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-rw-r--r--tex/context/base/colo-ini.tex8
-rw-r--r--tex/context/base/cont-new.tex11
-rw-r--r--tex/context/base/context.tex17
-rw-r--r--tex/context/base/core-buf.tex4
-rw-r--r--tex/context/base/core-fig.tex2
-rw-r--r--tex/context/base/core-fil.tex2
-rw-r--r--tex/context/base/core-itm.tex4
-rw-r--r--tex/context/base/core-mat.tex26
-rw-r--r--tex/context/base/core-not.tex8
-rw-r--r--tex/context/base/core-num.tex12
-rw-r--r--tex/context/base/core-ref.tex4
-rw-r--r--tex/context/base/core-reg.tex44
-rw-r--r--tex/context/base/core-syn.tex20
-rw-r--r--tex/context/base/core-sys.tex8
-rw-r--r--tex/context/base/core-var.tex1
-rw-r--r--tex/context/base/enco-fpl.tex46
-rw-r--r--tex/context/base/enco-ini.tex77
-rw-r--r--tex/context/base/enco-pol.tex48
-rw-r--r--tex/context/base/font-uni.tex4
-rw-r--r--tex/context/base/lang-ini.tex16
-rw-r--r--tex/context/base/m-r.tex159
-rw-r--r--tex/context/base/meta-pdf.tex3203
-rw-r--r--tex/context/base/page-flt.tex41
-rw-r--r--tex/context/base/page-ini.tex30
-rw-r--r--tex/context/base/sort-ini.tex46
-rw-r--r--tex/context/base/sort-lan.tex12
-rw-r--r--tex/context/base/sort-new.tex49
-rw-r--r--tex/context/base/spec-ini.tex6
-rw-r--r--tex/context/base/supp-mps.tex22
-rw-r--r--tex/context/base/syst-con.tex2
-rw-r--r--tex/context/base/syst-ext.tex14
-rw-r--r--tex/context/base/syst-gen.tex5
-rw-r--r--tex/context/base/syst-tex.tex2
-rw-r--r--tex/context/base/x-newmml.tex19
-rw-r--r--tex/context/base/xtag-ent.tex1
-rw-r--r--tex/context/interface/cont-cz.xml2
-rw-r--r--tex/context/interface/cont-de.xml2
-rw-r--r--tex/context/interface/cont-en.xml2
-rw-r--r--tex/context/interface/cont-fr.xml2
-rw-r--r--tex/context/interface/cont-it.xml2
-rw-r--r--tex/context/interface/cont-nl.xml2
-rw-r--r--tex/context/interface/cont-ro.xml2
42 files changed, 3745 insertions, 242 deletions
diff --git a/tex/context/base/colo-ini.tex b/tex/context/base/colo-ini.tex
index 0fac60740..007629620 100644
--- a/tex/context/base/colo-ini.tex
+++ b/tex/context/base/colo-ini.tex
@@ -144,7 +144,7 @@
8: specifica -- del colore -- convertita in nero
9: spazio dei colori -- non supportato
10: spazio dei colori -- supportato
- 11: il colore è convertito in grigio
+ 11: il colore ø convertito in grigio
12: -- is registered
\stopmessages
@@ -158,9 +158,9 @@
6: palett -- er tilgjengelig
7: palett -- er ikke tilgjengelig
8: spesifikasjon -- for farge -- gir kun svart
- 9: -- fargerom er ikke støttet
- 10: -- fargerom er støttet
- 11: fargen vil bli vist som grå
+ 9: -- fargerom er ikke støttet
+ 10: -- fargerom er støttet
+ 11: fargen vil bli vist som grø
12: -- is registered
\stopmessages
diff --git a/tex/context/base/cont-new.tex b/tex/context/base/cont-new.tex
index 8cd1c6975..93b9257d4 100644
--- a/tex/context/base/cont-new.tex
+++ b/tex/context/base/cont-new.tex
@@ -11,7 +11,7 @@
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
-\newcontextversion{2006.05.28 13:28}
+\newcontextversion{2006.06.07 23:34}
%D This file is loaded at runtime, thereby providing an
%D excellent place for hacks, patches, extensions and new
@@ -91,6 +91,9 @@
\defineXMLsavecontent[rl:height]{\!!zeropoint}
\stopXMLmapping
+\let\rliwidth \!!zeropoint
+\let\rliheight\!!zeropoint
+
\def\getRLIfiguredimensions#1%
{\let\rliwidth \!!zeropoint
\let\rliheight\!!zeropoint
@@ -111,9 +114,9 @@
\edef\rliwidth {\XMLflush{rl:width}}%
\edef\rliheight{\XMLflush{rl:height}}%
\stopXMLignore
- \stopXMLmapping}
- {}%
- \stopnointerference}
+ \stopXMLmapping
+ \stopnointerference}
+ {}}
\def\getfiguredimensionsC
{\ifcase\figurestatus\ifcase\figurefilemode\else
diff --git a/tex/context/base/context.tex b/tex/context/base/context.tex
index abc023fc3..e9cd937bd 100644
--- a/tex/context/base/context.tex
+++ b/tex/context/base/context.tex
@@ -31,7 +31,7 @@
%D 2004.8.30 the low level interface is english. Watch out and adapt
%D your styles an modules.
-\def\contextversion{2006.05.28 13:28}
+\def\contextversion{2006.06.07 23:34}
%D For those who want to use this:
@@ -127,10 +127,10 @@
\input supp-vis.tex
\input supp-fun.tex
\input supp-eps.tex
-\input supp-pdf.tex
+%input supp-pdf.tex
\input supp-spe.tex
\input supp-mps.tex
-\input supp-mpe.tex
+%input supp-mpe.tex
\input supp-tpi.tex
\input supp-mat.tex
\input supp-ran.tex
@@ -192,6 +192,8 @@
\input unic-ini.tex
%input unic-ext.tex % obsolete
+% \readfile{lang-url.pat}{}{} % test
+
\input colo-ini.tex
\input colo-ext.tex
@@ -292,6 +294,7 @@
%D support is also organized in its own class of modules.
\input meta-ini.tex
+\input meta-pdf.tex
\input meta-pag.tex
\input meta-fig.tex
@@ -471,15 +474,15 @@
\startinterface italian
-\writestring{Questo pacchetto è basato sul Plain TeX. Usa una versione adattata del}
+\writestring{Questo pacchetto è basato sul Plain TeX. Usa una versione adattata del}
\writestring{meccanismo di marcatura esteso di J. Fox (1987) ad alcune parti del}
\writestring{meccanismo per gli oggetti mobili laterali di D. Comenetz (1993).}
-\writestring{La maggior parte del Plain TeX (\fmtversion) di D.E. Knuth è disponibile}
-\writestring{e può essere usata senza problemi. Questo pacchetto usa TaBlE,}
+\writestring{La maggior parte del Plain TeX (\fmtversion) di D.E. Knuth è disponibile}
+\writestring{e può essere usata senza problemi. Questo pacchetto usa TaBlE,}
\writestring{un pacchetto progettato da e con diritti di copia di M.J. Wichura (1988).}
\writestring{Vengono generati pochi file ausiliari, alcuni dei quali devono essere}
\writestring{elaborati da TeXUtil (\utilityversion). La versione attuale del blocco}
-\writestring{è \blockversion.}
+\writestring{è \blockversion.}
\writestring{}
\writestring{L'INTERFACCIA UTENTE ITALIANA E' ANCORA IN VIA DI SVILUPPO!}
\writestring{THE ITALIAN USER INTERFACE IS STILL UNDER DEVELOPMENT!}
diff --git a/tex/context/base/core-buf.tex b/tex/context/base/core-buf.tex
index 6ee575daa..22cc62626 100644
--- a/tex/context/base/core-buf.tex
+++ b/tex/context/base/core-buf.tex
@@ -97,10 +97,10 @@
\startmessages norwegian library: textblocks
title: tekstblokker
- 1: ny versjon, andre gjennomkjøring nødvendig
+ 1: ny versjon, andre gjennomkjøring nødvendig
2: skriver blokker til --
3: leser blokker fra --
- 4: andre gjennomkjøring nødvendig
+ 4: andre gjennomkjøring nødvendig
5: -- ikke skjult
6: -- skjult og behandlet
7: -- skjult
diff --git a/tex/context/base/core-fig.tex b/tex/context/base/core-fig.tex
index 0c2d4f0c3..ffec292a9 100644
--- a/tex/context/base/core-fig.tex
+++ b/tex/context/base/core-fig.tex
@@ -101,7 +101,7 @@
\startmessages italian library: figures
title: figure
1: figura -- non trovata
- 2: la figura -- non è preimpostata
+ 2: la figura -- non è preimpostata
3: dimensioni della figura -- prese da --
4: dimensioni di -- caricate dal file di immagini stesso
5: dimensioni di -- caricate dal file di immagini --
diff --git a/tex/context/base/core-fil.tex b/tex/context/base/core-fil.tex
index d31b4af22..157631194 100644
--- a/tex/context/base/core-fil.tex
+++ b/tex/context/base/core-fil.tex
@@ -41,7 +41,7 @@
\startmessages italian library: files
title: file
- 1: sinonimo file -- già in uso per --
+ 1: sinonimo file -- già in uso per --
\stopmessages
\startmessages norwegian library: files
diff --git a/tex/context/base/core-itm.tex b/tex/context/base/core-itm.tex
index 8d45cfa8c..d495011f1 100644
--- a/tex/context/base/core-itm.tex
+++ b/tex/context/base/core-itm.tex
@@ -33,11 +33,11 @@
\stopmessages
\startmessages italian library: layouts
- 9: attualmente non più di -- livelli di elencazione
+ 9: attualmente non più di -- livelli di elencazione
\stopmessages
\startmessages norwegian library: layouts
- 9: for øyeblikket maksimalt -- nivåer i opplisting
+ 9: for øyeblikket maksimalt -- nivåer i opplisting
\stopmessages
\startmessages romanian library: layouts
diff --git a/tex/context/base/core-mat.tex b/tex/context/base/core-mat.tex
index 298803bd0..b80c9cc09 100644
--- a/tex/context/base/core-mat.tex
+++ b/tex/context/base/core-mat.tex
@@ -17,6 +17,32 @@
\unprotect
+% \definemessageconstant{math}
+
+% \startmessages all library: math
+% title: math
+% 1: don't use -- here (line \the\inputlineno)
+% \stopmessages
+
+% \def\invalidmathcommand#1{\showmessage\m!math1{#1}}
+
+% \let\normaleqno \eqno
+% \let\normalleqno\leqno
+
+% \appendtoks
+% \def\eqno {\invalidmathcommand{\string\eqno }}%
+% \def\leqno{\invalidmathcommand{\string\leqno}}%
+% \to \everydisplay
+
+% \appendtoks
+% \let\eqno\normaleqno
+% \let\leqno\normaleqno
+% \to \everymath
+
+% \placeformula\startformula
+% H(K|M,C) = H(K|C) - H(M|C)\eqno{\hbox{(\in{}[eq:keyapp])}}
+% \stopformula
+
\def\mathortext
{\ifmmode
\expandafter\firstoftwoarguments
diff --git a/tex/context/base/core-not.tex b/tex/context/base/core-not.tex
index d4c2a5dcf..dbbc0cc0c 100644
--- a/tex/context/base/core-not.tex
+++ b/tex/context/base/core-not.tex
@@ -985,10 +985,10 @@
\vbox{\flushshapebox}}}%
\localframed
[\??vn\currentnote]
- [\c!width=\v!fit,
- \c!height=\v!fit,
- \c!strut=\v!no,
- \c!offset=\v!overlay]
+ [ \c!width=\v!fit,
+ \c!height=\v!fit,
+ \c!strut=\v!no,
+ \c!offset=\v!overlay]
{\ifdim\dp0=\zeropoint % this hack is needed because \vadjust
\hbox{\lower\strutdp\box0}% % in margin number placement
\else % hides the (always) present depth
diff --git a/tex/context/base/core-num.tex b/tex/context/base/core-num.tex
index 1f89b06cb..2747ea5e7 100644
--- a/tex/context/base/core-num.tex
+++ b/tex/context/base/core-num.tex
@@ -72,6 +72,7 @@
\c!location=, % no longer used here, will go away (was ooit \c!zetwijze)
\c!conversion=\v!numbers,
\c!start=0,
+ \c!state=\v!start,
#2]%
\makecounter{\@@thenumber{#1}}%
\setxvalue{\@@thenumber{#1}\c!n}{\countervalue{\@@thenumber{#1}}}%
@@ -109,13 +110,22 @@
% {\pluscounter{\@@thenumber{#1}}}
% {\setcounter{\@@thenumber{#1}}{0\csname\@@thenumber{#1}\c!start\endcsname}}}
+% \def\incrementnumber[#1]% bypage tricky: needs a
+% {\doifelse{\numberparameter{#1}\c!way}{\v!by\v!page}
+% {\checkpagechange{#1}%
+% \ifpagechanged\resetcounter{\@@thenumber{#1}}\fi}
+% {\checknumber[#1]}%
+% \doifelse\@@nrstate\v!start % only here
+% {\pluscounter{\@@thenumber{#1}}}
+% {\setcounter{\@@thenumber{#1}}{0\numberparameter{#1}\c!start}}}
+
\def\incrementnumber[#1]% bypage tricky: needs a
{\doifelse{\numberparameter{#1}\c!way}{\v!by\v!page}
{\checkpagechange{#1}%
\ifpagechanged\resetcounter{\@@thenumber{#1}}\fi}
{\checknumber[#1]}%
\doifelse\@@nrstate\v!start % only here
- {\pluscounter{\@@thenumber{#1}}}
+ {\doif{\numberparameter{#1}\c!state}\v!start{\pluscounter{\@@thenumber{#1}}}}
{\setcounter{\@@thenumber{#1}}{0\numberparameter{#1}\c!start}}}
% \defineenumeration [test] [way=bypage,text=\lastchangedpage]
diff --git a/tex/context/base/core-ref.tex b/tex/context/base/core-ref.tex
index 4d31bf3a0..f3224d94d 100644
--- a/tex/context/base/core-ref.tex
+++ b/tex/context/base/core-ref.tex
@@ -93,14 +93,14 @@
3: riferimento di tipo sconosciuto --
4: riferimento illecito --
21: documento -- caricato
- 22: il documento -- non è interattivo
+ 22: il documento -- non ø interattivo
23: riferimento ambiguo -- (prefisso=--)
\stopmessages
\startmessages norwegian library: references
title: referanser
1: ukjent referanse --
- 2: duplikat referanse -- på side --
+ 2: duplikat referanse -- pø side --
3: ukjent referansetype --
4: ulovlig referanse --
21: dokument -- er lest inn
diff --git a/tex/context/base/core-reg.tex b/tex/context/base/core-reg.tex
index 44c616107..a192c6526 100644
--- a/tex/context/base/core-reg.tex
+++ b/tex/context/base/core-reg.tex
@@ -80,6 +80,34 @@
%
% \index[Ätsch]{Ätsch} test \index{QÄtsch} test \index[ratsch]{RÄtsch} test
+% \def\doprocesspageregister[#1]#2#3% key altnum entry
+% {\begingroup
+% \thisisnextinternal\s!ind
+% \ifduplicate\getlastregisterentry{#3}\fi
+% \convertexpanded{\registerparameter\c!keyexpansion}{#1}\asciiregisterentryA
+% \convertexpanded{\registerparameter\c!expansion }{#3}\asciiregisterentryB
+% \doifsomething{\registerparameter\c!keyexpansion}
+% {\ifx\asciiregisterentryA\empty
+% \convertexpanded{\registerparameter\c!keyexpansion}{#3}\asciiregisterentryA
+% \fi}%
+% \makesectionformat
+% \doifelse{\registerparameter\c!ownnumber}\v!yes
+% \donetrue\donefalse
+% % the spaces between } { are essential for texutil's split
+% \expanded
+% {\writeutility%
+% {r \ifcase\registerpagestatus\space\or e \or f \or t \fi
+% {\currentregister} %
+% {\nextinternalreference} %
+% {\asciiregisterentryA} %
+% {\asciiregisterentryB} %
+% {\sectionformat\sectionseparator\sectionseparator
+% \ifdone#2\else\noexpand\pagenumber\fi} %
+% {\noexpand\realfolio}}}%
+% \getfirstcharacter\currentregister
+% \registerinfo{> \firstcharacter}{#3}%
+% \endgroup}
+
\def\doprocesspageregister[#1]#2#3% key altnum entry
{\begingroup
\thisisnextinternal\s!ind
@@ -432,9 +460,13 @@
%D Don't use \type{\string#2}; another hack is needed, since
%D \type {#2} can be \type {\string} itself.
