wasn't doing a \csname.");
+ at y
+begin
+if cur_chr = 10 then
+begin
+ print_err("Extra "); print_esc("endmubyte");
+ at .Extra \\endmubyte@>
+ help1("I'm ignoring this, since I wasn't doing a \mubyte.");
+end else begin
+ print_err("Extra "); print_esc("endcsname");
+ at .Extra \\endcsname@>
+ help1("I'm ignoring this, since I wasn't doing a \csname.");
+end;
+ at z
+
+ at x [49.1211] - encTeX: extra variables for \mubyte primitive
+@!p,@!q:pointer; {for temporary short-term use}
+ at y
+@!p,@!q,@!r:pointer; {for temporary short-term use}
+ at z
+
+ at x [49.1219] - encTeX: \mubyte and \noconvert primitives
+primitive("futurelet",let,normal+1);@/
+@!@:future_let_}{\.{\\futurelet} primitive@>
+ at y
+primitive("futurelet",let,normal+1);@/
+@!@:future_let_}{\.{\\futurelet} primitive@>
+if enctex_p then
+begin
+ primitive("mubyte",let,normal+10);@/
+@!@:mubyte_}{\.{\\mubyte} primitive@>
+ primitive("noconvert",let,normal+11);@/
+@!@:noconvert_}{\.{\\noconvert} primitive@>
+end;
+ at z
+
+ at x [49.1220] - encTeX: \mubyte primitive
+let: if chr_code<>normal then print_esc("futurelet")@+else print_esc("let");
+ at y
+let: if chr_code<>normal then
+ if chr_code = normal+10 then print_esc("mubyte")
+ else if chr_code = normal+11 then print_esc("noconvert")
+ else print_esc("futurelet")
+ else print_esc("let");
+ at z
+
+ at x [49.1221] - encTeX: \mubyte primitive
+let: begin n:=cur_chr;
+ at y
+let: if cur_chr = normal+11 then do_nothing { noconvert primitive }
+ else if cur_chr = normal+10 then { mubyte primitive }
+ begin
+ selector:=term_and_log;
+ get_token;
+ mubyte_stoken := cur_tok;
+ if cur_tok <= cs_token_flag then mubyte_stoken := cur_tok mod 256;
+ mubyte_prefix := 60; mubyte_relax := false;
+ mubyte_tablein := true; mubyte_tableout := true;
+ get_x_token;
+ if cur_cmd = spacer then get_x_token;
+ if cur_cmd = sub_mark then
+ begin
+ mubyte_tableout := false; get_x_token;
+ if cur_cmd = sub_mark then
+ begin
+ mubyte_tableout := true; mubyte_tablein := false;
+ get_x_token;
+ end;
+ end else if (mubyte_stoken > cs_token_flag) and
+ (cur_cmd = mac_param) then
+ begin
+ mubyte_tableout := false;
+ scan_int; mubyte_prefix := cur_val; get_x_token;
+ if mubyte_prefix > 50 then mubyte_prefix := 52;
+ if mubyte_prefix <= 0 then mubyte_prefix := 51;
+ end
+ else if (mubyte_stoken > cs_token_flag) and (cur_cmd = relax) then
+ begin
+ mubyte_tableout := true; mubyte_tablein := false;
+ mubyte_relax := true; get_x_token;
+ end;
+ r := get_avail; p := r;
+ while cur_cs = 0 do begin store_new_token (cur_tok); get_x_token; end;
+ if (cur_cmd <> end_cs_name) or (cur_chr <> 10) then
+ begin
+ print_err("Missing "); print_esc("endmubyte"); print(" inserted");
+ help2("The control sequence marked <to be read again> should")@/
+("not appear in <byte sequence> between \mubyte and \endmubyte.");
+ back_error;
+ end;
+ p := link(r);
+ if (p = null) and mubyte_tablein then
+ begin
+ print_err("The empty <byte sequence>, ");
+ print_esc("mubyte"); print(" ignored");
+ help2("The <byte sequence> in")@/
+("\mubyte <token> <byte sequence>\endmubyte should not be empty.");
+ error;
+ end else begin
+ while p <> null do
+ begin
+ append_char (info(p) mod 256);
+ p := link (p);
+ end;
+ flush_list (r);
+ if (str_start [str_ptr] + 1 = pool_ptr) and
+ (str_pool [pool_ptr-1] = mubyte_stoken) then
+ begin
+ if mubyte_read [mubyte_stoken] <> null
+ and mubyte_tablein then { clearing data }
+ dispose_munode (mubyte_read [mubyte_stoken]);
