git.distorted.org.uk Git - u/mdw/putty/blob - charset/sbcsgen.pl

   1 #!/usr/bin/env perl -w
   2
   3 # This script generates sbcsdat.c (the data for all the SBCSes) from its
   4 # source form sbcs.dat.
   5
   6 $infile = "sbcs.dat";
   7 $outfile = "sbcsdat.c";
   8
   9 open FOO, $infile;
  10 open BAR, ">$outfile";
  11 select BAR;
  12
  13 print "/*\n";
  14 print " * sbcsdat.c - data definitions for single-byte character sets.\n";
  15 print " *\n";
  16 print " * Generated by sbcsgen.pl from sbcs.dat.\n";
  17 print " * You should edit those files rather than editing this one.\n";
  18 print " */\n";
  19 print "\n";
  20 print "#ifndef ENUM_CHARSETS\n";
  21 print "\n";
  22 print "#include \"charset.h\"\n";
  23 print "#include \"internal.h\"\n";
  24 print "\n";
  25
  26 my $charsetname = undef;
  27 my @vals = ();
  28
  29 my @charsetnames = ();
  30
  31 while (<FOO>) {
  32     chomp;
  33     if (/^charset (.*)$/) {
  34         $charsetname = $1;
  35         @vals = ();
  36     } elsif (/^[0-9a-fA-FX]/) {
  37         push @vals, map { $_ eq "XXXX" ? -1 : hex $_ } split / +/, $_;
  38         if (scalar @vals > 256) {
  39             die "$infile:$.: charset $charsetname has more than 256 values\n";
  40         } elsif (scalar @vals == 256) {
  41             &outcharset($charsetname, @vals);
  42             push @charsetnames, $charsetname;
  43             $charsetname = undef;
  44             @vals = ();
  45         }
  46     }
  47 }
  48
  49 print "#else /* ENUM_CHARSETS */\n";
  50 print "\n";
  51
  52 foreach $i (@charsetnames) {
  53     print "ENUM_CHARSET($i)\n";
  54 }
  55
  56 print "\n";
  57 print "#endif /* ENUM_CHARSETS */\n";
  58
  59 sub outcharset($@) {
  60     my ($name, @vals) = @_;
  61     my ($prefix, $i, @sorted);
  62
  63     print "static const sbcs_data data_$name = {\n";
  64     print "    {\n";
  65     $prefix = "    ";
  66     @sorted = ();
  67     for ($i = 0; $i < 256; $i++) {
  68         if ($vals[$i] < 0) {
  69             printf "%sERROR ", $prefix;
  70         } else {
  71             printf "%s0x%04x", $prefix, $vals[$i];
  72             push @sorted, [$i, $vals[$i]];
  73         }
  74         if ($i % 8 == 7) {
  75             $prefix = ",\n    ";
  76         } else {
  77             $prefix = ", ";
  78         }
  79     }
  80     print "\n    },\n    {\n";
  81     @sorted = sort { $a->[1] <=> $b->[1] } @sorted;
  82     $prefix = "    ";
  83     for ($i = 0; $i < scalar @sorted; $i++) {
  84         printf "%s0x%02x", $prefix, $sorted[$i]->[0];
  85         if ($i % 8 == 7) {
  86             $prefix = ",\n    ";
  87         } else {
  88             $prefix = ", ";
  89         }
  90     }
  91     printf "\n    },\n    %d\n", scalar @sorted;
  92     print "};\n";
  93     print "const charset_spec charset_$name = {\n" .
  94           "    $name, read_sbcs, write_sbcs, &data_$name\n};\n\n";
  95 }