+% \def\doregisterreference[#1]#2%
+% {\doifvalue{\??id#1\c!referencing}\v!on
+% {\pagereference[#1:#2]}}
+
\def\doregisterreference[#1]#2%
{\doifvalue{\??id#1\c!referencing}\v!on
- {\pagereference[#1:#2]}}
+ {\pagereference[#1:\strippedcsname#2]}}
\def\dosetpageregisterletter#1#2%
{\gdef\c!entryreference
@@ -901,6 +933,10 @@
\endgroup
\fi}
+\def\doregisterregisterlanguage#1%
+ {\savesortlanguage{\getvalue{\??id#1\s!language}}%
+ \immediatewriteutility{r l {#1} {\getvalue{\??id#1\s!language}}}}
+
\def\dodefineregister[#1][#2]%
{\setupregister[#1]%
[\c!n=2,
@@ -926,7 +962,11 @@
\c!unknownreference=\v!empty,
\c!prefix=\v!both,
\c!expansion=,
- \c!keyexpansion=]%
+ \c!keyexpansion=,
+ \s!language=\currentmainlanguage]%
+ \doglobal\appendtoksonce
+ \doregisterregisterlanguage{#1}%
+ \to \everysavesortkeys
\presetheadtext[#1=\Word{#1}]%
\addutilityreset{#1}%
\setvalue{#1}{\doregister{#1}}%
diff --git a/tex/context/base/core-syn.tex b/tex/context/base/core-syn.tex
index 9c291f156..ec866e18c 100644
--- a/tex/context/base/core-syn.tex
+++ b/tex/context/base/core-syn.tex
@@ -178,6 +178,10 @@
\dodocomplexsynonym[#2][#1#4]{#4}{#5}%
\fi}
+\def\doregistersynonymlanguage#1%
+ {\savesortlanguage{\getvalue{\??sm#1\s!language}}%
+ \immediatewriteutility{s l {#1} {\getvalue{\??sm#1\s!language}}}}
+
\def\dodefinesynonyms[#1][#2][#3][#4]%
{\iffourthargument
\unexpanded\def#4##1{\getsynonymmeaning{#1}{\??sm:#1:}{##1}}%
@@ -199,7 +203,11 @@
\c!sample=,\c!hang=,\c!align=,
\c!before=,\c!inbetween=,\c!after=,
\c!indentnext=\v!no,
- \c!expansion=]%
+ \c!expansion=,
+ \s!language=\currentmainlanguage]%
+ \doglobal\appendtoksonce
+ \doregistersynonymlanguage{#1}%
+ \to \everysavesortkeys
\presetheadtext[#2=\Word{#2}]% changes the \if...argument
\addutilityreset{#1}%
\setvalue{\e!setup #2\e!endsetup}{\dodoubleargument\getparameters[\??sm#1]}% to be obsolete
@@ -346,6 +354,10 @@
% if #3=\relax or \v!none, then no command but still protected
+\def\doregistersortinglanguage#1%
+ {\savesortlanguage{\getvalue{\??so#1\s!language}}%
+ \immediatewriteutility{s l {#1} {\getvalue{\??so#1\s!language}}}}
+
\def\dodefinesorting[#1][#2][#3]%
{\getparameters[\??so#1]
[%\c!command=, % we test for defined !
@@ -354,7 +366,11 @@
\c!style=,
\c!before=,
\c!after=\endgraf,
- \c!expansion=]%
+ \c!expansion=,
+ \s!language=\currentmainlanguage]%
+ \doglobal\appendtoksonce
+ \doregistersortinglanguage{#1}%
+ \to \everysavesortkeys
\ifthirdargument
\ConvertConstantAfter\doifnot{#3}\v!none
{\ifx#3\relax \else
diff --git a/tex/context/base/core-sys.tex b/tex/context/base/core-sys.tex
index 3ca2241db..3d2fbd450 100644
--- a/tex/context/base/core-sys.tex
+++ b/tex/context/base/core-sys.tex
@@ -80,12 +80,12 @@
\fi
\processaction
[\@@svtype]
- [ mswin=>\def\@@svline{\rawcharacter{13}\rawcharacter{10}}, % crlf
- darwin=>\def\@@svline{\rawcharacter{13}}, % cr
- \s!unknown=>\def\@@svline{\rawcharacter{10}}]% % lf
+ [ mswin=>\edef\@@svline{\rawcharacter{13}\rawcharacter{10}}, % crlf
+ darwin=>\edef\@@svline{\rawcharacter{13}}, % cr
+ \s!unknown=>\edef\@@svline{\rawcharacter{10}}]% % lf
\splitjobfilename}
-\def\@@svline{\rawcharacter{10}} % unix is the most critical/sensitive system
+\edef\@@svline{\rawcharacter{10}} % unix is the most critical/sensitive system
\def\systemendofline{\@@svline}
diff --git a/tex/context/base/core-var.tex b/tex/context/base/core-var.tex
index 9144606e9..54c9c52df 100644
--- a/tex/context/base/core-var.tex
+++ b/tex/context/base/core-var.tex
@@ -272,6 +272,7 @@
\newevery \everyendofpar \relax
\newevery \everylistentry \relax
\newevery \everymarking \relax
+\newevery \everysavesortkeys \relax
%D For shared \type {\everymath} and \type {\everydisplay}:
diff --git a/tex/context/base/enco-fpl.tex b/tex/context/base/enco-fpl.tex
index 0f9ba2966..2f90ad9c7 100644
--- a/tex/context/base/enco-fpl.tex
+++ b/tex/context/base/enco-fpl.tex
@@ -62,28 +62,30 @@
\stoplanguagespecifics
-\startlanguagespecifics[\s!pl]
-
- \definesortkey {/a}{a}{a}{\k a}
- \definesortkey {/A}{a}{a}{\k a}
- \definesortkey {/c}{c}{a}{\'c}
- \definesortkey {/C}{c}{a}{\'c}
- \definesortkey {/e}{e}{a}{\k e}
- \definesortkey {/E}{e}{a}{\k e}
- \definesortkey {/l}{l}{a}{\l }
- \definesortkey {/L}{l}{a}{\l }
- \definesortkey {/n}{n}{a}{\'n}
- \definesortkey {/N}{n}{a}{\'n}
- \definesortkey {/o}{o}{a}{\'o}
- \definesortkey {/O}{o}{a}{\'o}
- \definesortkey {/s}{s}{a}{\'s}
- \definesortkey {/S}{s}{a}{\'s}
- \definesortkey {/x}{z}{a}{\'x}
- \definesortkey {/X}{z}{a}{\'x}
- \definesortkey {/z}{z}{b}{\.z}
- \definesortkey {/Z}{z}{b}{\.z}
-
-\stoplanguagespecifics
+% obsolete
+%
+% \startlanguagespecifics[\s!pl]
+%
+% \definesortkey {/a}{a}{a}{\k a}
+% \definesortkey {/A}{a}{a}{\k a}
+% \definesortkey {/c}{c}{a}{\'c}
+% \definesortkey {/C}{c}{a}{\'c}
+% \definesortkey {/e}{e}{a}{\k e}
+% \definesortkey {/E}{e}{a}{\k e}
+% \definesortkey {/l}{l}{a}{\l }
+% \definesortkey {/L}{l}{a}{\l }
+% \definesortkey {/n}{n}{a}{\'n}
+% \definesortkey {/N}{n}{a}{\'n}
+% \definesortkey {/o}{o}{a}{\'o}
+% \definesortkey {/O}{o}{a}{\'o}
+% \definesortkey {/s}{s}{a}{\'s}
+% \definesortkey {/S}{s}{a}{\'s}
+% \definesortkey {/x}{z}{a}{\'x}
+% \definesortkey {/X}{z}{a}{\'x}
+% \definesortkey {/z}{z}{b}{\.z}
+% \definesortkey {/Z}{z}{b}{\.z}
+%
+% \stoplanguagespecifics
\startencoding[pdfdoc]
\startlanguagespecifics[pl]% hm
diff --git a/tex/context/base/enco-ini.tex b/tex/context/base/enco-ini.tex
index 9139aae75..70878656f 100644
--- a/tex/context/base/enco-ini.tex
+++ b/tex/context/base/enco-ini.tex
@@ -947,43 +947,17 @@
\def\startencoding
{\dodoubleempty\dostartencoding}
-% \def\dostartencoding[#1][#2]% encoding regime
-% {\doifelsenothing{#1}
-% {\let\stopencoding\relax}
-% {%\protectfontcharacters % problematic in language loading
-% %\showmessage\m!encodings1{#1}%
-% \pushmacro\dohandleaccent % still needed?
-% \pushmacro\dohandlecommand % still needed?
-% \pushmacro\definesortkey
-% \pushmacro\characterregime
-% \pushmacro\doautosetregime
-% \let\dohandleaccent\donthandleaccent % still needed?
-% \let\dohandlecommand\donthandlecommand % still needed?
-% \let\definesortkey\savesortkey
-% \doifelsenothing{#2}%
-% {\let\doautosetregime\gobbletwoarguments}
-% {\def\characterregime{@#2@}}%
-% \enableencoding[#1]%
-% \def\stopencoding%
-% {\popmacro\doautosetregime
-% \popmacro\characterregime
-% \popmacro\definesortkey
-% \popmacro\dohandlecommand % still needed?
-% \popmacro\dohandleaccent % still needed?
-% \enableencoding[\s!default]%
-% }}}% \unprotectfontcharacters}}} % ??
-
\def\dostartencoding[#1][#2]% encoding regime
{%\showmessage\m!encodings1{#1}%
\pushmacro\characterencoding
\pushmacro\characterregime
\pushmacro\dohandleaccent % still needed?
\pushmacro\dohandlecommand % still needed?
- \pushmacro\definesortkey
+ %pushmacro\definesortkey
\pushmacro\doautosetregime
\let\dohandleaccent\donthandleaccent % still needed?
\let\dohandlecommand\donthandlecommand % still needed?
- \let\definesortkey\savesortkey
+ %let\definesortkey\savesortkey
\edef\characterencoding{@#1@}%
\doifelsenothing{#2}%
{\let\doautosetregime\gobbletwoarguments}
@@ -991,7 +965,7 @@
\def\stopencoding
{\popmacro\doautosetregime
- \popmacro\definesortkey
+ %popmacro\definesortkey
\popmacro\dohandlecommand % still needed?
\popmacro\dohandleaccent % still needed?
\popmacro\characterregime
@@ -1036,27 +1010,34 @@
%D This mechanism is currently being tested and subjected to
%D changes!
-\def\savesortkey#1#2#3#4%
- {\let\flushsortkey\relax % important
- \edef\!!stringa{sort:\characterencoding}%
- \ifundefined\!!stringa
- \let\!!stringb\empty
- \else
- \@EA\def\@EA\!!stringb\@EA{\csname\!!stringa\endcsname}%
- \fi
- \convertargument#1\to\asciiA \convertargument#2\to\asciiB
- \convertargument#3\to\asciiC \convertargument#4\to\asciiD
- \setevalue{\!!stringa}%
- {\!!stringb\flushsortkey{\asciiA}{\asciiB}{\asciiC}{\asciiD}}}
-
-\def\definesortkey#1#2#3#4%
- {}
+%D THS CODE IS OBSOLETE
-\def\flushsortkeys
- {\enablelanguagespecifics[\currentlanguage]%
- \getvalue{sort:\characterencoding}}
+% \def\savesortkey#1#2#3#4%
+% {\let\flushsortkey\relax % important
+% \edef\!!stringa{sort:\characterencoding}%
+% \ifundefined\!!stringa
+% \let\!!stringb\empty
+% \else
+% \@EA\def\@EA\!!stringb\@EA{\csname\!!stringa\endcsname}%
+% \fi
+% \convertargument#1\to\asciiA \convertargument#2\to\asciiB
+% \convertargument#3\to\asciiC \convertargument#4\to\asciiD
+% \setevalue{\!!stringa}%
+% {\!!stringb\flushsortkey{\asciiA}{\asciiB}{\asciiC}{\asciiD}}}
+%
+% \def\definesortkey#1#2#3#4%
+% {}
+%
+% \def\flushsortkeys
+% {\enablelanguagespecifics[\currentlanguage]%
+% \getvalue{sort:\characterencoding}}
+%
+% \let\flushsortkey \relax
-\let\flushsortkey\relax
+\let\definesortkey\gobblefourarguments
+\let\savesortkey \gobblefourarguments
+\let\flushsortkeys\relax
+\let\flushsortkey \relax
%D \macros
%D {defineaccent, definecharacter, definecommand}
diff --git a/tex/context/base/enco-pol.tex b/tex/context/base/enco-pol.tex
index d9f49a2dc..a012f0370 100644
--- a/tex/context/base/enco-pol.tex
+++ b/tex/context/base/enco-pol.tex
@@ -98,29 +98,31 @@
\stopencoding
-\startencoding[pl0]
-
-\definesortkey {161} {a}{a}{\k a} \definesortkey {129} {a}{a}{\k a}
-\definesortkey {162} {c}{a}{\'c} \definesortkey {130} {c}{a}{\'c}
-\definesortkey {166} {e}{a}{\k e} \definesortkey {134} {e}{a}{\k e}
-\definesortkey {170} {l}{a}{\l } \definesortkey {138} {l}{a}{\l }
-\definesortkey {171} {n}{a}{\'n} \definesortkey {139} {n}{a}{\'n}
-\definesortkey {177} {s}{a}{\'s} \definesortkey {145} {s}{a}{\'s}
-\definesortkey {185} {z}{a}{\'z} \definesortkey {153} {z}{a}{\'z}
-\definesortkey {187} {z}{b}{\.z} \definesortkey {155} {z}{b}{\.z}
-\definesortkey {243} {o}{a}{\'o} \definesortkey {211} {o}{a}{\'o}
-
-\definesortkey {\'c} {c}{a}{\'c} \definesortkey {\'C} {c}{a}{\'c}
-\definesortkey {\'n} {n}{a}{\'n} \definesortkey {\'N} {n}{a}{\'n}
-\definesortkey {\'o} {o}{a}{\'o} \definesortkey {\'O} {o}{a}{\'o}
-\definesortkey {\'s} {s}{a}{\'s} \definesortkey {\'S} {s}{a}{\'s}
-\definesortkey {\'z} {z}{a}{\'z} \definesortkey {\'Z} {z}{a}{\'z}
-\definesortkey {\.z} {z}{b}{\.z} \definesortkey {\.Z} {z}{b}{\.z}
-\definesortkey {\k a}{a}{a}{\k a} \definesortkey {\k A}{a}{a}{\k a}
-\definesortkey {\k e}{e}{a}{\k e} \definesortkey {\k E}{e}{a}{\k e}
-\definesortkey {\l } {l}{a}{\l} \definesortkey {\L } {l}{a}{\l}
-
-\stopencoding
+% obsolete
+%
+% \startencoding[pl0]
+%
+% \definesortkey {161} {a}{a}{\k a} \definesortkey {129} {a}{a}{\k a}
+% \definesortkey {162} {c}{a}{\'c} \definesortkey {130} {c}{a}{\'c}
+% \definesortkey {166} {e}{a}{\k e} \definesortkey {134} {e}{a}{\k e}
+% \definesortkey {170} {l}{a}{\l } \definesortkey {138} {l}{a}{\l }
+% \definesortkey {171} {n}{a}{\'n} \definesortkey {139} {n}{a}{\'n}
+% \definesortkey {177} {s}{a}{\'s} \definesortkey {145} {s}{a}{\'s}
+% \definesortkey {185} {z}{a}{\'z} \definesortkey {153} {z}{a}{\'z}
+% \definesortkey {187} {z}{b}{\.z} \definesortkey {155} {z}{b}{\.z}
+% \definesortkey {243} {o}{a}{\'o} \definesortkey {211} {o}{a}{\'o}
+%
+% \definesortkey {\'c} {c}{a}{\'c} \definesortkey {\'C} {c}{a}{\'c}
+% \definesortkey {\'n} {n}{a}{\'n} \definesortkey {\'N} {n}{a}{\'n}
+% \definesortkey {\'o} {o}{a}{\'o} \definesortkey {\'O} {o}{a}{\'o}
+% \definesortkey {\'s} {s}{a}{\'s} \definesortkey {\'S} {s}{a}{\'s}
+% \definesortkey {\'z} {z}{a}{\'z} \definesortkey {\'Z} {z}{a}{\'z}
+% \definesortkey {\.z} {z}{b}{\.z} \definesortkey {\.Z} {z}{b}{\.z}
+% \definesortkey {\k a}{a}{a}{\k a} \definesortkey {\k A}{a}{a}{\k a}
+% \definesortkey {\k e}{e}{a}{\k e} \definesortkey {\k E}{e}{a}{\k e}
+% \definesortkey {\l } {l}{a}{\l} \definesortkey {\L } {l}{a}{\l}
+%
+% \stopencoding
%D Polish CP-1250 encoding.
