#
# Perl subroutines to support the AFM to TFM font conversion
# scripts using fontinst
#
# Sebastian Rahtz, January 1997
#
# 1.0 January 1997
# 1.1 1997/02/09
# 1.2 1997/02/13
#-----------------------------------------------------------------
sub Setup {
my ($JOB) = @_;
#
# get the date right
#
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) =
						localtime(time);
$year = $year + 1900;
$mon = $mon +1 ;
if ($mon < 10) { $mon= "0" . $mon; } 
#
# find the root of the TDS tree (I am assuming you use tetex/web2c 7, ok?)
#
if ($opt_texmf eq "")
 {
  if ($opt_tetex) 
  {  open(SH,"kpsexpand '\$TEXMF' |") 
    || die "cannot run kpsexpand"; }
  else
   { open(SH,"kpsewhich -separator=\" \" -expand-path '\$TEXMFMAIN' |") 
    || die "cannot run kpsewhich"; }
 $opt_texmf=<SH>;
 close(SH); 
 chop($opt_texmf);
 $opt_texmf =~ s/ .*//;
}
if ($opt_tetex) 
   {  $KPSETFM="tfm" ; 
      $KPSEAFM="tex";
} 
else 
   { $KPSETFM="";
     $KPSEAFM="";
}
print "TEXMF is $opt_texmf\n" ;
$Inidir = getcwd();
$ENV{TEXINPUTS}="$Inidir/finst:$opt_texmf/fonts/afm//:";
$ENV{TFMFONTS}=".:";
if ($opt_outdir eq "") { $opt_outdir=$Inidir; }
&readfontnames;
$_=$JOB;
($sname,$fname,$famextra) = /(.)(..)(.*)/;
$Famcode=$sname . $fname;
$Foundry=$Foundries{$sname};
$Family=$Typefaces{$fname};
$ShortFamily=$Shortnames{$fname};
system("rm -f $Foundry-$ShortFamily");
$Outdir="$opt_outdir/$ShortFamily";
mkdir("$opt_outdir",0777);
mkdir("$opt_outdir/$ShortFamily",0777);
mkdir("$Outdir/dvips",0777);
mkdir("$Outdir/tfm",0777);
mkdir("$Outdir/vf",0777);
mkdir("$Outdir/tex",0777);
print "work on $Famcode$opt_expert ($famextra) / $ShortFamily / $Family\n"  if $opt_verbose;
#
# convert relative path to absolute, since we are operating from /tmp
#
chdir("$Outdir");
$Outdir = getcwd();
print "results to $Outdir\n";
mkdir("/tmp/Fam_$$",0777);
chdir("/tmp/Fam_$$");
}

#-----------------------------------------------------------------
sub buildfilelist {
    opendir(DIR,'.') 
    || die ("ERROR: cannot open directory");
    @filenames =grep(!/^\.\.?$/,readdir(DIR));
    closedir(DIR);
}
#-----------------------------------------------------------------
sub readfontnames
{
my $colA,$colB,$ColC,$ColD;
open(INF,"$opt_texmf/fontname/supplier.map") 
    || die "cannot open $opt_texmf/fontname/supplier.map";
 while (<INF>){  
    if (!/^@/) { 
      ($ColA,$ColB,$ColC)=split;
      $Foundries{$ColA} =$ColB; 
       }
    }
close(INF);
open(INF,"$opt_texmf/fontname/typeface.map") 
    || die "cannot open $opt_texmf/fontname/supplier.map";
 while (<INF>){  
    if (!/^@/) { 
      ($ColA,$ColB,$ColC,$ColD)=split;
      $Typefaces{$ColA} =$ColC; 
      $Shortnames{$ColA} =$ColB; 
       }
    }
close(INF);
}

