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% The file kp-font.tex (C) Petr Olsak, 2016
% Use "\input kp-fonts" to set the KP Fonts font family.

% See cs-heros.tex file for more information about font modifiers.

% See http://petr.olsak.net/csplain.html#font for information about CSplain
% (or OPmac) font concept and about font modifiers.
% See kpfonts-plain.pdf article about "KP-fonts in plain TeX"

\ifx\ffdecl\undefined \input ff-mac \fi

\ffdecl [KP Fonts] 
   {\caps \bcaps \slant \sans \ttset \wlight \bext \noflig \oldn \olds \oldsv}
   {\rm \bf \it \bi} {22 mods + exchars} {KP} {8t 7t}

% Modifiers: 
%    \caps ..... Caps & small caps
%    \bcaps .... Bigger small-caps
%    \slant .... Slanted
%    \sans ..... Sans serif
%    \ttset .... TypeWriter set
%    \wlight ... Weight Light
%    \bext ..... Bold extended
%    \noflig ... no f ligatures
%    \oldn ..... Old style numbers
%    \olds ..... Old style all
%    \oldsv .... Very old style
%    \kpreset .. Returns all modifications to default values
% Usage: [modifiers]\rm or \bf or \it or \bi or \one or \fam
% Of course, you cannot combine all with all.
% \lr \rm \mr \bf ; \li \it \mi \bi ... extended variant selectors
% See the file kp-math.tex for math modifiers documentation.

\tryprotected\def\kpvars#1{%
   \if n#1\ffvars {mn}  {b\bextV n}  {mit}   {b\bextV it}\fi   % Normal family
   \if s#1\ffvars {mn}  {b\bextV n}  {msl}   {b\bextV sl}\fi   % Slanted family
   \if c#1\ffvars {msc} {b\bextV sc} {mscsl} {b\bextV scsl}\fi % Caps family
   \def\kpvarV{#1}%
}
\kpvars{n}

\def\caps{\kpvars{c}\ffsetV{noflig}{}\ffsetX}
\def\slant{\kpvarnoC{\kpvars{s}}\ffsetX}
\tryprotected\def\kpvarnoC#1{\if c\kpvarV \else#1\fi} 

\def\sans{\slant\ffsetV{subfam}{ss}\ffsetV{wlight}{}\ffsetX}
\def\ttset{\kpvars{n}\slant\ffsetV{subfam}{tt}%
   \ffsetV{bext}{}\ffsetV{noflig}{}\ffsetV{wlight}{}\ffsetV{bcaps}{}\ffsetX}

\def\bext{\ffsetV{bext}{x}\ffsetX}
\def\bcaps{\caps\ffsetV{bcaps}{k}\ffsetX}
\def\wlight{\ffsetV{wlight}{l}\ffsetX}
\def\noflig{\ffsetV{noflig}{f}\ffsetX}
\def\oldn{\ffsetV{old}{osn}\ffsetX}
\def\olds{\ffsetV{old}{os}\ffsetX}
\def\oldsv{\ffsetV{old}{vos}\ffsetX}
\def\kpreset{\kpvars{n}\ffsetV{subfam}{}\ffsetV{wlight}{}\ffsetV{bcaps}{}%
   \ffsetV{noflig}{}\ffsetV{old}{}\ffsetV{bext}{}\ffsetX}

\def\lr{\wlight\rm} \def\li{\wlight\it} \def\mr{\wlight\bf} \def\mi{\wlight\bi}

\def\subfamV{} \def\wlightV{} \def\bcapsV{} \def\nofligV{} \def\oldV{} \def\bextV{} 

\ismacro\fotenc{8t}\ifttrue

   \font\tenrm = jkpmn8t  \sizespec
   \font\tenbf = jkpbn8t  \sizespec
   \font\tenit = jkpmit8t \sizespec
   \font\tenbi = jkpbit8t \sizespec

   \def\ffnamegen{jkp\subfamV\wlightV\bcapsV\nofligV\oldV\ffvarV 8t}

\fi

\ismacro\fotenc{7t}\ifttrue

   \font\tenrm = jkpmn7t  \sizespec
   \font\tenbf = jkpbn7t  \sizespec
   \font\tenit = jkpmit7t \sizespec
   \font\tenbi = jkpbit7t \sizespec

   \def\ffnamegen{jkp\subfamV\wlightV\bcapsV\nofligV\oldV\ffvarV 7t}

\fi
\tenrm

\def\Qtail{{\olds\one Q}}

\input exchars % 7c encoding implemented by exchars.tex macro

\let\euro=\exeuro
\ifx\mubyte\undefined \else \mubyte\euro ^^e2^^82^^ac\endmubyte \fi

\def\ffloadhookA#1{% if desired metric is not registered then print warning
   \expandafter\ifx\csname ex:\ffnamegen/TS1\endcsname \relax
      \ffmessage{FONT warning: KPfonts - subfam="\subfamV" wlight="\wlightV"
         bcaps="\bcapsV", noflig="\nofligV", old="\oldV", bext="\bextV" of
         variant="\ffvarV" in encoding="\fotenc" (\ffnamegen) unavailable}%
      \csname iffalse\expandafter\endcsname 
   \else % font is loaded
}
\def\ffaddtfm #1 {\ifx\relax#1\relax \else 
   \setexfont {jkp#1\fotenc} TS1 \kpsevenc{#1} % register the metric for exchars
   \expandafter\ffaddtfm\fi
}
\def\kpsevenc#1{\kpsevencA #1;f\relax}  % does mapping from *8t metric to *7c
\def\kpsevencA#1f#2\relax{\kpsevencB #1#2k\relax}  % strip off irrelevant features
\def\kpsevencB#1k#2\relax{\kpsevencC #1#2osn\relax}
\def\kpsevencC#1osn#2\relax{\kpsevencD #1#2vos\relax}
\def\kpsevencD#1vos#2\relax{\kpsevencE #1#2os\relax}
\def\kpsevencE#1os#2\relax{\kpsevencF#1#2\relax}
\def\kpsevencF#1;#2\relax{jkp#17c}