+ if mubyte_tablein then mubyte_read [mubyte_stoken] := null;
+ if mubyte_tableout then mubyte_write [mubyte_stoken] := 0;
+ pool_ptr := str_start [str_ptr];
+ end else begin
+ if mubyte_tablein then mubyte_update; { updating input side }
+ if mubyte_tableout then { updating output side }
+ begin
+ if mubyte_stoken > cs_token_flag then { control sequence }
+ begin
+ dispose_mutableout (mubyte_stoken-cs_token_flag);
+ if (str_start [str_ptr] < pool_ptr) or mubyte_relax then
+ begin { store data }
+ r := mubyte_cswrite[(mubyte_stoken-cs_token_flag) mod 128];
+ p := get_avail;
+ mubyte_cswrite[(mubyte_stoken-cs_token_flag) mod 128] := p;
+ info (p) := mubyte_stoken-cs_token_flag;
+ link (p) := get_avail;
+ p := link (p);
+ if mubyte_relax then begin
+ info (p) := 0; pool_ptr := str_start [str_ptr];
+ end else info (p) := slow_make_string;
+ link (p) := r;
+ end;
+ end else begin { single character }
+ if str_start [str_ptr] = pool_ptr then
+ mubyte_write [mubyte_stoken] := 0
+ else
+ mubyte_write [mubyte_stoken] := slow_make_string;
+ end;
+ end else pool_ptr := str_start [str_ptr];
+ end;
+ end;
+ end else begin { let primitive }
+ n:=cur_chr;
+ at z
+
+ at x [49.1230] l.22936 - encTeX: \xordcode, \xchrcode, \xprncode primitives
+primitive("catcode",def_code,cat_code_base);
+@!@:cat_code_}{\.{\\catcode} primitive@>
+ at y
+primitive("catcode",def_code,cat_code_base);
+@!@:cat_code_}{\.{\\catcode} primitive@>
+if enctex_p then
+begin
+ primitive("xordcode",def_code,xord_code_base);
+@!@:xord_code_}{\.{\\xordcode} primitive@>
+ primitive("xchrcode",def_code,xchr_code_base);
+@!@:xchr_code_}{\.{\\xchrcode} primitive@>
+ primitive("xprncode",def_code,xprn_code_base);
+@!@:xprn_code_}{\.{\\xprncode} primitive@>
+end;
+ at z
+
+ at x [49.1231] l.22956 - encTeX: \xordcode, \xchrcode, \xprncode primitives
+def_code: if chr_code=cat_code_base then print_esc("catcode")
+ at y
+def_code: if chr_code=xord_code_base then print_esc("xordcode")
+ else if chr_code=xchr_code_base then print_esc("xchrcode")
+ else if chr_code=xprn_code_base then print_esc("xprncode")
+ else if chr_code=cat_code_base then print_esc("catcode")
+ at z
+
+ at x [49.1232] l.22969 - encTeX: setting a new value to xchr/xord/xprn
+ p:=cur_chr; scan_char_num; p:=p+cur_val; scan_optional_equals;
+ scan_int;
+ at y
+ p:=cur_chr; scan_char_num;
+ if p=xord_code_base then p:=cur_val
+ else if p=xchr_code_base then p:=cur_val+256
+ else if p=xprn_code_base then p:=cur_val+512
+ else p:=p+cur_val;
+ scan_optional_equals;
+ scan_int;
+ at z
+
+ at x [49.1232] l.22980 - encTeX: setting a new value to xchr/xord/xprn
+ if p<math_code_base then define(p,data,cur_val)
+ at y
+ if p<256 then xord[p]:=cur_val
+ else if p<512 then xchr[p-256]:=cur_val
+ else if p<768 then xprn[p-512]:=cur_val
+ else if p<math_code_base then define(p,data,cur_val)
+ at z
+
+ at x [49.1279] - encTeX: implement \noconvert
+old_setting:=selector; selector:=new_string;
+token_show(def_ref); selector:=old_setting;
+ at y
+old_setting:=selector; selector:=new_string;
+message_printing := true; active_noconvert := true;
+token_show(def_ref);
+message_printing := false; active_noconvert := false;
+selector:=old_setting;
+ at z
+
+% encTeX: |slow_print| is too eager to expand printed strings. To
+% selectively suppress or enable expansion (needed to \noconvert)
+% |print| will look at |message_printing|. So we bypass |slow_print|
+% and go directly to |print| instead.