diff --git a/tex/context/base/font-uni.tex b/tex/context/base/font-uni.tex
index a0d393025..026f767f8 100644
--- a/tex/context/base/font-uni.tex
+++ b/tex/context/base/font-uni.tex
@@ -38,11 +38,11 @@
\stopmessages
\startmessages italian library: fonts
- 21: l'uso di (pdf)eTeX è più sicuro
+ 21: l'uso di (pdf)eTeX è più sicuro
\stopmessages
\startmessages norwegian library: fonts
- 21: å bruke (pdf)eTeX er tryggere
+ 21: å bruke (pdf)eTeX er tryggere
\stopmessages
\startmessages french library: fonts
diff --git a/tex/context/base/lang-ini.tex b/tex/context/base/lang-ini.tex
index 6bfdabcef..469e90c53 100644
--- a/tex/context/base/lang-ini.tex
+++ b/tex/context/base/lang-ini.tex
@@ -96,16 +96,16 @@
\startmessages norwegian library: linguals
title: språk
- 1: orddelingsmønster -- for -- er lest inn (n=--,e=--,m=--)
- 2: ingen orddelingsmønster -- for -- (n=--,e=--,m=--) (--,--)
+ 1: orddelingsmønster -- for -- er lest inn (n=--,e=--,m=--)
+ 2: ingen orddelingsmønster -- for -- (n=--,e=--,m=--) (--,--)
3: orddelingsdefinisjon -- for -- er lest inn (n=--,e=--,m=--)
4: ingen orddelingsdefinisjon -- for -- (n=--,e=--,m=--)
- 5: orddelingsmønster for -- er ikke lest inn
- 6: språk -- er udefinert
- 7: språk spesifikk opsjon [--] introduserer et -- hopp
- 8: språk spesifikk opsjon [--] problemfritt tilføyd
- 9: språk -- er aktivt
- 10: orddelingsmønster -- er lest inn
+ 5: orddelingsmønster for -- er ikke lest inn
+ 6: spràk -- er udefinert
+ 7: spràk spesifikk opsjon [--] introduserer et -- hopp
+ 8: spràk spesifikk opsjon [--] problemfritt tilføyd
+ 9: spràk -- er aktivt
+ 10: orddelingsmønster -- er lest inn
\stopmessages
\startmessages romanian library: linguals
diff --git a/tex/context/base/m-r.tex b/tex/context/base/m-r.tex
new file mode 100644
index 000000000..fe208cf75
--- /dev/null
+++ b/tex/context/base/m-r.tex
@@ -0,0 +1,159 @@
+%D \module
+%D [ file=m-r,
+%D version=2006.06.06,
+%D title=\CONTEXT\ Modules,
+%D subtitle=R Support,
+%D author={Johan Sandblom \& Hans Hagen},
+%D date=\currentdate,
+%D copyright={PRAGMA / Johan Sandblom}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+\unprotect
+
+%D The following R-processor is a variation on Johan Sandblom's
+%D prototype.
+%D
+%D We can combine both variants in one macro definition. Also, we
+%D can minimize the number of runs by checking for a change.
+
+%D \starttyping
+%D \newcounter\Rnumber
+%D \newtoks\everyR
+%D
+%D \appendtoks
+%D \obeylines
+%D \to \everyR
+%D
+%D \def\startR {\dostartR\stopR \plusone}
+%D \def\startRhidden{\dostartR\stopRhidden\zerocount}
+%D
+%D \def\dostartR#1#2%
+%D {\bgroup
+%D \ifcase#2\relax\let\typeRout\relax\fi
+%D \obeylines
+%D \catcode`\%=\@@letter
+%D \catcode`\#=\@@letter
+%D \def\dostartR##1#1%
+%D {\doglobal\increment\Rnumber
+%D \edef\Rfile{\bufferprefix R-\Rnumber}%
+%D \bgroup
+%D \the\everyR
+%D \def\par{\rawcharacter{10}}%
+%D \immediate\openout\scratchwrite=\Rfile.r
+%D \immediate\write\scratchwrite{##1}%
+%D \immediate\closeout\scratchwrite
+%D \egroup
+%D \doifmode{*\v!first}\runR
+%D \typefile{\Rfile.rout}%
+%D \egroup}%
+%D \doifnextcharelse\relax\dostartR\dostartR}
+%D
+%D \def\runR
+%D {\executesystemcommand{texmfstart
+%D --ifchanged=\Rfile.r bin:R
+%D "-q --save --restore < \Rfile.r > \Rfile.rout"}}
+%D \stoptyping
+
+%D JS: The call to R has \type {-q} in order to prevent banner,
+%D \type {--save} to make sure it saves the workspace after the run,
+%D \type {--restore} to make sure it reads any workspace from a
+%D previous session.
+
+%D An easier and better solution is to use the buffering mechanisms:
+
+\def\Rbufferprefix{r-}
+\newcounter\nofRfiles
+
+\def\Rfile{\TEXbufferfile{\Rbufferprefix\nofRfiles}}%
+
+\def\startR
+ {\doglobal\increment\nofRfiles
+ \dostartbuffer[\Rbufferprefix\nofRfiles][startR][stopR]}
+
+\def\stopR
+ {\doifmode{*\v!first}\runR
+ \typefile{\Rfile.out}}
+
+\def\startRhidden
+ {\doglobal\increment\nofRfiles
+ \dostartbuffer[\Rbufferprefix\nofRfiles][startRhidden][stopRhidden]}
+
+\def\stopRhidden
+ {\doifmode{*\v!first}\runR}
+
+\def\runR
+ {\executesystemcommand{texmfstart
+% --ifchanged=\Rfile\space bin:R
+ --ifchanged=\Rfile\space --direct R
+ "-q --save --restore < \Rfile\space > \Rfile.out"}}
+
+\protect \doifnotmode{demo}{\endinput}
+
+% Johan's test file:
+
+\starttext
+
+\startR
+a <- "bla"
+b <- "blabla"
+ls()
+\stopR
+
+bla bla
+
+\startRhidden
+rm(list=ls())
+save.image()
+\stopRhidden
+
+more bla
+
+\startR
+ls()
+ushape <- c(rexp(500000), 12-rexp(500000))
+pdf("ushape.pdf")
+par(mfrow=c(1,2))
+hist(ushape)
+plot(density(ushape), main="Density")
+dev.off()
+\stopR
+
+\input tufte \par \input knuth
+
+\startR
+x <- rnorm(900)
+y <- rexp(900)
+# test comment
+f <- gl(9,9,900)
+summary(aov(y~x+Error(f)))
+library(lattice)
+pdf("lattice.pdf")
+xyplot(y~x|f)
+dev.off()
+\stopR
+
+\placefigure{}{\externalfigure[lattice]}
+\placefigure{}{\externalfigure[ushape]}
+
+\input tufte
+
+\startR
+(test <- ".*\\\\ []{}=?!+%#|<|>@$")
+cat(test)
+\stopR
+
+\input bryson \par \input knuth
+
+\startR
+a.df <- data.frame(a=1:2, b=rnorm(2))
+a.df$a
+testfunction <- function(a=NULL, ...) {
+ for(i in 1:length(a)) {
+ gsub(a[[i]], "([a-r]|[A-R])", "bla")}
+ print(a)}
+\stopR
+
+\stoptext
diff --git a/tex/context/base/meta-pdf.tex b/tex/context/base/meta-pdf.tex
new file mode 100644
index 000000000..1c76075a9
--- /dev/null
+++ b/tex/context/base/meta-pdf.tex
@@ -0,0 +1,3203 @@
+%D \module
+%D [ file=meta-pdf,
+%D version=2006.06.07,
+%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 In due time this file will replace \type {supp-pdf} and
+%D \type {supp-mpe}.
+
+\input supp-pdf
+\input supp-mpe
+
+\endinput
+
+%D To be tested: texopt.rb on this file.
+
+%D Prelude to an optimized version:
+
+%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.
+
+%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 \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 \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.
+
+%D Some day I'll figure out a better solution (line by line reading
+%D using \ETEX).
+
+\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}
+
+\def\docleanupMPargument#1% we need this because args can have [ or ] pre/appended
+ {\expandafter\edef\csname\@@MP\the\nofMPsegments\number#1\endcsname
+ {\csname\@@MP\the\nofMPsegments\number#1\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}
+
+%D curly braces and squarly brackets are stored in the argument stack
+%D as part of strings, for instance in:
+%D
+%D \starttyping
+%D /fshow {exch findfont exch scalefont setfont show}bind def
+%D [3 3 ] 0 setdash
+%D \stoptyping
+%D
+%D but we need to keep them in situation like
+%D
+%D \starttyping
+%D ([bla bla] bla bla) ec-lmr10 9.96265 fshow
+%D ({bla bla} bla bla) ec-lmr10 9.96265 fshow
+%D \stoptyping
+%D
+%D So, when we store the snippets, we keep the special tokens, and
+%D when needed we either ignore or obey them
+
+\bgroup
+\catcode`\|=\@@comment
+\catcode`\%=\@@active
+\catcode`\[=\@@active
+\catcode`\]=\@@active
+\catcode`\{=\@@active
+\catcode`\}=\@@active
+\catcode`B=\@@begingroup
+\catcode`E=\@@endgroup
+\gdef\keepMPspecials|
+ B\let%\letterpercent|
+ \def[B\noexpand[E|
+ \def]B\noexpand]E|
+ \def{B\noexpand{E|
+ \def}B\noexpand}EE
+\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
+ {\keepMPspecials
+ \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}
+
+\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
+ \cleanupMPconcat
+ \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
+ \let\ \relax % mp breaks long lines and appends a \
+ \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
+ \ignoreMPspecials
+ \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.\footnote{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\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 $X$, 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 $X$ 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 $X$ 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\scratchdimen 4
+ \or
+ \multiply\scratchdimen 2
+ \else
+ \expandafter\doMPreadjustdimen
+ \fi}
+
+\def\doMPreadjustdimen
+ {\ifnum\MPscratchCnt>2
+ \divide\scratchdimen 2
+ \advance\MPscratchCnt \minusone
+ \expandafter\doMPreadjustdimen
+ \fi}
+
+\def\MPreciprocaldeterminant
+ {\scratchdimen\withoutpt\the\dimen0 \dimen6 % s_x*s_y
+ \advance\scratchdimen - \withoutpt\the\dimen2 \dimen4 % s_x*s_y - r_x*r_y
+ \ifdim\scratchdimen<\zeropoint % we need a positive dimension
+ \scratchdimen-\scratchdimen % for \MPadjustdimen (?)
+ \doMPreciprocal
+ \scratchdimen-\scratchdimen
+ \else
+ \doMPreciprocal
+ \fi
+ \edef\MPreciprocal{\withoutpt\the\scratchdimen}}
+
+\newcount\MPnumerator \MPnumerator = 1073741824 % 2^{30}
+
+% todo: dimexpr
+
+\def\doMPreciprocal % replace \scratchdimen with its reciprocal
+ {\ifdim\scratchdimen=\onepoint \else
+ \MPadjustdimen
+ \scratchcounter\MPnumerator
+ \divide\scratchcounter\scratchdimen
+ \scratchdimen1\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\cleanupMPconcat
+ {\ignoreMPspecials
+ \docleanupMPargument1%
+ \docleanupMPargument6%
+ \keepMPspecials}
+
+\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:
+
+%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, $r_x$, $r_y$, $s_x$, $s_y$ 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)
+ % \MPreciprocal contains precomputed 1/D:
+ \dimen18=\MPreciprocal\dimen18
+ \dimen14=\MPreciprocal\dimen14
+ \edef#2{\withoutpt\the\dimen18}% % p_x^\prime
+ \edef#4{\withoutpt\the\dimen14}} % p_y^\prime
+
+% faster but not that often used
+%
+% \def\doMPconcat#1#2#3#4%
+% {\dimen12\dimexpr#1\points-\dimen 8\relax % p_x-t_x
+% \dimen14\dimexpr#3\points-\dimen10\relax % p_y-t_y
+% \dimen18\dimexpr\withoutpt\the\dimen6\dimen12-\withoutpt\the\dimen4\dimen14\relax % s_y(p_x-t_x)-r_y(p_y-t_y)
+% \dimen14\dimexpr\withoutpt\the\dimen0\dimen14-\withoutpt\the\dimen2\dimen12\relax % s_x(p_y-t_y)-r_x(p_x-t_x)
+% \edef#2{\withoutpt\the\dimexpr\MPreciprocal\dimen18\relax}% % p_x^\prime
+% \edef#4{\withoutpt\the\dimexpr\MPreciprocal\dimen14\relax}} % 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}
+
+\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
+ \cleanupMPconcat
+ \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
+ \xdef\MPheight{\zeropoint}%
+ \xdef\MPwidth {\zeropoint}%
+ \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}
+
+\let\setMPextensions\relax
+
+\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
+ \setMPextensions
+ \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
+ \ifx\everyPDFxform\undefined\else\the\everyPDFxform\fi
+ \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
+
+%D \module
+%D [ file=supp-mpe,
+%D version=1999.07.10,
+%D title=\CONTEXT\ Support Macros,
+%D subtitle=METAPOST Special Extensions,
+%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.
+
+% fuzzy and complicating is the fact that we need to support
+% context as well as mptopdf, so we cannot fall back on the
+% special drivers and color module (although there may be
+% good reasons to use a smaller context instead); also,
+% shading is handled here while it should move to the special
+% driver - to do!