#-----------------------------------------------------------------
sub readAFMfile {
     my ($AFMfile) = @_;
     my $FontName;
     open(AFM,$AFMfile);
     while (<AFM>) {
        if (/^FontName /) 
            { ($FontName) = /^FontName ([A-z0-9\-]*)/ ; return $FontName; }
      }
     close(AFM);
     return "";
}
#-----------------------------------------------------------------
sub installDvips {
if ($opt_tetex) 
 { $TeXBaseEncoding=`kpsewhich dvips_config 8r.enc 2> /dev/null`; }
else
 { $TeXBaseEncoding=`kpsewhich -format=34 8r.enc 2> /dev/null`; }
chop $TeXBaseEncoding;
open(MAP,">>$Outdir/dvips/$Famcode.map");
# 8r names
print "** Making map entries for 8r *.pl files\n";
for (grep(/.*8r.*\.pl/,@filenames)) { 
   s/\.pl//;
   $Basefile=$_;
   s/8r/8a/;
   $Rawfile=$_;
   $AFMfile=`kpsewhich $KPSEAFM $_.afm 2> /dev/null`;
   chop $AFMfile ;
   if ($AFMfile ne "")
   {
    $FontName=&readAFMfile($AFMfile);
    $FullNames{$Basefile}=$FontName;
    print MAP "$Basefile $FontName \"TeXBase1Encoding ReEncodeFont \" <8r.enc ";
    if ($opt_download) { print MAP "<$Rawfile.pfb"; }
    print MAP "\n";
    &make_tfm($Basefile,$AFMfile,"-e$TeXBaseEncoding");
    }
}
# 8x names
print "** Making map entries for 8x *.pl files\n" if $opt_verbose;
for (grep(/.*8x.*\.pl/,@filenames)) { 
   s/\.pl//;
   $Basefile=$_;
   $AFMfile=`kpsewhich $KPSEAFM $_.afm 2> /dev/null`;
   chop $AFMfile ;
   if ($AFMfile ne "")
   {
    $FontName=&readAFMfile($AFMfile);
    $FullNames{$Basefile}=$FontName;
    print MAP "$Basefile $FontName ";
    if ($opt_download) { print MAP "<$Basefile.pfb"; }
    print MAP "\n";
    &make_tfm($Basefile,$AFMfile,"");
    }
 }
print "** Making map entries for faked fonts\n" if $opt_verbose;
open LOG,"grep \"^Faking \" *.log| " 
    || die "cannot open grep for Faking";
while (<LOG>) {
 ($Style,$Fake,$Real)=/Faking (.*) font (.*) from (.*)/;
 $_=$Real;
 ($Up,$Enc,$Suf) = /(.*)(8.)(.*)/;
 $Basefile="$Up$Enc$Suf";
 $Enc =~ s/8r/8a/;
 $Rawfile="$Up$Enc$Suf";
 $AFMfile=`kpsewhich $KPSEAFM $Rawfile.afm 2> /dev/null`;
 chop $AFMfile ;
 $csargs="";
 if ($AFMfile ne "")
   {
   $FontName=&readAFMfile($AFMfile);
   print MAP "$Fake $FontName \"";
   if ($Style eq "narrow") {    
               print MAP " $opt_narrow ExtendFont " ;
	       $csargs=" -E$opt_narrow "; 
	       }
   elsif ($Style eq "oblique")  {    
                print MAP " $opt_slant SlantFont " ; 
	        $csargs=" -S$opt_slant "; 
	       }
   if ($Enc ne "8x") { 
        print MAP "TeXBase1Encoding ReEncodeFont \" <8r.enc"; 
	$csargs .= "-e$TeXBaseEncoding ";
	}
   else { print MAP "\"";}
   if ($opt_download) { print MAP " <$Rawfile.pfb " ; }
   print MAP "\n";
   &make_tfm($Fake,$AFMfile,$csargs);
  }
}
close LOG;
close MAP;
open CONFIG,">>$Outdir/dvips/config.$Famcode";
print CONFIG  "p +$Famcode.map\n" ;
close CONFIG;
}

#-----------------------------------------------------------------

sub installMetrics {
print "** Making virtual fonts with vptovf\n" if $opt_verbose;
for (grep(/.*\.vpl/,@filenames)) { 
    s/.vpl//;
    my $Basename=$_;
    processVPL($Basename);
 }
 &buildfilelist;
print "** Installing TFM files in $Outdir/tfm\n" if $opt_verbose;
 for (grep(/.*\.tfm/,@filenames)) { 
 print "Installing $_ \n" if $opt_verbose;
 if (! -r "$Outdir/tfm/$_") { system("mv $_ $Outdir/tfm") ;  }
  }
print "** Installing VF files in $Outdir/vf\n" if $opt_verbose;
 for (grep(/.*\.vf/,@filenames)) {
  print "Installing $_ \n" if $opt_verbose;
  if (! -r "$Outdir/vf/$_") { system("mv $_ $Outdir/vf") ; }
 }
}

