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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 $charsetname = undef; |
27 | my @vals = (); |
28 | |
29 | my @charsetnames = (); |
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30 | my @sortpriority = (); |
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31 | |
32 | while (<FOO>) { |
33 | chomp; |
34 | if (/^charset (.*)$/) { |
35 | $charsetname = $1; |
36 | @vals = (); |
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37 | @sortpriority = map { 0 } 0..255; |
38 | } elsif (/^sortpriority ([^-]*)-([^-]*) (.*)$/) { |
39 | for ($i = hex $1; $i <= hex $2; $i++) { |
40 | $sortpriority[$i] += $3; |
41 | } |
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42 | } elsif (/^[0-9a-fA-FX]/) { |
43 | push @vals, map { $_ eq "XXXX" ? -1 : hex $_ } split / +/, $_; |
44 | if (scalar @vals > 256) { |
45 | die "$infile:$.: charset $charsetname has more than 256 values\n"; |
46 | } elsif (scalar @vals == 256) { |
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47 | &outcharset($charsetname, \@vals, \@sortpriority); |
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48 | push @charsetnames, $charsetname; |
49 | $charsetname = undef; |
50 | @vals = (); |
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51 | @sortpriority = map { 0 } 0..255; |
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52 | } |
53 | } |
54 | } |
55 | |
56 | print "#else /* ENUM_CHARSETS */\n"; |
57 | print "\n"; |
58 | |
59 | foreach $i (@charsetnames) { |
60 | print "ENUM_CHARSET($i)\n"; |
61 | } |
62 | |
63 | print "\n"; |
64 | print "#endif /* ENUM_CHARSETS */\n"; |
65 | |
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66 | sub outcharset($$$) { |
67 | my ($name, $vals, $sortpriority) = @_; |
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68 | my ($prefix, $i, @sorted); |
69 | |
70 | print "static const sbcs_data data_$name = {\n"; |
71 | print " {\n"; |
72 | $prefix = " "; |
73 | @sorted = (); |
74 | for ($i = 0; $i < 256; $i++) { |
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75 | if ($vals->[$i] < 0) { |
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76 | printf "%sERROR ", $prefix; |
77 | } else { |
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78 | printf "%s0x%04x", $prefix, $vals->[$i]; |
79 | die "ooh? $i\n" unless defined $sortpriority->[$i]; |
80 | push @sorted, [$i, $vals->[$i], 0+$sortpriority->[$i]]; |
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81 | } |
82 | if ($i % 8 == 7) { |
83 | $prefix = ",\n "; |
84 | } else { |
85 | $prefix = ", "; |
86 | } |
87 | } |
88 | print "\n },\n {\n"; |
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89 | @sorted = sort { $a->[1] == $b->[1] ? |
90 | $b->[2] <=> $a->[2] : |
91 | $a->[1] <=> $b->[1] } @sorted; |
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92 | $prefix = " "; |
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93 | $uval = -1; |
94 | for ($i = $j = 0; $i < scalar @sorted; $i++) { |
95 | next if ($uval == $sorted[$i]->[1]); # low-priority alternative |
96 | $uval = $sorted[$i]->[1]; |
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97 | printf "%s0x%02x", $prefix, $sorted[$i]->[0]; |
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98 | if ($j % 8 == 7) { |
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99 | $prefix = ",\n "; |
100 | } else { |
101 | $prefix = ", "; |
102 | } |
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103 | $j++; |
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104 | } |
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105 | printf "\n },\n %d\n", $j; |
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106 | print "};\n"; |
107 | print "const charset_spec charset_$name = {\n" . |
108 | " $name, read_sbcs, write_sbcs, &data_$name\n};\n\n"; |
109 | } |