#############################################################
##
## This is the file newmtx.prl, part of the MathInst package
## (version 1.0, August, 1998) for math font 
## generation.  (Author: Alan Hoenig, ajhjj@cunyvm.cuny.edu)
##
#############################################################

# perl script to read to mtx files and relate bad and good names.

# perl mtex.prl MTEX

die "Wrong number of params, boss..." if $#ARGV != 0;

$File = $ARGV[0];
$file = $File;
$file =~ tr/A-Z/a-z/;

$goodfile = "${File}good.mtx";
$baddfile = "${File}bad.mtx";
open (GOOD, $goodfile)  || die "Can't open good file $goodfile...";
open (BAD,  $baddfile)  || die "Can't open bad file $baddfile...";

$newfile = "new${file}.mtx";
open (OUT, ">$newfile");

sub min{
 local($i);
 local($Min_) = $_[0];
 foreach $i (1 .. $#_) {
   $Min_ = $_[$i] if $_[$i] < $Min_;
 }
 $Min_;
}

## &readmtxfile(*good);
sub readmtxfile{
  local(*foo) = @_;
  while ($_ = <$fh>) {
    last if /setrawglyph/;
  }
  while ($_ = <$fh>) {
    last unless /setrawglyph/;
    $_ =~ /^\\setrawglyph{([A-Za-z]+)}{$ARGV[0][a-z]*}{10[\.0]*pt}{([-0-9]+)}/;
    $foo[$2] = $1;
  }
}

$fh = "GOOD";
&readmtxfile(*good);
$fh = "BAD";
&readmtxfile(*bad);

$diffs = 0;
$m = &min($#good, $#bad);
foreach $i (0 .. $m) {
  next if $bad[$i] eq $good[$i];
  $A = "\\renameas{$bad[$i]}{$good[$i]}";
  $A .= ' ' x (50-length($A))."% glyph $i\n";
  $diff[$j] = $A; $j++; $diffs = 1;
}

if ($diffs == 1) {
  print OUT "\\relax\n\n\\metrics\n\n";
  print OUT "\\setcommand\\renameas\#1\#2{\n";
  print OUT "  \\ifisglyph{\#1}\\then\n";
  print OUT "	 \\setglyph{\#2}\n";
  print OUT "	     \\glyph{\#1}{1000}\n";
  print OUT "	 \\endsetglyph\n";
  print OUT "  \\fi\n";
  print OUT "}\n\n";
  foreach $i (0 .. $#diff) {
    print OUT $diff[$i];
  }
  print OUT "\n\\endmetrics\n";
}

close OUT;