texlive[63512] Master/texmf-dist/doc/pdftex/samplepdftex: sync with
commits+karl at tug.org
commits+karl at tug.org
Wed Jun 8 19:34:24 CEST 2022
Revision: 63512
http://tug.org/svn/texlive?view=revision&revision=63512
Author: karl
Date: 2022-06-08 19:34:24 +0200 (Wed, 08 Jun 2022)
Log Message:
-----------
sync with pdftex r883 for restoring efcode.tex and protcode.tex
Revision Links:
--------------
http://tug.org/svn/texlive?view=revision&revision=883
Modified Paths:
--------------
trunk/Master/texmf-dist/doc/pdftex/samplepdftex/pdfcolor.tex
Added Paths:
-----------
trunk/Master/texmf-dist/doc/pdftex/samplepdftex/README
trunk/Master/texmf-dist/doc/pdftex/samplepdftex/efcode.tex
trunk/Master/texmf-dist/doc/pdftex/samplepdftex/protcode.tex
trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.mp
trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.pdf
Removed Paths:
-------------
trunk/Master/texmf-dist/doc/pdftex/samplepdftex/supp-mis.tex
trunk/Master/texmf-dist/doc/pdftex/samplepdftex/supp-pdf.tex
Added: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/README
===================================================================
--- trunk/Master/texmf-dist/doc/pdftex/samplepdftex/README (rev 0)
+++ trunk/Master/texmf-dist/doc/pdftex/samplepdftex/README 2022-06-08 17:34:24 UTC (rev 63512)
@@ -0,0 +1,24 @@
+$Id: README 883 2022-06-08 17:30:43Z karl $
+This samplepdf directory contains a few plain TeX example files. They
+are not meant to be used as-is, and may interfere with any real document.
+Please take them and adapt them as you see fit.
+
+The pdftex manual (texdoc pdftex ==
+http://mirrors.ctan.org/systems/doc/pdftex/manual/pdftex-a.pdf)
+is the reference documentation for pdfTeX.
+
+samplepdf.tex - document exhibiting many pdfTeX features.
+Please peruse both the output and the source.
+
+pdfcolor.tex - defining and using colors. (Used in samplepdf.tex)
+
+efcode.tex - sample \efcode settings and macros for font expansion.
+protcode.tex - sample \efcode settings and macros for character protrusion.
+(These two not used by samplepdf.tex. See the LaTeX package microtype
+for much more sophisticated support -- https://ctan.org/pkg/microtype.)
+
+Additionally, the standalone macro file supp-pdf.tex (-> supp-pdf.mkii)
+can read MetaPost output directly in pdftex while generating PDF. No
+need for eps-to-pdf conversion. It comes from ConTeXt and is included in
+the TeX distributions.
+
Property changes on: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/README
___________________________________________________________________
Added: svn:eol-style
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+native
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Added: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/efcode.tex
===================================================================
--- trunk/Master/texmf-dist/doc/pdftex/samplepdftex/efcode.tex (rev 0)
+++ trunk/Master/texmf-dist/doc/pdftex/samplepdftex/efcode.tex 2022-06-08 17:34:24 UTC (rev 63512)
@@ -0,0 +1,89 @@
+% $Id: efcode.tex 883 2022-06-08 17:30:43Z karl $
+% Public domain. Originally written by Han The THanh.
+% Example \efcode ("expansion factor code") settings
+% for per-glyph tuning of font expansions.
+%
+% Also includes a basic macro to enable font expansion, adjusting for
+% LuaTeX and pdfTeX.
+%
+% As written, this file does nothing but make definitions.
+% Adapt and adjust for your needs.
+%
+% Much more in the LaTeX microtype package (https://ctan.org/pkg/microtype).
+
+\newcount\temploopefcode
+\def\resetefcode#1{% reset all to 1000
+ \temploopefcode=0
+ \loop
+ \efcode#1\temploopefcode=1000
+ \advance\temploopefcode 1
+ \ifnum\temploopefcode < 256 \repeat
+}
+
+\def\setefcode#1{%
+ \efcode#1`\2=700
+ \efcode#1`\3=700
+ \efcode#1`\6=700
+ \efcode#1`\8=700
+ \efcode#1`\9=700
+ \efcode#1`\A=500
+ \efcode#1`\B=700
+ \efcode#1`\C=700
+ \efcode#1`\D=500
+ \efcode#1`\E=700
+ \efcode#1`\F=700
+ \efcode#1`\G=500
+ \efcode#1`\H=700
+ \efcode#1`\K=700
+ \efcode#1`\M=700
+ \efcode#1`\N=700
+ \efcode#1`\O=500
+ \efcode#1`\P=700
+ \efcode#1`\Q=500
+ \efcode#1`\R=700
+ \efcode#1`\S=700
+ \efcode#1`\U=700
+ \efcode#1`\W=700
+ \efcode#1`\Z=700
+ \efcode#1`\a=700
+ \efcode#1`\b=700
+ \efcode#1`\c=700
+ \efcode#1`\d=700
+ \efcode#1`\e=700
+ \efcode#1`\g=700
+ \efcode#1`\h=700
+ \efcode#1`\k=700
+ \efcode#1`\m=700
+ \efcode#1`\n=700
+ \efcode#1`\o=700
+ \efcode#1`\p=700
+ \efcode#1`\q=700
+ \efcode#1`\s=700
+ \efcode#1`\u=700
+ \efcode#1`\w=700
+ \efcode#1`\z=700
+}
+
+% emacs-page
+% Different primitives for LuaTeX and pdfTeX.
+% This fragment courtesy of Robert Schlicht,
+% https://tex.stackexchange.com/questions/646769. Public domain.
+%
+\input iftex.sty
+\ifluatex
+ \adjustspacing=2
+ \def\mtplnfontexpand#1{%
+ \expandglyphsinfont #1 20 20 1\relax}
+\else
+ \pdfadjustspacing=2
+ \def\mtplnfontexpand#1{%
+ \pdffontexpand #1 20 20 1 autoexpand\relax}
+\fi
+% enable for these fonts.
+%\mtplnfontexpand\tenrm
+%\mtplnfontexpand\tensl
+%\mtplnfontexpand\tenbf
+
+%\hsize=2.2in
+%\input story
+%\bye
Property changes on: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/efcode.tex
___________________________________________________________________
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Modified: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/pdfcolor.tex
===================================================================
--- trunk/Master/texmf-dist/doc/pdftex/samplepdftex/pdfcolor.tex 2022-06-07 23:48:43 UTC (rev 63511)
+++ trunk/Master/texmf-dist/doc/pdftex/samplepdftex/pdfcolor.tex 2022-06-08 17:34:24 UTC (rev 63512)
@@ -1,4 +1,6 @@
+% $Id: pdfcolor.tex 883 2022-06-08 17:30:43Z karl $
% Very simple macros to show how to use colors with pdftex
+% Public domain. Originally written by Han The Thanh.
\def\cmykGreenYellow{0.15 0 0.69 0}
\def\cmykYellow{0 0 1 0}
Added: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/protcode.tex
===================================================================
--- trunk/Master/texmf-dist/doc/pdftex/samplepdftex/protcode.tex (rev 0)
+++ trunk/Master/texmf-dist/doc/pdftex/samplepdftex/protcode.tex 2022-06-08 17:34:24 UTC (rev 63512)
@@ -0,0 +1,93 @@
+% $Id: protcode.tex 883 2022-06-08 17:30:43Z karl $
+% Public domain. Originally written by Han The THanh.
+% Example \lpcode and \rpcode ("left/right protrusion code") settings
+% for per-glyph tuning of protrusion, and a macro to execute them
+%
+% As written, this file does nothing but make definitions.
+% Adapt and adjust for your needs.
+%
+% Much more in the LaTeX microtype package (https://ctan.org/pkg/microtype).
+
+\def\setprotcode#1{%
+ % this macro works with OT1 encoding only -- mostly ASCII,
+ % but assumes OT1 for quotes and dashes.
+ \rpcode#1`\!=200
+ \rpcode#1`\,=700
+ \rpcode#1`\-=700
+ \rpcode#1`\.=700
+ \rpcode#1`\;=500
+ \rpcode#1`\:=500
+ \rpcode#1`\?=200
+ \lpcode#1`\`=700
+ \rpcode#1`\'=700
+ \lpcode#1 92=500 % ``
+ \rpcode#1 34=500 % ''
+ \rpcode#1 123=300 % --
+ \rpcode#1 124=200 % ---
+ \rpcode#1`\)=50
+ \rpcode#1`\A=50
+ \rpcode#1`\F=50
+ \rpcode#1`\K=50
+ \rpcode#1`\L=50
+ \rpcode#1`\T=50
+ \rpcode#1`\V=50
+ \rpcode#1`\W=50
+ \rpcode#1`\X=50
+ \rpcode#1`\Y=50
+ \rpcode#1`\k=50
+ \rpcode#1`\r=50
+ \rpcode#1`\t=50
+ \rpcode#1`\v=50
+ \rpcode#1`\w=50
+ \rpcode#1`\x=50
+ \rpcode#1`\y=50
+ \lpcode#1`\(=50
+ \lpcode#1`\A=50
+ \lpcode#1`\J=50
+ \lpcode#1`\T=50
+ \lpcode#1`\V=50
+ \lpcode#1`\W=50
+ \lpcode#1`\X=50
+ \lpcode#1`\Y=50
+ \lpcode#1`\v=50
+ \lpcode#1`\w=50
+ \lpcode#1`\x=50
+ \lpcode#1`\y=0
+ \adjustprotcode#1\relax
+}
+
+\newif\ifneedadjustprotcode
+\newbox\boxA
+\newcount\countA
+\newcount\countB
+\def\adjustprotcode#1{%
+ \needadjustprotcodefalse
+ \ifnum\pdftexversion = 14
+ \ifnum \expandafter`\pdftexrevision > `g
+ \needadjustprotcodetrue
+ \fi
+ \else\ifnum\pdftexversion > 14
+ \needadjustprotcodetrue
+ \fi \fi
+ \ifneedadjustprotcode
+ \countA=0
+ \loop
+ \ifcase\lpcode#1\countA\else
+ \adjustcp\lpcode#1\countA
+ \fi
+ \ifcase\rpcode#1\countA\else
+ \adjustcp\rpcode#1\countA
+ \fi
+ \advance\countA 1
+ \ifnum\countA < 256 \repeat
+ \fi
+}
+\def\adjustcp#1#2#3{%
+ \setbox\boxA=\hbox{%
+ \ifx#2\font\else#2\fi
+ \char#3}%
+ \countB=\wd\boxA
+ \multiply\countB #1#2#3\relax
+ \divide\countB \fontdimen6 #2\relax
+ #1#2#3=\countB\relax
+}
Property changes on: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/protcode.tex
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Added: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.mp
===================================================================
--- trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.mp (rev 0)
+++ trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.mp 2022-06-08 17:34:24 UTC (rev 63512)
@@ -0,0 +1 @@
+prologues := 1; def drawleaf(expr A, B, C) = pickup pencircle scaled 4bp; draw (0, 0) {dir 60} .. A .. {dir 60} B withcolor C; pickup pencircle scaled 2bp; draw A {dir 75} .. {dir 45} B withcolor C; draw A {right} .. {dir 75} B withcolor C; enddef; beginfig(0); drawleaf((50, 50), (400, 250), .6green); d := .5 xpart (400, 250); currentpicture := currentpicture reflectedabout ((d, 0), (d, 1)); endfig; beginfig(1); drawleaf((50, 50), (400, 250), .6blue); currentpicture := currentpicture reflectedabout ((50, 50), (400, 250)); endfig; end;
Property changes on: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.mp
___________________________________________________________________
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Added: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.pdf
===================================================================
(Binary files differ)
Index: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.pdf
===================================================================
--- trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.pdf 2022-06-07 23:48:43 UTC (rev 63511)
+++ trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.pdf 2022-06-08 17:34:24 UTC (rev 63512)
Property changes on: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/samplepdf.pdf
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Deleted: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/supp-mis.tex
===================================================================
--- trunk/Master/texmf-dist/doc/pdftex/samplepdftex/supp-mis.tex 2022-06-07 23:48:43 UTC (rev 63511)
+++ trunk/Master/texmf-dist/doc/pdftex/samplepdftex/supp-mis.tex 2022-06-08 17:34:24 UTC (rev 63512)
@@ -1,695 +0,0 @@
-%D \module
-%D [ file=supp-mis,
-%D version=2004.10.26, % 1997.01.04,
-%D title=\CONTEXT\ Support Macros,
-%D subtitle=Missing (For Generic Use),
-%D author=Hans Hagen,
-%D date=\currentdate,
-%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
-%C
-%C This module is part of the \CONTEXT\ macro||package and is
-%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
-%C details.
-
-%D Some support modules are more or less independant. This
-%D module, which is not part of plain \CONTEXT, provides the
-%D missing macros and declarations of registers.
-
-\ifx \undefined \writestatus \else \expandafter \endinput \fi
-
-%D Because \LATEX\ has no safe package loading mechanism, we
-%D need to take care of possible interference.
-
-\def\StartLatexHack
- {\edef\StopLatexHack
- {\catcode`\noexpand/=\the\catcode`/
- \catcode`\noexpand:=\the\catcode`:
- \catcode`\noexpand;=\the\catcode`;
- \catcode`\noexpand"=\the\catcode`"
- \catcode`\noexpand<=\the\catcode`<
- \catcode`\noexpand>=\the\catcode`>}%
- \catcode`/=12 \catcode`:=12 \catcode`;=12
- \catcode`"=12 \catcode`<=12 \catcode`>=12 }
-
-%D This hack is needed especially for \LATEX\ users who use
-%D the Babel package. The Germans have active \type {"}'s, the
-%D Poles have \type {/}, while the French have \type {:} and
-%D \type {;} defines as command (thanks to Daniel Flipo for
-%D pointing that out and testing). Potentially active \type
-%D {?}'s and \type {!}'s are less dangerous since they are
-%D handled by the \type {\protect} and \type {\unprotect}
-%D macros.
-
-\StartLatexHack
-
-%D \macros
-%D {ifnocontextobject}
-%D
-%D First we take care of redundant defining. The next set of
-%D macros are a bit complicated by the fact that Plain
-%D \TEX\ defines the \type{\new}||macros as being outer.
-%D Furthermore nested \type{\if}'s can get us into
-%D trouble.
-
-\def\definecontextobject
- {\iftrue}
-
-\def\gobblecontextobject
- {\setbox0\hbox
- \bgroup
- \long\def\gobblecontextobject##1\fi{\egroup}%
- \expandafter\gobblecontextobject\string}
-
-\long\def\ifnocontextobject#1\do
- {\ifx#1\undefined
- \expandafter\definecontextobject
- \else
- %\writestatus{system}{beware of conflicting \string#1}%
- \expandafter\gobblecontextobject
- \fi}
-
-%D \macros
-%D {beginETEX,beginTEX}
-%D
-%D Outside \CONTEXT\ we will not be \ETEX||aware.
-
-\long\def\beginETEX #1\endETEX {}
-\long\def\beginOMEGA#1\endOMEGA{}
-
-\let\beginTEX\relax \let\endTEX\relax
-
-%D \macros
-%D {writestatus}
-%D
-%D We start each module with a message. Normally the output is
-%D formatted, but here we keep things simple.
-
-\ifnocontextobject \writestatus \do
-
- \def\writestatus#1#2%
- {\immediate\write16{#1 : #2}}
-
-\fi
-
-%D Let's see if it works.
-
-\writestatus{loading}{Context Support Macros / Miscellaneous (2004.10.26)}
-
-%D \macros
-%D {protect,unprotect}
-%D
-%D Next we present a poor mans alternative for \type{\protect}
-%D and \type{\unprotect}, two commands that enable us to use
-%D the characters \type{@}, \type{!} and \type{?} in macro
-%D names.
