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Viewing file:     composeglyphs (13.67 KB)      -rwxr-xr-x

#!no
# Create a composite font program.
# By J. Chroboczek <jec at dcs.ed.ac.uk>
#
# Copyright (c) 1996-1999 by J. Chroboczek
# This code may be distributed under the terms of the 
# GNU Public License, either version 2 of the license, or (at your
# option) any later version.

# Time-stamp: <99/05/14 02:37:45 jec>

$PROGNAME='composeglyphs';
$VERSION='v. 0.7.10 by J. Chroboczek';

sub usage {
  local($oldfh)=select(STDERR);
  print <<"ALAMAKOTA";
$PROGNAME $VERSION
$PROGNAME -e<encoding.afm> -E<encoding.ps>
$PROGNAME -i<input.afm> -o<output.ps> -c<composite.afm> -n<newname> 
    -e<base_encoding.afm> -t<target_encoding.afm> -a<output.afm>
    -C<output.afm.c>
ALAMAKOTA
  select($oldfh);
}

sub min {
  local($x1,$x2) = @_;
  if($x1<=$x2) {
    return $x1;
  } else {
    return $x2;
  }
}
    
sub max {
  local($x1,$x2) = @_;
  if($x1>=$x2) {
    return $x1;
  } else {
    return $x2;
  }
}
    
# A finite state automaton for parsing AFMs
sub readAFM {
  $fontName=('UnknownFont');
  local($afmname,$dochars,$doencoding,$docomposites)=@_;
  open(AFM,$afmname);

  $_=<AFM>;

  if (! (/^StartFontMetrics.*/)) 
    { die "$afmname is not an Adobe Font Metrics file" ; }

header: while (<AFM>) {
    if (/^FontName *(.*)$/) { $fontName=$1 ; }
    elsif (/^EncodingScheme *(.*)$/ && $doencoding) { 
      if ($doencoding eq 'target') {
        $encodingName=$1 ;
      } else {
        $baseEncodingName=$1;
      }
      
    } elsif (/^FontBBox *(-?[0-9]*)  *(-?[0-9]*)  *(-?[0-9]*)  *(-?[0-9]*)/) {
      @fontBBox=($1,$2,$3,$4); 
    }
    elsif (/^Start/) { reset ; last header ; }
  }

afmloop: while (TRUE) {
 garbage: while (TRUE) {
     if(/^Start([a-zA-Z0-9]*).*/) {
       $where=$1;
       last garbage;
     }
     elsif(/^EndFontMetrics.*/) { last afmloop; }
     $_=<AFM>;
   }

    if ($where eq 'CharMetrics') {
      while(<AFM>) {
        if (/^EndCharMetrics.*/) { next afmloop ; }
        $characterName='Unknown'; $characterCode=-1 ;
        @_=split(/ *; */);
        @bbox=();
        while($_ = $_[0]) {
          shift @_ ;
          if(/^C  *(-?[0-9]*)/) { $characterCode=$1 ; }
          elsif(/^CH  *([0-9a-fA-F]*)/) { $characterCode=hex($1) ; }
          elsif(/^N  *([a-zA-Z0-9\.]*)/) { $characterName=$1 ; }
          elsif(/^WX  *(-?[0-9\.]*)/) { $width=$1; }
          elsif(/^B  *(-?[0-9]*)  *(-?[0-9]*)  *(-?[0-9]*)  *(-?[0-9]*)/) {
            @bbox=($1,$2,$3,$4);
          }
        }
        if($dochars && !defined($characters{$characterName})) {
          $characters{$characterName}=$characterName;
          $characterIndex[$#characterIndex+1]=$characterName;
          $widths{$characterName}=$width;
          if($#bbox eq 3) {
            $BBox{$characterName}=$characterName;
            $BBox{$characterName,0}=$bbox[0];
            $BBox{$characterName,1}=$bbox[1];
            $BBox{$characterName,2}=$bbox[2];
            $BBox{$characterName,3}=$bbox[3];
          }
        }
        if($doencoding && ($characterCode>=0) && ($characterCode<=255)) {
          if($doencoding eq 'base') {
            $decoding{$characterName}=$characterCode;
            $baseEncoding[$characterCode]=$characterName;
          } elsif($doencoding eq 'target') {
            $encoding[$characterCode]=$characterName;
          }
        }
      }
    }

    if ($where eq 'KernData') {
      while(<AFM>) {
        if (/^EndKernData/) { next afmloop ; }
      }
    }  
  