+ at x [49.1279] - encTeX: to handle \noconvert in messages go directly to |print|
+slow_print(s); update_terminal;
+ at y
+print(s); update_terminal;
+ at z
+
+ at x [49.1279] - encTeX: to handle \noconvert in messages go directly to |print|
+begin print_err(""); slow_print(s);
+ at y
+begin print_err(""); print(s);
+ at z
+
+% encTeX: dump encTeX-specific data to fmt file.
+ at x [50.1302] l.23694
+@<Dump ML\TeX-specific data@>;
+ at y
+@<Dump ML\TeX-specific data@>;
+@<Dump enc\TeX-specific data@>;
+ at z
+
+% encTeX: undump encTeX-specific data from fmt file.
+ at x [50.1303] l.23694
+@<Undump ML\TeX-specific data@>;
+ at y
+@<Undump ML\TeX-specific data@>;
+@<Undump enc\TeX-specific data@>;
+ at z
+
+ at x [51.1337] l.24371 - enc\TeX: add. enc\TeX banner after loading fmt file
+ begin wterm_ln('MLTeX v2.2 enabled');
+ end;
+ at y
+ begin wterm_ln('MLTeX v2.2 enabled');
+ end;
+if enctex_enabled_p then
+ begin wterm(encTeX_banner); wterm_ln(', reencoding enabled.');
+ if translate_filename then begin
+ wterm_ln(' (\xordcode, \xchrcode, \xprncode overridden by TCX)');
+ end;
+ end;
+ at z
+
+ at x [53.1341] - encTeX: keep track of mubyte value for \write
+ at d write_stream(#) == info(#+1) {stream number (0 to 17)}
+ at y
+ at d write_stream(#) == type(#+1) {stream number (0 to 17)}
+ at d mubyte_zero == 64
+ at d write_mubyte(#) == subtype(#+1) {mubyte value + |mubyte_zero|}
+ at z
+
+ at x [53.1350] - encTeX: \write stores mubyte_out value
+write_stream(tail):=cur_val;
+ at y
+write_stream(tail):=cur_val;
+if mubyte_out + mubyte_zero < 0 then write_mubyte(tail) := 0
+else if mubyte_out + mubyte_zero >= 2*mubyte_zero then
+ write_mubyte(tail) := 2*mubyte_zero - 1
+ else write_mubyte(tail) := mubyte_out + mubyte_zero;
+ at z
+
+ at x [53.1353] - encTeX: \special stores specialout and mubyteout values
+begin new_whatsit(special_node,write_node_size); write_stream(tail):=null;
+p:=scan_toks(false,true); write_tokens(tail):=def_ref;
+ at y
+begin new_whatsit(special_node,write_node_size);
+if spec_out + mubyte_zero < 0 then write_stream(tail) := 0
+else if spec_out + mubyte_zero >= 2*mubyte_zero then
+ write_stream(tail) := 2*mubyte_zero - 1
+ else write_stream(tail) := spec_out + mubyte_zero;
+if mubyte_out + mubyte_zero < 0 then write_mubyte(tail) := 0
+else if mubyte_out + mubyte_zero >= 2*mubyte_zero then
+ write_mubyte(tail) := 2*mubyte_zero - 1
+ else write_mubyte(tail) := mubyte_out + mubyte_zero;
+if (spec_out = 2) or (spec_out = 3) then
+ if (mubyte_out > 2) or (mubyte_out = -1) or (mubyte_out = -2) then
+ write_noexpanding := true;
+p:=scan_toks(false,true); write_tokens(tail):=def_ref;
+write_noexpanding := false;
+ at z
+
+ at x [53.1355] - encTeX: \write prints \mubyteout value
+else print_char("-");
+ at y
+else print_char("-");
+if (s = "write") and (write_mubyte (p) <> mubyte_zero) then
+begin
+ print_char ("<"); print_int (write_mubyte(p)-mubyte_zero); print_char (">");
+end;
+ at z
+
+ at x [53.1356] - encTeX: \special prints \specialout and \mubyteout values
+special_node:begin print_esc("special");
+ at y