-
-\ifnocontextobject \protect \do
-
- \let\protect\relax
-
-\fi
-
-\newcount\protectiondepth
-
-\ifnocontextobject \unprotect \do
-
- \def\unprotect
- {\advance\protectiondepth 1
- \ifnum\protectiondepth=1
- \let\normalprotect=\protect
- \def\protect
- {\ifnum\protectiondepth>0
- \advance\protectiondepth -1
- \ifnum\protectiondepth=0
- \doprotect
- \let\protect=\normalprotect
- \fi
- \fi}
- \edef\doprotect
- {\catcode`\noexpand @=\the\catcode`@\relax
- \catcode`\noexpand !=\the\catcode`!\relax
- \catcode`\noexpand ?=\the\catcode`?\relax}
- \catcode`@=11
- \catcode`!=11
- \catcode`?=11
- \fi}
-
-\fi
-
-%D We start using this one it at once.
-
-\unprotect
-
-%D \macros
-%D {scratch...,if...,next...}
-%D
-%D We need some scratch registers. Users are free to use them,
-%D but can never be sure of their value once another macro is
-%D called. We only allocate things when they are yet
-%D undefined. This way we can't mess up other macro packages,
-%D but of course previous definitions can mess up our modules.
-
-\ifnocontextobject \donetrue \do \newif\ifdone \fi
-
-% no time now, will do a better test later (based on dimendef)
-
-\def\!!stringa{plain} \ifx\!!stringa\fmtname \donetrue \else
-\def\!!stringa{babel-plain} \ifx\!!stringa\fmtname \donetrue \else
- \donefalse \fi \fi
-
-\ifdone
- % plain defines some 15 dimens, so we need to define a few
- % dummies in order to get out of the scratch area
- \newdimen\scratchdimen % 16
- \newdimen\scratchdimen % 17
- \newdimen\scratchdimen % 18
- \newdimen\scratchdimen % 19
- \newdimen\scratchdimen % 20
- \newdimen\scratchdimen % 21
-\fi
-
-\ifnocontextobject \scratchcounter \do \newcount \scratchcounter \fi
-\ifnocontextobject \scratchtoks \do \newtoks \scratchtoks \fi
-\ifnocontextobject \scratchdimen \do \newdimen \scratchdimen \fi
-\ifnocontextobject \scratchskip \do \newskip \scratchskip \fi
-\ifnocontextobject \scratchmuskip \do \newmuskip \scratchmuskip \fi
-\ifnocontextobject \scratchbox \do \newbox \scratchbox \fi
-\ifnocontextobject \scratchread \do \newread \scratchread \fi
-\ifnocontextobject \scratchwrite \do \newwrite \scratchwrite \fi
-
-%D Watch out, in the past we ran into troubles with \type {\onepoint}
-%D (and others) mening something different in \LATEX\ then here. In
-%D such situations clashes are bound to happen. For this reason the
-%D assignments are no inside the test. We try to catch those situations
-%D but we cannot keep ahead of teh future.
-
-\ifnocontextobject \zeropoint \do \newdimen \zeropoint \zeropoint = 0pt \fi % else problems with dimen12
-\ifnocontextobject \onepoint \do \newdimen \onepoint \onepoint = 1pt \fi
-\ifnocontextobject \onebasepoint \do \newdimen \onebasepoint \onebasepoint = 1bp \fi
-\ifnocontextobject \zerocount \do \chardef \zerocount = 0 \fi
-\ifnocontextobject \plusone \do \chardef \plusone = 1 \fi
-\ifnocontextobject \minusone \do \newcount \minusone \minusone = -1 \fi
-\ifnocontextobject \thousandpoint \do \newdimen \thousandpoint \thousandpoint = 1000pt \fi
-\ifnocontextobject \onerealpoint \do \newdimen \onerealpoint \onerealpoint = 1pt \fi % latex has a funny \onepoint
-
-\ifnocontextobject \emptytoks \do \newtoks \emptytoks \fi
-\ifnocontextobject \nextbox \do \newbox \nextbox \fi
-\ifnocontextobject \nextdepth \do \newdimen \nextdepth \fi
-
-\ifnocontextobject \CONTEXTtrue \do \newif\ifCONTEXT \fi
-\ifnocontextobject \eightbitcharacterstrue \do \newif\ifeightbitcharacters \fi
-\ifnocontextobject \MPdrawingdonetrue \do \newif\ifMPdrawingdone \fi
-
-\ifnocontextobject \ifzeropt \do \let\ifzeropt\ifcase \fi
-
-%D \macros
-%D {@@...}
-%D
-%D We use symbolic name for \CATCODES. They can only be used
-%D when we are in unprotected state.
-
-\ifnocontextobject \@@escape \do \chardef\@@escape = 0 \fi
-\ifnocontextobject \@@begingroup \do \chardef\@@begingroup = 1 \fi
-\ifnocontextobject \@@endgroup \do \chardef\@@endgroup = 2 \fi
-\ifnocontextobject \@@endofline \do \chardef\@@endofline = 5 \fi
-\ifnocontextobject \@@ignore \do \chardef\@@ignore = 9 \fi
-\ifnocontextobject \@@space \do \chardef\@@space = 10 \fi
-\ifnocontextobject \@@letter \do \chardef\@@letter = 11 \fi
-\ifnocontextobject \@@other \do \chardef\@@other = 12 \fi
-\ifnocontextobject \@@active \do \chardef\@@active = 13 \fi
-\ifnocontextobject \@@comment \do \chardef\@@comment = 14 \fi
-
-\def\s!sp{sp}
-\def\s!pt{pt}
-\def\s!bp{bp}
-
-%D \macros
-%D {@EA,expanded,expandoneargafter,expandtwoargsafter}
-%D
-%D Also needed:
-
-\let\@EA=\expandafter \let\@@expanded\empty
-
-\def\expanded#1%
- {\long\xdef\@@expanded{\noexpand#1}\@@expanded}
-
-\def\expandoneargafter#1#2%
- {\@EA#1\@EA{#2}}
-
-\def\expandtwoargsafter#1#2#3%
- {\@EA\@EA\@EA#1\@EA\@EA\@EA{\@EA#2\@EA}\@EA{#3}}
-
-\def\@EAEAEA{\@EA\@EA\@EA}
-
-%D \macros
-%D {everyline,EveryLine,EveryPar}
-%D
-%D In \CONTEXT\ we use \type{\everypar} for special purposes
-%D and provide \type{\EveryPar} as an alternative. The same
-%D goes for \type{\everyline} and \type{\EveryLine}.
-
-\ifnocontextobject \everyline \do \newtoks\everyline \fi
-\ifnocontextobject \EveryPar \do \let\EveryPar =\everypar \fi
-\ifnocontextobject \EveryLine \do \let\EveryLine=\everyline \fi
-
-%D \macros
-%D {globallet}
-
-\def\globallet{\global\let}
-
-%D \macros
-%D {!!...}
-%D
-%D We reserve ourselves some scratch strings (i.e. macros)
-%D and some more counters.
-
-\ifnocontextobject \!!stringa \do \def\!!stringa {} \fi
-\ifnocontextobject \!!stringb \do \def\!!stringb {} \fi
-\ifnocontextobject \!!stringc \do \def\!!stringc {} \fi
-\ifnocontextobject \!!stringd \do \def\!!stringd {} \fi
-
-\ifnocontextobject \!!counta \do \newcount\!!counta {} \fi
-\ifnocontextobject \!!countb \do \newcount\!!countb {} \fi
-
-%D \macros
-%D {!!...}
-%D
-%D The next set of definitions speed up processing a bit.
-%D Furthermore it saves memory.
-
-\ifnocontextobject \!!zeropoint \do \def\!!zeropoint {0pt} \fi
-\ifnocontextobject \!!zerocount \do \def\!!zerocount {0} \fi
-\ifnocontextobject \!!tenthousand \do \def\!!tenthousand {10000} \fi
-
-\ifnocontextobject \!!width \do \def\!!width {width} \fi
-\ifnocontextobject \!!height \do \def\!!height {height} \fi
-\ifnocontextobject \!!depth \do \def\!!depth {depth} \fi
-
-\ifnocontextobject \!!plus \do \def\!!plus {plus} \fi
-\ifnocontextobject \!!minus \do \def\!!minus {minus} \fi
-\ifnocontextobject \!!to \do \def\!!to {to} \fi
-
-%D \macros
-%D {smashbox}
-%D
-%D The system modules offer a range of smashing macros, of
-%D which we only copied \type{\smashbox}.
-
-\ifnocontextobject \smashbox \do
-
- \def\smashbox#1%
- {\wd#1\zeropoint
- \ht#1\zeropoint
- \dp#1\zeropoint}
-
-\fi
-
-%D \macros
-%D {dowithnextbox}
-%D
-%D Also without further comment, we introduce a macro that
-%D gets the next box and does something usefull with it.
-%D Because the \type{\afterassignment} is executed inside the
-%D box, we have to use a \type{\aftergroup} too.
-
-\ifnocontextobject \dowithnextbox \do
-
- \def\dowithnextbox#1%
- {\def\dodowithnextbox{#1}%
- \afterassignment\dododowithnextbox
- \setbox\nextbox}
-
- \def\dododowithnextbox%
- {\aftergroup\dodowithnextbox}
-
-\fi
-
-%D \macros
-%D {setvalue,setevalue,setxvalue,,setgvalue,
-%D getvalue,
-%D letvalue,letgvalue}
-%D
-%D The next two macros expand their argument to
-%D \type{\argument}. The first one is used to define macro's
-%D the second one executes them.
-
-\ifnocontextobject \setvalue \do
-
- \def\setvalue #1{\expandafter\def\csname#1\endcsname}
- \def\setevalue#1{\expandafter\edef\csname#1\endcsname}
- \def\setgvalue#1{\expandafter\gdef\csname#1\endcsname}
- \def\setxvalue#1{\expandafter\xdef\csname#1\endcsname}
- \def\getvalue #1{\csname#1\endcsname}
- \def\letvalue #1{\expandafter\let\csname#1\endcsname}
- \def\letgvalue#1{\global\expandafter\let\csname#1\endcsname}
-\fi
-
-%D \macros
-%D {unexpanded}
-%D
-%D The next command can be used as prefixed for commands that
-%D need protection during tests and writing to files. This
-%D is a very \CONTEXT\ specific one.
-
-\ifnocontextobject \unexpanded \do
-
- \let\unexpanded\relax
-
-\fi
-
-%D \macros
-%D {convertargument}
-%D
-%D The original one offers a bit more, like global assignment, the
-%D the next implementation is however a bit more byte saving.
-
-\ifnocontextobject \convertargument \do
-
- \def\doconvertargument#1>{}
-
- \long\def\convertargument#1\to#2%
- {\long\def\convertedargument{#1}%
- \edef#2{\expandafter\doconvertargument\meaning\convertedargument}}
-
-\fi
-
-%D \macros
-%D {forgetall}
-%D
-%D Sometimes we have to disable interference of whatever kind
-%D of skips and mechanisms. The next macro resets some.
-
-\ifnocontextobject \forgetall \do
-
- \def\forgetall
- {\parskip\zeropoint
- \leftskip\zeropoint
- \parindent\zeropoint
- \everypar{}}
-
-\fi
-
-%D \macros
-%D {withoutpt,
-%D ScaledPointsToBigPoints,ScaledPointsToWholeBigPoints}
-%D
-%D \TEX\ lacks some real datastructure. We can however use
-%D \DIMENSIONS. This kind of trickery is needed when we want
-%D \TEX\ to communicate with the outside world (by means of
-%D \type{\specials}).
-
-\ifnocontextobject \withoutpt \do
-
- {\catcode`\.=\@@other
- \catcode`\p=\@@other
- \catcode`\t=\@@other
- \gdef\WITHOUTPT#1pt{#1}}
-
- \def\withoutpt#1%
- {\expandafter\WITHOUTPT#1}
-
- \def\ScaledPointsToBigPoints#1#2%
- {\scratchdimen=#1sp\relax
- \scratchdimen=.996264\scratchdimen
- \edef#2{\withoutpt{\the\scratchdimen}}}
-
- \def\ScaledPointsToWholeBigPoints#1#2%
- {\scratchdimen=#1sp
- \scratchdimen=.996264\scratchdimen
- \scratchcounter=\scratchdimen
- \advance\scratchcounter by 32768
- \divide\scratchcounter by 65536
- \edef#2{\the\scratchcounter}}
-
-\fi
-
-%D \macros
-%D {doprocessfile}
-%D
-%D This macro takes three arguments: the file number, the
-%D filename and a macro that handles the content of a read
-%D line.
-
-\newif\iffileprocessed
-
-\ifnocontextobject \doprocessfile \do
-
- \def\doprocessfile#1#2#3%
- {\openin#1=#2\relax
- \ifeof#1%
- \fileprocessedfalse
- \closein#1\relax
- \else
- \fileprocessedtrue
- \gdef\dofinishfile%
- {\closein#1\relax
- \global\let\doprocessline\relax}%
- \gdef\doprocessline%
- {\ifeof#1%
- \dofinishfile
- \else
- \global\read#1 to \fileline
- #3\relax
- \expandafter\doprocessline
- \fi}%
- \expandafter\doprocessline
- \fi}
-
-\fi
-
-%D \macros
-%D {uncatcodespecials}
-%D
-%D This one is taken from the \TEX\ book. The \CONTEXT\
-%D alternative is a bit different, but we hope this one works
-%D here.
-
-\ifx\dospecials\undefined
-
- \def\dospecials
- {\do\ \do\\\do\{\do\}\do\$%
- \do\#\do\^\do\_\do\&\do\%%
- \do\~\do\^^A\do\^^K}
-
-\fi
-
-\ifnocontextobject \uncatcodespecials \do
-
- \def\uncatcodespecials
- {\def\do##1{\catcode`##1=12 }\dospecials
- \catcode`\ =\@@space
- \catcode`\^^L=\@@ignore
- \catcode`\^^M=\@@endofline
- \catcode`\^^?=\@@ignore}
-
-\fi
-
-\ifnocontextobject \setnaturalcatcodes \do
-
-\def\setnaturalcatcodes
- {\catcode`\!=\@@other \catcode`\?=\@@other \catcode`\@=\@@other
- \catcode`\#=\@@other \catcode`\&=\@@other \catcode`\|=\@@other
- \catcode`\$=\@@other \catcode`\^=\@@other \catcode`\_=\@@other
- \catcode`\*=\@@other \catcode`\/=\@@other
- \catcode`\-=\@@other \catcode`+=\@@other
- \catcode`\==\@@other \catcode`\<=\@@other \catcode`\>=\@@other
- \catcode`\"=\@@other \catcode`\'=\@@other \catcode`\`=\@@other
- \catcode`\:=\@@other \catcode`\;=\@@other
- \catcode`\,=\@@other \catcode`\.=\@@other \catcode`\~=\@@other
- \catcode`\(=\@@other \catcode`\)=\@@other
- \catcode`\{=\@@other \catcode`\}=\@@other
- \catcode`\\=\@@other \catcode`\%=\@@other }
-
-\fi
-
-%D \macros
-%D {doglobal}
-%D
-%D Some \CONTEXT\ low level macros can have a \type{\doglobal}
-%D prefix. Let's just forget about that here:
-
-\ifnocontextobject \doglobal \do \let\doglobal\relax \fi
-
-%D The next obscure one is needed in the generic verbatim
-%D environment. When we end up with more of these, it's time
-%D to load the module \type{syst-gen}.