+
+%D This module is still experimental and deals with some
+%D extensions to \METAPOST. When using \POSTSCRIPT\ output,
+%D these extensions can be supplied by means of proper
+%D preamble definitions, but when producing \PDF\ we have to
+%D set up the appropriate datastructures ourselves. It acts as
+%D a plug in into \type {supp-pdf}. As soon as we need more
+%D extensions, we will generalize these macro. Some
+%D definitions will move to the special drivers.
+
+%D For usage in plain \TEX, say something:
+%D
+%D \starttyping
+%D \input supp-pdf
+%D \input supp-mpe
+%D
+%D \MPcmykcolorstrue
+%D \MPspotcolorstrue
+%D \chardef\makeMPintoPDFobject\plusone
+%D \stoptyping
+
+\writestatus{loading}{MetaPost Special Extensions}
+
+%D We implement extensions by using the \METAPOST\ special
+%D mechanism. Opposite to \TEX's specials, the \METAPOST\ ones
+%D are flushed before or after the graphic data, but thereby
+%D are no longer connected to a position.
+%D
+%D We implement specials by overloading the \type {fill}
+%D operator. By counting the fills, we can let the converter
+%D treat the appropriate fill in a special way. The
+%D specification of the speciality can have two forms,
+%D determined by the setting of a boolean variable:
+%D
+%D \starttyping
+%D _inline_specials_ := false ; % comment like code (default)
+%D _inline_specials_ := true ; % command like code
+%D \stoptyping
+%D
+%D When the specification is embedded as comment, it looks
+%D like:
+%D
+%D \starttyping
+%D %%MetaPostSpecial <size> <data> <number> <identifier>
+%D \stoptyping
+%D
+%D The in||line alternative is more tuned for \POSTSCRIPT,
+%D since it permits us to define a macro \type {special}.
+%D
+%D \starttyping
+%D inline : <data> <number> <identifier> <size> special
+%D \stoptyping
+%D
+%D The \type {identifier} determines what to do, and the data
+%D can be used to accomplish this. A type~2 shading function
+%D has identifier~2. Alltogether, the number of parameters is
+%D specified in \type {size}. The \type {number} is the number
+%D of the fill that needs the special treatment. For a type~2
+%D and~3 shaded fill, the datablock contains the following
+
+%D data:
+%D
+%D \starttyping
+%D from to n inner_r g b x y outer_r g b x y
+%D from to n inner_r g b x y radius outer_r g b x y radius
+%D \stoptyping
+%D
+%D The implementation below saves the data on the stack in
+%D a way similar to the macros in \type {supp-pdf.tex}, and
+%D just overload a few already defined handlers. That way,
+%D the existing macros are still generic. \footnote {Actually,
+%D the macros here are just as generic.}
+%D
+%D Currently the only extension concerns shading, which is
+%D accomplished by handling yet another value of \type
+%D {\finiMPpath}. The recource disctionary is stored and
+%D later picked up by the general \CONTEXT\ figure inclusion
+%D macros.
+
+\unprotect
+
+%D The \type {%%MetaPostSpecials: version.revision signal} line
+%D triggers this module into handling color specifications kind
+%D of special. We need this safeguard for non||special
+%D usage.
+
+\chardef\MPspecialversion = 0 % specials when >1
+\chardef\MPspecialrevision = 0 % specials when >1
+\chardef\MPspecialsignal = 0 % passed on by graphic
+
+\chardef\inlineMPspecials = 1 % only needed for stack resetting
+
+%D This macro handles the special definitions that are
+%D passed as comment.
+
+\def\dohandleMPspecialcomment#1
+ {\setMPargument{#1}%
+ \advance\scratchcounter \minusone
+ \ifcase\scratchcounter
+ \handleMPspecialcommand
+ \donetrue
+ \doresetMPstack
+ \let\handleMPsequence\dohandleMPsequence
+ \expandafter\handleMPsequence
+ \else
+ \expandafter\dohandleMPspecialcomment
+ \fi}
+
+\def\handleMPspecialcomment #1 % number of arguments
+ {\doresetMPstack
+ \scratchcounter#1\relax
+ \ifcase\scratchcounter % when zero, inline shading is used
+ \chardef\inlineMPspecials\plusone
+ \let\handleMPsequence\dohandleMPsequence
+ \expandafter\handleMPsequence
+ \else
+ \chardef\inlineMPspecials\zerocount
+ \expandafter\dohandleMPspecialcomment
+ \fi}
+
+%D When defined inline, we use another macro to handle the
+%D definitions. Actually, this macro is called by the
+%D previous ones.
+
+\def\handleMPspecialcommand
+ {\ifcase\inlineMPspecials\or
+ \advance\nofMParguments \minusone % pop the size
+ \fi
+ \ifundefined\MPspecial
+ \message{[unknown \MPspecial]}%
+ \else
+ \csname\MPspecial\endcsname
+ \fi
+ \ifcase\inlineMPspecials
+ \doresetMPstack % 0
+ \else
+ \resetMPstack % 1
+ \fi}
+
+%D This macro triggers special support. Currently, the
+%D version and revision number are not used. Any version number
+%D greater than zero will enable special support.
+
+\newconditional\manyMPspecials % \settrue\manyMPspecials
+
+\def\handleMPspecialscomment #1.#2 #3 % version.revision signal #4=div=1000|10000
+ {\doresetMPstack
+ \chardef\MPspecialversion #1%
+ \chardef\MPspecialrevision#2%
+ \chardef\MPspecialsignal #3%
+ \let\handleMPsequence\dohandleMPsequence
+ \ifnum#1=\plusone
+ \expandafter\handleMPsequence
+ \else
+ \expandafter\handleMPspecialscommentx
+ \fi}
+
+\def\handleMPspecialscommentx #1 % version 2
+% {\doifelsedoifelse{#1}{10000}{\settrue\manyMPspecials}{\setfalse\manyMPspecials}% local
+ {\ifnum10000=0#1\relax\settrue\manyMPspecials\else\setfalse\manyMPspecials\fi
+ \handleMPsequence}
+
+% one can say (in meta-ini):
+%
+% \prependtoks
+% _special_div_ := 1000\ifconditional\manyMPspecials0\fi ;
+% \to \MPextensions
+
+%D In case of \PDF, we need to prepare resourcs.
+
+\newtoks\MPstartresources
+\newtoks\MPstopresources
+
+\def\startMPresources
+ {\the\MPstartresources
+ \ifx\currentPDFresources\empty\else
+ \message{[unused resources]}%
+ \fi
+ \global\let\currentPDFresources\empty}
+
+\def\stopMPresources
+ {\let\currentPDFresources\empty
+ \the\MPstopresources}
+
+%D Since colors are not subjected to transformations, we can
+%D only use colors as signal. In our case, we use a dummy colored
+%D path with a red color component of \type {0.n}, so \type
+%D {0.001} is the first path and \type {0.010} the tenth. Since
+%D \METAPOST strips trailing zeros, we have to padd the string.
+
+\newif\ifMPcmykcolors
+\newif\ifMPspotcolors
+
+\ifx\normalhandleMPrgbcolor\undefined % in case we reload this module
+
+ \let\normalhandleMPrgbcolor \handleMPrgbcolor
+ \let\normalhandleMPcmykcolor\handleMPcmykcolor
+ \let\normalhandleMPgraycolor\handleMPgraycolor
+ \let\normalhandleMPspotcolor\handleMPspotcolor
+
+\fi
+
+%D When we are using \CONTEXT, we will fall back to the
+%D better color conversion routines. This also has the advantage
+%D that we don't have to parse and convert the file. In this
+%D alternative, \type {\!MP} is not (yet) supported. Because
+%D we can (for efficiency reasons) turn off strokecolor,
+%D something we cannot do in \METAPOST\ converted code.
+
+\newif\ifPDFMPstrokecolor \PDFMPstrokecolortrue
+
+%D [This code should move to meta-ini.]
+
+\ifCONTEXT % we can use this for a better xgstate handling
+
+ \def\checkPDFMPstrokecolor
+ {\ifPDFMPstrokecolor \PDFstrokecolortrue \fi}
+
+ \def\normalhandleMPrgbcolor
+ {{\checkPDFMPstrokecolor\execcolorR\gMPa1:\gMPa2:\gMPa3:0:0\od}}
+
+ \def\normalhandleMPcmykcolor
+ {{\checkPDFMPstrokecolor\execcolorC\gMPa1:\gMPa2:\gMPa3:\gMPa4:0:0\od}}
+
+ \def\normalhandleMPgraycolor
+ {{\checkPDFMPstrokecolor\execcolorS\gMPa1:0:0\od}}
+
+ \def\normalhandleMPspotcolor % ???
+ {{\checkPDFMPstrokecolor\execcolorP\gMPa1:\gMPa2:\gMPa3:\gMPa4:0:0\od}}
+
+\fi
+
+% In the previous macros we use the special drivers. A more
+% direct approach would have been:
+%
+% \def\doPDFstartrgbcolormode#1#2#3%
+% {\PDFcode{#1 #2 #3 rg #1 #2 #3 RG}}
+%
+% \def\doPDFstartcmykcolormode#1#2#3#4%
+% {\PDFcode{#1 #2 #3 #4 k #1 #2 #3 #4 K}}
+%
+% \def\doPDFstartgraycolormode#1%
+% {\PDFcode{#1 g #1 G}}
+%
+% \appendtoks
+% \let\dostartrgbcolormode \doPDFstartrgbcolormode
+% \let\dostartcmykcolormode\doPDFstartcmykcolormode
+% \let\dostartgraycolormode\doPDFstartgraycolormode
+% \to \everyMPtoPDFconversion
+
+%D Now we can handle special color signals. We only do this
+%D when special are detected.
+
+% \def\MPrgbnumber#1{\expandafter\doMPrgbnumber#1000.0000\relax}
+% \def\doMPrgbnumber#1.#2#3#4#5\relax{#2#3#4}
+
+%D We cannot use \type {\everyMPtoPDFconversion} because in \MPTOPDF\
+%D we don't have the \type {\appendtoks} macro available.
+
+\def\setMPextensions
+ {\ifconditional\manyMPspecials
+ \def\MPrgbnumber##1{\expandafter\doMPrgbnumber##10000.00000\relax}%
+ \def\doMPrgbnumber##1.##2##3##4##5##6\relax{##2##3##4##5}%
+ \else
+ \def\MPrgbnumber##1{\expandafter\doMPrgbnumber##1000.0000\relax}%
+ \def\doMPrgbnumber##1.##2##3##4##5\relax{##2##3##4}%
+ \fi}
+
+%D The naive case looks like:
+%D
+%D \starttyping
+%D \def\handleMPrgbcolor%
+%D {\setMPcolor
+%D \ifcase\MPspecialversion
+%D \resetMPcolor\normalhandleMPrgbcolor
+%D \else\ifnum\MPrgbnumber\lastMPrvalue=\MPspecialsignal
+%D % consider it to be a signal
+%D \else
+%D \resetMPcolor\normalhandleMPrgbcolor
+%D \fi\fi}
+%D \stoptyping
+%D
+%D However, since we want \CMYK\ support, we will use the
+%D following implementation:
+
+% \def\setMPcolor
+% {\edef\lastMPrvalue{\gMPa1}%
+% \edef\lastMPgvalue{\gMPa2}%
+% \edef\lastMPbvalue{\gMPa3}}
+%
+% speed up (hardly called, so no let is needed)
+
+\def\setMPcolor
+ {\edef\lastMPrvalue{\csname\@@MP01\endcsname}%
+ \edef\lastMPgvalue{\csname\@@MP02\endcsname}%
+ \edef\lastMPbvalue{\csname\@@MP03\endcsname}}
+
+\def\zeroMPrgbvalue{0.0}
+
+\def\resetMPcolor
+ {\let\lastMPrvalue\zeroMPrgbvalue
+ \let\lastMPgvalue\zeroMPrgbvalue
+ \let\lastMPbvalue\zeroMPrgbvalue}
+
+\resetMPcolor
+
+\def\@@MPSK{@MPSK@}
+\def\@@MPSP{@MPSP@}
+
+\def\interceptMPcmykcolor % todo : \ifMPcmykcolors
+ {\ifcase\MPrgbnumber\lastMPgvalue
+ % cannot happen
+ \or
+ % 1 == cmyk color spec
+ \ifMPcmykcolors \dointerceptMPcmykcolor \fi
+ \or
+ % 2 == spot color
+ \ifMPspotcolors \dointerceptMPspotcolor \fi
+ \or
+ % 3 == rgb transparency
+ \invokeMPtransparencyspecial
+ \or
+ % 4 == cmyk transparency
+ \ifMPcmykcolors \invokeMPtransparencyspecial \fi
+ \or
+ % 5 == spot transparency
+ \ifMPspotcolors \invokeMPtransparencyspecial \fi
+ \else
+ % \writestatus{MPtoPDF}{unknown direct special}%
+ \fi}
+
+% ifcsname
+
+\def\dointerceptMPcmykcolor
+ {\revokeMPtransparencyspecial
+ \@EA\ifx\csname\@@MPSK\number\MPrgbnumber\lastMPbvalue\endcsname\relax\else
+ \@EA\@EA\@EA\setMPcmyk\csname\@@MPSK\number\MPrgbnumber\lastMPbvalue\endcsname
+ \normalhandleMPcmykcolor
+ \fi}
+
+\def\dointerceptMPspotcolor
+ {\revokeMPtransparencyspecial
+ \@EA\ifx\csname\@@MPSP\number\MPrgbnumber\lastMPbvalue\endcsname\relax\else
+ \@EA\@EA\@EA\setMPspot\csname\@@MPSP\number\MPrgbnumber\lastMPbvalue\endcsname
+ \normalhandleMPspotcolor
+ \fi}
+
+\def\handleMPrgbcolor
+ {\resetMPcolor
+ \ifcase\MPspecialversion
+ \normalhandleMPrgbcolor
+ \else
+ \setMPcolor
+ \ifnum\MPrgbnumber\lastMPrvalue=\MPspecialsignal\relax
+ \interceptMPcmykcolor
+ \else
+ \revokeMPtransparencyspecial
+ \normalhandleMPrgbcolor
+ \fi
+ \fi}
+
+\def\handleMPgraycolor
+ {\resetMPcolor
+ \ifcase\MPspecialversion \else \revokeMPtransparencyspecial \fi
+ \normalhandleMPgraycolor}
+
+\def\handleMPcmykcolor
+ {\resetMPcolor
+ \ifcase\MPspecialversion \else \revokeMPtransparencyspecial \fi
+ \normalhandleMPcmykcolor}
+
+%D Specials are define and recalled using:
+
+\def\MPspecial
+ {MP special \gMPs\nofMParguments}
+
+\def\defineMPspecial#1#2%
+ {\setvalue{MP special #1}{#2}}
+
+%D The path processing macro is slightly extended.
+
+\newtoks \invokeMPspecials
+
+\def\finishMPpath
+ {\PDFcode
+ {\ifcase\finiMPpath W n\or S\or f\or B\else W n\fi
+ \extraMPpathcode}}
+
+\def\processMPpath
+ {\checkMPpath % !
+ \ifcase\nofMPsegments\else
+ \let\extraMPpathcode\empty
+ \ifcase\MPspecialversion\else
+ \ifnum\MPrgbnumber\lastMPrvalue=\MPspecialsignal
+ \ifnum\MPrgbnumber\lastMPgvalue>10 % really needed
+ \scratchcounter\MPrgbnumber\lastMPbvalue
+ \edef\currentMPspecial{\the\scratchcounter}%
+ \ifnum\finiMPpath=2 % to outer level
+ \the\invokeMPspecials
+ \fi
+ \fi
+ \fi
+ \fi
+ \flushMPpath
+ \closeMPpath
+ \finishMPpath
+ \fi
+ \let\handleMPsequence\dohandleMPsequence
+ \resetMPstack
+ \nofMPsegments0
+ \handleMPsequence}
+
+%D Shading is an example of a more advanced graphic feature,
+%D but users will seldom encounter those complications. Here
+%D we only show a few simple examples, but many other
+%D alternatives are possible by setting up the functions built
+%D in \PDF\ in the appropriate way.