+special_node:begin print_esc("special");
+if write_stream(p) <> mubyte_zero then
+begin
+ print_char ("<"); print_int (write_stream(p)-mubyte_zero);
+ if (write_stream(p)-mubyte_zero = 2) or
+ (write_stream(p)-mubyte_zero = 3) then
+ begin
+ print_char (":"); print_int (write_mubyte(p)-mubyte_zero);
+ end;
+ print_char (">");
+end;
+ at z
+
+ at x [53.1368] - encTeX: conversions in \special
+old_setting:=selector; selector:=new_string;
+ at y
+old_setting:=selector; selector:=new_string;
+spec_sout := spec_out; spec_out := write_stream(p) - mubyte_zero;
+mubyte_sout := mubyte_out; mubyte_out := write_mubyte(p) - mubyte_zero;
+active_noconvert := true;
+mubyte_slog := mubyte_log;
+mubyte_log := 0;
+if (mubyte_out > 0) or (mubyte_out = -1) then mubyte_log := 1;
+if (spec_out = 2) or (spec_out = 3) then
+begin
+ if (mubyte_out > 0) or (mubyte_out = -1) then
+ begin
+ special_printing := true; mubyte_log := 1;
+ end;
+ if mubyte_out > 1 then cs_converting := true;
+end;
+ at z
+
+ at x [53.1368] - encTeX: conversions in \special
+for k:=str_start[str_ptr] to pool_ptr-1 do dvi_out(so(str_pool[k]));
+ at y
+if (spec_out = 1) or (spec_out = 3) then
+ for k:=str_start[str_ptr] to pool_ptr-1 do
+ str_pool[k] := si(xchr[so(str_pool[k])]);
+for k:=str_start[str_ptr] to pool_ptr-1 do dvi_out(so(str_pool[k]));
+spec_out := spec_sout; mubyte_out := mubyte_sout; mubyte_log := mubyte_slog;
+special_printing := false; cs_converting := false;
+active_noconvert := false;
+ at z
+
+ at x [53.1370] l.24770 - encTeX
+begin @<Expand macros in the token list
+ at y
+begin
+mubyte_sout := mubyte_out; mubyte_out := write_mubyte(p) - mubyte_zero;
+if (mubyte_out > 2) or (mubyte_out = -1) or (mubyte_out = -2) then
+ write_noexpanding := true;
+@<Expand macros in the token list
+ at z
+
+ at x [53.1370] - encTeX: conversion in parameter of \write
+token_show(def_ref); print_ln;
+ at y
+active_noconvert := true;
+if mubyte_out > 1 then cs_converting := true;
+mubyte_slog := mubyte_log;
+if (mubyte_out > 0) or (mubyte_out = -1) then mubyte_log := 1
+else mubyte_log := 0;
+token_show(def_ref); print_ln;
+cs_converting := false; write_noexpanding := false;
+active_noconvert := false;
+mubyte_out := mubyte_sout; mubyte_log := mubyte_slog;
+ at z
+
+ at x[54.1376] l.24903 - enc\TeX
+@* \[54] System-dependent changes.
+ at y
+@* \[54/enc\TeX] System-dependent changes for enc\TeX.
+
+ at d encTeX_banner == ' encTeX v. Jun. 2004'
+
+@ The boolean variable |enctex_p| is set by web2c according to the given
+command line option (or an entry in the configuration file) before any
+\TeX{} function is called.
+
+@<Global...@> =
+@!enctex_p: boolean;
+
+
+@ The boolean variable |enctex_enabled_p| is used to enable enc\TeX's
+primitives. It is initialised to |false|. When loading a \.{FMT} it
+is set to the value of the boolean |enctex_p| saved in the \.{FMT} file.
+Additionally it is set to the value of |enctex_p| in Ini\TeX.
+
+@<Glob...@>=
+@!enctex_enabled_p:boolean; {enable encTeX}
+
+
+@ @<Set init...@>=
+enctex_enabled_p:=false;
+
+
+@ Auxiliary functions/procedures for enc\TeX{} (by Petr Olsak) follow.