-
-\ifnocontextobject \doifincsnameelse \do
-
- \def\dodoifincsnameelse#1#2%
- {\def\dododoifincsnameelse##1#1##2##3\war%
- {\csname\if##2 at iffalse\else iftrue\fi\endcsname}%
- \expandafter\dododoifincsnameelse#2#1@@\war}
-
- \long\def\doifincsnameelse#1#2#3#4%
- {\edef\@@instring{#1}%
- \expandafter\dodoifincsnameelse\expandafter{\@@instring}{#2}%
- #3%
- \else
- #4%
- \fi}
-
-\fi
-
-%D \macros
-%D {dostepwiserecurse, dorecurse, doloop, exitloop}
-%D
-%D The next loop macro is a real weak one, and does not offer
-%D the full \CONTEXT\ functionality, let alone nesting, but
-%D for simple purposes, its behaviour is acceptable.
-
-\newcount\recursecounter
-
-\def\dostepwiserecurse#1#2#3#4% very weak and rubishly version
- {\ifnum#2<#1\relax\else\dodostepwiserecurse{#1}{#2}{#3}{#4}\fi}
-
-\def\dodostepwiserecurse#1#2#3#4% very weak and rubishly version
- {\recursecounter=#1\relax
- \loop
- \edef\recurselevel{\the\recursecounter}%
- #4\relax
- \ifnum\recursecounter<#2\relax
- \advance\recursecounter by #3\relax
- \repeat}
-
-\def\dorecurse#1%
- {\dostepwiserecurse{1}{#1}{1}}
-
-\def\doloop
- {\dostepwiserecurse{1}{\maxdimen}{1}}
-
-\def\exitloop
- {\recursecounter=\maxdimen}
-
-%D \macros
-%D {ifundefined,doifdefined,doifundefined,
-%D doifdefinedelse,doifundefinedelse}
-%D
-%D These alteratives are not robust but suitable for simple
-%D usage. The official ones are a bit faster.
-
-\ifnocontextobject \doifdefined \do
-
- \def\ifundefined#1%
- {\expandafter\ifx\csname#1\endcsname\relax}
-
- \def\doifdefinedelse#1#2#3%
- {\expandafter\ifx\csname#1\endcsname\relax#3\else#2\fi}
-
- \def\doifundefinedelse#1#2#3%
- {\expandafter\ifx\csname#1\endcsname\relax#2\else#3\fi}
-
- \def\doifdefined#1#2%
- {\expandafter\ifx\csname#1\endcsname\relax\else#2\fi}
-
- \def\doifundefined#1#2%
- {\expandafter\ifx\csname#1\endcsname\relax#2\fi}
-
-\fi
-
-%D \macros
-%D {doifinstringelse}
-%D
-%D It seems like we end up with more and more macros here.
-%D Sigh.
-
-\ifnocontextobject \doifinstringelse \do
-
- \def\p!doifinstringelse#1#2%
- {\def\pp!doifinstringelse##1#1##2##3\war%
- {\csname if\if##2 at fals\else tru\fi e\endcsname}%
- \expanded{\pp!doifinstringelse#2#1@@\noexpand\war}}
-
- \long\def\doifinstringelse#1#2#3#4%
- {\edef\@@@instring{#1}%
- \@EA\p!doifinstringelse\@EA{\@@@instring}{#2}#3\else#4\fi}
-
-\fi
-
-%D \macros
-%D {twodigitrounding}
-%D
-%D We don't support rounding outside \CONTEXT. Sorry.
-
-\def\twodigitrounding#1{#1}
-
-%D \macros
-%D {lineheight}
-%D
-%D In \CONTEXT\ we have \type{\lineheight}, which in many
-%D cases matches \type {\baselineskip}.
-
-\ifnocontextobject \lineheight \do
-
- \def\lineheight{\baselineskip}
-
-\fi
-
-%D \macros
-%D {dohandletokens}
-%D
-%D The following macro is the simplified version, but good
-%D enough for day to day hacks.
-%D
-%D \starttyping
-%D \dohandletokens some text\with\somemacro
-%D \stoptyping
-
-\ifnocontextobject \dohandletokens \do
-
-\def\dodohandletokens
- {\ifx\next\end \else
- \docommando{\next}%
- \expandafter\dohandletokens
- \fi}
-
-\def\dohandletokens
- {\afterassignment\dodohandletokens\let\next= }
-
-\long\def\handletokens#1\with#2%
- {\let\docommando=#2%
- \dohandletokens#1\end}
-
-\fi
-
-%D Very reduced:
-
-\long\def\appendtoks#1\to#2%
- {\scratchtoks{#1}\expanded{#2{\the#2\the\scratchtoks}}}
-
-%D Well, also handy.
-
-\def\doiffileelse#1#2#3%
- {\immediate\openin\scratchread=#1\relax
- \ifeof\scratchread
- \def\next{#3}%
- \else
- \def\next{#2}%
- \fi
- \immediate\closein\scratchread
- \next}
-
-%D New.
-
-\let\donothing\empty
-
-%D Also new:
-
-\def\letempty #1{\let#1\empty}
-\def\globalletempty#1{\global\let#1\empty}
-
-\def\letvalueempty #1{\expandafter\let\csname#1\endcsname\empty}
-\def\letgvalueempty#1{\global\expandafter\let\csname#1\endcsname\empty}
-
-%D Sigh
-
-\def\settrue #1{\chardef#1\zerocount}
-\def\setfalse#1{\chardef#1\plusone}
-
-\let\newconditional = \setfalse
-\let\ifconditional = \ifcase
-
-%D That's it. Please forget this junk and take a look at how
-%D it should be done.
-
-\StopLatexHack \protect \endinput
Deleted: trunk/Master/texmf-dist/doc/pdftex/samplepdftex/supp-pdf.tex
===================================================================
--- trunk/Master/texmf-dist/doc/pdftex/samplepdftex/supp-pdf.tex 2022-06-07 23:48:43 UTC (rev 63511)
+++ trunk/Master/texmf-dist/doc/pdftex/samplepdftex/supp-pdf.tex 2022-06-08 17:34:24 UTC (rev 63512)
@@ -1,2191 +0,0 @@
-%D \module
-%D [ file=supp-pdf,
-%D version=2004.12.16,
-%D title=\CONTEXT\ Support Macros,
-%D subtitle=\METAPOST\ to \PDF\ conversion,
-%D author=Hans Hagen \& others (see text),
-%D date=\currentdate,
-%D copyright=\PRAGMA]
-%C
-%C This module is part of the \CONTEXT\ macro||package and is
-%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
-%C details.
-
-%D These macros are written as generic as possible. Some
-%D general support macro's are loaded from a small module
-%D especially made for non \CONTEXT\ use. In this module I
-%D use a matrix transformation macro written by Tanmoy
-%D Bhattacharya. Thanks to extensive testing by Sebastian
-%D Ratz I was able to complete this module within reasonable
-%D time. This module has support for \METAPOST\ extensions
-%D built in.
-%D
-%D Daniel H. Luecking came up with a better (more precise)
-%D transformation method. You can recognize his comment by
-%D his initials. (We keep the old code around because it's a
-%D nice illustration on how a module like this evolves.)
-
-% Beware, we cannot use \zeropoint here since it may be
-% defined in the range \dimen 0 - 20 which we happen to use
-% as scratch registers; inside context we may consider
-% using dedicated registers.
-
-% fails: ( ) vect10 9.96265 fshow % \040\040\040\040
-%
-% some optimizations are possible, but we need to be generic
-
-%D First we take care of non||\CONTEXT\ use (newlines needed,
-%D expandafter not -).
-
-\ifx \undefined \writestatus \input supp-mis.tex \relax \fi
-
-\ifx \undefined \convertMPtoPDF \else \expandafter \endinput \fi
-
-\ifx \undefined \StartLatexHack \else \StartLatexHack \fi
-
-%D This module handles some \PDF\ conversion and insertions
-%D topics. By default, the macros use the \PDFTEX\ primitive
-%D \type{\pdfliteral} when available. Since \PDFTEX\ is now the
-%D default engine for \TEX\ distributions, we need a more complex
-%D test.
-
-\writestatus{loading}{Context Support Macros / PDF (2004.03.26)}
-
-\unprotect
-
-\ifx\PDFcode\undefined
- \ifx\pdfliteral\undefined
- \def\PDFcode#1{\special{PDF: #1}}
- \else\ifx\pdfoutput\undefined
- \def\PDFcode#1{\special{PDF: #1}}
- \else\ifcase\pdfoutput
- \def\PDFcode#1{\special{PDF: #1}}
- \else % pdftex as well as in pdf mode
- \let\PDFcode\pdfliteral
- \fi\fi\fi
-\else
- % we probably use context
-\fi
-
-%D First we define a handy constant:
-
-\bgroup \catcode`\%=\@@other \xdef\letterpercent{\string%} \egroup
-
-%D \macros
-%D {pdfimage,pdfimages,pdfclippedimage}
-%D
-%D Starting with pdftex version 14, images are included more
-%D natural to the form embedding. This enables alternative
-%D images to be embedded.
-%D
-%D \starttyping
-%D \pdfimage <optional dimensions> {file}
-%D \pdfimages <optional dimensions> {high res file} {low res file}
-%D \stoptyping
-%D
-%D The first one replaces the pre||version||14 original,
-%D while the latter provides alternative images.
-%D
-%D The next macro is dedicated to Maarten Gelderman, who
-%D needed to paste prepared \PDF\ pages into conference
-%D proceedings.
-%D
-%D \starttyping
-%D \pdfclippedimage <optional dimensions> {file} {l} {r} {t} {b}
-%D \stoptyping
-
-% \ifx\pdftexversion\undefined % no \m!systems for the sake of latex
-% \writestatus{systems}{Why not use pdf(e)TeX binaries?}
-% \protect
-% \expandafter\endinput
-% \fi
-
-\ifx\pdftexversion\undefined \else \ifnum\pdftexversion>13
-
- \def\pdfimage#1#%
- {\dopdfimage{#1}}
-
- \def\dopdfimage#1#2%
- {\immediate\pdfximage#1{#2}%
- \pdfrefximage\pdflastximage}
-
- \def\pdfimages#1#%
- {\dopdfimages{#1}}
-
- \def\dopdfimages#1#2#3%
- {\immediate\pdfximage#1{#2}%
- \immediate\pdfobj
- {[ << /Image \the\pdflastximage\space0 R
- /DefaultForPrinting true >> ]}%
- \immediate\pdfximage#1
- attr {/Alternates \the\pdflastobj\space0 R}{#3}%
- \pdfrefximage\pdflastximage}
-
- \def\pdfclippedimage#1#% specs {file}{left}{right}{top}{bottom}
- {\dopdfclippedimage{#1}}
-
- \def\dopdfclippedimage#1#2#3#4#5#6%
- {\bgroup
- \pdfximage#1{#2}%
- \setbox\scratchbox\hbox
- {\pdfrefximage\pdflastximage}%
- \hsize\wd\scratchbox
- \advance\hsize -#3
- \advance\hsize -#4
- \vsize\ht\scratchbox
- \advance\vsize -#5
- \advance\vsize -#6
- \setbox\scratchbox\vbox to \vsize
- {\vskip-#5\hbox to \hsize{\hskip-#3\box\scratchbox\hss}}%
- \pdfxform\scratchbox
- \pdfrefxform\pdflastxform
- \egroup}
-
-\fi \fi
-
-%D If you want to save a few hash entries, you may prefer the
-%D less readable alternatives, like:
-%D
-%D \starttyping
-%D \def\pdfimage#1#% This one is less readable but needs no additional
-%D {\bgroup % hash entry for the second stage macro.
-%D \def\pdfimage##1%
-%D {\immediate\pdfximage##1{#2}%
-%D \pdfrefximage\pdflastximage\egroup}}
-%D \stoptyping
-
-%D For old times sake we provide a few aliases. These will be
-%D removed some day.
-
-\ifx\pdftexversion\undefined \else \ifnum\pdftexversion>13
-
- \let\pdfform =\pdfxform
- \let\pdflastform=\pdflastxform
- \let\pdfrefform =\pdfrefxform
-
-\fi \fi
-
-%D \macros
-%D {convertPDFtoPDF}
-%D
-%D \PDFTEX\ supports verbatim inclusion of \PDF\ code. The
-%D following macro takes care of inserting externally defined
-%D illustrations in \PDF\ format. According to a suggestion
-%D Tanmoy Bhattacharya posted to the \PDFTEX\ mailing list, we
-%D first skip lines until \type{stream} is reached and then
-%D copy lines until \type{endstream} is encountered. This
-%D scheme only works with vectorized graphics in which no
-%D indirect references to objects are used. Bitmaps also don't
-%D work. Interpreting their specifications is beyond the
-%D current implementation.
-%D
-%D \starttyping
-%D \convertPDFtoPDF
-%D {filename}
-%D {x scale} {y scale}
-%D {x offset } {y offset}
-%D {width} {height}
-%D \stoptyping
-%D
-%D When the scales are set to~1, the last last four values
-%D are the same as the bounding box, e.g.
-%D
-%D \starttyping
-%D \convertPDFtoPDF{mp-pra-1.pdf} {1} {1}{-1bp}{-1bp}{398bp}{398bp}
-%D \convertPDFtoPDF{mp-pra-1.pdf}{.5}{.5} {0bp} {0bp}{199bp}{199bp}
-%D \stoptyping
-%D
-%D Keep in mind, that this kind of copying only works for
-%D pure and valid pdf code (without fonts).
-
-%D The scanning and copying is straightforward and quite fast.
-%D To speed up things we use two constants.
-
-\def\@@PDFstream@@ {stream}
-\def\@@PDFendstream@@ {endstream}
-
-%D \macros
-%D {PDFmediaboxprefered}
-%D
-%D If needed, the macros can scan for the mediabox that
-%D specifies the dimensions and offsets of the graphic. When
-%D we say:
-%D
-%D \starttyping
-%D \PDFmediaboxpreferedtrue
-%D \stoptyping
-%D
-%D the mediabox present in the file superseded the user
-%D specified, already scaled and calculated offset and
-%D dimensions. Beware: the user supplied values are not the
-%D bounding box ones!
-
-%D This code has become obsolete.
-
-% \newif\ifPDFmediaboxprefered
-
-\def\setPDFboundingbox#1#2#3#4#5#6%
- {\dimen0=#1\dimen0=#5\dimen0
- \ScaledPointsToBigPoints{\number\dimen0}\PDFxoffset
- \dimen0=#3\dimen0=#5\dimen0
- \xdef\PDFwidth{\the\dimen0}%
- \dimen0=#2\dimen0=#6\dimen0
- \ScaledPointsToBigPoints{\number\dimen0}\PDFyoffset
- \dimen0=#4\dimen0=#6\dimen0
- \xdef\PDFheight{\the\dimen0}%
- \global\let\PDFxoffset\PDFxoffset
- \global\let\PDFyoffset\PDFyoffset}
-
-\def\setPDFmediabox#1[#2 #3 #4 #5]#6\done
- {\dimen2=#2bp\dimen2=-\dimen2 % \dimen2=-#2bp also works since tex handles --
- \dimen4=#3bp\dimen4=-\dimen4 % \dimen4=-#3bp also works since tex handles --
- \dimen6=#4bp\advance\dimen6 \dimen2
- \dimen8=#5bp\advance\dimen8 \dimen4
- \setPDFboundingbox{\dimen2}{\dimen4}{\dimen6}{\dimen8}\PDFxscale\PDFyscale}
-
-% \def\checkPDFmediabox#1/MediaBox#2#3\done
-% {\ifx#2\relax \else
-% \message{mediabox}%
-% \setPDFmediabox#2#3\done
-% \fi}
-
-%D We use the general macro \type{\doprocessfile} and feed this
-%D with a line handling macro that changes it's behavior when
-%D the stream operators are encountered.