    if ($where eq 'Composites') {   
     compositeloop: while(<AFM>) {
        if (/^EndComposites/) { next afmloop ; }
        if (!$docomposites) { next; }
        $characterName='Unknown'; $components=0; $currentComponent=0 ;
        @_=split(/\s*;\s*/);
        while($#_ >= 0) {
          $_=$_[0];
          shift @_;
          if(/^CC  *([a-zA-Z0-9\.]*)  *([0-9]*)/) { 
            $characterName=$1;
            if(defined($composites{$characterName})) {
              next compositeloop;
            }
            $components=$2;
            $compositeIndex[$#compositeIndex+1]=$characterName;
            $composites{$characterName}=$components;
          }
          elsif(/^PCC  *([a-zA-Z0-9.]*)  *(-?[0-9]*)  *(-?[0-9]*)/) {
            $composites{$characterName,$currentComponent}=$1;
            $composites{$characterName,$currentComponent,'dx'}=$2;
            $composites{$characterName,$currentComponent,'dy'}=$3;
            $currentComponent=$currentComponent+1;
          }
        }
        if($components!=$currentComponent) {
          die "Composite information inconsistent for character $characterName font $fontName";
        }
      }
    }
  }
}

# sub readSidebearings {
#   local($filename)=$_;
#   open(SB,$filename);
#   while(<SB>) {
#     if (/^%/) { next ; }
#     elsif (/ */) { next ; }
#     elsif (/^ *([-_$a-zA-Z0-9]*) *([-_$a-zA-Z0-9]*)* ([0-9]*) *$/) {
#       $sidebearings{$1,$2}=$3;
#     } else {
#       die "Error reading sidebearings data";
#     }
#   }
# }           

sub printEncoding {
  print "%!\n";
  print "% Automatically generated by the Ogonkify package\n";
  print "% Do not modify\n";
  print "% -- code follows this line --\n";
  print "%%BeginResource: encoding $baseEncodingName\n";
  print "/$baseEncodingName [\n";
  for($i=0; $i<256; $i++) {
    if($i!=0 && $i%64==0) {
      printf "%% %o\n", $i;
    }
    print "/$baseEncoding[$i]";
    if($i%8==7) {
      print "\n";
    } else {
      print " ";
    }
  }
  print "] def\n";
  print "%%EndResource\n";
}

sub printCAFM {
  $shortFontName=$shortnames{$fontName};
  if(!$shortFontName) {
    $shortFontName=$fontName;
  }
  $shortEncodingName=$shortnames{$baseEncodingName};
  if(!$shortEncodingName) {
    $shortEncodingName=$baseEncodingName;
  }
  print "/* Automatically generated by the Ogonkify package */\n";
  print "/* Do not modify */\n";
  print "/* -- code follows this line -- */\n";
  printf "unsigned int %s_%s_WX [256] = {\n  ",
    $shortEncodingName,$shortFontName;
  for($i=0; $i<256; $i++) {
    if(defined($w=$widths{$baseEncoding[$i]})) {
      printf "%d",$w;
    } else {
      print "0";
    }
    if($i<255) {
      if($i%8==7) {
        print ",\n  ";
      } else {
        print ", ";
      }
    }
  }
  print "\n};\n\n";
}
    


sub printAFM {
  print <<"ALAMAKOTA";
StartFontMetrics 3.0
Comment Automatically generated by the Ogonkify package
Comment Do not modify
FontName $newName
EncodingScheme $encodingName
FullName $newName Composite font
FontBBox $newFontBBox[0] $newFontBBox[1] $newFontBBox[2] $newFontBBox[3]
ALAMAKOTA

  $numChars=0;
  for($i=0; $i<=$#characterIndex; $i++) {
    $charname=$characterIndex[$i];
    if($characters{$charname} &&
       ($decoding{$charname} ||
        $characters{$charname} eq 'GENERATEDCOMPOSITE')) {
      $numChars++;
    }
  }