#-----------------------------------------------------------------
sub make_tfm {
# Add CHECKSUM in the same way as AFM2TFM and PS2PK do
# This is originally by Piet Tutelaers <rcpt@urc.tue.nl>
   local($texname,$afmfile,$csargs) = @_;
   local $cs = 0;
   if (-r "$texname.tfm") { 
          chop($cs = `cs -o "$texname.tfm"`);
          return $cs; 
    }
   chop($cs = `cs -n -o $csargs $afmfile`);
   print "make tfm $texname, $afmfile, $csargs\n" if $opt_debug;
   die "[addchecksum] cs: exit code ", ($? >>8) & 255, "\n" if $cs == 0 && $?;

   die "[addchecksum] Wrong checksum for $texname\n" if "$cs" eq "";
   print "$texname.pl: cs -n -o $csargs $afmfile -> $cs\n" if $opt_verbose;
   die "[addchecksum] Can not open $texname.pl\n" unless open(PL, "<$texname.pl");
	 $csadded = 0;
   open(TMPPL, ">tmp.pl");
   print TMPPL "(COMMENT new CHECKSUM added)\n";
   while (<PL>) {
      if (/CHECKSUM/) {
         print TMPPL "(CHECKSUM O $cs)\n";
	 $csadded = 1;
	 next;
      }
      if ($csadded == 0 && /FONTDIMEN/) {
         print TMPPL "(CHECKSUM O $cs)\n";
	 $csadded = 1;
      }
      print TMPPL;
   }
   close(PL); close(TMPPL);
   unlink("$texname.pl");
   rename("tmp.pl", "$texname.pl");
   print "pltotf $texname.pl $texname.tfm\n" if $opt_debug;
   system("pltotf $texname.pl $texname.tfm");
   die "[addchecksum] pltotf: exit code ", ($? >>8) & 255, "\n" if $?;
   return $cs;
}

#-----------------------------------------------------------------
sub processVPL { 
# This is originally by Piet Tutelaers <rcpt@urc.tue.nl>
   local($font) = @_;
   print "Processing $font.vpl\n" if $opt_verbose;
   open(VPL,"$font.vpl") 
    || die "cannot open VPL $font.vpl";
   open(TMPVPL, ">tmp.vpl");
   print TMPVPL "(COMMENT new FONTCHECKSUMs added)\n";
   while (<VPL>) {
      $vpl = $_;
      next if (/FONTCHECKSUM/);
      if (/FONTNAME/) {
         $offset = index($vpl, "FONTNAME");
         $offset = index($vpl, ")", $offset);
         die "[addchecksum] Expected a closing brace after FONTNAME in line:",
             "\n$vpl" if $offset == -1;
         ($fontname) =  ($vpl =~ /FONTNAME\s+(\w+)/);
         $cs = 0;
	 if (-r "$fontname.tfm")
           {
            chop($cs = `cs -o "$fontname.tfm"`);
	    print "Read $cs from $fontname.tfm\n" if $opt_verbose;
	    }
         elsif (-r "$fontname.pl") {
            $_=$fontname;
            s/8r/8a/;
            $AFMfile=`kpsewhich $KPSEAFM $_.afm 2> /dev/null`;
            chop($AFMfile);
            if ($AFMfile eq "")
	       { die "No AFM file found for font $_\n"; }
            else
	    {
              $cs= &make_tfm($fontname,$AFMfile,"");
  	      print "Generated $cs from $fontname.pl\n" if $opt_verbose;
	      die "[addchecksum] $fontname: invalid checksum" unless $cs != 0;
	      }
             }
         else {
# see it exists on the system
	    $TFMfile=`kpsewhich $KPSETFM $fontname.tfm 2> /dev/null`;
	    chop($TFMfile);
            if ($TFMfile ne "") {
              chop($cs = `cs -o "$TFMfile"`);
	      print "Read $cs from $TFMfile\n" if $opt_verbose;
             }
	    else
             { die "[addchecksum] No font for $fontname\n"; }
         }
         die "[addchecksum] cs: exit code ", ($? >>8) & 255, "\n" if $cs == 0 && $?;
         substr($vpl, $offset+1, 0) = " (FONTCHECKSUM O $cs) ";
      }
      print TMPVPL $vpl;
   }
   close(VPL); 
   close(TMPVPL);
   unlink("$font.vpl");
   rename("tmp.vpl", "$font.vpl");
   system("vptovf $font.vpl $font.vf $font.tfm");
   die "[addchecksum] vptovf: exit code ", ($? >>8) & 255, "\n" if $?;
}