-
-% \def\handlePDFline
-% {\ifx\@@PDFstream@@\fileline
-% \let\doprocessPDFline\copyPDFobject
-% \startPDFtoPDF
-% \else\ifPDFmediaboxprefered
-% \expandafter\checkPDFmediabox\fileline/MediaBox\relax\done
-% \fi\fi}
-
-% \def\copyPDFobject
-% {\ifx\@@PDFendstream@@\fileline
-% \ifPDFmediaboxprefered
-% \let\doprocessPDFline\findPDFmediabox
-% \else
-% \let\doprocessPDFline\relax
-% \fi
-% \else
-% \advance\scratchcounter 1
-% \PDFcode{\fileline}%
-% \fi}
-
-% \def\findPDFmediabox
-% {\expandafter\checkPDFmediabox\fileline/MediaBox\relax\done}
-
-%D The main conversion macro wraps the \PDF\ codes in a box
-%D that is output as an object. The graphics are embedded
-%D in~\type{q} and~\type{Q} and are scaled and positioned using
-%D one transform call (\type{cm}). This saves some additional
-%D scaling.
-
-%D \starttyping
-%D \def\startPDFtoPDF%
-%D {\setbox0=\vbox\bgroup
-%D \message{[PDF to PDF \PDFfilename}%
-%D \forgetall
-%D \scratchcounter=0
-%D \let\stopPDFtoPDF=\dostopPDFtoPDF}
-%D
-%D \def\dostopPDFtoPDF%
-%D {\ifnum\scratchcounter<0 \scratchcounter=1 \fi
-%D \message{(\the\scratchcounter\space lines)]}%
-%D \egroup
-%D \wd0=\PDFwidth
-%D \vbox to \PDFheight
-%D {\forgetall
-%D \vfill
-%D \PDFcode{q}%
-%D \PDFcode{1 0 0 1 \PDFxoffset\space \PDFyoffset\space cm}%
-%D \PDFcode{\PDFxscale\space 0 0 \PDFyscale\space 0 0 cm}%
-%D \box0
-%D \PDFcode{Q}}}
-%D
-%D \def\stopPDFtoPDF%
-%D {\message{[PDF to PDF \PDFfilename\space not found]}}
-%D
-%D \def\convertPDFtoPDF#1#2#3#4#5#6#7%
-%D {\bgroup
-%D \def\PDFfilename{#1}%
-%D \def\PDFxscale {#2}%
-%D \def\PDFyscale {#3}%
-%D \setPDFboundingbox{#4}{#5}{#6}{#7}{1}{1}%
-%D \uncatcodespecials
-%D \endlinechar=-1
-%D \let\doprocessPDFline=\handlePDFline
-%D \doprocessfile\scratchread\PDFfilename\doprocessPDFline
-%D \stopPDFtoPDF
-%D \egroup}
-
-\def\convertPDFtoPDF#1#2#3#4#5#6#7%
- {\message{[PDF to PDF use \string\PDFcode instead]}%
- \vbox{use the direct method instead}}
-
-%D \macros
-%D {dogetPDFmediabox}
-%D
-%D The next macro can be used to find the mediabox of a \PDF\
-%D illustration.
-%D
-%D \starttyping
-%D \dogetPDFmediabox
-%D {filename}
-%D {new dimen}{new dimen}{new dimen}{new dimen}
-%D \stoptyping
-%D
-%D Beware of dimen clashes: this macro uses the 5~default
-%D scratch registers! When no file or mediabox is found, the
-%D dimensions are zeroed.
-
-\def\dogetPDFmediabox#1#2#3#4#5%
- {\bgroup
- \def\PDFxscale{1}%
- \def\PDFyscale{1}%
- \uncatcodespecials
- \endlinechar\minusone
- \def\checkPDFtypepage##1/Type /Page##2##3\done%
- {\ifx##2\relax
- \else\if##2s% accept /Page and /Pages
- \let\doprocessPDFline\findPDFmediabox
- \else
- \let\doprocessPDFline\findPDFmediabox
- \fi\fi}%
- \def\findPDFtypepage
- {\expandafter\checkPDFtypepage\fileline/Type /Page\relax\done}%
- \def\checkPDFmediabox##1/MediaBox##2##3\done%
- {\ifx##2\relax \else
- \setPDFmediabox##2##3\done
- \fileprocessedtrue
- \fi}%
- \def\findPDFmediabox
- {\expandafter\checkPDFmediabox\fileline/MediaBox\relax\done}%
- \let\doprocessPDFline\findPDFtypepage
- \doprocessfile\scratchread{#1}\doprocessPDFline
- \egroup
- \ifx\PDFxoffset\undefined
- #2\zeropoint
- #3\zeropoint
- #4\zeropoint
- #5\zeropoint
- \else
- #2=\PDFxoffset\onebasepoint
- #3=\PDFyoffset\onebasepoint
- #4=\PDFwidth
- #5=\PDFheight
- \fi}
-
-%D \macros
-%D {convertMPtoPDF}
-%D
-%D The next set of macros implements \METAPOST\ to \PDF\
-%D conversion. Because we want to test as fast as possible, we
-%D first define the \POSTSCRIPT\ operators that \METAPOST\
-%D uses. We don't define irrelevant ones, because these are
-%D skipped anyway.
-
-%D The converter can be made a bit faster by replacing the
-%D two test macros (the ones with the many \type {\if's}) by
-%D a call to named branch macros (something \typ {\getvalue
-%D {xPSmoveto}}. For everyday documents with relatively
-%D small graphics the gain in speed can be neglected.
-
-\def \PScurveto {curveto}
-\def \PSlineto {lineto}
-\def \PSmoveto {moveto}
-\def \PSshowpage {showpage}
-\def \PSnewpath {newpath}
-\def \PSfshow {fshow}
-\def \PSclosepath {closepath}
-\def \PSfill {fill}
-\def \PSstroke {stroke}
-\def \PSclip {clip}
-\def \PSrlineto {rlineto}
-\def \PSsetlinejoin {setlinejoin}
-\def \PSsetlinecap {setlinecap}
-\def \PSsetmiterlimit {setmiterlimit}
-\def \PSsetgray {setgray}
-\def \PSsetrgbcolor {setrgbcolor}
-\def \PSsetcmykcolor {setcmykcolor}
-\def \PSsetdash {setdash}
-\def \PSgsave {gsave}
-\def \PSgrestore {grestore}
-\def \PStranslate {translate}
-\def \PSscale {scale}
-\def \PSconcat {concat}
-\def \PSdtransform {dtransform}
-\def \PSsetlinewidth {setlinewidth}
-\def \PSpop {pop}
-
-\def \PSnfont {nfont} % was needed for TUG98 proceedings
-\def \PSspecial {special} % extensions to MetaPost
-
-%D A previous version set \type {%} to ignore, which
-%D simplified the following definitions. At the start of
-%D conversion the percent character was made active again.
-%D Because the whole graphic is one paragraph (there are no
-%D empty lines) this does not give the desired effect. This
-%D went unnoticed untill Scott Pakin sent me a test file
-%D percent characters in a string. So, from now on we have
-%D to prefix the following strings with percentages.
-
-\edef \PSBoundingBox {\letterpercent\letterpercent BoundingBox:}
-\edef \PSHiResBoundingBox {\letterpercent\letterpercent HiResBoundingBox:}
-\edef \PSExactBoundingBox {\letterpercent\letterpercent ExactBoundingBox:}
-\edef \PSMetaPostSpecial {\letterpercent\letterpercent MetaPostSpecial:}
-\edef \PSMetaPostSpecials {\letterpercent\letterpercent MetaPostSpecials:}
-\edef \PSPage {\letterpercent\letterpercent Page:}
-
-%D By the way, the \type {setcmykcolor} operator is not
-%D output by \METAPOST\ but can result from converting the
-%D \cap{RGB} color specifications, as implemented in
-%D \type{supp-mps}.
-
-%D In \POSTSCRIPT\ arguments precede the operators. Due to the
-%D fact that in some translations we need access to those
-%D arguments, and also because sometimes we have to skip them,
-%D we stack them up. The stack is one||dimensional for non path
-%D operators and two||dimensional for operators inside a path.
-%D This is because we have to save the whole path for
-%D (optional) postprocessing. Values are pushed onto the stack
-%D by:
-%D
-%D \starttyping
-%D \setMPargument {value}
-%D \stoptyping
-%D
-%D They can be retrieved by the short named macros:
-%D
-%D \starttyping
-%D \gMPa {number}
-%D \gMPs {number}
-%D \stoptyping
-%D
-%D When scanning a path specification, we also save the
-%D operator, using
-%D
-%D \starttyping
-%D \setMPkeyword {n}
-%D \stoptyping
-%D
-%D The path drawing operators are coded for speed: \type{clip},
-%D \type{stroke}, \type{fill} and \type{fillstroke} become
-%D 1, 2, 3 and~4.
-%D
-%D When processing the path this code can be retrieved
-%D using
-%D
-%D \starttyping
-%D \getMPkeyword % {n}
-%D \stoptyping
-%D
-%D When setting an argument, the exact position on the stack
-%D depends on the current value of the \COUNTERS\
-%D \type{\nofMPsegments} and \type{\nofMParguments}.
-
-\newcount\nofMPsegments
-\newcount\nofMParguments
-
-%D These variables hold the coordinates. The argument part of
-%D the stack is reset by:
-%D
-%D \starttyping
-%D \resetMPstack
-%D \stoptyping
-%D
-%D We use the prefix \type{@@MP} to keep the stack from
-%D conflicting with existing macros. To speed up things a bit
-%D more, we use the constant \type{\@@MP}.
-
-\def\@@MP{@@MP}
-
-\def\setMPargument% #1%
- {\advance\nofMParguments \plusone
- \expandafter\def
- \csname\@@MP\the\nofMPsegments\the\nofMParguments\endcsname} % {#1}
-
-\def\letMPargument
- {\advance\nofMParguments \plusone
- \expandafter\let
- \csname\@@MP\the\nofMPsegments\the\nofMParguments\endcsname}
-
-\def\setMPsequence#1 %
- {\advance\nofMParguments \plusone
- \expandafter\def
- \csname\@@MP\the\nofMPsegments\the\nofMParguments\endcsname{#1}%
- \handleMPsequence}
-
-\def\gMPa#1%
- {\csname\@@MP0\number#1\endcsname}
-
-\def\gMPs#1%
- {\csname\@@MP\the\nofMPsegments\number#1\endcsname}
-
-\def\dogMPa#1%
- {\@EAEAEA\do\csname\@@MP0\number#1\endcsname}
-
-\def\setMPkeyword#1 %
- {\expandafter\def\csname\@@MP\the\nofMPsegments0\endcsname{#1}%
- \advance\nofMPsegments \plusone
- \nofMParguments\zerocount}
-
-\def\getMPkeyword% #1%
- {\csname\@@MP\the\nofMPsegments0\endcsname} % {\csname\@@MP#10\endcsname}
-
-%D When we reset the stack, we can assume that all further
-%D comment is to be ignored and handled in strings.
-%D By redefining the reset macro after the first call, we
-%D save some run time. Only use this macro after all
-%D comments are processed and use the simple alternative
-%D when dealing with comments.
-
-\def\doresetMPstack
- {\nofMParguments\zerocount}
-
-\def\resetMPstack
- {\let\handleMPgraphic\handleMPendgraphic
- \let\resetMPstack\doresetMPstack
- \resetMPstack}
-
-%D The arguments are saved with the preceding command
-%D \type{\do}. By default this command expands to nothing, but
-%D when we deal with strings it's used to strip off the
-%D \type{(} and \type{)}.
-%D
-%D Strings are kind of tricky, because characters can be
-%D passed verbatim \type{(hello)}, by octal number
-%D \type{(\005)} or as command \type{(\()}. We therefore
-%D cannot simply ignore \type{(} and \type{)}, the way we do
-%D with \type{[} and \type{]}. Another complication is that
-%D strings may contain characters that normally have a
-%D special meaning in \TEX, like \type{$} and \type{{}}.
-%D
-%D A previous solution made \type{\} an active character and
-%D let it look ahead for a number or characters. We had to
-%D abandon this scheme because of the need for verbatim
-%D support. The next solution involved some \CATCODE\
-%D trickery but works well.
-
-\def\octalMPcharacter#1#2#3%
- {\char'#1#2#3\relax}
-
-\bgroup
-\catcode`\|=\@@comment
-\catcode`\%=\@@active
-\catcode`\[=\@@active
-\catcode`\]=\@@active
-\catcode`\{=\@@active
-\catcode`\}=\@@active
-\catcode`B=\@@begingroup
-\catcode`E=\@@endgroup
-\gdef\ignoreMPspecials|
- B\let%\letterpercent|
- \def[BE|
- \def]BE|
- \def{BE|
- \def}BEE
-\gdef\obeyMPspecials|
- B\def%B\char 37\relax E|
- \def[B\char 91\relax E|
- \def]B\char 93\relax E|
- \def{B\char123\relax E|
- \def}B\char125\relax EE
-\gdef\setMPspecials|
- B\setnaturalcatcodes
- \catcode`\\=\@@escape
- \catcode`\%=\@@active
- \catcode`\[=\@@active
- \catcode`\]=\@@active
- \catcode`\{=\@@active
- \catcode`\}=\@@active
- \lccode`\-=0 | latex sets this to `\-
- \lccode`\%=`\% | otherwise it's seen as a number
- \def\(B\char40\relax E|
- \def\)B\char41\relax E|
- \def\\B\char92\relax E|
- \def\0B\octalMPcharacter0E|
- \def\1B\octalMPcharacter1E|
- \def\2B\octalMPcharacter2E|
- \def\3B\octalMPcharacter3E|
- \def\4B\octalMPcharacter4E|
- \def\5B\octalMPcharacter5E|
- \def\6B\octalMPcharacter6E|
- \def\7B\octalMPcharacter7E|
- \def\8B\octalMPcharacter8E|
- \def\9B\octalMPcharacter9EE
-\egroup
-
-%D We use the comment symbol as a sort of trigger. Beware!
-%D The whole graphic is seen as on eparagraph, which means
-%D that we cannot change the catcodes in between.
-
-\bgroup
-\catcode`\%=\@@active
-\gdef\startMPscanning{\let%=\startMPconversion}
-\egroup
-
-%D In earlier versions we used the sequence
-%D
-%D \starttyping
-%D \expandafter\handleMPsequence\input filename\relax
-%D \stoptyping
-%D
-%D Persistent problems in \LATEX\ however forced us to use a
-%D different scheme. Every \POSTSCRIPT\ file starts with a
-%D \type{%}, so we temporary make this an active character
-%D that starts the scanning and redefines itself. (The problem
-%D originates in the redefinition by \LATEX\ of the
-%D \type{\input} primitive.)
-
-\def\startMPconversion
- {\ignoreMPspecials
- \handleMPsequence}
-
-%D Here comes the main loop. Most arguments are numbers. This
-%D means that they can be recognized by their \type{\lccode}.
-%D This method saves a lot of processing time. We could
-%D speed up the conversion by handling the \type{path}
-%D seperately.
-
-\def\@EAEAEA{\expandafter\expandafter\expandafter} % to be sure
-
-\def\dohandleMPsequence#1%
- {\ifdone
- \ifcase\lccode`#1\relax
- \@EAEAEA\dohandleMPsequenceA
- \else
- \@EAEAEA\dohandleMPsequenceB
- \fi
- \else
- \@EA\dohandleMPsequenceC
- \fi#1}
-
-%\def\dohandleMPsequenceA#1 %
-% {\setMPargument{#1}%
-% \handleMPsequence}
-
-\let\dohandleMPsequenceA\setMPsequence
-
-\def\dohandleMPsequenceB#1 %
- {\edef\somestring{#1}%
- \ifx\somestring\PSmoveto
- \edef\lastMPmoveX{\gMPa1}%
- \edef\lastMPmoveY{\gMPa2}%
- \PDFcode{\!MPgMPa1 \!MPgMPa2 m}%
- \resetMPstack
- \else\ifx\somestring\PSnewpath
- \let\handleMPsequence\handleMPpath
- \else\ifx\somestring\PSgsave
- \PDFcode{q}%
- \resetMPstack
- \else\ifx\somestring\PSgrestore
- \PDFcode{Q}%
- \resetMPstack
- \else\ifx\somestring\PSdtransform % == setlinewidth
- \let\handleMPsequence\handleMPdtransform
- % after that we will encounter more tokens until setlinewidth+pop
- % or pop+setlinewidth which we catch next; we explicitly need to
- % reset the stack since [] n setdash may follow; a more clever
- % approach would be to read on till the condition is met, but it's
- % the only pop / setlinewidth we will encounter so ...
