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-%D \module
-%D [ file=supp-fun,
-%D version=1995.10.10,
-%D title=\CONTEXT\ Support Macros,
-%D subtitle=Fun Stuff,
-%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. Non||commercial use is
-%C granted.
-
-\unprotect
-
-%D This module implements some typographics tricks that can
-%D be fun when designing document layouts. The examples use
-%D macros that are typical to \CONTEXT, but non \CONTEXT\
-%D users can use the drop caps and first line treatment
-%D macros without problems. This module will be extended
-%D when the need for more of such tricks arises.
-
-\ifx \undefined \writestatus \input supp-mis.tex \relax \fi
-
-\writestatus{loading}{Context Support Macros / Fun Stuff}
-
-%D \macros
-%D {DroppedCaps}
-%D
-%D \startbuffer
-%D \DroppedCaps
-%D {\color[green]} {cmbx12} {2.2\baselineskip} {2pt} {\baselineskip} {2}
-%D Let's start
-%D \stopbuffer
-%D
-%D \haalbuffer with dropped caps, those blown up first
-%D characters of a paragraph. It's hard to implement a general
-%D mechanism that suits all situations, but dropped caps are so
-%D seldomly used that we can permit ourselves a rather user
-%D unfriendly implementation.
-%D
-%D \typebuffer
-%D
-%D As we will see, there are 7 different settings involved. The
-%D first argument takes a command that is used to do whatever
-%D fancy things we want to do, but normally this one will be
-%D empty. The second argument takes the font. Because we're
-%D dealing with something very typographic, there is no real
-%D reason to adopt complicated font switching schemes, a mere
-%D name will do. Font encodings can bring no harm, because the
-%D alphanumeric characters are nearly always located at their
-%D natural position in the encoding vector.
-%D
-%D \startbuffer
-%D \DroppedCaps
-%D {\color[red]} {cmbx12} {\baselineskip} {0pt} {0pt} {1}
-%D This simple
-%D \stopbuffer
-%D
-%D \haalbuffer case shows us what happens when we apply minimal
-%D values. Here we used:
-%D
-%D \typebuffer
-%D
-%D \startbuffer
-%D \DroppedCaps
-%D {\color[red]} {cmbx12} {2\baselineskip} {0pt} {\baselineskip} {2}
-%D In this ugly
-%D \stopbuffer
-%D
-%D \haalbuffer example the third argument tells
-%D this macro that we want a dropped capital scaled to the
-%D baseline distance. The two zero point arguments are the
-%D horizontal and vertical offsets and the last arguments
-%D determines the hanging indentation. In this paragraph we
-%D set the height to two times the baselinedistance and use
-%D two hanging lines:
-%D
-%D \typebuffer
-%D
-%D Here, the first character is moved down one baseline. Here
-%D we also see why the horizontal offset is important. The
-%D first example (showing the~L) sets this to a few points and
-%D also used a slightly larger height.
-%D
-%D Of course common users (typist) are not supposed to see this
-%D kind of fuzzy definitions, but fortunately \TEX\ permits us
-%D to hide them in macros. Using a macro also enables us to
-%D garantee consistency throughout the document:
-%D
-%D \startbuffer
-%D \def\MyDroppedCaps%
-%D {\DroppedCaps
-%D {\color[green]} {cmbx12} {5\baselineskip} {3pt} {3\baselineskip} {4}}
-%D
-%D \MyDroppedCaps The implementation
-%D \stopbuffer
-%D
-%D \typebuffer
-%D
-%D \haalbuffer of the general macro is rather simple and only
-%D depends on the arguments given and the dimensions of the
-%D strut box. We explicitly load the font, which is no problem
-%D because \TEX\ does not load a font twice. We could have
-%D combined some arguments, like the height, vertical offset
-%D and the number of lines, but the current implementation
-%D proved to be the most flexible. One should be aware of the
-%D fact that the offsets depend on the design of the glyphs
-%D used.
