%
% cod-edt.tex
%
%% Cyrillic font container with T2 encoding beta-support
%
% This file is future part of lxfonts package
% Version 3.4 // Patchlevel=0
% (c) O.Lapko
%
% This package belongs to the public domain under conditions similar to
% those of D. E. Knuth specified for the Computer Modern family of fonts.
% In particular, only the authors are entitled to modify this file
% and to save it under the same name.
%
% Content:
%
% Generating Cyrillic codings for both MF and TeX
%   and uccode/lccode/mathcode for TeX
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\lhvercheck(3,4)

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\catcode`\_=11
\catcode`\~=11
%
\ifx\encodingletters\undefined\let\encodingletters\fonttwoletters\fi
\long\def\CodesToBeGenerated{\input \codebase}
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% The idea and macros were borrowed from
% dcstdedt.tex (V1.1/22.3.92) (DC fonts package)
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\let\EA\expandafter
\def\empty{}
\def\minus{-}
\def\blank{ }
\def\Del#1{}

%%% TeX encoding config files creation macros
\def\singlecode#1 {
        \def\lettercode{#1}%
        \ifx\lettercode\blank\let\next\singlecode
        \else
           \ifx\lettercode\empty\let\next\singlecode
           \else
              \ifx\lettercode\minus\Del\lettercode\let\next\relax
              \else
		 \advance\tablecount1
		 \ifnum\tablecount=\currtable\let\next\docode
                 \else
		    \ifnum\tablecount<\currtable\let\next\singlecode
		    \else
		       \ifnum\currtable=0
		       \message{Wrong currtable: currtable=\the\currtable}%
		       \Del\lettercode\let\next\singlecode
		       \fi
		       \Del\lettercode\let\next\singlecode
		 \fi\fi
        \fi\fi\fi
        \next}

\def\singletablevalue#1 {%
        \edef\lettercode{#1}%
        \ifx\lettercode\blank\let\next\singletablevalue
        \else
           \ifx\minus\lettercode\Del\lettercode\let\next\relax
           \else
             \ifx\encodingletters\lettercode\currtable\codecount
	     \let\next\singletablevalue
             \else\advance\codecount1\let\next\singletablevalue
	     \fi
        \fi\fi
        \next}

\def\tablevalues(#1){\codecount=0\singletablevalue#1 -
        }

\def\Makecod #1 #2 (#3){%
        \edef\letternamemf{#1}%
        \edef\letnamestring{#2}%
        \tablecount=0\singlecode #3 -
        }

\def\makecod{\chardeffalse\upperfalse\Makecod
        }
\def\makeCOD{\chardeffalse\uppertrue\Makecod
        }
\def\makechr{\chardeftrue\accentfalse\Makecod
        }
\def\makeacc{\chardeftrue\accenttrue\Makecod
        }

\def\makechardef#1#2{%
        \def\charletter{#1}\edef\charcode{#2}\Dochfile%
        }
\def\makeaccdef#1#2{%
        \def\charletter{#1}\edef\charcode{#2}\Doacfile%
        }

\def\makeuclcletter#1#2#3#4{%
	\ifx#1\undefined %relax
	\else
           \def\upperletter{#1}\def\uppercode{#2}%
           \ifx#3\undefined %
              \message{\string#1: Uppercase letter has not pair}
	   \else
              \def\lowerletter{#3}\def\lowercode{#4}\Doucfile
           \fi
        \fi
        }

\def\docodetest#1[#2]#3\nothing{%
\def\lettercode{#2}%
\ifx\lettercode\empty
        \def\lettercodelig{#1}%
        \def\lettercode{#1}%
\else
        \def\lettercode{#1}%
        \def\lettercodelig{#2}%
\fi}

\def\docode{\expandafter\docodetest\lettercode[]\nothing
 \expandafter\codesUP\lettercode\endcodesUP
\Docode}