- \else\ifx\somestring\PSsetlinewidth
- % already handled in dtransform
- \resetMPstack
- \else\ifx\somestring\PSpop
- % already handled in dtransform
- \resetMPstack
- \else\ifx\somestring\PSconcat
- \PDFcode{\gMPa1 \gMPa2 \gMPa3 \gMPa4 \gMPa5 \gMPa6 cm}%
- \resetMPstack
- \else\ifx\somestring\PSsetrgbcolor
- \handleMPrgbcolor
- \resetMPstack
- \else\ifx\somestring\PSsetcmykcolor
- \handleMPcmykcolor
- \resetMPstack
- \else\ifx\somestring\PSsetgray
- \handleMPgraycolor
- \resetMPstack
- \else\ifx\somestring\PStranslate
- \PDFcode{1 0 0 1 \gMPa1 \gMPa2 cm}%
- \resetMPstack
- \else\ifx\somestring\PSsetdash
- \handleMPsetdash
- \resetMPstack
- \else\ifx\somestring\PSsetlinejoin
- \PDFcode{\gMPa1 j}%
- \resetMPstack
- \else\ifx\somestring\PSsetmiterlimit
- \PDFcode{\gMPa1 M}%
- \resetMPstack
- \else\ifx\somestring\PSfshow
- \PDFcode{n}%
- \handleMPfshow
- \resetMPstack
- \else\ifx\somestring\PSsetlinecap
- \PDFcode{\gMPa1 J}%
- \resetMPstack
- \else\ifx\somestring\PSrlineto
- \PDFcode{\!MP\lastMPmoveX\space\!MP\lastMPmoveY\space l S}%
- \resetMPstack
- \else\ifx\somestring\PSscale
- \PDFcode{\gMPa1 0 0 \gMPa2 0 0 cm}%
- \resetMPstack
- \else\ifx\somestring\PSspecial
- \handleMPspecialcommand
- \resetMPstack
- \else
- \handleMPgraphic% {#1}%
- \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
- \handleMPsequence}
-
-\def\dohandleMPsequenceC#1 %
- {\edef\somestring{#1}%
- \handleMPgraphic % {#1}%
- \handleMPsequence}
-
-%D Since colors are not sensitive to transformations, they
-%D are sometimes used for signaling. Therefore, we handle them
-%D separately. The next macro can be redefined if needed.
-
-\def\handleMPrgbcolor
- {\PDFcode{\!MPgMPa1 \!MPgMPa2 \!MPgMPa3 rg
- \!MPgMPa1 \!MPgMPa2 \!MPgMPa3 RG}}
-
-\def\handleMPcmykcolor
- {\PDFcode{\!MPgMPa1 \!MPgMPa2 \!MPgMPa3 \!MPgMPa4 k
- \!MPgMPa1 \!MPgMPa2 \!MPgMPa3 \!MPgMPa4 K}}
-
-\def\handleMPgraycolor
- {\PDFcode{\!MPgMPa1 g
- \!MPgMPa1 G}}
-
-\def\handleMPspotcolor
- {\PDFcode{0 g
- 0 G}}
-
-%D Beginning and ending the graphics is taken care of by the
-%D macro \type{\handleMPgraphic}, which is redefined when
-%D the first graphics operator is met.
-
-\def\handleMPendgraphic % #1%
- {\ifx\somestring\PSshowpage
- \let\handleMPsequence\finishMPgraphic
- \else
- \letMPargument\somestring % {#1}%
- \fi}
-
-\def\handleMPbegingraphic % #1%
- {\ifx\somestring\PSBoundingBox
- \def\handleMPsequence{\handleMPboundingbox1}%
- \else\ifx\somestring\PSHiResBoundingBox
- \def\handleMPsequence{\handleMPboundingbox2}%
- \else\ifx\somestring\PSExactBoundingBox
- \def\handleMPsequence{\handleMPboundingbox3}%
- \else\ifx\somestring\PSshowpage
- \let\handleMPsequence\finishMPgraphic
- \else\ifx\somestring\PSPage
- \let\handleMPsequence\handleMPpage
- \else\ifx\somestring\PSMetaPostSpecials
- \let\handleMPsequence\handleMPspecialscomment
- \else\ifx\somestring\PSMetaPostSpecial
- \let\handleMPsequence\handleMPspecialcomment
- \else
- \letMPargument\somestring % {#1}%
- \fi\fi\fi\fi\fi\fi\fi}
-
-\let\handleMPgraphic=\handleMPbegingraphic
-
-%D We check for three kind of bounding boxes: the normal one
-%D and two high precision ones:
-%D
-%D \starttyping
-%D BoundingBox: llx lly ucx ucy
-%D HiResBoundingBox: llx lly ucx ucy
-%D ExactBoundingBox: llx lly ucx ucy
-%D \stoptyping
-%D
-%D The original as well as the recalculated dimensions are
-%D saved for later use.
-
-\newif\ifskipemptyMPgraphic \skipemptyMPgraphicfalse
-
-\chardef\currentMPboundingbox=0
-
-\def\handleMPboundingbox#1#2 #3 #4 #5
- {\ifnum#1>\currentMPboundingbox
- \xdef\MPllx{#2}\xdef\MPlly{#3}%
- \xdef\MPurx{#4}\xdef\MPury{#5}%
- \dimen0=#2\onepoint
- \dimen0=-\MPxscale\dimen0
- \dimen2=#3\onepoint
- \dimen2=-\MPyscale\dimen2
- \xdef\MPxoffset{\withoutpt\the\dimen0}%
- \xdef\MPyoffset{\withoutpt\the\dimen2}%
- \dimen0=#2\onebasepoint
- \dimen0=-\dimen0
- \dimen2=#3\onebasepoint
- \dimen2=-\dimen2
- \advance\dimen0 #4\onebasepoint
- \dimen0=\MPxscale\dimen0
- \xdef\MPwidth{\the\dimen0}%
- \advance\dimen2 #5\onebasepoint
- \xdef\MPyshift{\the\dimen2}% unscaled
- \dimen2=\MPyscale\dimen2
- \xdef\MPheight{\the\dimen2}%
- \chardef\currentMPboundingbox#1\relax
- \fi
- \doresetMPstack
- \let\handleMPsequence\dohandleMPsequence
- \let\next\handleMPsequence
- \ifskipemptyMPgraphic
- \ifdim\MPheight=\zeropoint\relax\ifdim\MPwidth=\zeropoint\relax
- \def\next{\endinput\finishMPgraphic}%
- \fi\fi
- \fi
- \next}
-
-%D Unless defined otherwise, we simply ignore specialcomments.
-
-\def\handleMPspecialcomment
- {\doresetMPstack
- \let\handleMPsequence\dohandleMPsequence
- \handleMPsequence}
-
-\let\handleMPspecialscomment\handleMPspecialcomment
-
-%D We use the \type{page} comment as a signal that
-%D stackbuilding can be started.
-
-\def\handleMPpage #1 #2
- {\doresetMPstack
- \donetrue
- \let\handleMPsequence\dohandleMPsequence
- \handleMPsequence}
-
-%D The same applies to the special extensions.
-
-\def\handleMPspecialcommand
- {\doresetMPstack
- \let\handleMPsequence\dohandleMPsequence
- \handleMPsequence}
-
-%D \METAPOST\ draws its dots by moving to a location and
-%D invoking \type{0 0 rlineto}. This operator is not
-%D available in \PDF. Our solution is straightforward: we draw
-%D a line from $(current\_x, current\_y)$ to itself. This
-%D means that the arguments of the preceding \type{moveto} have
-%D to be saved.
-
-\def\lastMPmoveX{0}
-\def\lastMPmoveY{0}
-
-%D These saved coordinates are also used when we handle the
-%D texts. Text handling proved to be a bit of a nuisance, but
-%D finally I saw the light. It proved that we also had to
-%D take care of \type{(split arguments)}.
-
-\def\setMPfshowfont#1#2%
- {\font\temp=#1\space at #2\relax\temp}
-
-\let\MPfshowcommand\empty
-
-\def\dohandleMPfshow
- {\bgroup
- \setbox\scratchbox\hbox
- {\obeyMPspecials
- \edef\size{\gMPa\nofMParguments}%
- \ifx\size\PSnfont % round font size (to pt)
- \advance\nofMParguments \minusone
- \expandafter\scratchdimen\gMPa\nofMParguments\onepoint\relax
- \ifdim\scratchdimen<\onepoint
- \def\size{1pt}%
- \else
- \advance\scratchdimen .5\onepoint
- \def\size##1.##2\relax{\def\size{##1pt}}%
- \expandafter\size\the\scratchdimen\relax
- \fi
- \else
- \edef\size{\size bp}%
- \fi
- \advance\nofMParguments \minusone
- %\font\temp=\gMPa\nofMParguments\space at \size
- \let\temp\relax % to be sure
- \setMPfshowfont{\gMPa\nofMParguments}\size
- \advance\nofMParguments \minusone
- \temp
- \MPfshowcommand
- {\ifnum\nofMParguments=\plusone
- \def\do(##1){##1}%
- \dogMPa1%
- \else
- % we need to catch ( a ) (a a a) (\123 \123 \123) etc
- \scratchcounter\plusone
- \def\dodo##1% Andreas Fieger's bug: (\304...)
- {\edef\!!stringa{##1\empty\empty}% and another one: ( 11) -> \ifx 11
- \ifx\!!stringa\MPspacechar\MPspacechar\else\expandafter##1\fi}%
- \def\do(##1{\dodo{##1}}%
- \dogMPa\scratchcounter\MPspacechar
- \let\do\relax
- \loop
- \advance\scratchcounter \plusone
- \ifnum\scratchcounter<\nofMParguments\relax
- \gMPa\scratchcounter\MPspacechar
- \repeat
- \def\do##1){\dodo{##1}}%
- \dogMPa\scratchcounter
- \fi
- \unskip}}%
- %
- % this fails in some versions of pdftex
- %
- % \dimen0=\lastMPmoveY bp
- % \advance\dimen0 by \ht0
- % \ScaledPointsToBigPoints{\number\dimen0}\lastMPmoveY
- % \PDFcode{n q 1 0 0 1 \lastMPmoveX\space\lastMPmoveY\space cm}%
- % \dimen0=\ht0
- % \advance\dimen0 by \dp0
- % \box0
- % \vskip-\dimen0
- % \PDFcode{Q}%
- % \egroup}
- %
- \setbox\scratchbox\hbox
- {\hskip\lastMPmoveX\onebasepoint\raise\lastMPmoveY\onebasepoint\box\scratchbox}%
- \ht\scratchbox\zeropoint
- \dp\scratchbox\zeropoint
- \wd\scratchbox\zeropoint
- \box\scratchbox
- \egroup}
-
-\let\handleMPfshow\dohandleMPfshow % so we can overload this one later
-
-%D You could consider the following definition to be the most
-%D natural one.
-
-% \def\MPspacechar{\space} % normal case
-
-\def\MPspacechar{\char32\relax} % old solution does not work with math
-
-%D However, the following implementation is more robust, since
-%D some fonts have funny visible spaces in the space slot. This
-%D gives a mismatch between the space that \METAPOST\ took into
-%D account and the \quote {natural} space. This only happens in
-%D labels, since \type {btex}||\type {etex} thingies don't have
-%D spaces. This phenomena showed up when preparing the
-%D \METAFUN\ manual, where Palatino fonts are used. We can
-%D safely assume that \METAPOST\ considers \type {\char32} to
-%D be the space.
-
-\def\MPspacechar{\setbox\scratchbox\hbox{\char32}\kern\wd\scratchbox}
-
-%D Well, this does not work with math fonts, so:
-
-\def\MPspacechar{\char32\relax}
-
-%D Most operators are just converted and keep their
-%D arguments. Dashes however need a bit different treatment,
-%D otherwise \PDF\ viewers complain loudly. Another
-%D complication is that one argument comes after the \type{]}.
-%D When reading the data, we simply ignore the array boundary
-%D characters. We save ourselves some redundant newlines and
-%D at the same time keep the output readable by packing the
-%D literals.
-
-\def\handleMPsetdash
- {\bgroup
- \def\somestring{[}%
- \scratchcounter\plusone
- \loop
- \ifnum\scratchcounter<\nofMParguments
- \edef\somestring{\somestring\space\gMPa\scratchcounter}%
- \advance\scratchcounter \plusone
- \repeat
- \edef\somestring{\somestring]\gMPa\scratchcounter\space d}%
- \PDFcode{\somestring}%
- \egroup}
-
-%D The \type{setlinewidth} commands looks a bit complicated. There are
-%D two alternatives, that result in a similar look in both
-%D $x$- and $y$-dorection. As John Hobby says:
-%D
-%D \startnarrower \switchtobodyfont[ss]
-%D \starttyping
-%D x 0 dtransform exch truncate exch idtransform pop setlinewidth
-%D 0 y dtransform truncate idtransform setlinewidth pop
-%D \stoptyping
-%D
-%D These are just fancy versions of \type{x setlinewidth} and
-%D \type{y setlinewidth}. The \type{x 0 ...} form is used if
-%D the path is {\em primarily vertical}. It rounds the width
-%D so that vertical lines come out an integer number of pixels
-%D wide in device space. The \type{0 y ...} form does the same
-%D for paths that are {\em primarily horizontal}. The reason
-%D why I did this is Knuth insists on getting exactly the
-%D widths \TEX\ intends for the horizontal and vertical rules
-%D in \type{btex...etex} output. (Note that PostScript scan
-%D conversion rules cause a horizontal or vertical line of
-%D integer width $n$ in device space to come out $n+1$ pixels
-%D wide, regardless of the phase relative to the pixel grid.)
-%D \stopnarrower
-%D
-%D The common operator in these sequences is \type{dtransform},
-%D so we can use this one to trigger setting the linewidth.
-
-\def\handleMPdtransform
- {\ifdim\gMPa1\onepoint>\zeropoint
- \PDFcode{\gMPa1 w}%
- \def\next##1 ##2 ##3 ##4 ##5 ##6 {\handleMPsequence}%
- \else
- \PDFcode{\gMPa2 w}%
- \def\next##1 ##2 ##3 ##4 {\handleMPsequence}%
- \fi
- \let\handleMPsequence\dohandleMPsequence
- \resetMPstack
- \next}
-
-%D The most complicated command is \type{concat}. \METAPOST\
-%D applies this operator to \type{stroke}. At that moment the
-%D points set by \type{curveto} and \type{moveto}, are already
-%D fixed. In \PDF\ however the \type{cm} operator affects the
-%D points as well as the pen (stroke). Like more \PDF\
-%D operators, \type{cm} is defined in a bit ambiguous way.
-%D The only save route for non||circular penshapes, is saving
-%D the path, recalculating the points and applying the
-%D transformation matrix in such a way that we can be sure
-%D that its behavior is well defined. This comes down to
-%D inverting the path and applying \type{cm} to that path as
-%D well as the pen. This all means that we have to save the
-%D path.