+These functions implement the \.{\\mubyte} code to convert
+the multibytes in |buffer| to one byte or to one control
+sequence. These functions manipulate a mubyte tree: each node of
+this tree is token list with n+1 tokens (first token consist the byte
+from the byte sequence itself and the other tokens point to the
+branches). If you travel from root of the tree to a leaf then you
+find exactly one byte sequence which we have to convert to one byte or
+control sequence. There are two variants of the leaf: the ``definitive
+end'' or the ``middle leaf'' if a longer byte sequence exists and the mubyte
+tree continues under this leaf. First variant is implemented as one
+memory word where the link part includes the token to
+which we have to convert and type part includes the number 60 (normal
+conversion) or 1..52 (insert the control sequence).
+The second variant of ``middle leaf'' is implemented as two memory words:
+first one has a type advanced by 64 and link points to the second
+word where info part includes the token to which we have to convert
+and link points to the next token list with the branches of
+the subtree.
+
+The inverse: one byte to multi byte (for log printing and \.{\\write}
+printing) is implemented via a pool. Each multibyte sequence is stored
+in a pool as a string and |mubyte_write|[{\it printed char\/}] points
+to this string.
+
+ at d new_mubyte_node ==
+ link (p) := get_avail; p := link (p); info (p) := get_avail; p := info (p)
+ at d subinfo (#) == subtype (#)
+
+@<Basic printing...@>=
+{ read |buffer|[|i|] and convert multibyte. |i| should have been
+ of type 0..|buf_size|, but web2c doesn't like that construct in
+ argument lists. }
+function read_buffer(var i:integer):ASCII_code;
+var p: pointer;
+ last_found: integer;
+ last_type: integer;
+begin
+ mubyte_skip := 0; mubyte_token := 0;
+ read_buffer := buffer[i];
+ if mubyte_in = 0 then
+ begin
+ if mubyte_keep > 0 then mubyte_keep := 0;
+ return ;
+ end;
+ last_found := -2;
+ if (i = start) and (not mubyte_start) then
+ begin
+ mubyte_keep := 0;
+ if (end_line_char >= 0) and (end_line_char < 256) then
+ if mubyte_read [end_line_char] <> null then
+ begin
+ mubyte_start := true; mubyte_skip := -1;
+ p := mubyte_read [end_line_char];
+ goto continue;
+ end;
+ end;
+restart:
+ mubyte_start := false;
+ if (mubyte_read [buffer[i]] = null) or (mubyte_keep > 0) then
+ begin
+ if mubyte_keep > 0 then decr (mubyte_keep);
+ return ;
+ end;
+ p := mubyte_read [buffer[i]];
+continue:
+ if type (p) >= 64 then
+ begin
+ last_type := type (p) - 64;
+ p := link (p);
+ mubyte_token := info (p); last_found := mubyte_skip;
+ end else if type (p) > 0 then
+ begin
+ last_type := type (p);
+ mubyte_token := link (p);
+ goto found;
+ end;
+ incr (mubyte_skip);
+ if i + mubyte_skip > limit then
+ begin
+ mubyte_skip := 0;
+ if mubyte_start then goto restart;
+ return;
+ end;
+ repeat
+ p := link (p);
+ if subinfo (info(p)) = buffer [i+mubyte_skip] then
+ begin
+ p := info (p); goto continue;
+ end;
+ until link (p) = null;
+ mubyte_skip := 0;
+ if mubyte_start then goto restart;
+ if last_found = -2 then return; { no found }
+ mubyte_skip := last_found;
+found:
+ if mubyte_token < 256 then { multibyte to one byte }
+ begin
+ read_buffer := mubyte_token; mubyte_token := 0;
+ i := i + mubyte_skip;
+ if mubyte_start and (i >= start) then mubyte_start := false;
+ return;
+ end else begin { multibyte to control sequence }
+ read_buffer := 0;
+ if last_type = 60 then { normal conversion }
+ i := i + mubyte_skip
+ else begin { insert control sequence }
+ decr (i); mubyte_keep := last_type;
+ if i < start then mubyte_start := true;
+ if last_type = 52 then mubyte_keep := 10000;
+ if last_type = 51 then mubyte_keep := mubyte_skip + 1;
+ mubyte_skip := -1;
