76 lines
1.8 KiB
Plaintext
76 lines
1.8 KiB
Plaintext
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#! /usr/bin/perl
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use strict;
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my $USAGE = <<__EOF__;
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usage: mkutable [-n] [-f#] type... [--] [<] UnicodeData.txt
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-n = take non-matching types
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-f = zero-based type field (default 2)
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__EOF__
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use vars qw( $opt_f $opt_n );
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use Getopt::Std;
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my $type_field = 2;
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exit (main() ? 1 : 0);
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sub main {
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my $date = `date`;
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chomp $date;
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my $args = join ' ', @ARGV;
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my $header = "/* Generated by \"$0 $args\" on $date */\n";
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die $USAGE if not getopts('f:n');
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$type_field = $opt_f if $opt_f;
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my %types;
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my $arg;
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while ($arg = shift @ARGV) {
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last if $arg eq '--';
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$types{$arg} = 1;
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}
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my %out = ( 'types' => \%types );
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my $last_code = 0;
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print $header;
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while (<>) {
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chomp;
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s/#.*//;
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my @fields = split /;/;
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next if not @fields;
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my $code = hex $fields[0];
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my $type = $fields[$type_field];
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$type =~ s/\s//g;
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while (++$last_code < $code) {
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output(\%out, $last_code, '?');
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}
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output(\%out, $code, $type);
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}
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output(\%out, $last_code+1, '?');
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}
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sub output {
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my ($out, $code, $type) = @_;
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my $match = ${${$out}{types}}{$type};
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my $type_change = (not $$out{start_type} or $type ne $$out{start_type});
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$match = not $match if $opt_n;
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if ($match and (not $$out{in_run} or $type_change)) {
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end_run($out, $code-1);
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start_run($out, $code, $type);
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} elsif (not $match and $$out{in_run}) {
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end_run($out, $code-1);
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}
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}
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sub start_run {
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my ($out, $code, $type) = @_;
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$$out{start_code} = $code;
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$$out{start_type} = $type;
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$$out{in_run} = 1;
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}
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sub end_run {
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my ($out, $code) = @_;
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return if not $$out{in_run};
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printf "\t{ 0x%04x, 0x%04x }, /* %s */\n", $$out{start_code}, $code, $$out{start_type};
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$$out{in_run} = 0;
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}
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