-
-%D In \METAPOST\ there are three ways to handle a path $p$:
-%D
-%D \starttyping
-%D draw p; fill p; filldraw p;
-%D \stoptyping
-%D
-%D The last case outputs a \type{gsave fill grestore} before
-%D \type{stroke}. Handling the path outside the main loops
-%D saves about 40\% run time.\footnoot{We can save some more by
-%D following the \METAPOST\ output routine, but for the moment
-%D we keep things simple.} Switching between the main loop and
-%D the path loop is done by means of the recursely called
-%D macro \type{\handleMPsequence}.
-
-\def\handleMPpath
- {\chardef\finiMPpath0
- \let\closeMPpath\relax
- \let\flushMPpath\flushnormalMPpath
- \resetMPstack
- \nofMPsegments\plusone
- \let\handleMPsequence\dohandleMPpath
- \dohandleMPpath}
-
-%D Most paths are drawn with simple round pens. Therefore we've
-%D split up the routine in two.
-
-\def\flushnormalMPsegment
- {\ifcase\getMPkeyword\relax
- \PDFcode{\!MPgMPs1 \!MPgMPs2 l}%
- \or
- \PDFcode{\!MPgMPs1 \!MPgMPs2 \!MPgMPs3 \!MPgMPs4 \!MPgMPs5 \!MPgMPs6 c}%
- \or
- \PDFcode{\!MP\lastMPmoveX\space\!MP\lastMPmoveY\space l S}%
- \or
- \edef\lastMPmoveX{\gMPs1}% evt \!MP here
- \edef\lastMPmoveY{\gMPs2}%
- \PDFcode{\!MP\lastMPmoveX\space \!MP\lastMPmoveY\space m}%
- \fi}
-
-\def\flushconcatMPsegment
- {\ifcase\getMPkeyword\relax
- \doMPconcat{\gMPs1}\a{\gMPs2}\b%
- \PDFcode{\!MP\a\space\!MP\b\space l}%
- \or
- \doMPconcat{\gMPs1}\a{\gMPs2}\b%
- \doMPconcat{\gMPs3}\c{\gMPs4}\d%
- \doMPconcat{\gMPs5}\e{\gMPs6}\f%
- \PDFcode{\!MP\a\space\!MP\b\space
- \!MP\c\space\!MP\d\space
- \!MP\e\space\!MP\f\space c}%
- \or
- \bgroup
- \noMPtranslate
- \doMPconcat\lastMPmoveX\a\lastMPmoveY\b%
- \PDFcode{\!MP\a\space\!MP\b\space l S}%
- \egroup
- \or
- \edef\lastMPmoveX{\gMPs1}%
- \edef\lastMPmoveY{\gMPs2}%
- \doMPconcat\lastMPmoveX\a\lastMPmoveY\b%
- \PDFcode{\!MP\a\space\!MP\b\space m}%
- \fi}
-
-% \def\flushnormalMPpath
-% {\scratchcounter\nofMPsegments
-% \nofMPsegments\plusone
-% \loop
-% \flushnormalMPsegment
-% \advance\nofMPsegments \plusone
-% \ifnum\nofMPsegments<\scratchcounter
-% \repeat}
-%
-% \def\flushconcatMPpath
-% {\scratchcounter\nofMPsegments
-% \nofMPsegments\plusone
-% \loop
-% \flushconcatMPsegment
-% \advance\nofMPsegments \plusone
-% \ifnum\nofMPsegments<\scratchcounter
-% \repeat}
-%
-% an alternative is presented below: (no \def assignment)
-
-\def\doflushsomeMPpath
- {\dodoflushsomeMPpath
- \advance\nofMPsegments \plusone
- \ifnum\nofMPsegments<\scratchcounter
- \expandafter\doflushsomeMPpath
- \fi}
-
-\def\flushsomeMPpath
- {\scratchcounter\nofMPsegments
- \nofMPsegments\plusone
- \doflushsomeMPpath}
-
-\def\flushnormalMPpath{\let\dodoflushsomeMPpath\flushnormalMPsegment\flushsomeMPpath}
-
-%OLD \def\flushconcatMPpath{\let\dodoflushsomeMPpath\flushconcatMPsegment\flushsomeMPpath}
-
-%NEW pre-calculate 1/D so it needn't be repeated for each control point.
-
-\def\flushconcatMPpath
- {\MPreciprocaldeterminant
- \let\dodoflushsomeMPpath\flushconcatMPsegment\flushsomeMPpath}
-
-%D The transformation of the coordinates is handled by one of
-%D the macros Tanmoy posted to the \PDFTEX\ mailing list.
-%D I rewrote and optimized the original macro to suit the other
-%D macros in this module.
-%D
-%D \starttyping
-%D \doMPconcat {x position} \xresult {y position} \yresult
-%D \stoptyping
-%D
-%D By setting the auxiliary \DIMENSIONS\ \type{\dimen0} upto
-%D \type{\dimen10} only once per path, we save over 20\% run
-%D time. Some more speed was gained by removing some parameter
-%D passing. These macros can be optimized a bit more by using
-%D more constants. There is however not much need for further
-%D optimization because penshapes usually are round and
-%D therefore need no transformation. Nevertheless we move the
-%D factor to the outer level and use a bit different \type{pt}
-%D removal macro. Although the values represent base points,
-%D we converted them to pure points, simply because those can
-%D be converted back.
-
-%OLD \mathchardef\MPconcatfactor=256 % beware don't remove spaces before it
-
-%OLD \def\doMPreducedimen#1
-%OLD {\count0\MPconcatfactor
-%OLD \advance\dimen#1 \ifdim\dimen#1>\zeropoint .5\else -.5\fi\count0
-%OLD \divide\dimen#1 \count0\relax}
-
-%OLD % too inaccurate (see old pragma logo)
-%OLD
-%OLD \def\doMPreducedimen#1
-%OLD {\count0=\MPconcatfactor
-%OLD \divide\dimen#1 \count0\relax}
-
-%OLD \def\doMPreducedimen#1
-%OLD {\advance\dimen#1 \ifdim\dimen#1>\zeropoint .5\else -.5\fi\MPconcatfactor
-%OLD \divide\dimen#1 \MPconcatfactor}
-
-%D The transformation code is rewritten by Daniel H. Luecking who
-%D describes his patch as follows:
-%D
-%D We would like to divide 1 by $X4, but all divisions are integer so
-%D for accuracy we want to convert to large integers and make sure the
-%D integer quotient has as many significant digits as possible. Thus we
-%D need to replace $1/X$ with $M/N$ where $N$ is as large as possible
-%D and $M/N$ is as large as possible. Also for simplicity $M$ should be
-%D a power of 2. So we make $M = 2^{30}$ \footnote{$2^{31} - 1$ is the
-%D largest legal integer. Using it (and simply ignoring the inaccuracy
-%D caused by $-1$) turns out to be at least as accurate in all cases,
-%D and more accurate in some.} (largest legal power of 2) and adjust
-%D $X4 downward (if necessary) to the the range $1-2^{16}$. This gives
-%D at least 15 significant binary digits, (almost as accurate as
-%D \METAPOST\ for numbers near 1) or almost 5 significant figures
-%D (decimal).
-
-\newcount\MPscratchCnt
-\newdimen\MPscratchDim % will be assigned global
-
-\def\MPadjustdimen % sets \MPscratchDim and \MPscratchCnt
- {\MPscratchCnt\zerocount
- \doMPadjustdimen}
-
-\def\doMPadjustdimen
- {\ifdim\MPscratchDim>\onepoint
- \divide\MPscratchDim 2
- \advance\MPscratchCnt \plusone
- \expandafter\doMPadjustdimen
- \fi}
-
-%OLD \def\doMPexpanddimen#1
-%OLD {\multiply\dimen#1 \MPconcatfactor\relax}
-
-%D DHL: When viewed as an integer, $1 \hbox{pt}=2^{16}$ so $2^{32}/X$
-%D is the right way to do $(1 \hbox{pt})/(X \hbox{pt})$ and get the
-%D answer in points. But we are limited to $2^{30}/X$. However, we
-%D actually do $[ 2^{30} / (X/2^K) ]*2^{2-K}$ where $K$ is the number
-%D of halvings it takes to bring $X4 below $1 \hbox{pt}$. If $K$ is 0
-%D or 1 we readjust by multiplying by 4 or 2, otherwise by halving
-%D $(K-2)$ times \type {\MPscratchCnt} holds the value of $K$ from
-%D \type {\MPadjustdimen}.
-
-\def\MPreadjustdimen % acts on \MPscratchDim and MPscratchCnt
- {\ifcase\MPscratchCnt
- \multiply\MPscratchDim 4
- \or
- \multiply\MPscratchDim 2
- \else
- \expandafter\doMPreadjustdimen
- \fi}
-
-\def\doMPreadjustdimen
- {\ifnum\MPscratchCnt > 2
- \divide\MPscratchDim 2
- \advance\MPscratchCnt \minusone
- \expandafter\doMPreadjustdimen
- \fi}
-
-\def\MPreciprocaldeterminant
- {\MPscratchDim\withoutpt\the\dimen0 \dimen6 % s_x*s_y
- \advance\MPscratchDim - \withoutpt\the\dimen2 \dimen4 % s_x*s_y - r_x*r_y
- \ifdim\MPscratchDim<\zeropoint % we need a positive dimension
- \MPscratchDim-\MPscratchDim % for \MPadjustdimen
- \doMPreciprocal
- \MPscratchDim-\MPscratchDim
- \else
- \doMPreciprocal
- \fi}
-
-\newcount\MPnumerator \MPnumerator = 1073741824 % 2^{30}
-
-% todo: dimexpr
-
-\def\doMPreciprocal % replace \MPscratchDim with its reciprocal
- {\ifdim\MPscratchDim=\onepoint \else
- \MPadjustdimen
- \scratchcounter\MPnumerator
- \divide\scratchcounter\MPscratchDim
- \MPscratchDim1\scratchcounter % 1 needed !
- \MPreadjustdimen
- \fi}
-
-%OLD \def\presetMPconcat
-%OLD {\dimen 0=\gMPs1\onepoint \doMPreducedimen 0 % r_x
-%OLD \dimen 2=\gMPs2\onepoint \doMPreducedimen 2 % s_x
-%OLD \dimen 4=\gMPs3\onepoint \doMPreducedimen 4 % s_y
-%OLD \dimen 6=\gMPs4\onepoint \doMPreducedimen 6 % r_y
-%OLD \dimen 8=\gMPs5\onepoint \doMPreducedimen 8 % t_x
-%OLD \dimen10=\gMPs6\onepoint \doMPreducedimen10 } % t_y
-%OLD
-%OLD \def\presetMPscale
-%OLD {\dimen 0=\gMPs1\onepoint \doMPreducedimen 0
-%OLD \dimen 2 \zeropoint
-%OLD \dimen 4 \zeropoint
-%OLD \dimen 6=\gMPs2\onepoint \doMPreducedimen 6
-%OLD \dimen 8 \zeropoint
-%OLD \dimen10 \zeropoint}
-
-\def\presetMPconcat
- {\dimen 0=\gMPs1\onepoint % s_x
- \dimen 2=\gMPs2\onepoint % r_x
- \dimen 4=\gMPs3\onepoint % r_y
- \dimen 6=\gMPs4\onepoint % s_y
- \dimen 8=\gMPs5\onepoint % t_x
- \dimen10=\gMPs6\onepoint} % t_y
-
-\def\presetMPscale
- {\dimen 0=\gMPs1\onepoint
- \dimen 2 \zeropoint
- \dimen 4 \zeropoint
- \dimen 6=\gMPs2\onepoint
- \dimen 8 \zeropoint
- \dimen10 \zeropoint}
-
-\def\noMPtranslate % use this one grouped
- {\dimen 8 \zeropoint % t_x
- \dimen10 \zeropoint} % t_y
-
-%D \starttyping
-%D \def\doMPconcat#1#2#3#4%
-%D {\dimen12=#1 pt \doMPreducedimen12 % p_x
-%D \dimen14=#3 pt \doMPreducedimen14 % p_y
-%D %
-%D \dimen16 \dimen 0
-%D \multiply \dimen16 \dimen 6
-%D \dimen20 \dimen 2
-%D \multiply \dimen20 \dimen 4
-%D \advance \dimen16 -\dimen20
-%D %
-%D \dimen18 \dimen12
-%D \multiply \dimen18 \dimen 6
-%D \dimen20 \dimen14
-%D \multiply \dimen20 \dimen 4
-%D \advance \dimen18 -\dimen20
-%D \dimen20 \dimen 4
-%D \multiply \dimen20 \dimen10
-%D \advance \dimen18 \dimen20
-%D \dimen20 \dimen 6
-%D \multiply \dimen20 \dimen 8
-%D \advance \dimen18 -\dimen20
-%D %
-%D \multiply \dimen12 -\dimen 2
-%D \multiply \dimen14 \dimen 0
-%D \advance \dimen12 \dimen14
-%D \dimen20 \dimen 2
-%D \multiply \dimen20 \dimen 8
-%D \advance \dimen12 \dimen20
-%D \dimen20 \dimen 0
-%D \multiply \dimen20 \dimen10
-%D \advance \dimen12 -\dimen20
-%D %
-%D \doMPreducedimen16
-%D \divide \dimen18 \dimen16 \doMPexpanddimen18
-%D \divide \dimen12 \dimen16 \doMPexpanddimen12
-%D %
-%D \edef#2{\withoutpt\the\dimen18}% % p_x^\prime
-%D \edef#4{\withoutpt\the\dimen12}} % p_y^\prime
-%D \stoptyping
-
-%D The following optimization resulted from some tests by
-%D and email exchanges with Sanjoy Mahajan.
