1 files changed, 369 insertions, 0 deletions
diff --git a/tex/context/base/mkiv/font-run.mkiv b/tex/context/base/mkiv/font-run.mkiv
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--- /dev/null
+++ b/tex/context/base/mkiv/font-run.mkiv
@@ -0,0 +1,369 @@
+%D \module
+%D   [       file=font-run,
+%D        version=1998.09.11, % (second)
+%D        version=2001.02.20, % (third)
+%D          title=\CONTEXT\ Font Macros,
+%D       subtitle=Runtime Macros,
+%D         author=Hans Hagen,
+%D           date=\currentdate,
+%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%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 [This code is hooked into the core macros and saves some format
+%D space. It needs a cleanup.]
+
+\unprotect
+
+\gdef\@@onlyenglish#1%
+  {\blank{\tttf \type {#1} is only available in the english interface}\blank}
+
+\gdef\dosetshowfonttitle#1%
+  {\tabskip\zeropoint
+   \parindent\zeropoint
+   \setlocalhsize
+   \doifelsenothing{#1}
+     {\def\title{[\the\bodyfontsize]}}
+     {\switchtobodyfont[#1]\def\title{[#1]}}
+   \doifsomething\fontclass
+     {\doifnot{[\fontclass]}\title
+        {\edef\title{[\fontclass]\space\title}}}}
+
+\unexpanded\gdef\showbodyfont
+  {\dosingleempty\doshowbodyfont}
+
+\gdef\doshowbodyfont[#1]%
+  {\ifinsidefloat\else\startbaselinecorrection\fi
+   \vbox
+     {\dosetshowfonttitle{#1}%
+      \def\bigstrut##1##2%
+        {\hbox{\vrule
+           \s!height##1\strutht
+           \s!depth ##2\strutdp
+           \s!width \zeropoint}}
+      \def\next##1##2##3%
+        {&&##1&&##2\tf##3&&##2\sc##3%
+         &&##2\sl##3&&##2\it##3&&##2\bf##3&&##2\bs##3&&##2\bi##3%
+         &&##2\tfx##3&&##2\tfxx##3%
+         &&##2\tfa##3&&##2\tfb##3&&##2\tfc##3&&##2\tfd##3&\cr}%
+      \halign to \localhsize
+        {\bigstrut{1.5}{2}##&\vrule##
+         \tabskip\zeropoint \s!plus 1\s!fill
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&##\vrule
+         \tabskip=\zeropoint\cr
+         \noalign{\hrule}
+         &\multispan{29}{\vrule\hfil\tttf\strut\title\hfil
+          \llap{\string\mr\hbox to 1em{\hss:\hss}$\mr \languageparameter\c!text$\quad}\vrule}\cr
+         \noalign{\hrule}\next{}{\tt\string}{}
+         \noalign{\hrule}\next{\tt\string\rm}\rm{\languageparameter\c!text}
+         \noalign{\hrule}\next{\tt\string\ss}\ss{\languageparameter\c!text}
+         \noalign{\hrule}\next{\tt\string\tt}\tt{\languageparameter\c!text}
+         \noalign{\hrule}}}
+   \ifinsidefloat\else\stopbaselinecorrection\fi}
+
+\unexpanded\gdef\showbodyfontenvironment
+  {\dosingleempty\doshowbodyfontenvironment}
+
+\gdef\doshowbodyfontenvironment[#1]%
+  {\ifinsidefloat\else\startbaselinecorrection\fi
+   \vbox
+     {\dosetshowfonttitle{#1}%
+      \def\next##1%
+        {&&\bodyfontsizevariable{##1}\s!text
+         &&\bodyfontsizevariable{##1}\s!script
+         &&\bodyfontsizevariable{##1}\s!scriptscript
+         &&\bodyfontsizevariable{##1}\s!x
+         &&\bodyfontsizevariable{##1}\s!xx
+         &&\bodyfontsizevariable{##1}\v!small
+         &&\bodyfontsizevariable{##1}\v!big
+         &&\bodyfontsizevariable{##1}\c!interlinespace
+         &\cr
+         \noalign{\hrule}}
+      \halign to \localhsize
+        {##&\vrule##\strut
+         \tabskip=\zeropoint \s!plus 1\s!fill
