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#!/usr/bin/perl
# Convert the PostScript output of Netscape to use an arbitrary encoding.
# Do font remapping if asked for.
# 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 04:09:10 jec>

# Warning: this program is written in Perl

$PROGNAME='ogonkify';
$VERSION='v. 0.7.1 by J. Chroboczek';

# Directory with the IBM Courier fonts
$IBMFONTS="";
# Directory with ogonkify's prologs
$LIBDIR="/usr/share/ogonkify";

@procsets=();
@downloadFonts=();
$encoding='L2';
%encodings=('L1',"$LIBDIR/latin1.enc",'L2',"$LIBDIR/latin2.enc",
            'L3',"$LIBDIR/latin3.enc",'L4',"$LIBDIR/latin4.enc",
            'L5',"$LIBDIR/latin5.enc",'L6',"$LIBDIR/latin6.enc",
            'L7',"$LIBDIR/latin7.enc",'L9',"$LIBDIR/latin9.enc",
            'CP1250',"$LIBDIR/cp1250.enc",'cp1250',"$LIBDIR/cp1250.enc",
            'ibmpc',"$LIBDIR/ibmpc.enc",'mac',"$LIBDIR/mac.enc",
            'HP',"$LIBDIR/hp.enc");
%encodingvecs=('L1','ISOLatin1Encoding','L2','ISOLatin2Encoding',
               'L3','ISOLatin3Encoding','L4','ISOLatin4Encoding',
               'L5','ISOLatin5Encoding','L6','ISOLatin6Encoding',
               'L7','ISOLatin7Encoding','L9','ISOLatin9Encoding',
               'CP1250','CP1250Encoding','cp1250','CP1250Encoding',
               'ibmpc','IBMPCEncoding', 'mac','MacintoshEncoding',
               'HP','HPRomanEncoding');
@standardFont=
  ('Courier', 'Courier-Oblique', 'Courier-Bold', 'Courier-BoldOblique',
   'Times-Roman', 'Times-Italic', 'Times-Bold', 'Times-BoldItalic',
   'Helvetica', 'Helvetica-Oblique', 'Helvetica-Bold',
   'Helvetica-BoldOblique');
%remappings=();
$doNetscape=0;
$doMosaic=0;
$doStarOffice=0;
$doApplixWare=0;
$doXfig=0;
$doMp=0;
$recodeStandardFonts=0;
$eurify=0;

sub courierRemappings {
  $remappings{'Courier-Oblique'}="Courier-Italic";
  $remappings{'Courier-BoldOblique'}="Courier-BoldItalic";
  if($doApplixWare) {
    $remappings{'Courier_AX'}="Courier";
    $remappings{'Courier-Bold_AX'}="Courier-Bold";
    $remappings{'Courier-Oblique_AX'}="Courier-Italic";
    $remappings{'Courier-BoldOblique_AX'}="Courier-BoldItalic";
  }
}

sub timesRemappings {
  $remappings{'Times-Roman'}="Times-Roman-Ogonki";
  $remappings{'Times-Bold'}="Times-Bold-Ogonki";
  $remappings{'Times-Italic'}="Times-Italic-Ogonki";
  $remappings{'Times-BoldItalic'}="Times-BoldItalic-Ogonki";
  if($doApplixWare) {
    $remappings{'Times-Roman_AX'}="Times-Roman-Ogonki";
    $remappings{'Times-Bold_AX'}="Times-Bold-Ogonki";
    $remappings{'Times-Italic_AX'}="Times-Italic-Ogonki";
    $remappings{'Times-BoldItalic_AX'}="Times-BoldItalic-Ogonki";
  }
}

sub helveticaRemappings {
  $remappings{'Helvetica'}="Helvetica-Ogonki";
  $remappings{'Helvetica-Bold'}="Helvetica-Bold-Ogonki";
  $remappings{'Helvetica-Oblique'}="Helvetica-Oblique-Ogonki";
  $remappings{'Helvetica-BoldOblique'}="Helvetica-BoldOblique-Ogonki";
  if($doApplixWare) {
    $remappings{'Helvetica_AX'}="Helvetica-Ogonki";
    $remappings{'Helvetica-Bold_AX'}="Helvetica-Bold-Ogonki";
    $remappings{'Helvetica-Oblique_AX'}="Helvetica-Oblique-Ogonki";
    $remappings{'Helvetica-BoldOblique_AX'}="Helvetica-BoldOblique-Ogonki";
  }
}

