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%{{{ pdcfsel.tex 1.1.6 92/07/17 -- basic font loading
% started - Damian Cugley <pdc@prg.ox.ac.uk> Tue. 23 Apr. 1991
{\catcode`\%=12 \gdef\ldfontsversion{1.1.6 <pdc 92/07/17>}}
% \catcode for SCCS's sake
\ifx\utilsversion\UNDEFINED \input utils \fi
\counta=\catcode`\_ \catcode`\_=11
%{{{ setting the AUTOLOAD flag
% If autoloading is true then the magnification and fonts used
% are written to a file \jobname.fnt in the hope that it will be
% possible to create them easily using the mff program.
\newwrite\font_list
\newif\if_autoloading
\def\autoloadfonts % set autoload flag to TRUE
{
\_autoloadingtrue
\immediate\openout\font_list=\jobname.fnt
\def\setmag##1{\writemag{##1}\mag##1\relax}
}
\def\setmag#1{\mag=#1\relax \write_mag }
\def\write_mag#1% #1 is file #2 is mag
{{%
\def\magstep##1{\ifcase##1 1000\or1200\or1440\or1728\or2074\or2488\fi}%
\edef\tmp{-s #1}%
\write\font_list\tmp
}}
%}}}
%{{{ how to set up the csname for one font
% All parameters are token strings
% #1 is fontset name, e.g., body
% #2 is the size part of external name
% -- either ` at 12pt' or `12'
% #3 is fam name -- e.g., rm
% #4 is "external" name sans size info -- e.g., cmbx
% This does the equivalent of \font\bodyrm=cmbx12
% except if autoloading then the actual \font is delayed.
\def\ld_font#1#2#3#4%
{\expcs\ifx{#1#3}\relax
\if_autoloading
\expcs\edef{#1#3}%
{%
\write\font_list{#4#2}% make note that font used
\def\noexpand\subfont
{\global\font\noexpcs{#1#3}=cmr10 }% use i\subfont if not found
\global\font\noexpcs{#1#3}=#4#2\relax % load the font
\noexpand\everyloadfont\noexpcs{#1#3}{#4#2}% hook
\expcs\noexpand{#1#3}% and select it
}%
\else
\global\expcs\font{#1#3}=#4#2\relax
\expcs\everyloadfont{#1#3}{#4#2}%
\fi
\else
% The font is already loaded; call \everyloadfont anyway
\expcs\everyloadfont{#1#3}{#4#2}%
\fi
}
% Ad-hoc laoding of fonts by user
% #1 is csname
% #2 is tokens for external name
\def\ldfont#1#2%
{%
{\escapechar=-1\xdef\ldfont_tmp{{\string#1}}}% get name sans \
\expandafter\ld_font\ldfont_tmp{#2}{}{}%
}%
%{%
% \if_autoloading \write\font_list{#2}\fi
% \def\subfont{\font#1=cmr10 }%
% \global\font#1=#2\relax
% \everyloadfont#1{#2}%
%}
% Hook for user's customization
% #1 is one token, the csname of the newly-loaded font
% #2 is token string that is its external name
\def\everyloadfont#1#2{}
%}}}
%{{{ how to set up a fontset
% fontset map macro:
% \FOOmap is of form {\m{rm}{ma}[\@]\f{it}{mai}...}
% \f -- non-maths font
% \m -- maths font (has \textfont and \scriptfont)
% \M -- ditto plus \scriptscriptfont
% Set up a fontset
% #1 is name
% #2 is \FOOmap
% #3 is size
% #4 is baselineskip
% #5 is script (fontset name)
% #6 is scriptscript
\def\fontset#1#2#3#4#5#6%
{
\xfontset{#1}{#2}{#3}
%
% set up the \bodyfonts macro
\expcs\edef{#1fonts}%
{%
\if_autoloading \expcs\noexpand{#1mathsfonts}\fi
\noexpand\set_short_names{#1}{#5}{#6}\noexpand#2%
% \def\rm{...}...
% \textfont\rmfam\bodyrm
\noexpand\set_baseline{#4}% set \baselineskip etc.
\noexpand\rm
}
\if_autoloading
% set up \bodymathsfonts macro
\expcs\def{#1mathsfonts}{\force_maths_fonts{#1}{#5}{#6}#2}
\fi
}
% xfontset can be used to make a fontset that is never selected
% in its own right -- e.g., used for maths subscripts only
%
% #1 is name
% #2 is map macro
% #3 is size
\def\xfontset#1#2#3%
{
% call \ld_font for each font:
\def\f##1##2{\ld_font{#1}{#3}{##1}{##2}}
\let\m=\f \let\M=\f
\def\@##1##2##3{\ld_font{#1}{ at #3pt }{##2}{##3}}%
#2
}
% Set up the \rm style names and the \textfont etc. vectors
% #1 -- fontset name -- e.g., body
% #2 -- script -- e.g., small
% #3 -- scriptscript -- e.g., tiny
% followed by map macro
\def\set_short_names#1#2#3%
{%
\let\@\relax
\def\f##1##2%
{%
\expcs\edef{##1}{\noexpcs{#1##1}}% has to be def'd not let'd
}%
\def\m##1##2%
{%
\expcs\textfont{##1fam}\csname#1##1\endcsname
\expcs\scriptfont{##1fam}\csname#2##1\endcsname
\expcs\edef{##1}{\fam\expcs\noexpand{##1fam}\expcs\noexpand{#1##1}}%
}%
\def\M##1%
{%
\expcs\scriptscriptfont{##1fam}\csname#3##1\endcsname
\m{##1}%
}%
}
\def\set_baseline#1%
{%
\baselineskip#1\relax \normalbaselineskip\baselineskip
\jot0.25\baselineskip
\smallskipamount 0.25\baselineskip plus 0.083\baselineskip
minus 0.083\baselineskip
\medskipamount 0.5\baselineskip plus 0.167\baselineskip
minus 0.167\baselineskip
\bigskipamount 1\baselineskip plus 0.333\baselineskip
minus 0.333\baselineskip
\abovedisplayskip=\medskipamount
\abovedisplayshortskip=\abovedisplayskip
\advance\abovedisplayshortskip-1\abovedisplayskip
\belowdisplayskip=\medskipamount
\belowdisplayshortskip=\smallskipamount
}
% Force all the fonts used in maths to be loaded --
% then redefine #1mathsfonts to be \relax
% #1 -- fontset name
% #2 -- script fontset name
% #3 -- scriptscript fontset name
\def\force_maths_fonts#1#2#3%
{%
%\message{Loading maths fonts for #1...}%
\let\@\relax
\def\f##1##2{}%
\def\m##1##2{\csname#1##1\endcsname \csname#2##1\endcsname}%
\def\M##1{\csname#3##1\endcsname \m{##1}}%
\global\expcs\let{#1mathsfonts}\relax
}
%}}}
%{{{ example fontset templates
\chardef\rmfam=0
\chardef\mifam=1
\chardef\syfam=2
% \itfam \bffam \ttfam \slfam set in plain.tex
%}}}
\catcode`\_=\counta
%}}} pdcfsel.tex
%Local variables:
%fold-folded-p: t
%tex-macros-p: t
%End:
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