| 1 | #!/usr/bin/perl -w |
| 2 | use strict; |
| 3 | use POSIX; |
| 4 | use IO::File; |
| 5 | |
| 6 | our @rulespath=('.'); |
| 7 | |
| 8 | sub loadrules ($) { |
| 9 | my ($key) = @_; |
| 10 | our %cache; |
| 11 | my $fc=$cache{$key}; |
| 12 | return $fc if $fc; |
| 13 | foreach my $path (@rulespath) { |
| 14 | my $script="$path/$key.rules"; |
| 15 | $!=0; $@=''; my $f = do $script; |
| 16 | if (defined $f) { |
| 17 | $cache{$key}=$f; |
| 18 | return $f; |
| 19 | } |
| 20 | die "$! $? $script" unless $! == &ENOENT; |
| 21 | } |
| 22 | return $cache{$key}=undef; |
| 23 | } |
| 24 | |
| 25 | sub processbdf ($$) { |
| 26 | my ($inbdf,$outbdf) = @_; |
| 27 | my $state='idle'; |
| 28 | my ($donefoundry,$donefont); |
| 29 | my ($w,$h,$xo,$yo,$y,$bitmap,$glyph); |
| 30 | while (<$inbdf>) { |
| 31 | if ($state eq 'bitmap' && $y==$h) { |
| 32 | local ($_) = uc $glyph; |
| 33 | my $key= sprintf "%d,%d,%d,%d", $w,$h,$xo,$yo; |
| 34 | my $rules= loadrules($key); |
| 35 | return 0 if !$rules; |
| 36 | s/\;$//; |
| 37 | $rules->(); |
| 38 | print $outbdf $_,"\n" or die $! |
| 39 | foreach split /\;/, $_; # /; |
| 40 | $state='idle'; |
| 41 | } |
| 42 | if ($state eq 'bitmap') { |
| 43 | m/^([0-9a-fA-F]+)\s+$/ or die $y; |
| 44 | length($1) == (($w+7 >> 3) << 1) or die "$1 $w"; |
| 45 | $glyph .= "$1;"; |
| 46 | $y++; |
| 47 | next; |
| 48 | } |
| 49 | if ($state eq 'idle' && m/^FOUNDRY\s+/) { |
| 50 | return 0 unless m/^FOUNDRY\s+\"[Mm]isc\"\s+/; |
| 51 | s/misc/Trad/i; |
| 52 | $donefoundry=1; |
| 53 | } |
| 54 | if ($state eq 'idle' && m/^FONT\s+/) { |
| 55 | return 0 unless s/^(FONT\s+)\-[Mm]isc\-/$1-Trad-/; |
| 56 | $donefont=1; |
| 57 | } |
| 58 | if ($state eq 'idle' && m/^STARTCHAR\s/) { |
| 59 | die unless $donefoundry; |
| 60 | die unless $donefont; |
| 61 | $state='startchar'; |
| 62 | $w=undef; |
| 63 | } |
| 64 | if ($state eq 'startchar') { |
| 65 | if (m/^BBX\s+(\+?\d+)\s+(\+?\d+)\s+([-+]?\d+)\s+([-+]?\d+)\s+$/) { |
| 66 | ($w,$h,$xo,$yo) = ($1,$2,$3,$4); |
| 67 | } |
| 68 | if (m/^BITMAP\s+$/) { |
| 69 | die unless defined $w; |
| 70 | $y=0; |
| 71 | $glyph=''; |
| 72 | $state='bitmap'; |
| 73 | } |
| 74 | } |
| 75 | print $outbdf $_ or die $!; |
| 76 | } |
| 77 | die $! if $inbdf->error; |
| 78 | die $! if $outbdf->error or !$outbdf->flush; |
| 79 | die unless $state eq 'idle'; |
| 80 | } |
| 81 | |
| 82 | processbdf((new IO::File '<&STDIN'), |
| 83 | (new IO::File '>&STDOUT')); |
| 84 | |