+ end;
+ if mubyte_start and (i >= start) then mubyte_start := false;
+ return;
+ end;
+exit: end;
+
+@ @<Declare additional routines for enc\TeX@>=
+procedure mubyte_update; { saves new string to mubyte tree }
+var j: pool_pointer;
+ p: pointer;
+ q: pointer;
+ in_mutree: integer;
+begin
+ j := str_start [str_ptr];
+ if mubyte_read [so(str_pool[j])] = null then
+ begin
+ in_mutree := 0;
+ p := get_avail;
+ mubyte_read [so(str_pool[j])] := p;
+ subinfo (p) := so(str_pool[j]); type (p) := 0;
+ end else begin
+ in_mutree := 1;
+ p := mubyte_read [so(str_pool[j])];
+ end;
+ incr (j);
+ while j < pool_ptr do
+ begin
+ if in_mutree = 0 then
+ begin
+ new_mubyte_node; subinfo (p) := so(str_pool[j]); type (p) := 0;
+ end else { |in_mutree| = 1 }
+ if (type (p) > 0) and (type (p) < 64) then
+ begin
+ type (p) := type (p) + 64;
+ q := link (p); link (p) := get_avail; p := link (p);
+ info (p) := q;
+ new_mubyte_node; subinfo (p) := so(str_pool[j]); type (p) := 0;
+ in_mutree := 0;
+ end else begin
+ if type (p) >= 64 then p := link (p);
+ repeat
+ p := link (p);
+ if subinfo (info(p)) = so(str_pool[j]) then
+ begin
+ p := info (p);
+ goto continue;
+ end;
+ until link (p) = null;
+ new_mubyte_node; subinfo (p) := so(str_pool[j]); type (p) := 0;
+ in_mutree := 0;
+ end;
+continue:
+ incr (j);
+ end;
+ if in_mutree = 1 then
+ begin
+ if type (p) = 0 then
+ begin
+ type (p) := mubyte_prefix + 64;
+ q := link (p); link (p) := get_avail; p := link (p);
+ link (p) := q; info (p) := mubyte_stoken;
+ return;
+ end;
+ if type (p) >= 64 then
+ begin
+ type (p) := mubyte_prefix + 64;
+ p := link (p); info (p) := mubyte_stoken;
+ return;
+ end;
+ end;
+ type (p) := mubyte_prefix;
+ link (p) := mubyte_stoken;
+exit: end;
+@#
+procedure dispose_munode (p: pointer); { frees a mu subtree recursivelly }
+var q: pointer;
+begin
+ if (type (p) > 0) and (type (p) < 64) then free_avail (p)
+ else begin
+ if type (p) >= 64 then
+ begin
+ q := link (p); free_avail (p); p := q;
+ end;
+ q := link (p); free_avail (p); p := q;
+ while p <> null do
+ begin
+ dispose_munode (info (p));
+ q := link (p);
+ free_avail (p);
+ p := q;
+ end;
+ end;
+end;
+@#
+procedure dispose_mutableout (cs: pointer); { frees record from out table }
+var p, q, r: pointer;
+begin
+ p := mubyte_cswrite [cs mod 128];
+ r := null;
+ while p <> null do
+ if info (p) = cs then
+ begin
+ if r <> null then link (r) := link (link (p))
+ else mubyte_cswrite[cs mod 128] := link (link (p));
+ q := link (link(p));
+ free_avail (link(p)); free_avail (p);
+ p := q;
+ end else begin
+ r := link (p); p := link (r);
+ end;
+end;
+
+@ The |print_buffer| procedure prints one character from |buffer|[|i|].
+It also increases |i| to the next character in the buffer.
+
+@<Basic printing...@>=
+{ print one char from |buffer|[|i|]. |i| should have been of type
+ 0..|buf_size|, but web2c doesn't like that construct in argument lists. }
+procedure print_buffer(var i:integer);
+var c: ASCII_code;
+begin
+ if mubyte_in = 0 then print (buffer[i]) { normal TeX }
+ else if mubyte_log > 0 then print_char (buffer[i])
+ else begin
+ c := read_buffer (i);
+ if mubyte_token > 0 then print_cs (mubyte_token-cs_token_flag)
+ else print (c);
+ end;
+ incr (i);
+end;
+
+@ Additional material to dump for enc\TeX. This includes whether
+enc\TeX is enabled, and if it is we also have to dump the \.{\\mubyte}
+arrays.
+
+@<Dump enc\TeX-specific data@>=
+dump_int(@"45435458); {enc\TeX's magic constant: "ECTX"}
+if not enctex_p then dump_int(0)
+else begin
+ dump_int(1);
+ dump_things(mubyte_read[0], 256);
+ dump_things(mubyte_write[0], 256);
+ dump_things(mubyte_cswrite[0], 128);
+end;
+
+@ Undumping the additional material we dumped for enc\TeX. This includes
+conditionally undumping the \.{\\mubyte} arrays.