+%D
+%D Shading has to do with interpolation between two or more
+%D points or user supplied ranges. In \PDF, the specifications
+%D of a shade has to be encapsulated in objects and passed on
+%D as resources. This is a \PDF\ level 1.3. feature. One can
+%D simulate three dimensional shades as well and define simple
+%D functions using a limited set of \POSTSCRIPT\ primitives.
+%D Given the power of \METAPOST\ and these \PDF\ features, we
+%D can achieve superb graphic effects.
+%D
+%D Since everything is hidden in \TEX\ and \METAPOST\ graphics,
+%D we can stick to high level \CONTEXT\ command, as shown in
+%D the following exmples.
+%D
+%D \startbuffer
+%D \startuniqueMPgraphic{CircularShade}
+%D path p ; p := unitsquare xscaled \overlaywidth yscaled \overlayheight ;
+%D circular_shade(p,0,.2red,.9red) ;
+%D \stopuniqueMPgraphic
+%D
+%D \startuniqueMPgraphic{LinearShade}
+%D path p ; p := unitsquare xscaled \overlaywidth yscaled \overlayheight ;
+%D linear_shade(p,0,.2blue,.9blue) ;
+%D \stopuniqueMPgraphic
+%D
+%D \startuniqueMPgraphic{DuotoneShade}
+%D path p ; p := unitsquare xscaled \overlaywidth yscaled \overlayheight ;
+%D linear_shade(p,2,.5green,.5red) ;
+%D \stopuniqueMPgraphic
+%D \stopbuffer
+%D
+%D \typebuffer
+%D
+%D \getbuffer
+%D
+%D These graphics can be hooked into the overlay mechanism,
+%D which is available in many commands.
+%D
+%D \startbuffer
+%D \defineoverlay[demo 1][\uniqueMPgraphic{CircularShade}]
+%D \defineoverlay[demo 2][\uniqueMPgraphic {LinearShade}]
+%D \defineoverlay[demo 3][\uniqueMPgraphic {DuotoneShade}]
+%D \stopbuffer
+%D
+%D \typebuffer
+%D
+%D \getbuffer
+%D
+%D These backgrounds can for instance be applied to \type
+%D {\framed}:
+%D
+%D \startbuffer
+%D \setupframed[width=3cm,height=2cm,frame=off]
+%D \startcombination[3*1]
+%D {\framed[backgroundachtergrond=demo 1]{\bfd \white Demo 1}} {}
+%D {\framed[backgroundachtergrond=demo 2]{\bfd \white Demo 2}} {}
+%D {\framed[backgroundachtergrond=demo 3]{\bfd \white Demo 3}} {}
+%D \stopcombination
+%D \stopbuffer
+%D
+%D \typebuffer
+%D
+%D \startlinecorrection
+%D \getbuffer
+%D \stoplinecorrection
+%D
+%D There are a few more alternatives, determined by the second
+%D parameter passed to \type {circular_shade} and alike.
+%D
+%D \def\SomeShade#1#2#3#4#5%
+%D {\startuniqueMPgraphic{Shade-#1}
+%D width := \overlaywidth ;
+%D height := \overlayheight ;
+%D path p ; p := unitsquare xscaled width yscaled height ;
+%D #2_shade(p,#3,#4,#5) ;
+%D \stopuniqueMPgraphic
+%D \defineoverlay[Shade-#1][\uniqueMPgraphic{Shade-#1}]%
+%D \framed[backgroundachtergrond=Shade-#1,width=2cm,height=2cm,frame=off]{}}
+%D
+%D \startlinecorrection
+%D \startcombination[5*1]
+%D {\SomeShade{10}{circular}{0}{.3blue}{.9blue}} {circular 0}
+%D {\SomeShade{11}{circular}{1}{.3blue}{.9blue}} {circular 1}
+%D {\SomeShade{12}{circular}{2}{.3blue}{.9blue}} {circular 2}
+%D {\SomeShade{13}{circular}{3}{.3blue}{.9blue}} {circular 3}
+%D {\SomeShade{14}{circular}{4}{.3blue}{.9blue}} {circular 4}
+%D \stopcombination
+%D \stoplinecorrection
+%D
+%D \blank
+%D
+%D \startlinecorrection
+%D \startcombination[5*1]
+%D {\SomeShade{20}{circular}{0}{.9green}{.3green}} {circular 0}
+%D {\SomeShade{21}{circular}{1}{.9green}{.3green}} {circular 1}
+%D {\SomeShade{22}{circular}{2}{.9green}{.3green}} {circular 2}
+%D {\SomeShade{23}{circular}{3}{.9green}{.3green}} {circular 3}
+%D {\SomeShade{24}{circular}{4}{.9green}{.3green}} {circular 4}
+%D \stopcombination
+%D \stoplinecorrection
+%D
+%D \blank
+%D
+%D \startlinecorrection
+%D \startcombination[4*1]
+%D {\SomeShade{30}{linear}{0}{.3red}{.9red}} {linear 0}
+%D {\SomeShade{31}{linear}{1}{.3red}{.9red}} {linear 1}
+%D {\SomeShade{32}{linear}{2}{.3red}{.9red}} {linear 2}
+%D {\SomeShade{33}{linear}{3}{.3red}{.9red}} {linear 3}
+%D \stopcombination
+%D \stoplinecorrection
+%D
+%D These macros closely cooperate with the \METAPOST\ module
+%D \type {mp-spec.mp}, which is part of the \CONTEXT\
+%D distribution.
+%D
+%D The low level (\PDF) implementation is based on the \TEX\
+%D based \METAPOST\ to \PDF\ converter. Shading is supported
+%D by overloading the \type {fill} operator as implemented
+%D earlier. In \PDF\ type~2 and~3 shading functions are
+%D specified in terms of:
+%D
+%D \starttabulate[|Tl|l|]
+%D \NC /Domain \NC sort of meeting range \NC \NR
+%D \NC /C0 \NC inner shade \NC \NR
+%D \NC /C1 \NC outer shade \NC \NR
+%D \NC /N \NC smaller values, bigger inner circles \NC \NR
+%D \stoptabulate
+
+\newcount\currentPDFshade % 0 % global (document wide) counter
+\let\currentMPshades\empty
+
+\def\startMPshading#1%
+ {\edef\currentMPspecial{\gMPs{#1}}}
+
+\def\stopMPshading
+ {\global\advance\currentPDFshade \plusone
+ \setxvalue{obj:Sh:\currentMPspecial}%
+ {/Sh\the\currentPDFshade\space\the\pdflastobj\space0 R }%
+ \setxvalue{mps:Sh:\currentMPspecial}%
+ {\the\currentPDFshade}}
+
+\appendtoks
+ \global\let\currentMPshades\empty
+\to \MPstartresources
+
+\appendtoks
+ \ifx\currentMPshades\empty \else
+ \xdef\currentPDFresources{\currentPDFresources
+ /Shading <<\currentMPshades>>}%
+ \fi
+\to \MPstopresources
+
+\def\invokeMPshadespecial
+ {\ifundefined{mps:Sh:\currentMPspecial}\else
+ \edef\currentMPshade{\getvalue{obj:Sh:\currentMPspecial}}%
+ \doifinstringelse\currentMPshade\currentMPshades \donothing
+ {\xdef\currentMPshades{\currentMPshades\currentMPshade}}%
+ \def\extraMPpathcode{/Sh\getvalue{mps:Sh:\currentMPspecial} sh Q}%
+ \chardef\finiMPpath\zerocount
+ \PDFcode{q /Pattern cs}%
+ \fi}
+
+\appendtoks \invokeMPshadespecial \to \invokeMPspecials
+
+%D We need to convert the \CMYK\ specials into colors, because
+%D we have to do it twice, we define a macro.
+
+\def\checkMPshadingcolor#1#2#3#4#5%
+ {\edef\tempMPrvalue{\csname\@@MP0#1\endcsname}%
+ \edef\tempMPgvalue{\csname\@@MP0#2\endcsname}%
+ \edef\tempMPbvalue{\csname\@@MP0#3\endcsname}%
+ \global\let\MPresolvedspace\MPgrayspace
+ \global\let\MPresolvedcolor\!!zerocount
+ \ifnum\MPrgbnumber\tempMPrvalue=\MPspecialsignal\relax
+ \ifcase\MPrgbnumber\tempMPgvalue
+ \or % 1 = cmyk
+ \ifMPcmykcolors
+ \expanded{\resolveMPcmykcolor\getvalue{\@@MPSK\number\MPrgbnumber\tempMPbvalue}}\end
+ \fi
+ \or % 2 = spot
+ \ifMPspotcolors
+ \expanded{\resolveMPspotcolor\getvalue{\@@MPSP\number\MPrgbnumber\tempMPbvalue}}\end
+ \fi
+ \or
+ % 3 = rgb transparency
+ % to do
+ \or
+ % 4 == cmyk transparency
+ % \ifMPcmykcolors
+ % to do
+ % \fi
+ \or
+ % 5 == spot transparency
+ % \ifMPspotcolors
+ % to do
+ % \fi
+ \fi
+ \else
+ \ifx\tempMPrvalue\tempMPgvalue
+ \ifx\tempMPrvalue\tempMPbvalue
+ \expanded{\resolveMPgraycolor\tempMPbvalue}\end
+ \else
+ \expanded{\resolveMPrgbcolor\tempMPrvalue\space\tempMPgvalue\space\tempMPbvalue}\end
+ \fi
+ \else
+ \expanded{\resolveMPrgbcolor\tempMPrvalue\space\tempMPgvalue\space\tempMPbvalue}\end
+ \fi
+ \fi
+ \let#4\MPresolvedcolor
+ \let#5\MPresolvedspace}
+
+%D We also need to make sure that we have two \RGB\ or
+%D \CMYK colors, since we have to set the colorspace.
+
+\def\setMPshadingcolors#1#2#3#4#5#6% color space
+ {\checkMPshadingcolor{#1}{#2}{#3}\MPshadeAc\MPshadeAs
+ \checkMPshadingcolor{#4}{#5}{#6}\MPshadeBc\MPshadeBs
+ \ifx\MPshadeAs\MPshadeBs
+ \let\MPshadeA\MPshadeAc
+ \let\MPshadeB\MPshadeBc
+ \let\MPshadeC\MPshadeAs
+ \else\ifx\MPshadeAs\MPgrayspace
+ \ifx\MPshadeBs\MPrgbspace
+ \edef\MPshadeA{\MPshadeAc\space\MPshadeAc\space\MPshadeAc}%
+ \else
+ \negatecolorcomponent\MPshadeAc
+ \edef\MPshadeA{0 0 0 \MPshadeAc}%
+ \fi
+ \let\MPshadeB\MPshadeBc
+ \let\MPshadeC\MPshadeBs
+ \else\ifx\MPshadeBs\MPgrayspace
+ \let\MPshadeA\MPshadeAc
+ \ifx\MPshadeAs\MPrgbspace
+ \edef\MPshadeB{\MPshadeBc\space\MPshadeBc\space\MPshadeBc}%
+ \else
+ \negatecolorcomponent\MPshadeBc
+ \edef\MPshadeB{0 0 0 \MPshadeBc}%
+ \fi
+ \let\MPshadeC\MPshadeAs
+ \else
+ % different color spaces
+ \def\MPshadeA{1}%
+ \def\MPshadeB{1}%
+ \let\MPshadeC\MPgrayspace
+ \fi\fi\fi}
+
+\let\MPshadeA\MPcmykWhite
+\let\MPshadeB\MPcmykBlack
+\let\MPshadeC\MPgrayspace
+
+%D The reason why this macro is a bit complicates is that we
+%D handle black and white situations (otherwise we would have
+%D to use \CMYK\ b/w in case of a \CMYK\ shade).
+
+%D Here are the special handlers:
+
+\defineMPspecial{30}
+ {\startMPshading{14}% type 2
+ \setMPshadingcolors{4}{5}{6}{9}{10}{11}%
+ \immediate\pdfobj
+ {<</FunctionType 2
+ /Domain [\gMPs1 \gMPs2]
+ /C0 [\MPshadeA]
+ /C1 [\MPshadeB]
+ /N \gMPs3>>}%
+ \immediate\pdfobj
+ {<</ShadingType 2
+ /ColorSpace /\MPshadeC\space
+ /Function \the\pdflastobj\space 0 R
+ /Coords [\gMPs7 \gMPs8 \gMPs{12} \gMPs{13}]
+ /Extend [true true]>>}%
+ \stopMPshading}
+
+\defineMPspecial{31}
+ {\startMPshading{16}% type 3
+ \setMPshadingcolors{4}{5}{6}{10}{11}{12}%
+ \immediate\pdfobj
+ {<</FunctionType 2
+ /Domain [\gMPs1 \gMPs2]
+ /C0 [\MPshadeA]
+ /C1 [\MPshadeB]
+ /N \gMPs3>>}%
+ \immediate\pdfobj
+ {<</ShadingType 3
+ /ColorSpace /\MPshadeC\space
+ /Function \the\pdflastobj\space 0 R
+ /Coords [\gMPs7 \gMPs8 \gMPs9 \gMPs{13} \gMPs{14} \gMPs{15}]
+ /Extend [true true]>>}%
+ \stopMPshading}
+
+%D Figure inclusion is kind of strange to \METAPOST, but when
+%D Santiago Muelas started discussing this with me, I was able
+%D to cook up a solution using specials.
+
+\def\invokeMPfigurespecial%
+ {\getvalue{mps:gr:\currentMPspecial}} % or \relax
+
+\appendtoks \invokeMPfigurespecial \to \invokeMPspecials
+
+\defineMPspecial{10}
+ {\setxvalue{mps:gr:\gMPs8}%
+ {\noexpand\handleMPfigurespecial
+ {\gMPs1}{\gMPs2}{\gMPs3}{\gMPs4}{\gMPs5}{\gMPs6}{\gMPs7}%
+ \noexpand\setxvalue{mps:gr:\gMPs8}{}}}
+
+\def\handleMPfigurespecial#1#2#3#4#5#6#7% todo : combine with ext fig
+ {\vbox to \zeropoint
+ {\vss
+ \hbox to \zeropoint
+ {\ifcase\pdfoutput\or % will be hooked into the special driver
+ \doiffileelse{#7}
+ {\doifundefinedelse{mps:x:#7}
+ {\immediate\pdfximage\!!width\onebasepoint\!!height\onebasepoint{#7}%
+ \setxvalue{mps:x:#7}{\pdfrefximage\the\pdflastximage}}%
+ {\message{[reusing figure #7]}}%
+ \PDFcode{q #1 #2 #3 #4 #5 #6 cm}%
+ \rlap{\getvalue{mps:x:#7}}%
+ \PDFcode{Q}}
+ {\message{[unknown figure #7]}}%
+ \fi
+ \hss}}}
+
+%D An example of using both special features is the
+%D following.
+%D
+%D \starttyping
+%D \startMPpage
+%D externalfigure "hakker1b.png" scaled 22cm rotated 10 shifted (-2cm,0cm);
+%D externalfigure "hakker1b.png" scaled 10cm rotated -10 ;
+%D externalfigure "hakker1b.png" scaled 7cm rotated 45 shifted (8cm,12cm) ;
+%D path p ; p := unitcircle xscaled 15cm yscaled 20cm;
+%D path q ; q := p rotatedaround(center p,90) ;
+%D path r ; r := buildcycle(p,q) ; clip currentpicture to r ;
+%D path s ; s := boundingbox currentpicture enlarged 5mm ;
+%D picture c ; c := currentpicture ; currentpicture := nullpicture ;
+%D circular_shade(s,0,.2red,.9red) ;
+%D addto currentpicture also c ;
+%D \stopMPpage
+%D \stoptyping
+
+%D This is some experimental hyperlink driver that I wrote
+%D for Mark Wicks.