-
-\def\DroppedCaps#1#2#3#4#5#6#7%
- {\par
- \vskip#6\baselineskip
- \penalty-200
- \vskip-#6\baselineskip
- \setbox0=\hbox
- {\font\temp=#2 at #3%
- \temp#1{#7}\hskip#4}%
- \setbox0=\hbox
- {\lower#5\box0}%
- \ht0=\ht\strutbox
- \dp0=\dp\strutbox
- \hangindent\wd0
- \hangafter-#6%
- \noindent
- \hskip-\wd0
- \vbox{\box0}%
- \nobreak}
-
-%D Before we go to the next topic, we summarize this command:
-%D
-%D \starttypen
-%D \DroppedCaps {command} {font} {height} {hoffset} {voffset} {lines}
-%D \stoptypen
-
-%D \macros
-%D {TreatFirstLine}
-%D
-%D \startbuffer
-%D \TreatFirstLine {\sc} {} {} {}
-%D Instead of limiting its action to one token, the next macro
-%D treats the whole first line. This paragraph was typeset by
-%D saying:
-%D \stopbuffer
-%D
-%D \haalbuffer
-%D
-%D \typebuffer
-%D
-%D \startbuffer
-%D \TreatFirstLine {\startcolor[red]\bf} {\stopcolor} {} {}
-%D The combined color and font effect is also possible,
-%D although one must be careful in using macros that accumulate
-%D grouping, but the commands used here are pretty save in that
-%D respect.
-%D \stopbuffer
-%D
-%D \haalbuffer
-%D
-%D \typebuffer
-%D
-%D Before we explain the third and fourth argument, we show the
-%D implementation. Those who know a bit about the way \TEX\ treats
-%D tokens, will probably see in one glance that this
-%D alternative works all right for most text||only situations
-%D in which there is enough text available for the first line,
-%D but that more complicated things will blow. One has to live
-%D with that.
-
-\def\TreatFirstLine#1#2#3#4% before, after, first, next
- {\leavevmode
- \bgroup
- \forgetall
- \bgroup
- #1%
- \setbox0=\box\voidb@x
- \setbox2=\box\voidb@x
- \def\grabfirstline##1 %
- {\setbox2=\hbox
- {\ifvoid0
- {#3{\ignorespaces##1}}%
- \else
- \unhcopy0\ {#4{##1}}%
- \fi}%
- \ifdim\wd2=\!!zeropoint
- \setbox0=\box\voidb@x
- \setbox2=\box\voidb@x
- \let\next=\grabfirstline
- \else\ifdim\wd2>\hsize
- \hbox to \hsize{\strut\unhbox0}#2\egroup
- \break##1\
- \egroup
- \let\next=\relax
- \else
- \setbox0=\box2
- \let\next=\grabfirstline
- \fi\fi
- \next}%
- \grabfirstline}
-
-%D \startbuffer
-%D \gdef\FunnyCommand
-%D {\getrandomfloat\FunnyR{0}{1}%
-%D \getrandomfloat\FunnyG{0}{1}%
-%D \getrandomfloat\FunnyB{0}{1}%
-%D \definecolor[FunnyColor][r=\FunnyR,g=\FunnyG,b=\FunnyB]%
-%D \color[FunnyColor]}
-%D
-%D \TreatFirstLine {\bf} {} {\FunnyCommand} {\FunnyCommand}
-%D The third and fourth argument can be used to gain special effects on
-%D the individual words. Of course one needs to know
-%D \stopbuffer
-%D
-%D \haalbuffer
-%D a bit more about the macro package used to get real nice effects,
-%D but this example probably demonstrates the principles well.
-%D
-%D \typebuffer
-%D
-%D Like in dropped caps case, one can hide such treatments in a
-%D macro, like:
-%D
-%D \starttypen
-%D \def\MyTreatFirstLine%
-%D {\TreatFirstLine {\bf} {} {\FunnyCommand} {\FunnyCommand}}
-%D \stoptypen
-
-%D \macros
-%D {reshapebox}
-%D
-%D \startbuffer
-%D \beginofshapebox
-%D When using \CONTEXT, one can also apply this funny command to whole lines
-%D by using the reshape mechanism. Describing this interesting mechanism falls
-%D outside the scope of this module, so we only show the trick. This is an
-%D example of low level \CONTEXT\ functionality: it's all there, and it's
-%D stable, but not entirely meant for novice users.
-%D \endofshapebox
-%D
-%D \reshapebox{\FunnyCommand{\box\shapebox}} \flushshapebox
-%D \stopbuffer
-%D
-%D \haalbuffer
-%D
-%D \typebuffer
-%D
-%D This mechanism permits hyphenation and therefore gives
-%D better results than the previously discussed macro
-%D \type{\TreatFirstLine}.