sub adobeCourierRemappings {
  $remappings{'Courier'}="Courier-Ogonki";
  $remappings{'Courier-Bold'}="Courier-Bold-Ogonki";
  $remappings{'Courier-Oblique'}="Courier-Oblique-Ogonki";
  $remappings{'Courier-BoldOblique'}="Courier-BoldOblique-Ogonki";
  if($doApplixWare) {
    $remappings{'Courier_AX'}="Courier-Ogonki";
    $remappings{'Courier-Bold_AX'}="Courier-Bold-Ogonki";
    $remappings{'Courier-Oblique_AX'}="Courier-Oblique-Ogonki";
    $remappings{'Courier-BoldOblique_AX'}="Courier-BoldOblique-Ogonki";
  }
}

sub courierFonts {
  while(<$IBMFONTS>) {
    $downloadFonts[$#downloadFonts+1]=$_;
  }
}

sub timesFonts {
  $compositeProcset=TRUE;
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/ptmr-o.ps";
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/ptmri-o.ps";
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/ptmb-o.ps";
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/ptmbi-o.ps";
}

sub adobeCourierFonts {
  $compositeProcset=TRUE;
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/pcrr-o.ps";
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/pcrro-o.ps";
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/pcrb-o.ps";
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/pcrbo-o.ps";
}

sub helveticaFonts {
  $compositeProcset=TRUE;
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/phvr-o.ps";
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/phvro-o.ps";
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/phvb-o.ps";
  $downloadFonts[$#downloadFonts+1]="$LIBDIR/phvbo-o.ps";
}

sub procset {
  local($ps)=@_;
  open(PROCSET,$ps);
  if($_=<PROCSET>) {
    print;
  } else {
    die "File $ps not found; stopped";
  }
  while(<PROCSET>) {
    print;
  }
}

sub downloadFont {
  local($ps)=@_;
#  print("%%BeginResource: font $ps\n"); # this is not DSC conforming
  open(PROCSET,$ps);
  if($_=<PROCSET>) {
    print;
  } else {
    die "File $ps not found; stopped";
  }
  while(<PROCSET>) {
    print;
  }
  print("%%EndResource\n");
}

sub remap {
  local($from,$to,$newencoding)=@_;
  print <<"ALAMAKOTA";
/$to findfont
dup length 1 add dict begin
{1 index /FID ne {def} {pop pop} ifelse} forall
ALAMAKOTA
  if($newencoding) {
    print "/Encoding $newencoding def\n";
  }
  print <<"ALAMAKOTA";
currentdict end
/$from exch definefont pop
ALAMAKOTA
}

sub eurifyFont {
  local($name)=@_;
  print "/$name /$name eurifyFont\n";
}

sub usage {
  local($oldfh)=select(STDERR);
  print <<"ALAMAKOTA";
$PROGNAME $VERSION
$PROGNAME -p<procset> -e<encoding> -rOld=New 
  -a -c -h -t -A -C -H -T -AT -CT -ATH -CTH -E
  -N -M -mp -SO -AX -F -RS 
  -- file ...
ALAMAKOTA
  select($oldfh);
}