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##&\hfil##\hfil&\vrule##
+         &\hfil##\hfil&\vrule##&\hfil##\hfil&##\vrule
+         \tabskip\zeropoint\cr
+         \noalign{\hrule}
+         &\multispan{17}{\vrule\hfil\tttf\strut\title\hfil}\vrule\cr
+         \noalign{\hrule}
+         &&\tttf\tx\s!text&&\tttf\tx\s!script&&\tttf\tx\s!scriptscript
+         &&\tttf\tx\s!x&&\tttf\tx\s!xx&&\tttf\tx\v!small&&\tttf\tx\v!big
+         &&\tttf\tx\c!interlinespace&\cr
+         \noalign{\hrule}%
+         \processbodyfontenvironmentlist\next}}
+   \ifinsidefloat\else\stopbaselinecorrection\fi}
+
+\unexpanded\gdef\showfont
+  {\dodoubleempty\doshowfont}
+
+\gdef\doshowfont[#1][#2]%
+  {\bgroup
+   \iffirstargument
+     \definefont[\s!dummy][#1]\dummy
+   \fi
+   \doifelsenothing{#2}
+     {\dodoshowfont{#1}{0}}
+     {\doifelse{#2}\v!all
+        {\dostepwiserecurse{0}{255}{1}
+           {\donefalse
+            \let\charplane\recurselevel
+            \dostepwiserecurse{0}{255}{1}
+              {\iffontchar\font\numexpr\charplane*256+\recurselevel\relax
+                 \donetrue
+                 \exitloop
+               \fi}%
+               \ifdone
+                 \dodoshowfont{#1}\charplane
+               \fi}}
+        {\processcommalist[#2]{\dodoshowfont{#1}}}}%
+   \egroup}
+
+\gdef\dodoshowfont#1#2%
+  {\bgroup
+   \edef\charplane{\number#2}%
+   \iffirstargument
+%      \definefont[\s!dummy][#1]\dummy
+   \else\ifdim2.5em>.05\hsize \tx
+        \ifdim2.5em>.05\hsize \txx
+   \fi\fi\fi
+   \ifinsidefloat\else\startbaselinecorrection\fi
+   \vbox\bgroup
+   \forgetall
+   \startoverlay % easier in cld
+     {\vbox
+        {\tf \setstrut \dummy
+         \offinterlineskip
+         \dostepwiserecurse{0}{15}{1}
+           {\let\row\recurselevel
+            \hbox
+              {\red
+               \dostepwiserecurse{0}{15}{1}
+                 {\let\col\recurselevel
+                  \@EA\scratchcounter\string"\hexnumber\row\hexnumber\col\relax
+                  \edef\rowcol{\the\scratchcounter}%
+                  \iffontchar\font\scratchcounter
+                    \setbox\scratchbox\ruledhbox{\black\char\numexpr\charplane*256+\scratchcounter\relax}%
+                    \ifdim\wd\scratchbox>\zeropoint
+                      \donetrue \else \donefalse
+                    \fi
+                  \else
+                    \setbox\scratchbox\hbox{\gray\vrule\s!width1ex\s!height.5ex\s!depth.5ex}%
+                  \fi
+                  \startoverlay
+                    {\tf\vbox to 2.5em
+                       {\vss
+                        \hbox to 2.5em
+                          {\dummy\ifdim\interwordspace=\zeropoint
+                             \setbox\scratchbox\hbox
+                               {\raise.5\dp\scratchbox\hbox
+                                  {\lower.5\ht\scratchbox\copy\scratchbox}}%
+                             \ht\scratchbox\zeropoint
+                             \dp\scratchbox\zeropoint
+                           \else
+                             \ht\scratchbox\strutht
+                             \dp\scratchbox\strutdp
+                             \strut
+                           \fi
+                           \hss\copy\scratchbox\hss}
+                        \vss}}