  print "StartCharMetrics $numChars\n";
  for($i=0;$i<256;$i++) {
    $charname=$encoding[$i];
    if($characters{$charname} &&
       ($decoding{$charname} || 
        $characters{$charname} eq 'GENERATEDCOMPOSITE')) {
      printf "C %d ; WX %d ; N %s ;",$i,$widths{$encoding[$i]},$encoding[$i];
      if($BBox{$encoding[$i]}) {
        printf " B %d %d %d %d ;\n",
        $BBox{$encoding[$i],0},
        $BBox{$encoding[$i],1},
        $BBox{$encoding[$i],2},
        $BBox{$encoding[$i],3};
      } else {
        print "\n";
      }
      $characters{$charname}='DONE';
    }
  }
  for($i=0; $i<=$#characterIndex; $i++) {
    $charname=$characterIndex[$i];
    if($characters{$charname} &&
       $characters{$charname} ne 'DONE' &&
       ($decoding{$charname} ||
        $characters{$charname} eq 'GENERATEDCOMPOSITE')) {
      printf "C %d ; WX %d ; N %s ;",-1,
        $widths{$characterIndex[$i]},$characterIndex[$i];
      if($BBox{$characterIndex[$i]}) {
        printf " B %d %d %d %d ;\n",
        $BBox{$characterIndex[$i],0},
        $BBox{$characterIndex[$i],1},
        $BBox{$characterIndex[$i],2},
        $BBox{$characterIndex[$i],3};
      } else {
        print "\n";
      }
    }
  }
  print "EndCharMetrics\n";
  print "EndFontMetrics\n";
}

sub printComposite {
  if($baseEncoding[0] ne '.notdef') {
    warn "Character 0 is not '.notdef' but '$baseEncoding[0]'; proceeding anyway";
  }

# just get a rough upper approximation
  $entries=0;
  for($i=0; $i<=$#compositeIndex; $i++) {
    $charName=$compositeIndex[$i];
    if(!($characters{$charName} && $decoding{$charName}) &&
       $composites{$charName} == 2 &&
       $decoding{$composites{$charName,0}} &&       
       $decoding{$composites{$charName,1}}) {
      $entries++;
    }
  }

  print <<"ALAMAKOTA";
%!
% Automatically generated by the Ogonkify package
% Do not modify
% -- code follows this line --
%%BeginResource: font $newName
/$oldName /$newName $baseEncodingName $encodingName $entries dict
ALAMAKOTA
  
  for($i=0; $i<=$#compositeIndex; $i++) {
    $charName=$compositeIndex[$i];
    if(!($characters{$charName} && $decoding{$charName})
       && $composites{$charName}) {
      if($composites{$charName}==2 && 
         ($dx=$composites{$charName,0,'dx'})==0 && 
         ($dy=$composites{$charName,0,'dy'})==0) {
        $dx=$composites{$charName,1,'dx'};
        $dy=$composites{$charName,1,'dy'};
        if(($C1=$decoding{$CN1=$composites{$charName,0}}) && 
           ($C2=$decoding{$CN2=$composites{$charName,1}})) {
          if(!defined($characters{$charName})) {
            $characterIndex[$#characterIndex+1]=$charName;
          }
          $characters{$charName}='GENERATEDCOMPOSITE';
          $widths{$charName}=$widths{$CN1};
          $BBox{$charName}='GENERATEDCOMPOSITE';
          $BBox{$charName,0}=&min($BBox{$CN1,0},$BBox{$CN2,0}+$dx);
          $BBox{$charName,1}=&min($BBox{$CN1,1},$BBox{$CN2,1}+$dy);
          $BBox{$charName,2}=&max($BBox{$CN1,2},$BBox{$CN2,2}+$dx);
          $BBox{$charName,3}=&max($BBox{$CN1,3},$BBox{$CN2,3}+$dy);
          printf "dup /$charName [%d %d %d %d] put\n",
            $C1, $dx, $dy, $C2;
        } else {
          warn "Composition for $charName uses char not in base encoding -- not used\n";
        }
      } else {
        warn "Composition for $charName not in the right form -- not used\n";
      }
    }
  }
  print "makeComposite\n%%EndResource\n\n";
}

# Main program

%shortnames=('Times-Roman','Times',
             'Times-Roman-Ogonki','Times',
             'Times-Bold', 'Times_Bold',
             'Times-Bold-Ogonki', 'Times_Bold',
             'Times-Italic', 'Times_Italic',
             'Times-Italic-Ogonki', 'Times_Italic',
             'Times-BoldItalic', 'Times_BoldItalic',
             'Times-BoldItalic-Ogonki', 'Times_BoldItalic',
             'Courier-Ogonki','Courier',
             'Helvetica-Ogonki','Helvetica',
             'Helvetica-Bold','Helvetica_Bold',
             'Helvetica-Bold-Ogonki','Helvetica_Bold',
             'Helvetica-Oblique','Helvetica_Oblique',
             'Helvetica-Oblique-Ogonki','Helvetica_Oblique',
             'Helvetica-BoldOblique','Helvetica_BoldOblique',
             'Helvetica-BoldOblique-Ogonki','Helvetica_BoldOblique',
             'ASCIIEncoding', 'ascii',
             'ISOLatin1Encoding','latin1',
             'ISOLatin2Encoding','latin2',
             'ISOLatin3Encoding','latin3',
             'ISOLatin4Encoding','latin4',
             'ISOLatin5Encoding','latin5',
             'ISOLatin6Encoding','latin6',
             'ISOLatin7Encoding','latin7',
             'CP1250Encoding','cp1250',
             'MacintoshEncoding', 'mac',
             'IBMPCEncoding', 'ibmpc',
             'HPRomanEncoding', 'hp');