while(defined($_ = $ARGV[0]) && /^-/) {
  shift;
  if(/^--$/) {last;}
  elsif (/^-p$/) { $procsets[$#procsets+1]=$ARGV[0]; shift; }
  elsif (/^-p(.*)/) { $procsets[$#procsets+1]=$1; }
  elsif (/^-e$/) { $encoding=$ARGV[0]; shift; }
  elsif (/^-e(.*)/) { $encoding=$1 ; }
  elsif (/^-r(.*)=(.*)/) { $remappings{$1}=$2; }
  elsif (/^-c$/) { &courierRemappings; }
  elsif (/^-C$/) { &courierRemappings; &courierFonts; }
  elsif (/^-a$/) { &adobeCourierRemappings; }
  elsif (/^-t$/) { &timesRemappings; }
  elsif (/^-h$/) { &helveticaRemappings ; }
  elsif (/^-T$/) { &timesRemappings; &timesFonts; }
  elsif (/^-A$/) { &adobeCourierRemappings; &adobeCourierFonts; }
  elsif (/^-H$/) { &helveticaRemappings; &helveticaFonts; }
  elsif (/^-CT$/){ &courierRemappings; &timesRemappings; 
                   &courierFonts; &timesFonts; }
  elsif (/^-AT$/){ &adobeCourierRemappings; &timesRemappings; 
                   &adobeCourierFonts; &timesFonts; }
  elsif (/^-CTH$/){ &courierRemappings; &timesRemappings; &helveticaRemappings;
                    &courierFonts; &timesFonts; &helveticaFonts; }
  elsif (/^-ATH$/){ &adobeCourierRemappings; &timesRemappings; 
                    &helveticaRemappings;
                    &adobeCourierFonts; &timesFonts; &helveticaFonts; }
  elsif(/^-E$/) { $compositeProcset=TRUE; $eurify=TRUE; }
  elsif (/^-RS$/) { $recodeStandardFonts=TRUE; }
  elsif (/^-N$/) { $doNetscape=TRUE; }
  elsif (/^-SO$/) { $doStarOffice=TRUE; }
  elsif (/^-AX$/) { $doApplixWare=TRUE; }
  elsif (/^-M$/) { $doMosaic=TRUE; }
  elsif (/^-mp$/) { $doMp=TRUE; }
  elsif (/^-F$/) { $doXfig=TRUE; }
  else { &usage ; die "\n"; }
}

if(!$encodings{$encoding}) {
  die "Unknown encoding $encoding";
}

$where=0;
while(<>) {
  if($where==0) {
    if($doNetscape && /^%%Title:/) {
      $_="%%Title: \n";
    }
    print;
    if(($doMosaic || $doMp) && /^%%EndComments/) {
      $_="%%BeginProlog\n";
      print;
    }
    if(/^%%BeginProlog/) {
      $where=1;
      &procset($encodings{$encoding});
      if($compositeProcset) {
        &procset("$LIBDIR/compose.ps");
        &procset("$LIBDIR/ogonki.enc");
      }
      for(@procsets) {
        &procset($_);
      }
      if($eurify) {
        for(@standardFont) {
          &eurifyFont($_);
        }
      }
      for(@downloadFonts) {
        &downloadFont($_);
      }
      while(($from,$to)=each %remappings) {
        &remap($from,$to);
      }
      if($recodeStandardFonts) {
        for(@standardFont) {
          &remap($_, $_, 
                 $encodingvecs{$encoding});
        }
      }
    }
  } elsif($where==1) {
      if(/^%%EndProlog/) {
        $where=2;
      } else {
        if ($doNetscape && m|/Encoding[ \t]+isolatin1encoding[ \t]*def|) {
          s/isolatin1encoding/$encodingvecs{$encoding}/;
        } elsif ($doMosaic && m|/Encoding[ \t]+ISOLatin1Encoding[ \t]*D|) {
          s/ISOLatin1Encoding/$encodingvecs{$encoding}/;
        } elsif ($doMp && m|/Encoding[ \t]+ISOLatin1Encoding[ \t]*def|) {
          s/ISOLatin1Encoding/$encodingvecs{$encoding}/;
        } elsif ($doStarOffice && m/ISOLatin1Encoding/) {
          s/ISOLatin1Encoding/$encodingvecs{$encoding}/;
        } elsif ($doXfig && 
                 m|/([^ \t]+)[ \t]+/([^ \t]+)[ \t]+isovec[ \t]+ReEncode|) {
          &remap($2,$1,$encodingvecs{$encoding});
          next;
        }       
      }
      print;
  } elsif($where==2) {
    print;
  }
}

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

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