-%D
-%D \starttyping
-%D \def\doMPconcat#1#2#3#4%
-%D {\dimen12=#1 pt \doMPreducedimen12 % p_x
-%D \dimen14=#3 pt \doMPreducedimen14 % p_y
-%D %
-%D \dimen16 \dimen 0
-%D \multiply \dimen16 \dimen 6
-%D \dimen20 \dimen 2
-%D \multiply \dimen20 \dimen 4
-%D \advance \dimen16 -\dimen20
-%D %
-%D \dimen18 \dimen12
-%D \multiply \dimen18 \dimen 6
-%D \dimen20 \dimen14
-%D \multiply \dimen20 \dimen 4
-%D \advance \dimen18 -\dimen20
-%D \dimen20 \dimen 4
-%D \multiply \dimen20 \dimen10
-%D \advance \dimen18 \dimen20
-%D \dimen20 \dimen 6
-%D \multiply \dimen20 \dimen 8
-%D \advance \dimen18 -\dimen20
-%D %
-%D \multiply \dimen12 -\dimen 2
-%D \multiply \dimen14 \dimen 0
-%D \advance \dimen12 \dimen14
-%D \dimen20 \dimen 2
-%D \multiply \dimen20 \dimen 8
-%D \advance \dimen12 \dimen20
-%D \dimen20 \dimen 0
-%D \multiply \dimen20 \dimen10
-%D \advance \dimen12 -\dimen20
-%D %
-%D %\ifdim\dimen16>1pt % oeps, can be < 1pt too
-%D \ifdim\dimen16=1pt \else
-%D \ifdim\dimen16>\MPconcatfactor pt
-%D \doMPreducedimen16
-%D \divide \dimen18 \dimen16 \doMPexpanddimen18
-%D \divide \dimen12 \dimen16 \doMPexpanddimen12
-%D \else
-%D \divide \dimen18 \dimen16 \doMPexpanddimen18 \doMPexpanddimen18
-%D \divide \dimen12 \dimen16 \doMPexpanddimen12 \doMPexpanddimen12
-%D \fi
-%D \fi
-%D %
-%D \edef#2{\withoutpt\the\dimen18}% % p_x^\prime
-%D \edef#4{\withoutpt\the\dimen12}} % p_y^\prime
-%D \stoptyping
-%D
-%D But, this one is still too inaccurate, so we now have:
-
-% \def\doMPconcat#1#2#3#4%
-% {\dimen12=#1pt % p_x
-% \dimen14=#3pt % p_y
-% %
-% % we should test for >-1024 too, but for the moment take the gamble
-% \chardef\MPfactor1\ifdim\dimen12<1024pt \ifdim\dimen14<1024pt 6\fi\fi
-% %
-% \multiply\dimen12 \MPfactor
-% \multiply\dimen14 \MPfactor
-% %
-% \doMPreducedimen12
-% \doMPreducedimen14
-% %
-% \dimen16 \dimen 0
-% \multiply \dimen16 \dimen 6
-% \dimen20 \dimen 2
-% \multiply \dimen20 \dimen 4
-% \advance \dimen16 -\dimen20
-% %
-% \dimen18 \dimen12
-% \multiply \dimen18 \dimen 6
-% \dimen20 \dimen14
-% \multiply \dimen20 \dimen 4
-% \advance \dimen18 -\dimen20
-% \dimen20 \dimen 4
-% \multiply \dimen20 \dimen10
-% \advance \dimen18 \dimen20
-% \dimen20 \dimen 6
-% \multiply \dimen20 \dimen 8
-% \advance \dimen18 -\dimen20
-% %
-% \multiply \dimen12 -\dimen 2
-% \multiply \dimen14 \dimen 0
-% \advance \dimen12 \dimen14
-% \dimen20 \dimen 2
-% \multiply \dimen20 \dimen 8
-% \advance \dimen12 \dimen20
-% \dimen20 \dimen 0
-% \multiply \dimen20 \dimen10
-% \advance \dimen12 -\dimen20
-% %
-% \ifdim\dimen16=1pt \else
-% \ifdim\dimen16>\MPconcatfactor pt
-% \doMPreducedimen16
-% \divide \dimen18 \dimen16 \doMPexpanddimen18
-% \divide \dimen12 \dimen16 \doMPexpanddimen12
-% \else
-% \divide \dimen18 \dimen16 \doMPexpanddimen18 \doMPexpanddimen18
-% \divide \dimen12 \dimen16 \doMPexpanddimen12 \doMPexpanddimen12
-% \fi
-% \fi
-% %
-% \divide\dimen18 \MPfactor
-% \divide\dimen12 \MPfactor
-% %
-% \edef#2{\withoutpt\the\dimen18}% % p_x^\prime
-% \edef#4{\withoutpt\the\dimen12}} % p_y^\prime
-
-%D We cannot use \type {\beginETEX} here since in plain we
-%D get \type {\outer} problems, sigh.
-
-%OLD \beginTEX
-%OLD
-%OLD \def\MPcriteriumA {512pt} % scale
-%OLD \def\MPcriteriumB {2pt} % scale
-%OLD
-%OLD \endTEX
-%OLD
-%OLD \ifx\MPcriteriumA\undefined
-%OLD
-%OLD \newdimen\MPcriteriumA \MPcriteriumA=512pt
-%OLD \newdimen\MPcriteriumB \MPcriteriumB= 2pt
-%OLD
-%OLD \fi
-
-%OLD \def\doMPconcat#1#2#3#4%
-%OLD {\dimen12=#1pt % p_x
-%OLD \dimen14=#3pt % p_y
-%OLD %
-%OLD \chardef\MPfactor\zerocount
-%OLD \ifdim\dimen4<\MPcriteriumB\ifdim\dimen4>-\MPcriteriumB
-%OLD \ifdim\dimen6<\MPcriteriumB\ifdim\dimen6>-\MPcriteriumB
-%OLD \ifdim\dimen8<\MPcriteriumB\ifdim\dimen8>-\MPcriteriumB
-%OLD \ifdim\dimen10<\MPcriteriumB\ifdim\dimen10>-\MPcriteriumB
-%OLD \chardef\MPfactor\plusone
-%OLD \fi\fi
-%OLD \fi\fi
-%OLD \fi\fi
-%OLD \fi\fi
-%OLD \ifcase\MPfactor % spurious 0 removed
-%OLD \chardef\MPfactor\plusone
-%OLD \ifdim\dimen12<\MPcriteriumA\ifdim\dimen12>-\MPcriteriumA
-%OLD \ifdim\dimen14<\MPcriteriumA\ifdim\dimen14>-\MPcriteriumA
-%OLD \chardef\MPfactor16
-%OLD \fi\fi
-%OLD \fi\fi
-%OLD \fi
-%OLD %
-%OLD \multiply\dimen12 \MPfactor
-%OLD \multiply\dimen14 \MPfactor
-%OLD %
-%OLD \doMPreducedimen12
-%OLD \doMPreducedimen14
-%OLD %
-%OLD \dimen16 \dimen 0
-%OLD \multiply \dimen16 \dimen 6
-%OLD \dimen20 \dimen 2
-%OLD \multiply \dimen20 \dimen 4
-%OLD \advance \dimen16 -\dimen20
-%OLD %
-%OLD \dimen18 \dimen12
-%OLD \multiply \dimen18 \dimen 6
-%OLD \dimen20 \dimen14
-%OLD \multiply \dimen20 \dimen 4
-%OLD \advance \dimen18 -\dimen20
-%OLD \dimen20 \dimen 4
-%OLD \multiply \dimen20 \dimen10
-%OLD \advance \dimen18 \dimen20
-%OLD \dimen20 \dimen 6
-%OLD \multiply \dimen20 \dimen 8
-%OLD \advance \dimen18 -\dimen20
-%OLD %
-%OLD \multiply \dimen12 -\dimen 2
-%OLD \multiply \dimen14 \dimen 0
-%OLD \advance \dimen12 \dimen14
-%OLD \dimen20 \dimen 2
-%OLD \multiply \dimen20 \dimen 8
-%OLD \advance \dimen12 \dimen20
-%OLD \dimen20 \dimen 0
-%OLD \multiply \dimen20 \dimen10
-%OLD \advance \dimen12 -\dimen20
-%OLD %
-%OLD \ifdim\dimen16=\onepoint \else
-%OLD \ifdim\dimen16>\MPconcatfactor \onepoint \relax
-%OLD \doMPreducedimen16
-%OLD \divide \dimen18 \dimen16 \doMPexpanddimen18
-%OLD \divide \dimen12 \dimen16 \doMPexpanddimen12
-%OLD \else
-%OLD \divide \dimen18 \dimen16 \doMPexpanddimen18 \doMPexpanddimen18
-%OLD \divide \dimen12 \dimen16 \doMPexpanddimen12 \doMPexpanddimen12
-%OLD \fi
-%OLD \fi
-%OLD %
-%OLD \divide\dimen18 \MPfactor
-%OLD \divide\dimen12 \MPfactor
-%OLD %
-%OLD \edef#2{\withoutpt\the\dimen18}% % p_x^\prime
-%OLD \edef#4{\withoutpt\the\dimen12}} % p_y^\prime
-
-%D DHL: Ideally, $r_x$, $r_y$, $s_x4, $s_y$ should be in macros, not
-%D dimensions (they are scalar quantities after all, not lengths). I
-%D suppose the authors decided to do calculations with integer
-%D arithmetic instead of using real factors because it's faster.
-%D However, the actual macros test slower, possibly because I've
-%D omitted three nested loops. In my test files, my approach is more
-%D accurate. It is also far simpler and overflow does not seem to be a
-%D significant concern. The scale factors written by Metapost are (?)
-%D always $<=1$ (it scales coordinates internally) and coordinates are
-%D always likely to be less than \type {\maxdimen}.
-%D
-%D If this should ever cause problems, the scale factors can be reduced.
-
-\def\doMPconcat#1#2#3#4%
- {\dimen12=#1pt % p_x % #1\onepoint
- \dimen14=#3pt % p_y % #3\onepoint
- \advance\dimen12 -\dimen8 % p_x - t_x
- \advance\dimen14 -\dimen10 % p_y - t_y
- \dimen18=\withoutpt\the\dimen6 \dimen12 % s_y(p_x - t_x)
- \advance\dimen18 -\withoutpt\the\dimen4 \dimen14 % - r_y(p_y-t_y)
- \dimen14=\withoutpt\the\dimen0 \dimen14 % s_x(p_y-t_y)
- \advance\dimen14 -\withoutpt\the\dimen2 \dimen12 % - r_x(p_x-t_x)
- % \MPscratchDim contains precomputed 1/D:
- \dimen18=\withoutpt\the\MPscratchDim \dimen18
- \dimen14=\withoutpt\the\MPscratchDim \dimen14
- \edef#2{\withoutpt\the\dimen18}% % p_x^\prime
- \edef#4{\withoutpt\the\dimen14}} % p_y^\prime
-
-%D One reason for Daniel to write this patch was that at small sizes
-%D the accuracy was less than optimal. Here is a test that demonstrates
-%D that his alternative is pretty good:
-%D
-%D \startlinecorrection
-%D \startMPcode
-%D for i = 5cm,1cm,5mm,1mm,.5mm,.1mm,.01mm :
-%D draw fullcircle scaled i withpen pencircle xscaled (i/10) yscaled (i/20) rotated 45 ;
-%D endfor ;
-%D \stopMPcode
-%D \stoplinecorrection
-
-%D The following explanation of the conversion process was
-%D posted to the \PDFTEX\ mailing list by Tanmoy. The original
-%D macro was part of a set of macro's that included sinus and
-%D cosinus calculations as well as scaling and translating. The
-%D \METAPOST\ to \PDF\ conversion however only needs
-%D transformation.
-
-%M \start \switchtobodyfont [ss]
-
-%D Given a point $(U_x, U_y)$ in user coordinates, the business
-%D of \POSTSCRIPT\ is to convert it to device space. Let us say
-%D that the device space coordinates are $(D_x, D_y)$. Then, in
-%D \POSTSCRIPT\ $(D_x, D_y)$ can be written in terms of
-%D $(U_x, U_y)$ in matrix notation, either as
-%D
-%D \placeformula
-%D \startformula
-%D \pmatrix{D_x&D_y&1\cr} = \pmatrix{U_x&U_y&1\cr}
-%D \pmatrix{s_x&r_x&0\cr
-%D r_y&s_y&0\cr
-%D t_x&t_y&1\cr}
-%D \stopformula
-%D
-%D or
-%D
-%D \placeformula
-%D \startformula
-%D \pmatrix{D_x\cr D_y\cr 1} = \pmatrix{s_x&r_y&t_x\cr
-%D r_x&s_y&t_y\cr
-%D 0 &0 &1 \cr}
-%D \pmatrix{U_x\cr
-%D U_y\cr
-%D 1 \cr}
-%D \stopformula
-%D
-%D both of which is a shorthand for the same set of equations:
-%D
-%D \placeformula
-%D \startformula
-%D D_x = s_x U_x + r_y U_y + t_x
-%D \stopformula
-%D
-%D \placeformula
-%D \startformula
-%D D_y = r_x U_x + s_y U_y + t_y
-%D \stopformula
-%D
-%D which define what is called an `affine transformation'.
-%D
-%D \POSTSCRIPT\ represents the `transformation matrix' as a
-%D six element matrix instead of a $3\times 3$ array because
-%D three of the elements are always~0, 0 and~1. Thus the above
-%D transformation is written in postscript as $[s_x\, r_x\,
-%D r_y\, s_y\, t_x\, t_y]$. However, when doing any
-%D calculations, it is useful to go back to the original
-%D matrix notation (whichever: I will use the second) and
-%D continue from there.
-%D
-%D As an example, if the current transformation matrix is
-%D $[s_x\, r_x\, r_y\, s_y\, t_x\, t_y]$ and you say \typ{[a b
-%D c d e f] concat}, this means:
-%D
-%D \startnarrower
-%D Take the user space coordinates and transform them to an
-%D intermediate set of coordinates using array $[a\, b\, c\, d\,
-%D e\, f]$ as the transformation matrix.
-%D
-%D Take the intermediate set of coordinates and change them to
-%D device coordinates using array $[s_x\, r_x\, r_y\, s_y\, t_x\, t_y]$
-%D as the transformation matrix.
-%D \stopnarrower
-%D
-%D Well, what is the net effect? In matrix notation, it is
-%D
-%D \placeformula
-%D \startformula
-%D \pmatrix{I_x\cr I_y\cr 1\cr} = \pmatrix{a&c&e\cr
-%D b&d&f\cr
-%D 0&0&1\cr}
-%D \pmatrix{U_x\cr
-%D U_y\cr
-%D 1 \cr}
-%D \stopformula
-%D
-%D \placeformula
-%D \startformula
-%D \pmatrix{D_y\cr D_y\cr 1\cr} = \pmatrix{s_x&r_y&t_x\cr
-%D r_x&s_y&t_y\cr
-%D 0 &0 &1 \cr}
-%D \pmatrix{I_x\cr
-%D I_y\cr
-%D 1 \cr}
-%D \stopformula
-%D
-%D where $(I_x, I_y)$ is the intermediate coordinate.
-%D
-%D Now, the beauty of the matrix notation is that when there is
-%D a chain of such matrix equations, one can always compose
-%D them into one matrix equation using the standard matrix
-%D composition law. The composite matrix from two matrices can
-%D be derived very easily: the element in the $i$\high{th}
-%D horizontal row and $j$\high{th} vertical column is
-%D calculated by`multiplying' the $i$\high{th} row of the first
-%D matrix and the $j$\high{th} column of the second matrix (and
-%D summing over the elements). Thus, in the above:
-%D
-%D \placeformula
-%D \startformula
-%D \pmatrix{D_x\cr D_y\cr 1} = \pmatrix{s_x^\prime&r_y^\prime&t_x^\prime\cr
-%D r_x^\prime&s_y^\prime&t_y^\prime\cr
-%D 0 &0 &0 \cr}
-%D \pmatrix{U_x\cr
-%D U_y\cr
-%D 1 \cr}
-%D \stopformula
-%D
-%D with
-%D
-%D \placeformula
-%D \startformula
-%D \eqalign
-%D {s_x^\prime & = s_x a + r_y b \cr
-%D r_x^\prime & = r_x a + s_y b \cr
-%D r_y^\prime & = s_x c + r_y d \cr
-%D s_y^\prime & = r_x c + s_y d \cr
-%D t_x^\prime & = s_x e + r_y f + t_x \cr
-%D t_y^\prime & = r_x e + s_y f + t_y \cr}
-%D \stopformula
-
-%D In fact, the same rule is true not only when one is going
-%D from user coordinates to device coordinates, but whenever
-%D one is composing two `transformations' together
-%D (transformations are `associative'). Note that the formula
-%D is not symmetric: you have to keep track of which
-%D transformation existed before (i.e.\ the equivalent of
-%D $[s_x\, r_x\, r_y\, s_y\, t_x\, t_y]$) and which was
-%D specified later (i.e.\ the equivalent of $[a\, b\, c\, d\,
-%D e\, f]$). Note also that the language can be rather
-%D confusing: the one specified later `acts earlier',
-%D converting the user space coordinates to intermediate
-%D coordinates, which are then acted upon by the pre||existing
-%D transformation. The important point is that order of
-%D transformation matrices cannot be flipped (transformations
-%D are not `commutative').