+                    {\tf\vbox to 2.3em
+                       {\ifdone
+                          \hsize2.4em
+                          \blue
+                          \tinyfont
+                          \hfill\number\rowcol
+                          \vfill
+                          \octnumber\rowcol\hfill\lchexnumbers\rowcol
+                          \par
+                        \fi}}
+                  \stopoverlay}}}
+          \par}}
+     {\tf\basegrid[\c!nx=16,\c!ny=16,\c!dx=2.5,\c!dy=2.5,\c!unit=em]}
+   \stopoverlay
+   \nointerlineskip
+   \vskip2pt
+   % the \noexpand before \blank is needed for non etex
+   \edef\ascii{name: {\noexpand\black\fontname\font}}
+   \def\do##1##2{\ifx##1\undefined\else\ifx##1\empty\else##2\fi\fi}%
+   \edef\theshowfontspecs{name: {\noexpand\black\fontname\font}\quad plane: \charplane\enspace"\hexnumber\charplane}%
+   \tf % also sets em
+   \hbox to 40em{\blue\hfill\tinyfont\setstrut\strut\theshowfontspecs}
+   \egroup
+   \ifinsidefloat\else\stopbaselinecorrection\fi
+   \egroup}
+
+% \showfontstyle[modern][rm][tf][all] % #2, #3 and #4 can be 'all'
+
+\unexpanded\gdef\showfontstyle      {\dodoubleempty   \dodoshowfontstyle}
+\unexpanded\gdef\redoshowfontstyle  {\dotripleempty   \dododoshowfontstyle}
+\unexpanded\gdef\redodoshowfontstyle{\doquadrupleempty\dodododoshowfontstyle}
+
+% no lists any more, so no 'all' any longer
+
+\gdef\dodoshowfontstyle[#1][#2]%
+  {\doifelsenothing{#2}
+     {\redoshowfontstyle[#1][\s!rm,\s!ss,\s!tt,\s!mm]}
+     {\redoshowfontstyle[#1][#2]}}
+
+\gdef\dododoshowfontstyle[#1][#2][#3]%
+  {\doifelsenothing{#3}
+     {\redodoshowfontstyle[#1][#2][\s!tf,\s!bf,\s!it,\s!sl,\s!bs,\s!bi]}
+     {\redodoshowfontstyle[#1][#2][#3]}}
+
+\gdef\dodododoshowfontstyle[#1][#2][#3][#4]%
+  {\doshowfontstyleindeed[#1][#2][#3][#4]}
+
+% so far
+
+\gdef\doshowfontstyleindeed[#1][#2][#3][#4]%
+  {\bgroup
+   \raggedright
+   \switchtobodyfont[#1]
+   \def\dododocommand##1%
+     {\dostepwiserecurse{0}{255}{1}
+        {\scratchcounter\numexpr##1*256+\recurselevel\relax
+         \iffontchar\font\scratchcounter\relax
+           \char\scratchcounter
+           \space
+         \fi}}%
+   \def\dodocommand##1##2%
+     {\starttextrule{\tttf #1 ##1 ##2}
+      \nobreak\getvalue{##2}%
+      \doifelsenothing{#4}
+        {\dododocommand{0}}
+        {\doifelse{#4}\v!all
+           {\dostepwiserecurse{0}{255}{1}{\expanded{\dododocommand{\recurselevel}}}}
+           {\processcommalist[#4]{\dododocommand}}}%
+      \par \nobreak
+      \stoptextrule}
+   \def\docommand##1%
+     {\getvalue{##1}%
+      \processcommacommand[#3]{\dodocommand{##1}}}
+   \processcommalist[#2]\docommand
+   \egroup}
+
+\unexpanded\gdef\showligature#1%
+  {\hbox{\type{#1}\enspace\red\ruledhbox{\black#1}}}
+
+\unexpanded\gdef\showligatures[#1]%
+  {\ifx\starttabulate\undefined
+     \@@onlyenglish\showligatures
+   \else
+     \bgroup
+     \def\show##1{\hbox{\red\ruledhbox{\black##1}}}%
+     \definefont[\s!dummy][#1]\dummy
+     \starttabulate[|*{9}{c|}]
+     \NC\type{ff}\NC\type{fi}\NC\type{fl}\NC\type{ffi}\NC\type{ffl}\NC
+        \type{``}\NC\type{''}\NC\type{--}\NC\type{---}\NC\NR
+     \NC\show{ff}\NC\show{fi}\NC\show{fl}\NC\show{ffi}\NC\show{ffl}\NC
+        \show{``}\NC\show{''}\NC\show{--}\NC\show{---}\NC\NR