+
+\defineMPspecial{20}
+ {\setxvalue{mps:hl:\gMPs6}%
+ {\noexpand\handleMPhyperlink
+ {\gMPs1}{\gMPs2}{\gMPs3}{\gMPs4}{\gMPs5}%
+ \noexpand\setxvalue{mps:hl:\gMPs6}{}}}
+
+\def\handleMPhyperlink#1#2#3#4#5%
+ {%\ifcase\pdfoutput\or
+ \setbox\scratchbox\hbox
+ {\setbox\scratchbox\null
+ \scratchdimen#1\onebasepoint\scratchdimen-\scratchdimen
+ \advance\scratchdimen#3\onebasepoint
+ \wd\scratchbox\scratchdimen
+ \scratchdimen#2\onebasepoint\scratchdimen-\scratchdimen
+ \advance\scratchdimen#4\onebasepoint
+ \ht\scratchbox\scratchdimen
+ \incolorfalse
+ \gotobox{\box\scratchbox}[#5]}%
+ \setbox\scratchbox\hbox
+ {\scratchdimen\MPxoffset\onebasepoint\advance\scratchdimen#1\onebasepoint
+ \hskip\scratchdimen
+ \scratchdimen\MPyoffset\onebasepoint\advance\scratchdimen#2\onebasepoint
+ \raise\scratchdimen\box\scratchbox}%
+ \smashbox\scratchbox
+ \box\scratchbox
+ }%\fi}
+
+\def\invokeMPhyperlinkspecial%
+ {\getvalue{mps:hl:\currentMPspecial}} % or \relax
+
+\appendtoks \invokeMPhyperlinkspecial \to \invokeMPspecials
+
+%D Special number~1 is dedicated to \CMYK\ support. If you
+%D want to know why: look at this:
+%D
+%D \startbuffer[mp]
+%D fill fullcircle xyscaled (3cm,1cm) withcolor \MPcolor{test} ;
+%D \stopbuffer
+%D
+%D \startbuffer[cmyk]
+%D \startcombination[4*1]
+%D {\definecolor[test][c=1,y=.3,k=.3] \processMPbuffer[mp]} {c=1 y=.3 k=.3}
+%D {\definecolor[test][c=.9,y=.15] \processMPbuffer[mp]} {c=.9 y=.15}
+%D {\definecolor[test][c=.25,y=.8] \processMPbuffer[mp]} {c=.25 y=.8}
+%D {\definecolor[test][c=.45,y=.1] \processMPbuffer[mp]} {c=.45 y=.1}
+%D \stopcombination
+%D \stopbuffer
+%D
+%D \placefigure
+%D {\CMYK\ support disabled,
+%D conversion to \RGB.}
+%D {\setupcolors[cmyk=nee,state=start]\getbuffer[cmyk]}
+%D
+%D \placefigure
+%D {\CMYK\ support enabled,
+%D no support in \METAPOST.}
+%D {\setupcolors[cmyk=ja,mpcmyk=nee,state=start]\getbuffer[cmyk]}
+%D
+%D \placefigure
+%D {\CMYK\ support enabled,
+%D no conversion to \RGB,
+%D support in \METAPOST}
+%D {\setupcolors[cmyk=ja,state=start]\getbuffer[cmyk]}
+
+\defineMPspecial{1}
+ {\ifMPcmykcolors
+ \setxvalue{\@@MPSK\gMPs1}{\gMPs2 \gMPs3 \gMPs4 \gMPs5 }%
+ \fi}
+
+\def\setMPcmyk#1 #2 #3 #4 %
+ {\setvalue{\@@MP01}{#1}%
+ \setvalue{\@@MP02}{#2}%
+ \setvalue{\@@MP03}{#3}%
+ \setvalue{\@@MP04}{#4}}
+
+\defineMPspecial{2}
+ {\ifMPspotcolors
+ \setxvalue{\@@MPSP\gMPs1}{\gMPs2 \gMPs3 \gMPs4 \gMPs5 }% space is essential
+ \checkMPspot{\gMPs2}{\gMPs3}{\gMPs4}{\gMPs5}%
+ \fi}
+
+\def\setMPspot#1 #2 #3 #4 %
+ {\setvalue{\@@MP01}{#1}%
+ \setvalue{\@@MP02}{#2}%
+ \setvalue{\@@MP03}{#3}%
+ \setvalue{\@@MP04}{#4}}
+
+\def\checkMPspot#1#2#3#4%
+ {\expanded{\resolveMPspotcolor#1 #2 #3 #4}\end
+ \ifx\MPspotspace\MPresolvedspace
+ \edef\MPspotspacespec{/\MPspotspace\space}%
+ \doifinstringelse\MPspotspacespec\currentMPcolorspaces
+ \donothing\registerMPcolorspace
+ \fi}
+
+%D This special (number 50) passes positions to a tex file.
+%D This method uses a two||pass approach an (mis|)|used the
+%D context positioning macros. In \type {core-pos} we will
+%D implement the low level submacro needed.
+%D
+%D \startbuffer
+%D \definelayer[test]
+%D
+%D \setlayer
+%D [test]
+%D [x=\MPx{somepos-1},y=\MPy{somepos-1}]
+%D {Whatever we want here!}
+%D
+%D \setlayer
+%D [test]
+%D [x=\MPx{somepos-2},y=\MPy{somepos-2}]
+%D {Whatever we need there!}
+%D
+%D \startuseMPgraphic{oeps}
+%D draw fullcircle scaled 6cm withcolor red ;
+%D register ("somepos-1",1cm,2cm,center currentpicture) ;
+%D register ("somepos-2",4cm,3cm,(-1cm,-2cm)) ;
+%D \stopuseMPgraphic
+%D
+%D \framed[background=test,offset=overlay]{\useMPgraphic{oeps}}
+%D \stopbuffer
+%D
+%D \typebuffer
+%D
+%D Here the width and height are not realy used, but one can
+%D imagine situations where tex has to work with values
+%D calculated by \METAPOST.
+%D
+%D \startlinecorrection
+%D \getbuffer
+%D \stoplinecorrection
+%D
+%D Later we will implement a more convenient macro:
+%D
+%D \starttyping
+%D \setMPlayer [test] [somepos-1] {Whatever we want here!}
+%D \setMPlayer [test] [somepos-2] {Whatever we need there!}
+%D \stoptyping
+
+\ifx\dosavepositionwhd\undefined
+ \let\dosavepositionwhd\gobblesevenarguments
+\fi
+
+\defineMPspecial{50} % x y width height label
+ {\bgroup
+ \scratchdimen\MPllx\onebasepoint\scratchdimen-\scratchdimen
+ % \scratchdimen-\MPllx\onebasepoint % moet ook werken
+ \advance\scratchdimen\gMPs1\onebasepoint
+ \edef\x{\number\scratchdimen}%
+ \scratchdimen\gMPs2\onebasepoint
+ \scratchdimen-\scratchdimen
+ \advance\scratchdimen\MPury\onebasepoint
+ \edef\y{\number\scratchdimen}%
+ \scratchdimen\gMPs3\onebasepoint
+ \edef\w{\number\scratchdimen}%
+ \scratchdimen\gMPs4\onebasepoint
+ \edef\h{\number\scratchdimen}%
+ \dosavepositionwhd{\gMPs5}0\x\y\w\h0%
+ \egroup}
+
+%D Transparency support used specials 60 (rgb) and 61
+%D (cmyk).
+%D
+%D \startbuffer
+%D u := 2cm ; path p ; p := fullcircle scaled u shifted (u/4,0);
+%D
+%D fill p rotated 90 withcolor transparent(1,.5,yellow) ;
+%D fill p rotated 210 withcolor transparent(1,.5,green) ;
+%D fill p rotated 330 withcolor transparent(1,.5,blue) ;
+%D \stopbuffer
+%D
+%D \typebuffer
+%D
+%D \startlinecorrection \processMPbuffer \stoplinecorrection
+%D
+%D One can also communicate colors between \CONTEXT\ and
+%D \METAPOST:
+%D
+%D \startbuffer
+%D \definecolor[tcyan] [c=1,k=.2,t=.5]
+%D \definecolor[tmagenta][m=1,k=.2,t=.5]
+%D \definecolor[tyellow] [y=1,k=.2,t=.5]
+%D \stopbuffer
+%D
+%D \typebuffer \getbuffer
+%D
+%D \startbuffer
+%D u := 2cm ; path p ; p := fullcircle scaled u shifted (u/4,0);
+%D
+%D fill p rotated 90 withcolor \MPcolor{tcyan} ;
+%D fill p rotated 210 withcolor \MPcolor{tmagenta} ;
+%D fill p rotated 330 withcolor \MPcolor{tyellow} ;
+%D \stopbuffer
+%D
+%D \startlinecorrection \processMPbuffer \stoplinecorrection
+%D
+%D We save all the three components needed in one macro,
+%D just to save hash space.
+
+\def\@@MPST{@MPST@}
+
+\def\assignMPStransparency#1#2#3%
+ {\edef\PDFtransparencyidentifier{#1}%
+ \edef\PDFtransparencyreference {#2}%
+ \edef\PDFtransparencycolorspecs{#3}}
+
+\def\PDFtransparencyspec % todo
+ {\ifx\MPresolvedspace\MPgrayspace
+ \MPresolvedcolor\space g
+ \MPresolvedcolor\space G%
+ \else\ifx\MPresolvedspace\MPrgbspace
+ \MPresolvedcolor\space rg
+ \MPresolvedcolor\space RG%
+ \else\ifx\MPresolvedspace\MPcmykspace
+ \MPresolvedcolor\space k
+ \MPresolvedcolor\space K%
+ \else\ifx\MPresolvedspace\empty\else
+ /\MPresolvedspace\space cs
+ /\MPresolvedspace\space CS
+ \PDFgetspotcolorspec\MPresolvedcolor
+ \fi\fi\fi\fi}
+
+\defineMPspecial{3} % rgb
+ {\edef\currentMPspecial{\gMPs6}%
+ \presetPDFtransparency{\gMPs1}{\gMPs2}%
+ \expanded{\resolveMPrgbcolor\gMPs3 \gMPs4 \gMPs5}\end
+ \setevalue{\@@MPST\currentMPspecial}% was \setxvalue, bug !
+ {\noexpand\assignMPStransparency
+ {\PDFtransparencyidentifier}%
+ {\PDFtransparencyreference}%
+ {\PDFtransparencyspec}}}
+
+\defineMPspecial{4} % cmyk
+ {\edef\currentMPspecial{\gMPs7}%
+ \presetPDFtransparency{\gMPs1}{\gMPs2}%
+ \expanded{\resolveMPcmykcolor\gMPs3 \gMPs4 \gMPs5 \gMPs6}\end
+ \setevalue{\@@MPST\currentMPspecial}% was \setxvalue, bug !
+ {\noexpand\assignMPStransparency
+ {\PDFtransparencyidentifier}%
+ {\PDFtransparencyreference}%
+ {\PDFtransparencyspec}}}
+
+\defineMPspecial{5} % spot
+ {\edef\currentMPspecial{\gMPs7}%
+ \presetPDFtransparency{\gMPs1}{\gMPs2}%
+ \checkMPspot{\gMPs3}{\gMPs4}{\gMPs5}{\gMPs6}%
+ \setevalue{\@@MPST\currentMPspecial}% was \setxvalue, bug !
+ {\noexpand\assignMPStransparency
+ {\PDFtransparencyidentifier}%
+ {\PDFtransparencyreference}%
+ {\PDFtransparencyspec}}}
+
+% beware: for the moment only supported in pdftex; needs a cleanup!
+
+\def\registerMPcolorspace
+ {\doifobjectreferencefoundelse{PDFCS}\MPspotspace
+ {\doPDFgetobjectreference{PDFCS}\MPspotspace\PDFobjectreference
+ \xdef\currentMPcolorspaces
+ {\currentMPcolorspaces\MPspotspacespec\PDFobjectreference\space}}
+ \donothing}
+
+%D We need to add resource specifications!
+
+\appendtoks
+ \global\let\currentMPcolorspaces\empty
+\to \MPstartresources
+
+\appendtoks
+ \ifx\currentMPcolorspaces\empty \else
+ \xdef\currentPDFresources{\currentPDFresources
+ /ColorSpace <<\currentMPcolorspaces>>}%
+ \fi
+\to \MPstopresources
+
+%D For efficiency reasons, we fall back on the allocation
+%D mechanisms already present. For use within \MPTOPDF, we
+%D provide a fall back routine.
+
+\let\currentMPtransparencies\empty
+
+% this one triggers a new graphic state
+
+\def\invokeMPtransparencyspecial
+ {\scratchcounter\MPrgbnumber\lastMPbvalue
+ \edef\currentMPspecial{\the\scratchcounter}%
+ \ifundefined{\@@MPST\currentMPspecial}\else
+ \getvalue{\@@MPST\currentMPspecial}%
+ \doifinstringelse\PDFtransparencyidentifier\currentMPtransparencies
+ \donothing\registerMPtransparencyresource % slow
+ \PDFcode
+ {\PDFtransparencycolorspecs\space
+ \PDFtransparencyidentifier\space gs}%
+ % potential optimization
+ % \setevalue{\@@MPST\currentMPspecial}%
+ % {\PDFcode
+ % {\PDFtransparencycolorspecs\space
+ % \PDFtransparencyidentifier\space gs}}%
+ % \getvalue{\@@MPST\currentMPspecial}%
+ \let\revokeMPtransparencyspecial\dorevokeMPtransparencyspecial
+ \fi}
+
+% this one does a reset
+
+\let\revokeMPtransparencyspecial\relax
+
+\appendtoks
+ \revokeMPtransparencyspecial
+\to \MPstopresources
+
+\def\dorevokeMPtransparencyspecial % only called if state is set
+ {\ifx\PDFtransparencyresetidentifier\empty\else
+ \doifinstringelse\PDFtransparencyresetidentifier\currentMPtransparencies
+ \donothing\registerMPtransparencyresetresource
+ \PDFcode{\PDFtransparencyresetidentifier\space gs}%
+ % potential optimization
+ % \def\dorevokeMPtransparencyspecial
+ % {\PDFcode
+ % {\PDFtransparencycolorspecs\space
+ % \PDFtransparencyidentifier\space gs}}%
+ \let\dorevokeMPtransparencyspecial\dodorevokeMPtransparencyspecial
+ \let\revokeMPtransparencyspecial\relax % invoke sets it
+ \fi}
+
+% and this one does a simplified reset
+
+\def\dodorevokeMPtransparencyspecial % used after first invocation
+ {\PDFcode{\PDFtransparencyresetidentifier\space gs}%
+ \let\revokeMPtransparencyspecial\relax} % invoke sets it
+
+% add a resource entry
+
+\def\registerMPtransparencyresource
+ {\xdef\currentMPtransparencies
+ {\currentMPtransparencies
+ \PDFtransparencyidentifier\space
+ \PDFtransparencyreference\space}}
+
+\def\registerMPtransparencyresetresource
+ {\xdef\currentMPtransparencies
+ {\currentMPtransparencies
+ \PDFtransparencyresetidentifier\space
+ \PDFtransparencyresetreference\space}}
+
+\appendtoks \invokeMPtransparencyspecial \to \invokeMPspecials
+
+\ifCONTEXT \else
+
+ \def\@@MPSTN{@MPSTN@}
+ \def\@@MPSTO{@MPSTO@}
+
+ \newcount\PDFcurrenttransparency
+
+ \let\PDFtransparencyresetidentifier\empty
+ \let\PDFtransparencyresetreference \empty
+
+ \let\PDFtransparencyidentifier\empty
+ \let\PDFtransparencyreference \empty
+
+ \def\initializePDFtransparency
+ {\global\let\initializePDFtransparency\relax
+ \presetPDFtransparency{1}{1}%
+ \xdef\PDFtransparencyresetidentifier{/Tr0}%
+ \xdef\PDFtransparencyresetreference{\the\pdflastobj\space 0 R}}
+
+ \def\presetPDFtransparency#1#2%
+ {\initializePDFtransparency
+ \@EA\ifx\csname\@@MPSTO#1:#2\endcsname\relax
+ \global\advance\PDFcurrenttransparency \plusone
+ \immediate\pdfobj{\PDFtransparencydictionary{#1}{#2}{}}%
+ \setxvalue{\@@MPSTN#1:#2}{\the\PDFcurrenttransparency}%
+ \setxvalue{\@@MPSTO#1:#2}{\the\pdflastobj}%
+ \fi
+ \edef\PDFtransparencyidentifier{/Tr\getvalue{\@@MPSTN#1:#2}}%
+ \edef\PDFtransparencyreference{\getvalue{\@@MPSTO#1:#2} 0 R}}
+
+ \def\PDFtransparencydictionary#1#2#3% type fraction extras
+ {<</Type /ExtGState
+ /ca #2 /CA #2
+ /BM /\ifcase#1 Normal\or Normal\or Multiply\or Screen\or
+ Overlay\or SoftLight\or HardLight\or ColorDodge\or
+ ColorBurn\or Darken\or Lighten\or Difference\or
+ Exclusion\else Compatible\fi
+ #3>>}
+
+\fi
+
+\appendtoks
+ \global\let\currentMPtransparencies\empty
+\to \MPstartresources
+
+\appendtoks
+ \ifx\currentMPtransparencies\empty \else
+ \xdef\currentPDFresources{\currentPDFresources
+ /ExtGState <<\currentMPtransparencies>>}%
+ \fi
+\to \MPstopresources
+
+%D In all cases, we need to keep track of the resources
+%D used.