# %sidebearings=() ;


$encodingName='UnknownEncoding' ;
$#encoding=256;
for($i=0; $i<256; $i++) {
  $encoding[$i]='.notdef';
}
$baseEncodingName='UnknownEncoding';
$#baseEncoding=256;
for($i=0; $i<256; $i++) {
  $baseEncoding[$i]='.notdef';
}
%characters=();
@characterIndex=();
%decoding=();
@compositeIndex=();
%composites=();
%widths=();
%BBox=();

$compName='UnknownFont';
$baseEncodingAFM='ogonki.afm';
$encodingAFM='latin2.afm';
$oldAFM='Times-Roman.afm';
$compFile='Times-Roman-Ogonki.ps';

while($_ = $ARGV[0], /^-/) {
  shift;
  if(/^--$/) {last;}
  elsif (/^-i$/) { $oldAFM=$ARGV[0]; shift; }
  elsif (/^-i(.*)/) { $oldAFM=$1; }
  elsif (/^-o$/) { $compFile=$ARGV[0]; shift; }
  elsif (/^-o(.*)/) { $compFile=$1; }
  elsif (/^-c$/) { $compAFM=$ARGV[0]; shift; }
  elsif (/^-c(.*)/) { $compAFM=$1; }
  elsif (/^-n$/) { $newName=$ARGV[0]; shift; }
  elsif (/^-n(.*)/) { $newName=$1; }
  elsif (/^-e$/) { $baseEncodingAFM=$ARGV[0]; shift; }
  elsif (/^-e(.*)/) { $baseEncodingAFM=$1; }
  elsif (/^-t$/) { $encodingAFM=$ARGV[0]; shift; }
  elsif (/^-t(.*)/) { $encodingAFM=$1; }
  elsif (/^-a$/) { $outputAFM=$ARGV[0]; shift; }
  elsif (/^-a(.*)/) { $outputAFM=$1; }
  elsif (/^-E$/) { $encodingFile=$ARGV[0]; shift; }
  elsif (/^-E(.*)/) { $encodingFile=$1; }
  elsif (/^-C$/) { $CAFMFile=$ARGV[0]; shift; }
  elsif (/^-C(.*)/) { $CAFMFile=$1; }
  else { &usage ; die "Quitting"; }
}

if($encodingFile) {             # generating a PostScript encoding
  &readAFM($baseEncodingAFM,0,'base',0);
  open(ENCODING,'>' . $encodingFile);
  $oldfh = select(ENCODING); 
  &printEncoding;
  select($oldfh);
} elsif($CAFMFile) {            # generating a CAFM file for a2ps
  &readAFM($baseEncodingAFM,0,'base',0);
  &readAFM($oldAFM,TRUE,0,0);
    if(!$widths{'.notdef'}) {
    $widths{'.notdef'}=0;
  }
  open(CAFM,'>' . $CAFMFile);
  $oldfh=select(CAFM);
  &printCAFM;
  select($oldfh);
} else {                        # generating PS font programs
  &readAFM($baseEncodingAFM,0,'base',0);
  &readAFM($encodingAFM,0,'target',0);
  &readAFM($oldAFM,TRUE,0,TRUE);
  @newFontBBox=@fontBBox;
  $oldName=$fontName;
  if($compAFM) {
    &readAFM($compAFM,0,0,TRUE);
    $compName=$fontName;
  }
  if(!$newName) {
    $newName=$compName;
  }
  open(COMPOSITE,'>' . $compFile);
  $oldfh = select(COMPOSITE); 
  &printComposite;
  if($outputAFM) {
    open(OUTAFM,'>' . $outputAFM);
    select(OUTAFM);
    &printAFM;
  }
  select($oldfh);
}

### Local Variables: ***
### mode: perl ***
### End: ***