+     \stoptabulate
+     \egroup
+   \fi}
+
+\unexpanded\gdef\showfontstrip
+  {\dosingleempty\doshowfontstrip}
+
+\gdef\doshowfontstrip[#1]%
+  {\ifx\starttabulate\undefined
+     \@@onlyenglish\showfontstrip
+   \else
+     \bgroup
+     \def\dofontstripa##1##2%
+       {\tttf\string##1}
+     \def\dofontstripb##1##2%
+       {\ruledhbox{\switchtobodyfont[#1]##1{##2}}}
+     \def\dofontstripc##1##2%
+       {\setbox\scratchbox\hbox{\switchtobodyfont[#1]##1{##2}}%
+        \tt\tfx\the\ht\scratchbox}%
+     \def\dofontstripd##1##2%
+       {\setbox\scratchbox\hbox{\switchtobodyfont[#1]##1{##2}}%
+        \tt\tfx\the\wd\scratchbox}%
+     \def\fontstrip##1##2##3%
+       {\NC##2\rm{##3}\NC
+           ##2\ss{##3}\NC
+           ##2\tt{##3}\NC
+           ##2\mathematics{##3}\NC
+           \tttf##1\NR}
+     \starttabulate[|c|c|c|c|c|]
+       \fontstrip\relax\dofontstripa\empty
+       \TB
+       \fontstrip\relax\dofontstripb{xxxx}
+       \fontstrip\relax\dofontstripb{12345}
+       \fontstrip\relax\dofontstripb{(Agw)}
+       \TB
+       \fontstrip{(x height)}\dofontstripc{x}
+       \fontstrip{(m  width)}\dofontstripd{m}
+     \stoptabulate
+     \egroup
+   \fi}
+
+\ifdefined\databox \else \newbox\databox \fi
+
+\unexpanded\gdef\testminimalbaseline#1% to be used in a tabulate
+  {\setbox\databox\ruledhbox{#1}%
+   \scratchdimen\ht\databox
+   \advance\scratchdimen\dp\databox
+   \scratchtoks{#1}%
+   \expanded
+     {\NC \ruledhbox{\the\scratchtoks}
+      \noexpand \NC ->
+      \noexpand \NC \the\scratchdimen
+      \noexpand \NC =
+      \noexpand \NC \the\ht\databox
+      \noexpand \NC +
+      \noexpand \NC \the\dp\databox
+      \noexpand \NC \ifdim\scratchdimen<\baselineskip <
+                    \else\ifdim\scratchdimen=\baselineskip =
+                    \else > \fi\fi
+      \noexpand \NC \the\baselineskip
+      \noexpand \NC (\ifdim\scratchdimen>\baselineskip not \fi ok)
+      \noexpand \NC \noexpand \NR }}
+
+\unexpanded\gdef\showminimalbaseline
+  {\ifx\starttabulate\undefined
+     \@@onlyenglish\showminimalbaseline
+   \else
+     \starttabulate[||T|T|T|T|T|T|T|T|T|]
+     \testminimalbaseline{\hbox to 1em{\hss\showstruts\strut\hss}}%
+     \testminimalbaseline{(/)}%
+     \testminimalbaseline{$\frac{1}{2}x\normalsuperscript2\normalsubscript3$}
+     \stoptabulate
+   \fi}
+
+\unexpanded\gdef\showkerning#1%
+  {\bgroup
+   \let\MPfshowcommand\ruledhbox
+   \setMPtext\s!dummy{#1}%
+   \startMPcode draw textext(\MPstring\s!dummy);\stopMPcode
+   \egroup}
+
+\unexpanded\gdef\showcharratio
+  {\dowithnextboxcontent
+     {\switchtobodyfont[10pt]}%
+     {(\withoutpt\the\nextboxht,\withoutpt\the\nextboxdp)}%
+     \hbox}
+
+\unexpanded\gdef\showfontparameters
+  {\starttabulate[|tl|l|]
+   \NC slantperpoint   \NC \the\fontslantperpoint   \font \NC\NR
+   \NC interwordspace  \NC \the\fontinterwordspace  \font \NC\NR
+   \NC interwordstretch\NC \the\fontinterwordstretch\font \NC\NR
+   \NC interwordshrink \NC \the\fontinterwordshrink \font \NC\NR
+   \NC exheight        \NC \the\fontexheight        \font \NC\NR
+   \NC emwidth         \NC \the\fontemwidth         \font \NC\NR
+   \NC extraspace      \NC \the\fontextraspace      \font \NC\NR
+   \stoptabulate}
+
+\protect \endinput