+
+%D A few auxiliary macros:
+
+\def\MPgrayspace{DeviceGray}
+\def\MPrgbspace {DeviceRGB}
+\def\MPcmykspace{DeviceCMYK}
+\let\MPspotspace\MPgrayspace
+
+\def\MPcmykBlack{0 0 0 0}
+\def\MPcmykWhite{0 0 0 1}
+
+\ifCONTEXT
+
+ \def\startMPcolorresolve
+ {\bgroup
+ \def\dostartgraycolormode##1%
+ {\global\let\MPresolvedspace\MPgrayspace
+ \xdef\MPresolvedcolor{##1}}%
+ \def\dostartrgbcolormode ##1##2##3%
+ {\global\let\MPresolvedspace\MPrgbspace
+ \xdef\MPresolvedcolor{##1 ##2 ##3}}%
+ \def\dostartcmykcolormode##1##2##3##4%
+ {\global\let\MPresolvedspace\MPcmykspace
+ \xdef\MPresolvedcolor{##1 ##2 ##3 ##4}}%
+ \def\dostartspotcolormode##1##2%
+ {\global\let\MPspotspace\empty
+ \xdef\MPresolvedspace{##1}%
+ \xdef\MPresolvedcolor{##2}%
+ \global\let\MPspotspace\MPresolvedspace}% signal
+ \dostartgraycolormode\!!zerocount} % kind of hackery initialization
+
+ \let\stopMPcolorresolve\egroup
+
+ \def\resolveMPrgbcolor#1 #2 #3\end
+ {\startMPcolorresolve
+ \execcolorR#1:#2:#3:0:0\od
+ \stopMPcolorresolve}
+
+ \def\resolveMPcmykcolor#1 #2 #3 #4\end
+ {\startMPcolorresolve
+ \execcolorC#1:#2:#3:#4:0:0\od
+ \stopMPcolorresolve}
+
+ \def\resolveMPgraycolor#1\end
+ {\startMPcolorresolve
+ \execcolorS#1:0:0\od
+ \stopMPcolorresolve}
+
+ \def\resolveMPspotcolor#1 #2 #3 #4\end
+ {\startMPcolorresolve
+ \ifnum#2>\plusone
+ \checkmultitonecolor{#1}%
+ \fi
+ \execcolorP#1:#2:#3:#4:0:0\od
+ \stopMPcolorresolve}
+
+\else
+
+ \def\resolveMPspotcolor#1 #2\end
+ {\global\let\MPresolvedspace\MPgrayspace
+ \xdef\MPresolvedcolor{0}}
+
+ \def\resolveMPrgbcolor#1 #2 #3\end
+ {\global\let\MPresolvedspace\MPrgbspace
+ \xdef\MPresolvedcolor{#1 #2 #3}}
+
+ \def\resolveMPcmykcolor#1 #2 #3 #4\end
+ {\global\let\MPresolvedspace\MPcmykspace
+ \xdef\MPresolvedcolor{#1 #2 #3 #4}}
+
+ \def\resolveMPgraycolor#1\end
+ {\global\let\MPresolvedspace\MPgrayspace
+ \xdef\MPresolvedcolor{#1}} % should be inverted
+
+\fi
+
+\protect \endinput
diff --git a/tex/context/base/page-flt.tex b/tex/context/base/page-flt.tex
index 3cc61d291..30a337443 100644
--- a/tex/context/base/page-flt.tex
+++ b/tex/context/base/page-flt.tex
@@ -134,11 +134,11 @@
2: -- lagret
3: -- flyttet
4: -- plassert
- 5: rekkefølge tilpasset
- 6: maksimalt -- flytblokker øverst
+ 5: rekkefølge tilpasset
+ 6: maksimalt -- flytblokker øverst
7: maksimalt -- flytblokker nederst
8: mindre enn -- linjer
- 9: rekkefølge endret
+ 9: rekkefølge endret
10: -- begrenset
11: ingen blokk oppgitt
12: udefinert
@@ -1370,6 +1370,7 @@
\fi}
\def\placefloatcaptiontext [#1]{\getvalue{@fl@t@#1}}
+\def\placefloatcaptionnumber [#1]{\getvalue{@fl@n@#1}}
\def\placefloatcaptionreference[#1]{\getvalue{@fl@r@#1}}
% still needed for uguide
@@ -2216,11 +2217,17 @@
\getparameters[\??si][#1]%
\resetnumber[\??si]%
\def\floatcaptionsuffix{\convertednumber[\??si]}%
- \TABLEcaptionheight\@@silines\lineheight % brrr
+ % \TABLEcaptionheight\@@silines\lineheight% brrr
+% todo: auto == \getnoflines\captionheight
+\let\extrasplitfloatlines\@@silines
+\the\everysplitfloatsetup
\simplifypagebreak % \page becomes \goodbreak
+% todo: a preceding float does not count yet
+% so we need a better predictor
\dowithnextbox
{\forgetall
\dontcomplain
+\chardef\nodelocationmode\zerocount
\doloop
{\setbox2\vsplit\nextbox to \lineheight
\setbox2\vbox{\unvbox2}
@@ -2234,10 +2241,12 @@
\egroup
\ifdim\nextboxht>\zeropoint
\page
- \decrementnumber[\floatcaptionnumber]%
\fi
\fi
- \ifdim\nextboxht>\zeropoint\else
+ \ifdim\nextboxht>\zeropoint
+\decrementnumber[\floatcaptionnumber]
+%\setupnumber[\floatcaptionnumber][\c!state=\v!stop]%
+ \else
\expandafter\exitloop
\fi}%
\egroup}
@@ -2247,6 +2256,26 @@
\def\splitfloat
{\dosingleempty\dosplitfloat}
+\newtoks \everysplitfloatsetup
+
+% will move to core-tab
+
+\appendtoks
+ \TABLEcaptionheight\extrasplitfloatlines\lineheight
+\to \everysplitfloatsetup
+
+% will move to core-ntb
+
+\appendtoks
+ \def\extratblsplitheight{\extrasplitfloatlines\lineheight}%
+\to \everysplitfloatsetup
+
+% todo in core-tbl
+
+\appendtoks
+ % set extra
+\to \everysplitfloatsetup
+
% \splitfloat [settings] {\placetable[optional args]{test}} {content}
\def\dooutput{\sidefloatoutput} % redefinition of \dooutput
diff --git a/tex/context/base/page-ini.tex b/tex/context/base/page-ini.tex
index 5184df72a..ee62d92bb 100644
--- a/tex/context/base/page-ini.tex
+++ b/tex/context/base/page-ini.tex
@@ -155,10 +155,10 @@
1: caricamento dei file supplementari posticipato (typemode)
2: -- caricato
% 3: provare LaTeX
- 4: comando -- già definito
+ 4: comando -- già definito
5: macro del modulo -- caricate
6: nessuna macro trovata nel modulo --
- 7: macro del modulo -- già caricate
+ 7: macro del modulo -- già caricate
8: nuova versione del file supplementare, seconda passata necessaria
9: -- non trovato/elaborato
10: non usare em in --
@@ -185,12 +185,12 @@
title: system
1: innlesning av hjelpefila utsatt (typemode)
2: -- er lest inn
-% 3: forsøker LaTeX
+% 3: forsøker LaTeX
4: kommando -- er allerede definert
5: makroene i modul -- er lest inn
6: ingen makroer funnet i modul ---
7: makroene i modul -- er allerede lest inn
- 8: ny versjon av hjelpefil, andre gjennomkjøring nødvendig
+ 8: ny versjon av hjelpefil, andre gjennomkjøring nødvendig
9: -- ikke funnet/behandlet
10: ikke bruk em i --
11: lager enkel hjelpefil
@@ -205,7 +205,7 @@
20: betydning (sorterer) av -- er lest inn
21: hjelpefila er ikke lest inn
22: bruk en gyldig hjelpefil
- 23: -- arrangert på --
+ 23: -- arrangert på --
24: Flytblokker
25: Referanser
26: Registere
@@ -346,12 +346,12 @@
\startmessages norwegian library: layouts
title: layout
- 1: teksthøyde tilpasset med -- på side --
- 2: -- ganger forskjøvet tekst plassert
- 3: -- ganger tekst forskjøvet
+ 1: teksthøyde tilpasset med -- på side --
+ 2: -- ganger forskjøvet tekst plassert
+ 3: -- ganger tekst forskjøvet
4: margblokker aktive
5: margblokker inaktive
- 6: delside sett -- behandlet (størrelse --)
+ 6: delside sett -- behandlet (størrelse --)
% 7: beregner plass for logo
% 8: beregner bakgrunn
10: -- og -- er ikke 1.0 til sammen
@@ -577,17 +577,17 @@
title: kolonner
1: maksimalt -- kolonner
2: bruk \string\filbreak\space som et alternativ
- 3: problemer, slår av balansering
- 4: flytblokker øverst er ikke støttet enda
- 5: flytblokker nedert er ikke støttet enda
- 6: -- flytblokk forskjøvet
+ 3: problemer, slår av balansering
+ 4: flytblokker øverst er ikke støttet enda
+ 5: flytblokker nedert er ikke støttet enda
+ 6: -- flytblokk forskjøvet
7: balansering avbrutt etter 100 iterasjoner
8: balansert etter -- iterasjoner
9: kontroller tekstlayout!
10: (mindre enn) 1 linje igjen
11: flytblokk for bredt for kolonna
- 12: flytblokk forskjøvet til neste kolonne / --
- 13: bred flytblokk forksjøvet til toppen av kolonnene
+ 12: flytblokk forskjøvet til neste kolonne / --
+ 13: bred flytblokk forksjøvet til toppen av kolonnene
\stopmessages
\startmessages romanian library: columns
diff --git a/tex/context/base/sort-ini.tex b/tex/context/base/sort-ini.tex
index 86f3091c0..970cbff1f 100644
--- a/tex/context/base/sort-ini.tex
+++ b/tex/context/base/sort-ini.tex
@@ -74,6 +74,8 @@
\unprotect
+\newevery \everysavesortkeys \relax
+
\let\currentexportclass\empty
\def\exportsortaction#1#2#3%
@@ -101,15 +103,8 @@
\fi}%
\egroup}
-% Next we overload some macros defined in enco-ini and core-uti. This
-% will change.
-
-\let\definesortkey\gobblefourarguments
-
-\def\savesortkeys
- {\globallet\savesortkeys\relax
- \enablemode[sortorder-\currentmainlanguage]%
- \bgroup
+\def\savesortdefinitions
+ {\bgroup
\doifelse \currentregime {utf}
{\exportutfsortexpansion{0}{128}{255}%
\exportutfsortexpansion{1}{0}{255}}
@@ -120,9 +115,36 @@
{\the\executeifdefined{\@reg@\characterencoding}\emptytoks}}%
{\the\executeifdefined{\@reg@\characterregime}\emptytoks}}%
\egroup
- \readfile{\f!sortprefix new}\donothing\donothing % temporary hacks
- \readfile{\f!sortprefix def}\donothing\donothing % defaults
- \readfile{\f!sortprefix lan}\donothing\donothing}% language specifics
+ \readfile{\f!sortprefix def}\donothing\donothing % default
+ \global\let\savesortdefinitions\relax}
+
+\def\savesortlanguage#1% language specifics
+ {\doifsomething{#1}
+ {\doifundefined{\f!sortprefix::#1}%
+ {\bgroup
+ \global\letvalue{\f!sortprefix::#1}\empty
+ \def\currentexportclass{#1}%
+ \enablemode[sortorder-#1]%
+ \readfile{\f!sortprefix lan}\donothing\donothing
+ \egroup}}}
+
+\prependtoks
+ \savesortdefinitions
+\to \everysavesortkeys
+
+\def\savesortkeys
+ {\the\everysavesortkeys
+ \global\everysavesortkeys\emptytoks}
+
+% \defineregister[one]
+% \defineregister[two] \setupregister[two][language=cz]
+%
+% \starttext
+% test \one{one} test \one{two} test \one {\aacute} test \one{alpha} test \one{chow}
+% test \two{one} test \two{two} test \two {\aacute} test \two{alpha} test \two{chow}
+% \blank[3*big] \placeregister[one]
+% \blank[3*big] \placeregister[two]
+% \stoptext
% already done \prependtoks \savesortkeys \to \everystarttext
diff --git a/tex/context/base/sort-lan.tex b/tex/context/base/sort-lan.tex
index a4d77a6fa..ad5232b02 100644
--- a/tex/context/base/sort-lan.tex
+++ b/tex/context/base/sort-lan.tex
@@ -20,7 +20,6 @@
\exportsortexpansion{Agrave}{A+2}
\stopmode
-
%D This module replaces existing sort key handling and is meant to be
%D used with the new texutil functionality. Here we define the language
%D specific sort rules.