-
-%D \macros
-%D {TreatFirstCharacter}
-%D
-%D \startbuffer
-%D \TreatFirstCharacter {\bf\color[green]} Just to be
-%D \stopbuffer
-%D
-%D \haalbuffer complete we also offer a very simple one
-%D character alternative, that is not that hard to understand:
-
-\def\TreatFirstCharacter#1#2% command, character
- {{#1{#2}}}
-
-%D A previous paragraph started with:
-%D
-%D \typebuffer
-
-%D \macros
-%D {StackCharacters}
-%D
-%D The next hack deals with vertical stacking.
-
-\def\StackCharacters#1#2#3#4% sequence vsize vskip command
- {\vbox #2
- {\forgetall
- \baselineskip0pt
- \def\StackCharacter##1{#4{##1}\cr\noalign{#3}}%
- \halign{\hss##\hss&##\cr\handletokens#1\with\StackCharacter\cr}}}
-
-%D \startbuffer
-%D \StackCharacters{CONTEXT}{}{\vskip.2ex}{\FunnyCommand}
-%D \stopbuffer
-%D
-%D Such a stack looks like:
-%D
-%D \startregelcorrectie
-%D \hbox to \hsize
-%D {$\hss\bfd
-%D \vcenter{\StackCharacters{TEX} {}{\vskip.2ex}{\FunnyCommand}}%
-%D \hss
-%D \vcenter{\StackCharacters{CON} {}{\vskip.2ex}{\FunnyCommand}}
-%D \hss
-%D \vcenter{\StackCharacters{TEXT} {}{\vskip.2ex}{\FunnyCommand}}
-%D \hss
-%D \vcenter{\StackCharacters{CONTEXT}{}{\vskip.2ex}{\FunnyCommand}}
-%D \hss$}
-%D \stopregelcorrectie
-%D
-%D and is typeset by saying:
-%D
-%D \typebuffer
-%D
-%D An alternative would have been
-%D
-%D \starttypen
-%D \StackCharacters{CONTEXT}{to 5cm}{\vfill}{\FunnyCommand}
-%D \stoptypen
-
-%D \macros
-%D {processtokens}
-%D
-%D At a lower level horizontal and vertical manipulations are
-%D already supported by:
-%D
-%D \starttypen
-%D \processtokens {begin} {between} {end} {space} {text}
-%D \stoptypen
-%D
-%D \startbuffer[a]
-%D \processtokens
-%D {\hbox to .5\hsize\bgroup} {\hfill} {\egroup}
-%D {\space} {LET'S HAVE}
-%D \stopbuffer
-%D
-%D \startbuffer[b]
-%D \processtokens
-%D {\vbox\bgroup\raggedcenter\hsize1em} {\vskip.25ex} {\egroup}
-%D {\strut} {FUN}
-%D \stopbuffer
-%D
-%D This macro is able to typeset:
-%D
-%D \leavevmode\hbox to \hsize
-%D {$\hfil\hfil
-%D \vcenter{\bf\haalbuffer[a]}%
-%D \hfil
-%D \vcenter{\bfd\haalbuffer[b]}%
-%D \hfil\hfil$}
-%D
-%D which was specified as:
-%D
-%D \typebuffer[a]
-%D \typebuffer[b]
-
-%D \macros
-%D {NormalizeFontHeight, NormalizeFontWidth}
-%D
-%D Next we introduce some font manipulation macros. When we
-%D want to typeset some text spread in a well defined area, it
-%D can be considered bad practice to manipulate character and
-%D word spacing. In such situations the next few macros can be
-%D of help:
-%D
-%D \starttypen
-%D \NormalizeFontHeight \name {sample text} {height} {font}
-%D \NormalizeFontWidth \name {sample text} {width} {font}
-%D \stoptypen
-%D
-%D These are implemented using an auxilliary macro:
-
-\def\NormalizeFontHeight%
- {\NormalizeFontSize\ht}
-
-\def\NormalizeFontWidth%
- {\NormalizeFontSize\wd}
-
-\def\NormalizeFontSize#1#2#3#4#5%
- {\setbox0=\hbox{\font\temp=#5 at 10pt\temp#3}%
- \dimen0=#10
- \dimen2=10000pt
- \divide\dimen2 by \dimen0
- \dimen4=#4
- \divide\dimen4 by 1000
- \dimen4=\number\dimen2\dimen4
- \edef\NormalizedFontSize{\the\dimen4}%
- \font#2=#5 at \NormalizedFontSize}
-
-%D Consider for instance:
-%D
-%D \startbuffer
-%D \NormalizeFontHeight \temp {X} {2\baselineskip} {cmr10}
-%D
-%D {\temp To Be Or Not To Be}
-%D \stopbuffer
-%D
-%D \typebuffer
-%D
-%D This shows up as (we also show the baselines):
-%D
-%D {\showbaselines\haalbuffer}
-%D
-%D The horizontal counterpart is:
-%D
-%D \startbuffer
-%D \NormalizeFontWidth \temp {This Sentence Fits} {\hsize} {cmr10}
-%D
-%D \hbox{\temp This Sentence Fits}
-%D \stopbuffer
-%D
-%D \typebuffer
-%D
-%D \startregelcorrectie
-%D \ruledhbox{\haalbuffer}
-%D \stopregelcorrectie
-%D
-%D The calculated font scale is avaliable in the macro
-%D \type{\NormalizedFontSize}.