\def\LetA{A}\def\LetB{B}\def\LetC{C}\def\LetD{D}\def\LetE{E}\def\LetF{F}
\def\Leta{a}\def\Letb{b}\def\Letc{c}\def\Letd{d}\def\Lete{e}\def\Letf{f}
\def\codesUP#1#2\endcodesUP{\gdef\firstlet{#1}\gdef\secondlet{#2}%
	     \ifx\firstlet\Leta\let\firstlet\LetA\else
	        \ifx\firstlet\Letb\let\firstlet\LetB\else
	           \ifx\firstlet\Letc\let\firstlet\LetC\else
		      \ifx\firstlet\Letd\let\firstlet\LetD\else
		         \ifx\firstlet\Lete\let\firstlet\LetE\else
		            \ifx\firstlet\Letf\let\firstlet\LetF\else
	     \fi\fi\fi\fi\fi\fi
	     \ifx\secondlet\Leta\let\secondlet\LetA\else
	        \ifx\secondlet\Letb\let\secondlet\LetB\else
	           \ifx\secondlet\Letc\let\secondlet\LetC\else
		      \ifx\secondlet\Letd\let\secondlet\LetD\else
		         \ifx\secondlet\Lete\let\secondlet\LetE\else
		            \ifx\secondlet\Letf\let\secondlet\LetF\else
	     \fi\fi\fi\fi\fi\fi\Del\firstlet\Del\secondlet
}

{\catcode`\%=11 \catcode`\|=14
\gdef\MakeHeadFileDefinition#1#2{|
   \immediate\write#1{% This is #2\space in text format as of \today^^J%\space
        created by LHfonts (TeX4MF) version\space
        \number\lhmajver.\number\lhminver^^J%^^J%^^J}|
}
\ifchartest|
 \gdef\Docode{|
  \edef\dowrite{|
    \ifnum\chartestcount>\charteststart
     \ifnum\chartestcount<\chartestfinish
      \def\csname MF\letternamemf\endcsname{-1}|for ligs&kerning file
      \immediate\write\encfontoutput{CYR_.\letternamemf\space:=-1;}|
      \immediate\write\testfontoutput{testchar (\letternamemf);}|
      \immediate\write16{CYR_.\letternamemf:= \number\chartestcount;\blank}|
    \fi\fi\advance\chartestcount1
  }\dowrite\singlecode
 }
\else
 \catcode`\{=12 \catcode`\}=12
 \catcode`\(=1 \catcode`\)=2
 \catcode`\^=12
 \gdef\Docode(|
  \edef\dowrite(|
   \ifx\lettercode\nolettercode|relax
   \else
    \ifx\letnamestring\nolettercode|relax
    \else
     \ifMakeFontEnc
      \ifchardef
       \immediate\write\chardefoutput(|
        \ifaccent
         \string\makeaccdef  {\letnamestring} {"\firstlet\secondlet}|
        \else
         \string\makechardef {\letnamestring} {"\firstlet\secondlet}|
        \fi)|
      \else
       \immediate\write\rusdefoutput(|
        \ifupper
         \string\makeuclcletter\expandafter\string\csname\letnamestring\endcsname{\firstlet\secondlet}%|tempdefinition
        \else
         \|\expandafter\string\csname\letnamestring\endcsname{\firstlet\secondlet}
        \fi)|
       \expandafter\def\expandafter\csname\letnamestring\endcsname(\lettercode)|for lccode/uccode file
      \fi
      \ifBabel\else
       \ifchardef\else|only letters
        \immediate\write\codeoutput(|
         \ifx\lettercode\lettercodelig|no letter ligatures
          \ifcodehats|Cyrillic letter defined as ^^hex
           \string\def\expandafter\string\csname\letnamestring\endcsname{^^\lettercode}|
          \else
           \string\chardef\expandafter\string\csname\letnamestring\endcsname="\firstlet\secondlet|
          \fi
         \else
           \string\def\expandafter\string\csname\letnamestring\endcsname{\lettercodelig}|
         \fi
        )|
       \fi
      \fi
     \fi
    \fi
    \def\csname MF\letternamemf\endcsname(\lettercode)|for ligs&kerning file
    \immediate\write\encfontoutput(CYR_.\letternamemf\space:= hex"\lettercode";)|
    \immediate\write16(CYR_.\letternamemf:=hex"\lettercode";\blank)|
   \fi
  )\dowrite\singlecode
 )
\fi
\ifchartest|
\else|
(\catcode`\#=12 |\catcode`\^=7
\gdef\Doucfile(|
 \edef\dowrite(|
  \immediate\write\codeoutput(|
   \ifBabel
    \string\@tmpb\expandafter\string\upperletter{\uppercode}|
      \expandafter\string\lowerletter{\lowercode}
   \else
    \string\letter{^^\upperletter}{^^\lowerletter}
   \fi)|
 )\dowrite|\singlecode
)
\gdef\Dochfile(|
 \edef\dowrite(|
  \immediate\write\codeoutput(|
   \ifBabel
    \string\@tmpd\expandafter\string\csname\charletter\endcsname{\charcode}
   \else
    \string\chardef\expandafter\string\csname\charletter\endcsname=\charcode
   \fi)|
 )\dowrite|\singlecode
)
\gdef\Doacfile(|
 \edef\dowrite(|
  \immediate\write\codeoutput(|
   \ifBabel
    \string\@tmpc\expandafter\string\csname\charletter\endcsname{\charcode}
   \else
    \string\def\expandafter\string\csname\charletter\endcsname{\string\accent\charcode}
   \fi)|
 )\dowrite|\singlecode
)
\gdef\Doucfilehead(\ifBabel\else|
 \edef\dowrite(|
 \immediate\write\codeoutput(%)
 \immediate\write\codeoutput(\string\def\string\letter#1#2{%\space
    catcodes for Russian letters = \string\letter\space
    \string(like A-Z,a-z\string))
 \immediate\write\codeoutput(\string\catcode`#1=11\string\catcode`#2=11%)
 \immediate\write\codeoutput(\string\uccode`#1=`#1\string\lccode`#1=`#2%)
 \immediate\write\codeoutput(\string\uccode`#2=`#1\string\lccode`#2=`#2%)
 \immediate\write\codeoutput(|
 \string\count0`#1\string\advance\string\count0  by7000|
 \string\mathcode`#1=\string\count0%)
 \immediate\write\codeoutput(|
 \string\count0`#2\string\advance\string\count0  by7000|
 \string\mathcode`#2=\string\count0%)
 \immediate\write\codeoutput(})
 )\dowrite\fi|\singlecode
 )\catcode`\#=6)
\gdef\Doucfilefoot(\ifBabel\else|
 \edef\dowrite(|
 \immediate\write\codeoutput(\string\def\string\letter{}%)
 \immediate\write\codeoutput(%)
 )\dowrite\fi|\singlecode
)|
\fi
\catcode`\{=1 \catcode`\}=2
}