#-----------------------------------------------------------------

sub runTeX {
 open(TEX,">Fam_$$.tex") 
    || die ("Cannot open Fam_$$.tex");
 if ($opt_verbose)
   { print TEX "\\nonstopmode\n" ; } 
 else
   { print TEX "\\batchmode\n" ; } 
 print TEX "\\input fontinst.sty\n";
 print TEX "\\input textcomp\n";
 print TEX "\\def\\SlantAmount{",$opt_slant * 1000,"}\n";
 if ($opt_narrow) { print TEX "\\fakenarrow{$opt_narrow}\n" ; }
 print TEX "\\latinfamily{$Famcode$opt_expert$famextra}{$ExtraFDcode}\n";
 print TEX "\\textcompfamily{$Famcode$opt_expert$famextra}{}\n";
 print TEX "\\end\n";
 close TEX;
 system("initex Fam_$$");
}

#-----------------------------------------------------------------
sub installTeX {
local $encoding;
for (grep(/.*\.fd/,@filenames)) { 
if (! -r "$Outdir/tex/$_") { 
 if (/^ot1/) { $encoding = "ot1"; } else { $encoding="other";}
 open NEWFD,">$Outdir/tex/$_";
 open OLDFD,"$_";
 while (<OLDFD>) {
 if ($opt_lucida)
 {
s/DeclareFontShape/DeclareLucidaFontShape/;
s/^\\DeclareFontFam/\\\@ifundefined{DeclareLucidaFontShape}{\%\n\\def\\DeclareLucidaFontShape#1#2#3#4#5#6{\%\n\\DeclareFontShape{#1}{#2}{#3}{#4}{<->#5}{#6}}}{}\n\\DeclareFontFam/;
s/^   <-> //;
if (/sub /) { s/Lucida//; }
 }
 if (/endinput/ && $encoding eq "ot1" ) { 
    print NEWFD "\\DeclareFontShape{OT1}{$Famcode$famextra}{m}{ui}{<->ssub * $Famcode$famextra/m/it}{}\n"; 
    print NEWFD "\\DeclareFontShape{OT1}{$Famcode$famextra}{b}{ui}{<->ssub * $Famcode$famextra/b/it}{}\n"; 
    print NEWFD "\\endinput\n";
        }
    else { print NEWFD ; }
}
    close OLDFD;
    close NEWFD;
  }
}
# now we have to fix the silly OML and OMS files. bleeargh.
#
open(CAT,">$Outdir/tex/oms$Famcode$famextra$opt_expert.fd")  
    || die ("cannot open $Outdir/tex/oms$Famcode$famextra$opt_expert.fd");
print CAT <<EOFCAT;
\\ProvidesFile{oms$Famcode$famextra$opt_expert.fd}
\\DeclareFontFamily{OMS}{$Famcode$famextra}{\\skewchar\\font48}
\\DeclareFontShape{OMS}{$Famcode$famextra}{m}{n}
   {<-> ssub * cmsy/m/n}{}
\\DeclareFontShape{OMS}{$Famcode$famextra}{m}{it}
   {<-> ssub * cmsy/m/n}{}
\\DeclareFontShape{OMS}{$Famcode$famextra}{m}{sl}
   {<-> ssub * cmsy/m/n}{}
\\DeclareFontShape{OMS}{$Famcode$famextra}{m}{sc}
   {<-> ssub * cmsy/m/n}{}
\\DeclareFontShape{OMS}{$Famcode$famextra}{b}{n}
   {<-> ssub * cmsy/b/n}{}
\\DeclareFontShape{OMS}{$Famcode$famextra}{b}{it}
   {<-> ssub * cmsy/b/n}{}
\\DeclareFontShape{OMS}{$Famcode$famextra}{b}{sl}
   {<-> ssub * cmsy/b/n}{}
\\DeclareFontShape{OMS}{$Famcode$famextra}{b}{sc}
   {<-> ssub * cmsy/b/n}{}
\\endinput
EOFCAT
close CAT;
open (CAT,">$Outdir/tex/oml$Famcode$famextra$opt_expert.fd") 
    || die ("cannot open $Outdir/tex/oml$Famcode$famextra$opt_expert.fd");
print CAT <<EOFCAT;
\\ProvidesFile{oml$Famcode$famextra$opt_expert.fd}
\\DeclareFontFamily{OML}{$Famcode$famextra}{\\skewchar\\font127}
\\DeclareFontShape{OML}{$Famcode$famextra}{m}{n}
   {<-> ssub * cmm/m/it}{}
\\DeclareFontShape{OML}{$Famcode$famextra}{m}{it}
   {<-> ssub * cmm/m/it}{}
\\DeclareFontShape{OML}{$Famcode$famextra}{m}{sl}
   {<-> ssub * cmm/m/it}{}
\\DeclareFontShape{OML}{$Famcode$famextra}{m}{sc}
   {<-> ssub * cmm/m/it}{}
\\DeclareFontShape{OML}{$Famcode$famextra}{b}{n}
   {<-> ssub * cmm/b/it}{}
\\DeclareFontShape{OML}{$Famcode$famextra}{b}{it}
   {<-> ssub * cmm/b/it}{}
\\DeclareFontShape{OML}{$Famcode$famextra}{b}{sl}
   {<-> ssub * cmm/b/it}{}
\\DeclareFontShape{OML}{$Famcode$famextra}{b}{sc}
   {<-> ssub * cmm/b/it}{}
\\endinput
EOFCAT
open(README,">$Outdir/README");
print "Installing README in $Outdir\n"  if $opt_verbose;
print README <<EOFCAT;
This set of metric files for the $Family font family was
created on $year/$mon/$mday by Sebastian Rahtz
using Alan Jeffrey's fontinst TeX macros.
It consists of:
 + tfm files for use by TeX in old TeX encoding
     and new Cork TeX encoding 
 + vf (virtual font) files for dvi drivers 
 + tfm files for the raw fonts (TeXBase1 encoded) to use with the vf files
 + .fd (font description) files for use with LaTeX
 + a file $Famcode$famextra.map which lists the raw font names and their
    full PostScript names. This can be added to eg the psfonts.map file
    of dvips to ensure that the driver recognizes the names as those
    of PostScript fonts
 + a dvips config file config.$Famcode$famextra which can be used to tell dvips
   about the new fonts if you do not want to change the default psfonts.map
   (usage: dvips -P$Famcode$famextra to tell dvips about the $Family fonts)
EOFCAT
#
if ($opt_nosty) { close (README); return 0; }
print README <<EOFCAT;
 + a simple LaTeX package $ShortFamily.sty to use the new font
   family as appropriate for its type (roman, sans or typewriter).