-%D
-%D One can of course combine these macros with the ones
-%D described earlier, like in:
-%D
-%D \starttypen
-%D \NormalizeFontHeight \NicelyDroppedFont {X} {2\baselineskip} {cmbx12}
-%D
-%D \def\NicelyDroppedCaps%
-%D {\DroppedCaps
-%D {\kleur[groen]}
-%D {\NicelyDroppedFont}
-%D {2pt}
-%D {\baselineskip}
-%D {2}}
-%D \stoptypen
-%D
-%D It's up to the reader to test this one.
-
-\protect
-
-\endinput
+%D \module
+%D [ file=supp-fun,
+%D version=1995.10.10,
+%D title=\CONTEXT\ Support Macros,
+%D subtitle=Fun Stuff,
+%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. Non||commercial use is
+%C granted.
+
+\unprotect
+
+%D This module implements some typographics tricks that can
+%D be fun when designing document layouts. The examples use
+%D macros that are typical to \CONTEXT, but non \CONTEXT\
+%D users can use the drop caps and first line treatment
+%D macros without problems. This module will be extended
+%D when the need for more of such tricks arises.
+
+\ifx \undefined \writestatus \input supp-mis.tex \relax \fi
+
+\writestatus{loading}{Context Support Macros / Fun Stuff}
+
+\ifx\definefont\undefined
+ \def\definefont[#1][#2]{\expandafter\font\csname#1\endcsname=#2\relax}
+\fi
+
+%D \macros
+%D {DroppedCaps}
+%D
+%D \startbuffer
+%D \DroppedCaps
+%D {\color[green]} {cmbx12}
+%D {2.2\baselineskip} {2pt} {\baselineskip} {2}
+%D Let's start
+%D \stopbuffer
+%D
+%D \haalbuffer with dropped caps, those blown up first
+%D characters of a paragraph. It's hard to implement a general
+%D mechanism that suits all situations, but dropped caps are so
+%D seldomly used that we can permit ourselves a rather user
+%D unfriendly implementation.
+%D
+%D \typebuffer
+%D
+%D As we will see, there are 7 different settings involved. The
+%D first argument takes a command that is used to do whatever
+%D fancy things we want to do, but normally this one will be
+%D empty. The second argument takes the font. Because we're
+%D dealing with something very typographic, there is no real
+%D reason to adopt complicated font switching schemes, a mere
+%D name will do. Font encodings can bring no harm, because the
+%D alphanumeric characters are nearly always located at their
+%D natural position in the encoding vector.