\immediate\write16{generated letters:}
\immediate\write16{==================}

\immediate\openout\encfontoutput=\encfontname
\ifchartest
 \immediate\openout\testfontoutput=\testfontname
\fi
\MakeHeadFileDefinition\encfontoutput{\Nencfontname}
\ifMakeFontEnc
 \immediate\openout\codeoutput   =\codefilename
 \MakeHeadFileDefinition\codeoutput{\Ncodefilename}
 \ifBabel
  {\catcode`\{=12 \catcode`\}=12
  \catcode`\(=1 \catcode`\)=2
  \immediate\write\codeoutput(%
  \string\ifx\string\ProvidesFile\string\undefined^^J%
  \|\def\string\ProvidesFile\string#1[\string#2]{}^^J\string\fi^^J^^J%
  \string\ProvidesFile{\Ncodefilename}^^J%
  \|\|\|[\today\space v1.1^^J%
  \|\|\|8-bit Cyrillic font encoding based on CM fonts^^J%
  \|\|\|created by LHfonts version\space
        \number\lhmajver.\number\lhminver])
  \catcode`\{=1 \catcode`\}=2
  }
 \fi
 \immediate\openout\rusdefoutput =\rusdefname
 \immediate\openout\chardefoutput=\chardefname
\fi
%
\CodesToBeGenerated
%
\immediate\closeout\encfontoutput
\ifchartest
 \immediate\closeout\testfontoutput
\fi
\ifMakeFontEnc
 \immediate\closeout\rusdefoutput
 \immediate\closeout\chardefoutput
 \Doucfilehead
 \input \rusdefname
 \Doucfilefoot
 \input \chardefname
 \ifBabel\else\begingroup\catcode`\%=11
  \immediate\write\codeoutput{%^^J\string\input\space rusdef %input additional macros}
 \endgroup\fi
 \immediate\closeout\codeoutput
\fi
\catcode`\~=13
\endinput