@@ -153,6 +152,9 @@
% c) sorting rule: "A" < "Á" < "a" < "á" < "C" < "c" < "C" < "c"
% d) sorting rule: "h" < "ch" < "i" ("c" < "h")
+\gdef\czsortdivisionch{ch}
+\gdef\czsortdivisionCh{Ch}
+
\startmode[sortorder-cz]
\exportsortexpansion {aacute} {a+1}
\exportsortexpansion {Aacute} {A+1}
@@ -160,7 +162,7 @@
\exportsortexpansion {Ccaron} {C+1}
\exportsortdivision {c+1} {ccaron}
\exportsortexpansion {dcaron} {d+1}
- \exportsortexpansion {Dcaron} {C+1}
+ \exportsortexpansion {Dcaron} {D+1}
\exportsortdivision {d+1} {dcaron}
\exportsortexpansion {eacute} {e+1}
\exportsortexpansion {Eacute} {E+1}
@@ -168,13 +170,13 @@
\exportsortexpansion {Ecaron} {E+2}
\exportsortreduction {ch} {h+1}
\exportsortexpansion {ch} {h+1}
- \exportsortreduction {Ch} {h+1}
- \exportsortexpansion {Ch} {h+1}
+ \exportsortreduction {Ch} {H+1}
+ \exportsortexpansion {Ch} {H+1}
\exportsortdivision {h+1} {czsortdivisionch}
\exportsortexpansion {iacute} {i+1}
\exportsortexpansion {Iacute} {I+1}
\exportsortexpansion {ncaron} {n+1}
- \exportsortexpansion {Ncaron} {n+1}
+ \exportsortexpansion {Ncaron} {N+1}
\exportsortdivision {n+1} {ncaron}
\exportsortexpansion {oacute} {o+1}
\exportsortexpansion {Oacute} {O+1}
diff --git a/tex/context/base/sort-new.tex b/tex/context/base/sort-new.tex
deleted file mode 100644
index c7bea35a8..000000000
--- a/tex/context/base/sort-new.tex
+++ /dev/null
@@ -1,49 +0,0 @@
-% temporary overloading
-
-\unprotect
-
-\def\strippedcsname
- {\expandafter\dostrippedcsname\string}
-
-\def\dostrippedcsname#1%
- {\if\noexpand#1\letterbackslash\else#1\fi}
-
-\def\doregisterreference[#1]#2%
- {\doifvalue{\??id#1\c!referencing}\v!on
- {\pagereference[#1:\strippedcsname#2]}}
-
-\def\doprocesspageregister[#1]#2#3% key altnum entry
- {\begingroup
- \thisisnextinternal\s!ind
- \ifduplicate\getlastregisterentry{#3}\fi
- \convertexpanded{\registerparameter\c!keyexpansion}{#1}\asciiregisterentryA
- \convertexpanded{\registerparameter\c!expansion }{#3}\asciiregisterentryB
- \doifsomething{\registerparameter\c!keyexpansion}
- {\ifx\asciiregisterentryA\empty
- \convertexpanded{\registerparameter\c!keyexpansion}{#3}\asciiregisterentryA
- \fi}%
- \makesectionformat
- \doifelse{\registerparameter\c!ownnumber}\v!yes
- \donetrue\donefalse
- % the spaces between } { are essential for texutil's split
- \expanded
- {\writeutility%
- {r \ifcase\registerpagestatus\space\or e \or f \or t \fi
- {\currentregister} %
- {\nextinternalreference} %
- {\asciiregisterentryA} %
- {\asciiregisterentryB} %
- {\sectionformat\sectionseparator\sectionseparator
- \ifdone#2\else\noexpand\pagenumber\fi} %
- {\noexpand\realfolio}}}%
- \getfirstcharacter\currentregister
- \registerinfo{> \firstcharacter}{#3}%
- \endgroup}
-
-\def\reduceargument#1\to#2%
- {\begingroup
- \reducetocoding[raw]%
- \edef\ascii{#1}%
- \expandafter\endgroup\expandafter\edef\expandafter#2\expandafter{\ascii}}
-
-\protect
diff --git a/tex/context/base/spec-ini.tex b/tex/context/base/spec-ini.tex
index e455a6f21..8d867e9a1 100644
--- a/tex/context/base/spec-ini.tex
+++ b/tex/context/base/spec-ini.tex
@@ -80,9 +80,9 @@
\stopmessages
\startmessages italian library: specials
- title: specialità
+ title: specialitø
1: -- caricato
- 2: non è permesso un annidamento maggiore --
+ 2: non ø permesso un annidamento maggiore --
3: -- reimpostato
4: il comando -- non esiste
5: caricamento del file di definizione --
@@ -144,7 +144,7 @@
\stopmessages
\startmessages norwegian library: interactions
- 21: -- kode satt inn / tilføyd
+ 21: -- kode satt inn / tilføyd
\stopmessages
\startmessages romanian library: interactions
diff --git a/tex/context/base/supp-mps.tex b/tex/context/base/supp-mps.tex
index d46de7fd4..b89483a5c 100644
--- a/tex/context/base/supp-mps.tex
+++ b/tex/context/base/supp-mps.tex
@@ -222,12 +222,26 @@
%D The next hack prevents too long lines:
-\long\def\obeyMPlines
- {\ifx\rawcharacter\undefined\else
+\long\def\runtimeobeyMPlines
+ {\ifx\rawcharacter\undefined
+ \let\obeyedline\space
+ \else
\obeylines
- \def\obeyedline{\rawcharacter{10}}%
+ \ifx\systemendofline\undefined
+ \def\obeyedline{\rawcharacter{10}}%
+ \else
+ \let\obeyedline\systemendofline
+ \fi
\fi}
+\long\def\obeyMPlines % anyhow, we end up with ^^M's in the input
+ {\obeylines
+ \let\obeyedline\relax} % delay expansion
+
+\appendtoks
+ \let\obeyMPlines\runtimeobeyMPlines
+\to \everydump
+
%D We use two distinguished token registers:
\newtoks \MPextensions % once per run (can be multiple graphics)
@@ -1089,7 +1103,7 @@
\def\executesystemcommand#1{\immediate\write18{#1}}
\fi
-\ifx\TEXEXECcommand \undefined \def\TEXEXECcommand{texexec} \fi
+\ifx\TEXEXECcommand \undefined \def\TEXEXECcommand{texmfstart texexec} \fi
\ifx\undefined\executeMetaPost
diff --git a/tex/context/base/syst-con.tex b/tex/context/base/syst-con.tex
index eedcde38b..cbef0dedc 100644
--- a/tex/context/base/syst-con.tex
+++ b/tex/context/base/syst-con.tex
@@ -192,7 +192,7 @@
\dorecurse{255}
{\lccode`a=\recurselevel
- \lowercase{\xdef\rawcharacter{\rawcharacter a\or}}}
+ \lowercase{\xdef\rawcharacter{\rawcharacter \string a\or}}} % string is needed for XeTeX
\@EA\gdef\@EA\rawcharacter\@EA#\@EA1\@EA
{\@EA\ifcase\@EA#\@EA1\rawcharacter\fi}
diff --git a/tex/context/base/syst-ext.tex b/tex/context/base/syst-ext.tex
index 40dfc27ec..82e6bc2e7 100644
--- a/tex/context/base/syst-ext.tex
+++ b/tex/context/base/syst-ext.tex
@@ -394,9 +394,21 @@
%D \stoptyping
%D
%D This expands to \type{\ifsomething}.
+%D
+%D \starttyping
+%D \def\strippedcsname
+%D {\expandafter\gobbleoneargument\string}
+%D \stoptyping
+%D
+%D Slower but better:
+
+{\catcode`.=\@@escape .catcode`.\ 12 .xdef.letterbackslash{.string\}} % hack
\def\strippedcsname
- {\expandafter\gobbleoneargument\string}
+ {\expandafter\dostrippedcsname\string}
+
+\def\dostrippedcsname#1%
+ {\if\noexpand#1\letterbackslash\else#1\fi}
%D \macros
%D {savenormalmeaning}
diff --git a/tex/context/base/syst-gen.tex b/tex/context/base/syst-gen.tex
index eea5351b8..9d4d9fd2e 100644
--- a/tex/context/base/syst-gen.tex
+++ b/tex/context/base/syst-gen.tex
@@ -346,6 +346,7 @@
\dimendef\!!dimenh=14 %skipdef\!!skipc=4
\dimendef\!!dimeni=16 %skipdef\!!skipd=6
\dimendef\!!dimenj=18 %skipdef\!!skipe=8
+ \dimendef\!!dimenk=20 %skipdef\!!skipf=10
\let\!!stringa=\empty \let\!!stringb=\empty \let\!!stringc=\empty
\let\!!stringd=\empty \let\!!stringe=\empty \let\!!stringf=\empty
@@ -3253,9 +3254,9 @@
\def\p!dogetcommalistsize#1%
{\advance\commalistcounter\plusone}
-\def\getcommalistsize[#1]%
+\def\getcommalistsize#1]% don't loose [{#1}]
{\commalistcounter\zerocount
- \processcommalist[#1]\p!dogetcommalistsize % was [{#1}]
+ \processcommalist#1]\p!dogetcommalistsize % was [{#1}]
\edef\commalistsize{\the\commalistcounter}}
\def\getcommacommandsize[#1]%
diff --git a/tex/context/base/syst-tex.tex b/tex/context/base/syst-tex.tex
index b439275a4..ddf1d82af 100644
--- a/tex/context/base/syst-tex.tex
+++ b/tex/context/base/syst-tex.tex
@@ -1,5 +1,5 @@
%D \module
-%D [ file=syst-pln,
+%D [ file=syst-tex,
%D version=1999.03.17, % an oldie: 1995.10.10
%D title=\CONTEXT\ System Macros,
%D subtitle=Efficient \PLAIN\ \TEX\ loading,
diff --git a/tex/context/base/x-newmml.tex b/tex/context/base/x-newmml.tex
index e45f52bc0..32b98525d 100644
--- a/tex/context/base/x-newmml.tex
+++ b/tex/context/base/x-newmml.tex
@@ -436,11 +436,18 @@
\startsavingXMLelements
\rawXMLstacktext\plusone % still on stack, no check, just attr test
\stopsavingXMLelements
+ % http://www.publisherswhodontcareaboutcosts.com/SomeName
\doifsetupselse{mmc:csymbol:\XMLpar{csymbol}{definitionURL}{}} {
\expanded{\endgroup\noexpand\directsetup{mmc:csymbol:\XMLpar{csymbol}{definitionURL}{}}}
} {
- \endgroup
- \XMLval{mmc:cs}{\XMLop{encoding}}{\firstofoneargument}
+ % SomeName (fallback)
+ \splitfilename{\XMLpar{csymbol}{definitionURL}{}}
+ \doifsetupselse{mmc:csymbol:\splitoffbase} {
+ \expanded{\endgroup\noexpand\directsetup{mmc:csymbol:\splitoffbase}}
+ } {
+ \endgroup
+ \XMLval{mmc:cs}{\XMLop{encoding}}{\firstofoneargument}
+ }
}
\stopsetups
@@ -1249,8 +1256,12 @@
\flushXMLstackfrom\plustwo^\prime
}
} {
- \MMLcreset\XMLfirstnamed{apply,ci}
- ^{
+ \MMLcreset
+ \XMLfirstnamed{apply,ci}
+ % there can be problems with nested diff's: ^^{} error
+ % so we add an empty group here
+ {}^
+ {
\XMLdoifonstackelse{degree} {
\defXMLfirstnamedtext\ascii{degree}
\dorecurse\ascii\prime
diff --git a/tex/context/base/xtag-ent.tex b/tex/context/base/xtag-ent.tex
index edb437ea5..83f1b1139 100644
--- a/tex/context/base/xtag-ent.tex
+++ b/tex/context/base/xtag-ent.tex
@@ -123,3 +123,4 @@
\defineXMLentity [dots] {\unknown}
\defineXMLentity [amp] {\&}
+\defineXMLentity [nbsp] {\nonbreakablespace}
diff --git a/tex/context/interface/cont-cz.xml b/tex/context/interface/cont-cz.xml
index 1a2417f85..ce881ea6d 100644
--- a/tex/context/interface/cont-cz.xml
+++ b/tex/context/interface/cont-cz.xml
@@ -6124,7 +6124,9 @@
<cd:constant type="uvolnene"/>
<cd:constant type="opakovat"/>
<cd:constant type="cd:section"/>
+ <cd:constant type="odstavec"/>
<cd:constant type="dotextu"/>
+ <cd:constant type="nahodny"/>
</cd:keywords>
<cd:assignments optional="yes" list="yes">
<cd:parameter name="marginalie">
diff --git a/tex/context/interface/cont-de.xml b/tex/context/interface/cont-de.xml
index 14da14a3f..0859070b7 100644
--- a/tex/context/interface/cont-de.xml
+++ b/tex/context/interface/cont-de.xml
@@ -6124,7 +6124,9 @@
<cd:constant type="lose"/>
<cd:constant type="wiederholen"/>
<cd:constant type="cd:section"/>
+ <cd:constant type="absatz"/>
<cd:constant type="imtext"/>
+ <cd:constant type="zufaellig"/>
</cd:keywords>
<cd:assignments optional="yes" list="yes">
<cd:parameter name="marginalie">
diff --git a/tex/context/interface/cont-en.xml b/tex/context/interface/cont-en.xml
index 848ac1dac..f118229aa 100644
--- a/tex/context/interface/cont-en.xml
+++ b/tex/context/interface/cont-en.xml
@@ -6124,7 +6124,9 @@
<cd:constant type="loose"/>
<cd:constant type="repeat"/>
<cd:constant type="cd:section"/>
+ <cd:constant type="paragraph"/>
<cd:constant type="intext"/>
+ <cd:constant type="random"/>
</cd:keywords>
<cd:assignments optional="yes" list="yes">
<cd:parameter name="margin">
diff --git a/tex/context/interface/cont-fr.xml b/tex/context/interface/cont-fr.xml
index 9b494a48a..7e9ad66a9 100644
--- a/tex/context/interface/cont-fr.xml
+++ b/tex/context/interface/cont-fr.xml
@@ -6124,7 +6124,9 @@
<cd:constant type="perte"/>
<cd:constant type="repete"/>
<cd:constant type="cd:section"/>
+ <cd:constant type="paragraphe"/>
<cd:constant type="danstexte"/>
+ <cd:constant type="aleatoire"/>
</cd:keywords>
<cd:assignments optional="yes" list="yes">
<cd:parameter name="marge">
diff --git a/tex/context/interface/cont-it.xml b/tex/context/interface/cont-it.xml
index 709f4acbc..480b6098a 100644
--- a/tex/context/interface/cont-it.xml
+++ b/tex/context/interface/cont-it.xml
@@ -6124,7 +6124,9 @@
<cd:constant type="lento"/>
<cd:constant type="ripeti"/>
<cd:constant type="cd:section"/>
+ <cd:constant type="capoverso"/>
<cd:constant type="intesto"/>
+ <cd:constant type="casuale"/>
</cd:keywords>
<cd:assignments optional="yes" list="yes">
<cd:parameter name="margine">
diff --git a/tex/context/interface/cont-nl.xml b/tex/context/interface/cont-nl.xml
index 1560dd762..e74915152 100644
--- a/tex/context/interface/cont-nl.xml
+++ b/tex/context/interface/cont-nl.xml
@@ -6124,7 +6124,9 @@
<cd:constant type="los"/>
<cd:constant type="herhaal"/>
<cd:constant type="cd:section"/>
+ <cd:constant type="alinea"/>
<cd:constant type="intekst"/>
+ <cd:constant type="willekeurig"/>
</cd:keywords>
<cd:assignments optional="yes" list="yes">
<cd:parameter name="marge">
diff --git a/tex/context/interface/cont-ro.xml b/tex/context/interface/cont-ro.xml
index bc7f41264..5a69366bb 100644
--- a/tex/context/interface/cont-ro.xml
+++ b/tex/context/interface/cont-ro.xml
@@ -6124,7 +6124,9 @@
<cd:constant type="larg"/>
<cd:constant type="repetat"/>
<cd:constant type="cd:section"/>
+ <cd:constant type="paragraf"/>
<cd:constant type="intext"/>
+ <cd:constant type="aleator"/>
</cd:keywords>
<cd:assignments optional="yes" list="yes">
<cd:parameter name="margine">