+%D
+%D \startbuffer
+%D \DroppedCaps
+%D {\color[red]} {cmbx12}
+%D {\baselineskip} {0pt} {0pt} {1}
+%D This simple
+%D \stopbuffer
+%D
+%D \haalbuffer case shows us what happens when we apply minimal
+%D values. Here we used:
+%D
+%D \typebuffer
+%D
+%D \startbuffer
+%D \DroppedCaps
+%D {\color[red]} {cmbx12}
+%D {2\baselineskip} {0pt} {\baselineskip} {2}
+%D In this ugly
+%D \stopbuffer
+%D
+%D \haalbuffer example the third argument tells
+%D this macro that we want a dropped capital scaled to the
+%D baseline distance. The two zero point arguments are the
+%D horizontal and vertical offsets and the last arguments
+%D determines the hanging indentation. In this paragraph we
+%D set the height to two times the baselinedistance and use
+%D two hanging lines:
+%D
+%D \typebuffer
+%D
+%D Here, the first character is moved down one baseline. Here
+%D we also see why the horizontal offset is important. The
+%D first example (showing the~L) sets this to a few points and
+%D also used a slightly larger height.
+%D
+%D Of course common users (typist) are not supposed to see this
+%D kind of fuzzy definitions, but fortunately \TEX\ permits us
+%D to hide them in macros. Using a macro also enables us to
+%D garantee consistency throughout the document:
+%D
+%D \startbuffer
+%D \def\MyDroppedCaps%
+%D {\DroppedCaps
+%D {\color[green]} {cmbx12}
+%D {5\baselineskip} {3pt} {3\baselineskip} {4}}
+%D
+%D \MyDroppedCaps The implementation
+%D \stopbuffer
+%D
+%D \typebuffer
+%D
+%D \haalbuffer of the general macro is rather simple and only
+%D depends on the arguments given and the dimensions of the
+%D strut box. We explicitly load the font, which is no problem
+%D because \TEX\ does not load a font twice. We could have
+%D combined some arguments, like the height, vertical offset
+%D and the number of lines, but the current implementation
+%D proved to be the most flexible. One should be aware of the
+%D fact that the offsets depend on the design of the glyphs
+%D used.
+
+\def\DroppedCaps#1#2#3#4#5#6#7%
+ {\par
+ \vskip#6\baselineskip
+ \penalty-200
+ \vskip-#6\baselineskip
+ \setbox0=\hbox
+ {\definefont[temp][#2 at #3]%
+ \temp#1{#7}\hskip#4}%
+ \setbox0=\hbox
+ {\lower#5\box0}%
+ \ht0=\ht\strutbox
+ \dp0=\dp\strutbox
+ \hangindent\wd0
+ \hangafter-#6%
+ \noindent
+ \hskip-\wd0
+ \vbox{\forgetall\box0}%
+ \nobreak}
+
+%D Before we go to the next topic, we summarize this command:
+%D
+%D \starttypen
+%D \DroppedCaps
+%D {command} {font}
+%D {height} {hoffset} {voffset} {lines}
+%D \stoptypen
+
+%D \macros
+%D {TreatFirstLine}
+%D
+%D \startbuffer
+%D \TreatFirstLine {\sc} {} {} {}
+%D Instead of limiting its action to one token, the next macro
+%D treats the whole first line. This paragraph was typeset by
+%D saying:
+%D \stopbuffer
+%D
+%D \haalbuffer
+%D
+%D \typebuffer
+%D
+%D \startbuffer
+%D \TreatFirstLine {\startcolor[red]\bf} {\stopcolor} {} {}
+%D The combined color and font effect is also possible,
+%D although one must be careful in using macros that accumulate
+%D grouping, but the commands used here are pretty save in that
+%D respect.
+%D \stopbuffer
+%D
+%D \haalbuffer
+%D
+%D \typebuffer
+%D
+%D Before we explain the third and fourth argument, we show the
+%D implementation. Those who know a bit about the way \TEX\
+%D treats tokens, will probably see in one glance that this
+%D alternative works all right for most text||only situations
+%D in which there is enough text available for the first line,
+%D but that more complicated things will blow. One has to live
+%D with that. A workaround is rather trivial but obscures the
+%D principles used.
