1#! /usr/bin/perl 2use strict; 3 4my $USAGE = <<__EOF__; 5 usage: mkutable [-n] [-f#] type... [--] [<] UnicodeData.txt 6 -n = take non-matching types 7 -f = zero-based type field (default 2) 8__EOF__ 9 10use vars qw( $opt_f $opt_n ); 11use Getopt::Std; 12my $type_field = 2; 13 14exit (main() ? 0 : 1); 15 16sub main { 17 my $date = `date`; 18 chomp $date; 19 my $args = join ' ', @ARGV; 20 my $header = "/* Generated by \"$0 $args\" on $date */\n"; 21 22 die $USAGE if not getopts('f:n'); 23 $type_field = $opt_f if $opt_f; 24 my %types; 25 my $arg; 26 while ($arg = shift @ARGV) { 27 last if $arg eq '--'; 28 $types{$arg} = 1; 29 } 30 my %out = ( 'types' => \%types ); 31 32 print $header; 33 my $last_code = 0; 34 while (<>) { 35 chomp; 36 s/#.*//; 37 my @fields = split /;/; 38 next if not @fields; 39 my ($lo_code, $hi_code); 40 my $codes = $fields[0]; 41 if ($codes =~ /(\w+)\.\.(\w+)/) { 42 $lo_code = hex $1; 43 $hi_code = hex $2; 44 } else { 45 $lo_code = $hi_code = hex $fields[0]; 46 } 47 my $type = $fields[$type_field]; 48 $type =~ s/\s//g; 49 for ($last_code = $lo_code; $last_code <= $hi_code; ++$last_code) { 50 output(\%out, $last_code, $type); 51 } 52 } 53 output(\%out, $last_code); 54 return 1; 55} 56 57sub output { 58 my ($out, $code, $type) = @_; 59 my $type_ok = ($type and ${${$out}{types}}{$type}); 60 $type_ok = not $type_ok if $opt_n; 61 my $prev_code = $$out{prev_code}; 62 63 if (not $type_ok) { 64 end_run($out, $prev_code); 65 } elsif (not $$out{in_run} or $type ne $$out{run_type} or $code != $prev_code+1) { 66 end_run($out, $prev_code); 67 start_run($out, $code, $type); 68 } 69 $$out{prev_code} = $code; 70} 71 72sub start_run { 73 my ($out, $code, $type) = @_; 74 $$out{start_code} = $code; 75 $$out{prev_code} = $code; 76 $$out{run_type} = $type; 77 $$out{in_run} = 1; 78} 79 80sub end_run { 81 my ($out, $code) = @_; 82 return if not $$out{in_run}; 83 printf "\t{ 0x%04x, 0x%04x }, /* %s */\n", $$out{start_code}, $code, $$out{run_type}; 84 $$out{in_run} = 0; 85} 86