\ffaddtfm  % register all metrics from "ls *8t.tfm" output:
 bit        kosbsc     lkbsc       losnbsc    osmscsl    sskbxscsl    ssosnmsc
 bn         kosbscsl   lkbscsl     losnbscsl  osmsl      sskmsc       ssosnmscsl
 bsc        kosbxsc    lkbxsc      losnbsl    osnbit     sskmscsl     ssosnmsl
 bscsl      kosbxscsl  lkbxscsl    losnbxit   osnbn      sskosbsc     ssvosbn
 bsl        kosmsc     lkmsc       losnbxn    osnbsc     sskosbscsl   ssvosbsc
 bxit       kosmscsl   lkmscsl     losnbxsc   osnbscsl   sskosbxsc    ssvosbsl
 bxn        kosnbsc    lkosbsc     losnbxscsl osnbsl     sskosbxscsl  ssvosbxn
 bxsc       kosnbscsl  lkosbscsl   losnbxsl   osnbxit    sskosmsc     ssvosbxsc
 bxscsl     kosnbxsc   lkosbxsc    losnmit    osnbxn     sskosmscsl   ssvosbxsl
 bxsl       kosnbxscsl lkosbxscsl  losnmn     osnbxsc    sskosnbsc    ssvosmn
 fbit       kosnmsc    lkosmsc     losnmsc    osnbxscsl  sskosnbscsl  ssvosmsc
 fbn        kosnmscsl  lkosmscsl   losnmscsl  osnbxsl    sskosnbxsc   ssvosmsl
 fbsl       lbit       lkosnbsc    losnmsl    osnmit     sskosnbxscsl ttbn
 fbxit      lbn        lkosnbscsl  lvosbit    osnmn      sskosnmsc    ttbsl
 fbxn       lbsc       lkosnbxsc   lvosbn     osnmsc     sskosnmscsl  ttmn
 fbxsl      lbscsl     lkosnbxscsl lvosbsl    osnmscsl   ssmn         ttmsl
 fmit       lbsl       lkosnmsc    lvosbxit   osnmsl     ssmsc        ttosbn
 fmn        lbxit      lkosnmscsl  lvosbxn    ssbn       ssmscsl      ttosbsl
 fmsl       lbxn       lmit        lvosbxsl   ssbsc      ssmsl        ttosmn
 fosnbit    lbxsc      lmn         lvosmit    ssbscsl    ssosbn       ttosmsl
 fosnbn     lbxscsl    lmsc        lvosmn     ssbsl      ssosbsc      ttosnbn
 fosnbsl    lbxsl      lmscsl      lvosmsl    ssbxn      ssosbscsl    ttosnbsl
 fosnbxit   lfbit      lmsl        mit        ssbxsc     ssosbsl      ttosnmn
 fosnbxn    lfbn       losbit      mn         ssbxscsl   ssosbxn      ttosnmsl
 fosnbxsl   lfbsl      losbn       msc        ssbxsl     ssosbxsc     ttvosbn
 fosnmit    lfbxit     losbsc      mscsl      ssfbn      ssosbxscsl   ttvosbsl
 fosnmn     lfbxn      losbscsl    msl        ssfbsl     ssosbxsl     ttvosmn
 fosnmsl    lfbxsl     losbsl      osbit      ssfbxn     ssosmn       ttvosmsl
 fssosnbn   lfmit      losbxit     osbn       ssfbxsl    ssosmsc      vosbit
 fssosnbsl  lfmn       losbxn      osbsc      ssfmn      ssosmscsl    vosbn
 fssosnbxn  lfmsl      losbxsc     osbscsl    ssfmsl     ssosmsl      vosbsl
 fssosnbxsl lfosnbit   losbxscsl   osbsl      ssfosnbn   ssosnbn      vosbxit
 fssosnmn   lfosnbn    losbxsl     osbxit     ssfosnbsl  ssosnbsc     vosbxn
 fssosnmsl  lfosnbsl   losmit      osbxn      ssfosnbxn  ssosnbscsl   vosbxsl
 kbsc       lfosnbxit  losmn       osbxsc     ssfosnbxsl ssosnbsl     vosmit
 kbscsl     lfosnbxn   losmsc      osbxscsl   ssfosnmn   ssosnbxn     vosmn
 kbxsc      lfosnbxsl  losmscsl    osbxsl     ssfosnmsl  ssosnbxsc    vosmsl
 kbxscsl    lfosnmit   losmsl      osmit      sskbsc     ssosnbxscsl
 kmsc       lfosnmn    losnbit     osmn       sskbscsl   ssosnbxsl
 kmscsl     lfosnmsl   losnbn      osmsc      sskbxsc    ssosnmn
 {}

\ifx\loadmathfonts\relax \endinput \fi
\ifx\mathpreloaded K\else \input kp-math \fi                     

\endinput