+
+\def\TreatFirstLine#1#2#3#4% before, after, first, next
+ {\leavevmode
+ \bgroup
+ \forgetall
+ \bgroup
+ #1%
+ \setbox0=\box\voidb@x
+ \setbox2=\box\voidb@x
+ \def\grabfirstline##1 %
+ {\setbox2=\hbox
+ {\ifvoid0
+ {#3{\ignorespaces##1}}%
+ \else
+ \unhcopy0\ {#4{##1}}%
+ \fi}%
+ \ifdim\wd2=\!!zeropoint
+ \setbox0=\box\voidb@x
+ \setbox2=\box\voidb@x
+ \let\next=\grabfirstline
+ \else\ifdim\wd2>\hsize
+ \hbox to \hsize{\strut\unhbox0}#2\egroup
+ \break##1\
+ \egroup
+ \let\next=\relax
+ \else
+ \setbox0=\box2
+ \let\next=\grabfirstline
+ \fi\fi
+ \next}%
+ \grabfirstline}
+
+%D \startbuffer
+%D \gdef\FunnyCommand
+%D {\getrandomfloat\FunnyR{0}{1}%
+%D \getrandomfloat\FunnyG{0}{1}%
+%D \getrandomfloat\FunnyB{0}{1}%
+%D \definecolor[FunnyColor][r=\FunnyR,g=\FunnyG,b=\FunnyB]%
+%D \color[FunnyColor]}
+%D
+%D \TreatFirstLine {\bf} {} {\FunnyCommand} {\FunnyCommand}
+%D The third and fourth argument can be used to gain special
+%D effects on the individual words. Of course one needs ...
+%D \stopbuffer
+%D
+%D \haalbuffer
+%D to know a bit more about the macro package used to get real
+%D nice effects, but this example probably demonstrates the
+%D principles well.
+%D
+%D \typebuffer
+%D
+%D Like in dropped caps case, one can hide such treatments in a
+%D macro, like:
+%D
+%D \starttypen
+%D \def\MyTreatFirstLine%
+%D {\TreatFirstLine{\bf}{}{\FunnyCommand}{\FunnyCommand}}
+%D \stoptypen
+
+%D \macros
+%D {reshapebox}
+%D
+%D \startbuffer
+%D \beginofshapebox
+%D When using \CONTEXT, one can also apply this funny command
+%D to whole lines by using the reshape mechanism. Describing
+%D this interesting mechanism falls outside the scope of this
+%D module, so we only show the trick. This is an example of
+%D low level \CONTEXT\ functionality: it's all there, and it's
+%D stable, but not entirely meant for novice users.
+%D \endofshapebox
+%D
+%D \reshapebox{\FunnyCommand{\box\shapebox}} \flushshapebox
+%D \stopbuffer
+%D
+%D \haalbuffer
+%D
+%D \typebuffer
+%D
+%D This mechanism permits hyphenation and therefore gives
+%D better results than the previously discussed macro
+%D \type{\TreatFirstLine}.
+
+%D \macros
+%D {TreatFirstCharacter}
+%D
+%D \startbuffer
+%D \TreatFirstCharacter{\bf\color[green]} Just to be
+%D \stopbuffer
+%D
+%D \haalbuffer complete we also offer a very simple one
+%D character alternative, that is not that hard to understand:
+
+\def\TreatFirstCharacter#1#2% command, character
+ {{#1{#2}}}
+
+%D A previous paragraph started with:
+%D
+%D \typebuffer
+
+%D \macros
+%D {StackCharacters}
+%D
+%D The next hack deals with vertical stacking.
+
+\def\StackCharacters#1#2#3#4% sequence vsize vskip command
+ {\vbox #2
+ {\forgetall
+ \baselineskip0pt
+ \def\StackCharacter##1{#4{##1}\cr\noalign{#3}}%
+ \halign
+ {\hss##\hss&##\cr
+ \handletokens#1\with\StackCharacter\cr}}}
+
+%D \startbuffer
+%D \StackCharacters{CONTEXT}{}{\vskip.2ex}{\FunnyCommand}
+%D \stopbuffer
+%D
+%D Such a stack looks like:
+%D
+%D \startregelcorrectie
+%D \hbox to \hsize
+%D {$\hss\bfd
+%D \vcenter{\StackCharacters{TEX} {}{\vskip.2ex}{\FunnyCommand}}%
+%D \hss
+%D \vcenter{\StackCharacters{CON} {}{\vskip.2ex}{\FunnyCommand}}
+%D \hss
+%D \vcenter{\StackCharacters{TEXT} {}{\vskip.2ex}{\FunnyCommand}}