-%D
-%D Now what does it mean to move a transformation matrix
-%D before a drawing? What it means is that given a point
-%D $(P_x, P_y)$ we need a different set of coordinates
-%D $(P_x^\prime, P_y^\prime)$ such that if the transformation
-%D acts on $(P_x^\prime, P_y^\prime)$, they produce $(P_x,
-%D P_y)$. That is we need to solve the set of equations:
-%D
-%D \placeformula
-%D \startformula
-%D \pmatrix{P_x\cr P_y\cr 1\cr} = \pmatrix{s_x&r_y&t_x\cr
-%D r_x&s_y&t_y\cr
-%D 0 &0 &1 \cr}
-%D \pmatrix{P_x^\prime\cr
-%D P_y^\prime\cr
-%D 1 \cr}
-%D \stopformula
-%D
-%D Again matrix notation comes in handy (i.e. someone has
-%D already solved the problem for us): we need the inverse
-%D transformation matrix. The inverse transformation matrix can
-%D be calculated very easily:
-%D
-%D \placeformula
-%D \startformula
-%D \pmatrix{P_x^\prime\cr P_y^\prime\cr 1\cr} =
-%D \pmatrix{s_x^\prime&r_y^\prime&t_x^\prime\cr
-%D r_x^\prime&s_y^\prime&t_y^\prime\cr
-%D 0 &0 &1 \cr}
-%D \pmatrix{P_x\cr
-%D P_y\cr
-%D 1 \cr}
-%D \stopformula
-%D
-%D where, the inverse transformation matrix is given by
-%D
-%D \placeformula
-%D \startformula
-%D \eqalign
-%D {D & = s_x s_y - r_x r_y \cr
-%D s_x^\prime & = s_y / D \cr
-%D s_y^\prime & = s_x / D \cr
-%D r_x^\prime & = - r_x / D \cr
-%D r_y^\prime & = - r_y / D \cr
-%D t_x^\prime & = ( - s_y t_x + r_y t_y ) / D \cr
-%D t_y^\prime & = ( r_x t_x - s_x t_y ) / D \cr}
-%D \stopformula
-%D
-%D And you can see that when expanded out, this does
-%D give the formulas:
-%D
-%D \placeformula
-%D \startformula
-%D P_x^\prime = { { s_y(p_x-t_x) + r_y(t_y-p_y) } \over
-%D { s_x s_y-r_x r_y } }
-%D \stopformula
-%D
-%D \placeformula
-%D \startformula
-%D P_y^\prime = { { s_x(p_y-t_y) + r_x(t_x-p_x) } \over
-%D { s_x*s_y-r_x*r_y } }
-%D \stopformula
-%D
-%D The code works by representing a real number by converting
-%D it to a dimension to be put into a \DIMENSION\ register: 2.3 would
-%D be represented as 2.3pt for example. In this scheme,
-%D multiplying two numbers involves multiplying the \DIMENSION\
-%D registers and dividing by 65536. Accuracy demands that the
-%D division be done as late as possible, but overflow
-%D considerations need early division.
-%D
-%D Division involves dividing the two \DIMENSION\ registers and
-%D multiplying the result by 65536. Again, accuracy would
-%D demand that the numerator be multiplied (and|/|or the
-%D denominator divided) early: but that can lead to overflow
-%D which needs to be avoided.
-%D
-%D If nothing is known about the numbers to start with (in
-%D concat), I have chosen to divide the 65536 as a 256 in each
-%D operand. However, in the series calculating the sine and
-%D cosine, I know that the terms are small (because I never
-%D have an angle greater than 45 degrees), so I chose to
-%D apportion the factor in a different way.
-
-%M \stop
-
-%D The path is output using the values saved on the stack. If
-%D needed, all coordinates are recalculated.
-
-\def\finishMPpath
- {\PDFcode{\ifcase\finiMPpath W n\or S\or f\or B\fi}}
-
-\def\processMPpath
- {\checkMPpath
- \ifcase\nofMPsegments\else
- \flushMPpath
- \closeMPpath
- \finishMPpath
- \fi
- \let\handleMPsequence\dohandleMPsequence
- \resetMPstack
- \nofMPsegments\zerocount
- \handleMPsequence}
-
-%D The following \METAPOST\ code is quite valid but, when
-%D processed and converted to \PDF, will make a file
-%D unprintable on a Hewlett Packard printer (from Acrobat
-%D $v<=5$). Who is to blame, the driver of the OS layer in
-%D between, is hard to determine, so we add an additional
-%D check.
-%D
-%D \starttyping
-%D clip currentpicture to origin -- cycle ;
-%D setbounds currentpicture to fullsquare scaled 5cm ;
-%D \stoptyping
-
-\def\checkMPpath
- {\ifcase\finiMPpath
- \ifnum\nofMPsegments<3 % n is one ahead
- \message{omitting zero clip path}%
- \nofMPsegments\zerocount
- \fi
- \fi}
-
-%D In \PDF\ the \type{cm} operator must precede the path
-%D specification. We therefore can output the \type{cm} at
-%D the moment we encounter it.
-
-\def\handleMPpathconcat
- {\presetMPconcat
- \PDFcode{\gMPs1 \gMPs2 \gMPs3 \gMPs4 \gMPs5 \gMPs6 cm}%
- \resetMPstack}
-
-\def\handleMPpathscale
- {\presetMPscale
- \PDFcode{\gMPs1 0 0 \gMPs2 0 0 cm}%
- \resetMPstack}
-
-%D This macro interprets the path and saves it as compact as
-%D possible.
-
-\def\dohandleMPpath#1%
- {\ifcase\lccode`#1\relax
- \@EA\dohandleMPpathA
- \else
- \@EA\dohandleMPpathB
- \fi#1}
-
-%\def\dohandleMPpathA#1 %
-% {\setMPargument{#1}%
-% \handleMPsequence}
-
-\let\dohandleMPpathA\setMPsequence
-
-\def\dohandleMPpathB#1 %
- {\def\somestring{#1}%
- \ifx\somestring\PSlineto
- \setMPkeyword0
- \else\ifx\somestring\PScurveto
- \setMPkeyword1
- \else\ifx\somestring\PSrlineto
- \setMPkeyword2
- \else\ifx\somestring\PSmoveto
- \setMPkeyword3
- \else\ifx\somestring\PSclip
- % \chardef\finiMPpath0 % already
- \let\handleMPsequence\processMPpath
- \else\ifx\somestring\PSgsave
- \chardef\finiMPpath3
- \else\ifx\somestring\PSgrestore
- \else\ifx\somestring\PSfill
- \ifcase\finiMPpath
- \chardef\finiMPpath2
- \let\handleMPsequence\processMPpath
- \fi
- \else\ifx\somestring\PSstroke
- \ifcase\finiMPpath
- \chardef\finiMPpath1
- \fi
- \let\handleMPsequence\processMPpath
- \else\ifx\somestring\PSclosepath
- \def\closeMPpath{\PDFcode{h}}%
- \else\ifx\somestring\PSconcat
- \let\flushMPpath\flushconcatMPpath
- \handleMPpathconcat
- \else\ifx\somestring\PSscale
- \let\flushMPpath\flushconcatMPpath
- \handleMPpathscale
- \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
- \handleMPsequence}
-
-%D The main conversion command is:
-%D
-%D \starttyping
-%D \convertMPtoPDF {filename} {x scale} {y scale}
-%D \stoptyping
-%D
-%D The dimensions are derived from the bounding box. So we
-%D only have to say:
-%D
-%D \starttyping
-%D \convertMPtoPDF{mp-pra-1.eps}{1}{1}
-%D \convertMPtoPDF{mp-pra-1.eps}{.5}{.5}
-%D \stoptyping
-
-%D \macros
-%D {makeMPintoPDFobject,lastPDFMPobject}
-%D
-%D For experts there are a few more options. When attributes
-%D are to be added, the code must be embedded in an object
-%D accompanied with the appropriate directives. One can
-%D influence this process with \type {\makeMPintoPDFobject}.
-%D
-%D This option defaults to~0, because \CONTEXT\ takes care
-%D of objects at another level, which saves some bytes.
-%D
-%D \starttabulate[|l|l|p|]
-%D \NC 0 \NC never \NC don't use an object \NC\NR
-%D \NC 1 \NC always \NC always use an object \NC\NR
-%D \NC 2 \NC optional \NC use object when needed \NC\NR
-%D \stoptabulate
-%D
-%D The last object number used is avaliable in the macro
-%D \type {\lastPDFMPobject}.
-
-\ifx\makeMPintoPDFobject\undefined \chardef\makeMPintoPDFobject=0 \fi
-
-\def\lastPDFMPobject{0}
-
-%D The additional code needed can be made available in the
-%D (global) macro \type {\currentPDFresources}.
-
-\let\currentPDFresources\empty
-
-\newtoks\everyMPtoPDFconversion
-
-\def\convertMPtoPDF % #1#2#3%
- {\bgroup
- \ifx\pdfdecimaldigits\undefined\else \pdfdecimaldigits=5 \fi % new
- \setbox\scratchbox\vbox\bgroup
- \forgetall
- \offinterlineskip
- \startMPresources
- \doprocessMPtoPDFfile} %
-
-%D The next one is kind of private and probably will become obsolete):
-
-\def\processMPtoPDFfile % file xscale yscale
- {\bgroup
- \let\finishMPgraphic\egroup
- \doprocessMPtoPDFfile}
-
-\def\doprocessMPtoPDFfile#1#2#3% file xscale yscale
- {% the following line is needed for latex where onepoint is not
- % onepoint but a number (maxdimen); some day i'll make a latex
- % variant of this file so that i no longer have to deal with such
- % issues; then i'll also speed up this module using a few context
- % tricks
- %
- \let\onepoint\onerealpoint
- %
- \setMPspecials
- \the\everyMPtoPDFconversion
- \catcode`\^^M=\@@endofline
- \startMPscanning
- \let\do\empty
- \xdef\MPxscale{#2}%
- \xdef\MPyscale{#3}%
- \xdef\MPxoffset{0}%
- \xdef\MPyoffset{0}%
- \xdef\MPyshift{\zeropoint}%
- \donefalse
- \let\handleMPsequence\dohandleMPsequence
- \message{[MP to PDF]}% was: [MP to PDF #1] but there is a (#1) anyway
- \input#1\relax}
-
-% strange rounding/clip in pdftex/viewer
-%
-% \def\finishMPgraphic
-% {\stopMPresources
-% \egroup
-% \ifx\pdftexversion\undefined\else\ifnum\pdftexversion<14 % for the moment
-% \chardef\makeMPintoPDFobject=0
-% \fi\fi
-% \ifcase\makeMPintoPDFobject\or\or\ifx\currentPDFresources\empty\else
-% \chardef\makeMPintoPDFobject=1
-% \fi\fi
-% \setbox\scratchbox=\vbox
-% {\forgetall
-% \hbox
-% {\PDFcode{q \MPxscale\space 0 0 \MPyscale\space \MPxoffset\space \MPyoffset\space cm}%
-% \lower\MPyshift\box\scratchbox % unscaled shift
-% \PDFcode{Q}}}%
-% \ht\scratchbox\MPheight
-% \wd\scratchbox\MPwidth
-% \dp\scratchbox\zeropoint
-% \ifcase\makeMPintoPDFobject
-% \box\scratchbox
-% \or
-% \immediate\pdfxform resources{\currentPDFresources}\scratchbox
-% \xdef\lastPDFMPobject{\the\pdflastxform}%
-% \pdfrefxform\lastPDFMPobject
-% \global\let\currentPDFresources\empty
-% \else
-% \box\scratchbox
-% \fi
-% \egroup}
-%
-% funny clip in viewer
-%
-% \setbox\scratchbox=\vbox
-% {\forgetall
-% \dimen0=\MPllx bp
-% \dimen2=\MPlly bp
-% \setbox\scratchbox=\hbox{\hskip-\dimen0\raise-\dimen2\box\scratchbox}%
-% \ht\scratchbox=\zeropoint
-% \dp\scratchbox=\zeropoint
-% \wd\scratchbox=\zeropoint
-% \hbox
-% {\PDFcode{q \MPxscale\space 0 0 \MPyscale\space 0 0 cm}%
-% \lower\MPshift\box\scratchbox
-% \PDFcode{Q}}}%
-
-% \let\PDFMPformoffset\zeropoint
-
-\def\PDFMPformoffset
- {\ifx\objectoffset\undefined\zeropoint\else\objectoffset\fi}
-
-\def\finishMPgraphic
- {\stopMPresources
- \egroup
- \setbox\scratchbox\vbox
- {\forgetall
- \hbox
- {\PDFcode{q \MPxscale\space 0 0 \MPyscale\space \MPxoffset\space \MPyoffset\space cm}%
- \lower\MPyshift\box\scratchbox % unscaled shift
- \PDFcode{Q}}}%
- \ht\scratchbox\MPheight
- \wd\scratchbox\MPwidth
- \dp\scratchbox\zeropoint\relax
- \dopackageMPgraphic\scratchbox
- \egroup
- \endinput}
-
-%D Alternative for \PDFTEX. We cannot come up with something more contexy
-%D because this module is also used in \LATEX.
-
-\def\dopackageMPgraphic#1% #1 = boxregister
- {%\ifx\pdfxform\undefined
- % \chardef\makeMPintoPDFobject\zerocount % no pdftex at all
- %\else\ifx\pdftexversion\undefined
- % \chardef\makeMPintoPDFobject\zerocount % no pdftex at all
- %\else\ifnum\pdftexversion<14
- % \chardef\makeMPintoPDFobject\zerocount % no resource support
- %\else
- % % keep the default value
- %\fi\fi\fi
- \ifcase\makeMPintoPDFobject\or\or\ifx\currentPDFresources\empty\else
- % an existing value of 2 signals object support (set elsewhere)
- \chardef\makeMPintoPDFobject\plusone
- \fi\fi
- \ifcase\makeMPintoPDFobject
- \box#1%
- \or
- \scratchdimen\PDFMPformoffset\relax
- \ifdim\scratchdimen>\zeropoint % compensate for error
- \setbox#1\vbox spread 2\scratchdimen
- {\forgetall\vss\hbox spread 2\scratchdimen{\hss\box#1\hss}\vss}%
- \fi
- \setMPPDFobject{\currentPDFresources}{#1}%
- \ifdim\scratchdimen>\zeropoint % compensate for error
- \vbox to \MPheight
- {\forgetall\vss\hbox to \MPwidth{\hss\getMPPDFobject\hss}\vss}%
- \else
- \getMPPDFobject
- \fi
- \global\let\currentPDFresources\empty
- \else
- \box#1%
- \fi}
-
-\def\setMPPDFobject#1#2% resources boxnumber
- {\ifx\pdfxform\undefined
- \def\getMPPDFobject{\box#2}%
- \else\ifx\pdftexversion\undefined
- \def\getMPPDFobject{\box#2}%
- \else\ifnum\pdftexversion<14
- \def\getMPPDFobject{\box#2}%
- \else
- \immediate\pdfxform resources{#1}#2%
- \edef\getMPPDFobject{\noexpand\pdfrefxform\the\pdflastxform}%
- \fi\fi\fi}
-
-\let\getMPPDFobject\relax
-
-%D \macros
-%D {deleteMPgraphic,
-%D startMPresources,
-%D stopMPresources}
-%D
-%D Here are a few hooks for \CONTEXT\ specific things.
-
-\ifx\deleteMPgraphic\undefined
- \def\deleteMPgraphic#1{}
-\fi
-
-\ifx\startMPresources\undefined
- \let\startMPresources\relax
- \let\stopMPresources\relax
-\fi
-
-%D \macros
-%D {twodigitMPoutput}
-%D
-%D We can limit the precision to two digits after the comma
-%D by saying:
-%D
-%D \starttyping
-%D \twodigitMPoutput
-%D \stoptyping
-%D
-%D This option only works in \CONTEXT\ combined with \ETEX.
-
-\def\twodigitMPoutput
- {\let\!MP \twodigitrounding
- \def\!MPgMPs##1{\twodigitrounding{\gMPs##1}}%
- \def\!MPgMPa##1{\twodigitrounding{\gMPa##1}}}
-
-\let\!MP \empty
-\let\!MPgMPa\gMPa
-\let\!MPgMPs\gMPs
-
-%D This kind of conversion is possible because \METAPOST\
-%D does all the calculations. Converting other \POSTSCRIPT\
-%D files would drive both me and \TEX\ crazy.
-
-\ifx\undefined\StopLatexHack \else \StopLatexHack \fi
-
-\protect \endinput
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