EOFCAT
close(README);
open(CAT,">$Outdir/tex/$opt_expert$ShortFamily.sty");
print CAT <<EOFCAT;
\\def\\fileversion{2}
\\def\\filedate{$year/$mon/$mday}
\\ProvidesPackage{$opt_expert$ShortFamily}[\\filedate\\space\\fileversion
\\space PSNFSS LaTeX package loading $Family]
EOFCAT
print CAT "\\renewcommand{",$Type,"default}{$Famcode$famextra$opt_expert}\n";
print CAT "\\endinput\n";
close(CAT);
}

#-----------------------------------------------------------------

sub remove_duplicates {
# read a file and remove duplicates lines
   local($filename) = @_;
   print "Reading $filename to remove duplicate lines\n" if $opt_verbose;
   local %Lines;
   open (TMP,$filename) 
     || die "Cannot read $filename to remove duplicates";
   while (<TMP>) {
      $Lines{$_} = 1;
    }
   close(TMP);
   open (TMP,">$filename") 
       || die "Cannot write $filename to remove duplicates";
   foreach $l (sort keys %Lines) {
       print TMP $l;
    }
   close(TMP);
   
}
#
# remove all files corresponding to a pattern
#
sub killfiles {
    local($killpatt) = @_;
    for (grep(/$killpatt/,@filenames)) { 
        print "NOTE: removing $_\n" if ($opt_debug);
        unlink $_ ; 
    }
    &buildfilelist;
}
1;