+%D \hss
+%D \vcenter{\StackCharacters{CONTEXT}{}{\vskip.2ex}{\FunnyCommand}}
+%D \hss$}
+%D \stopregelcorrectie
+%D
+%D and is typeset by saying:
+%D
+%D \typebuffer
+%D
+%D An alternative would have been
+%D
+%D \starttypen
+%D \StackCharacters {CONTEXT} {to 5cm} {\vfill} {\FunnyCommand}
+%D \stoptypen
+
+%D \macros
+%D {processtokens}
+%D
+%D At a lower level horizontal and vertical manipulations are
+%D already supported by:
+%D
+%D \starttypen
+%D \processtokens {begin} {between} {end} {space} {text}
+%D \stoptypen
+%D
+%D \startbuffer[a]
+%D \processtokens
+%D {\hbox to .5\hsize\bgroup} {\hfill}
+%D {\egroup} {\space} {LET'S HAVE}
+%D \stopbuffer
+%D
+%D \startbuffer[b]
+%D \processtokens
+%D {\vbox\bgroup\raggedcenter\hsize1em}
+%D {\vskip.25ex} {\egroup} {\strut} {FUN}
+%D \stopbuffer
+%D
+%D This macro is able to typeset:
+%D
+%D \leavevmode\hbox to \hsize
+%D {$\hfil\hfil
+%D \vcenter{\bf\haalbuffer[a]}%
+%D \hfil
+%D \vcenter{\bfd\haalbuffer[b]}%
+%D \hfil\hfil$}
+%D
+%D which was specified as:
+%D
+%D \typebuffer[a]
+%D \typebuffer[b]
+
+%D \macros
+%D {NormalizeFontHeight, NormalizeFontWidth}
+%D
+%D Next we introduce some font manipulation macros. When we
+%D want to typeset some text spread in a well defined area, it
+%D can be considered bad practice to manipulate character and
+%D word spacing. In such situations the next few macros can be
+%D of help:
+%D
+%D \starttypen
+%D \NormalizeFontHeight \name {sample text} {height} {font}
+%D \NormalizeFontWidth \name {sample text} {width} {font}
+%D \stoptypen
+%D
+%D These are implemented using an auxilliary macro:
+
+\def\NormalizeFontHeight%
+ {\NormalizeFontSize\ht}
+
+\def\NormalizeFontWidth%
+ {\NormalizeFontSize\wd}
+
+\def\NormalizeFontSize#1#2#3#4#5%
+ {\bgroup
+ \dimen0=#4% #4 can be \ht0 or so
+ \setbox0=\hbox{\definefont[temp][#5 at 10pt]\temp#3}%
+ \dimen2=#10 % #1 is \wd or \ht
+ \dimen4=10000pt
+ \divide\dimen4 by \dimen2
+ \divide\dimen0 by 1000
+ \dimen0=\number\dimen4\dimen0
+ \definefont[temp][#5 at \the\dimen0]%
+ \temp
+ \expandafter
+ \egroup
+ \expandafter\font\expandafter#2\expandafter=\fontname\font\relax}
+
+%D Consider for instance:
+%D
+%D \startbuffer
+%D \NormalizeFontHeight \tmp {X} {2\baselineskip} {cmr10}
+%D
+%D {\tmp To Be Or Not To Be}
+%D \stopbuffer
+%D
+%D \typebuffer
+%D
+%D This shows up as (we also show the baselines):
+%D
+%D {\showbaselines\haalbuffer}
+%D
+%D The horizontal counterpart is:
+%D
+%D \startbuffer
+%D \NormalizeFontWidth \tmp {This Line Fits} {\hsize} {cmr10}
+%D
+%D \hbox{\tmp This Line Fits}
+%D \stopbuffer
+%D
+%D \typebuffer
+%D
+%D The calculated font scale is avaliable in the macro
+%D \type{\NormalizedFontSize}.
+%D
+%D \startregelcorrectie
+%D \ruledhbox{\haalbuffer}
+%D \stopregelcorrectie
+%D
+%D One can of course combine these macros with the ones
+%D described earlier, like in:
+%D
+%D \starttypen
+%D \NormalizeFontHeight {text} \DroppedFont {2\baselineskip} {cmbx12}
+%D
+%D \def\NicelyDroppedCaps%
+%D {\DroppedCaps
+%D {\kleur[groen]}
+%D {\DroppedFont}
+%D {2pt}
+%D {\baselineskip}
+%D {2}}
+%D \stoptypen
+%D
+%D It's up to the reader to test this one.
+
+\protect
+
+\endinput
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 05:12:42 +0000