+
+@<Undump enc\TeX-specific data@>=
+undump_int(x); {check magic constant of enc\TeX}
+if x<>@"45435458 then goto bad_fmt;
+undump_int(x); {undump |enctex_p| flag into |enctex_enabled_p|}
+if x=0 then enctex_enabled_p:=false
+else if x<>1 then goto bad_fmt
+else begin
+ enctex_enabled_p:=true;
+ undump_things(mubyte_read[0], 256);
+ undump_things(mubyte_write[0], 256);
+ undump_things(mubyte_cswrite[0], 128);
+end;
+
+
+@* \[54] System-dependent changes.
+ at z
Property changes on: trunk/Build/source/texk/web2c/enctexdir/enctex2.ch
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+Date Author Id Revision
\ No newline at end of property
Modified: trunk/Build/source/texk/web2c/etexdir/ChangeLog
===================================================================
--- trunk/Build/source/texk/web2c/etexdir/ChangeLog 2021-02-13 22:18:48 UTC (rev 57735)
+++ trunk/Build/source/texk/web2c/etexdir/ChangeLog 2021-02-13 23:02:37 UTC (rev 57736)
@@ -1,3 +1,7 @@
+2021-02-13 Karl Berry <karl at freefriends.org>
+
+ * am/etex.am (etex_ch_srcs): adjust for split enctex changes.
+
2019-12-10 Hironori Kitagawa <h_kitagawa2001 at yahoo.co.jp>
* am/etex.am (etex_CPPFLAGS): append $(ZLIB_INCLUDES).
Modified: trunk/Build/source/texk/web2c/etexdir/am/etex.am
===================================================================
--- trunk/Build/source/texk/web2c/etexdir/am/etex.am 2021-02-13 22:18:48 UTC (rev 57735)
+++ trunk/Build/source/texk/web2c/etexdir/am/etex.am 2021-02-13 23:02:37 UTC (rev 57736)
@@ -1,6 +1,7 @@
+## $Id$
## texk/web2c/etexdir/am/etex.am: Makefile fragment for e-TeX.
##
-## Copyright 2015-2019 Karl Berry <tex-live at tug.org>
+## Copyright 2015-2021 Karl Berry <tex-live at tug.org>
## Copyright 2009-2015 Peter Breitenlohner <tex-live at tug.org>
## You may freely use, modify and/or distribute this file.
@@ -60,7 +61,9 @@
etexdir/tex.ch0 \
tex.ch \
zlib-fmt.ch \
- enctex.ch \
+ enctexdir/enctex1.ch \
+ enctexdir/enctex-tex.ch \
+ enctexdir/enctex2.ch \
$(etex_ch_synctex) \
etexdir/tex.ch1 \
etexdir/tex.ech \
Modified: trunk/Build/source/texk/web2c/pdftexdir/ChangeLog
===================================================================
--- trunk/Build/source/texk/web2c/pdftexdir/ChangeLog 2021-02-13 22:18:48 UTC (rev 57735)
+++ trunk/Build/source/texk/web2c/pdftexdir/ChangeLog 2021-02-13 23:02:37 UTC (rev 57736)
@@ -1,3 +1,7 @@
+2021-02-13 Karl Berry <karl at freefriends.org>
+
+ * am/pdftex.am (pdftex_ch_srcs): adjust for split enctex changes.
+
2021-02-06 Akira Kakuto <kakuto at w32tex.org>
* pdftex.web: sync \tracingparagraphs fix from tex.web.
Modified: trunk/Build/source/texk/web2c/pdftexdir/am/pdftex.am
===================================================================
--- trunk/Build/source/texk/web2c/pdftexdir/am/pdftex.am 2021-02-13 22:18:48 UTC (rev 57735)
+++ trunk/Build/source/texk/web2c/pdftexdir/am/pdftex.am 2021-02-13 23:02:37 UTC (rev 57736)
@@ -72,7 +72,9 @@
tex.ch \
tracingstacklevels.ch \
zlib-fmt.ch \
- enctex2.ch \
+ enctexdir/enctex1.ch \
+ enctexdir/enctex-pdftex.ch \
+ enctexdir/enctex2.ch \
$(pdftex_ch_synctex) \
pdftexdir/pdftex.ch \
pdftexdir/char-warning-pdftex.ch \
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