The Tor Browser: intl/uconv/tools/jamap.pl@b8a032363ba2 (annotated)

intl/uconv/tools/jamap.pl@b8a032363ba2 (annotated)

intl/uconv/tools/jamap.pl

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 #!/usr/local/bin/perl
 use strict;
 my @source_files;
 my @sjis_h;
 $sjis_h[0] = -1;
 @sjis_h[0x81..0x9f] = map { 0x2100 + $_ * 0x200 } (0 .. 30);
 @sjis_h[0xe0..0xef] = map { 0x5F00 + $_ * 0x200 } (0 .. 15);
 @sjis_h[0xf0..0xf9] = (-2) x 10;
 my @sjis_l;
 @sjis_l[0x40..0x7e] = (0x21..0x5f);
 @sjis_l[0x80..0xfc] = (0x60..0x7e, 0x121..0x17e);
 sub sjis_to_jis {
   my ($s) = @_;
   my $j;
   my $type;
   my $h = $sjis_h[($s>>8)&0xff];
   if ( $h > 0 ) { # jis0208
     my $l = $sjis_l[$s&0xff];
     if ( $l == 0 ) {
       $j = $s;
       $type = 'sjis2undef';
     } else {
       $j = $h + $l;
       if ( $j >= 0x3000 && $j < 0x7500 ) { # jis0208 kanji
         $type = 'jis0208';
       } elsif ( $j < 0x2900 ) { # jis0208
         $type = 'jis0208';
       } else {
         $type = 'jis0208undef';
       }
     }
   } elsif ( $h == -1 ) { # single byte
     $j = $s;
     if ( $s <= 0x7f ) { # jis0201 roman
       $type = 'jis0201';
     } elsif ( $s >= 0xa1 && $s <= 0xdf ) { # jis0201 kana
       $type = 'jis0201';
     } else { # sjis single byte undefined
       $type = 'sjis1undef';
     }
   } elsif ( $h == -2 ) { # private use
     $j = $s;
     $type = 'private';
   } else { # sjis undefined
     $j = $s;
     $type = 'sjis2undef';
   }
   return ($j, $type);
 }
 sub read_sjis_map {
   my ($filename, $s_col, $u_col) = @_;
   my %map;
   open MAP, $filename or die $!;
   while (<MAP>) {
     my @cols = split /\s+/;
     my ($s, $u) = @cols[$s_col, $u_col];
     $s =~ /^0x[0-9A-Fa-f]+$/ && $u =~ /^0x[0-9A-Fa-f]+$/ or next;
     $s = oct($s);
     $u = oct($u);
     my ($j, $type) = sjis_to_jis($s);
     push @{$map{$type}}, [$j, $s, $u];
   }
   close MAP or warn $!;
   push @source_files, $filename;
   return %map;
 }
 sub read_0212_map {
   my ($filename, $j_col, $u_col) = @_;
   my $map;
   open MAP, $filename or die $!;
   while (<MAP>) {
     my @cols = split /\s+/;
     my ($j, $u) = @cols[$j_col, $u_col];
     $j =~ /^0x[0-9A-Fa-f]+$/ && $u =~ /^0x[0-9A-Fa-f]+$/ or next;
     $j = oct($j);
     $u = oct($u);
     $u = 0xff5e if $u == 0x007e;
     push @$map, [$j, 0, $u];
   }
   close MAP or warn $!;
   push @source_files, $filename;
   return $map;
 }
 my %printed;
 sub write_fromu_map {
   my ($filename, $code, @maps) = @_;
   open MAP, ">$filename" or die $!;
   foreach my $map (@maps) {
     foreach my $pair (@$map) {
       my ($j, $s, $u) = @$pair;
       if ( $code eq 'sjis' ) {
         $j = $s;
       }
       if ( defined($printed{$u}) ) {
         if ( $printed{$u} ne $j ) {
           printf "conflict 0x%04x to 0x%04x, 0x%04x\n", $u, $printed{$u}, $j;
         }
       } else {
         if ( $j < 0x100 ) {
           printf MAP "0x%02X\t0x%04X\n", $j, $u;
         } else {
           printf MAP "0x%04X\t0x%04X\n", $j, $u;
         }
         $printed{$u} = $j;
       }
     }
   }
   close MAP or warn $!;
 }
 my @table;
 my %table;
 my $table_next_count = 0;
 sub get_94table_index {
   my ($map_table) = @_;
   my $key = join ',', map {int($map_table->[$_])} (0 .. 93);
   my $table_index = $table{$key};
   if ( !defined($table_index) ) {
     $table_index = $table_next_count;
     $table_next_count += 94;
     $table[$table_index] = $map_table;
     $table{$key} = $table_index;
   }
   return $table_index;
 }
 sub get_188table_index {
   my ($map_table) = @_;
   my $map_table1 = [ @{$map_table}[0 .. 93] ];
   my $map_table2 = [ @{$map_table}[94 .. 187] ];
   my $key = join ',', map {int($map_table->[$_])} (0 .. 187);
   my $key1 = join ',', map {int($map_table1->[$_])} (0 .. 93);
   my $key2 = join ',', map {int($map_table2->[$_])} (0 .. 93);
   my $table_index = $table{$key};
   if ( !defined($table_index) ) {
     $table_index = $table_next_count;
     $table_next_count += 188;
     $table[$table_index] = $map_table1;
     $table[$table_index + 94] = $map_table2;
     $table{$key} = $table_index;
     $table{$key1} = $table_index unless defined($table{$key1});
     $table{$key2} = $table_index + 94 unless defined($table{$key2});
   }
   return $table_index;
 }
 get_188table_index([]);
 sub print_sjis_table_index {
   my @maps = @_;
   my %map_table;
   foreach my $map (@maps) {
     foreach my $pair (@$map) {
       my ($j, $s, $u) = @$pair;
       my $row = $s >> 8;
       my $cell = $s&0xff;
       if ( $cell >= 0x40 && $cell <= 0x7e ) {
         $cell -= 0x40;
       } elsif ( $cell >= 0x80 && $cell <= 0xfc ) {
         $cell -= 0x41;
       } else {
         next;
       }
       if ( defined($map_table{$row}->[$cell]) && $map_table{$row}->[$cell] != $u ) {
          print "conflict!\n";
       }
       $map_table{$row}->[$cell] = $u;
     }
   }
   for ( my $i = 0x80; $i < 0x100; $i++ ) {
     if ( ($i & 0x7) == 0 ) {
       print MAP "\n ";
     }
     if ( $i >= 0xa1 && $i <= 0xdf ) {
       printf MAP " 0x%04X,", $i + 0xfec0;
     } elsif ( $i >= 0xf0 && $i <= 0xf9 ) {
       printf MAP " 0x%04X,", 0xe000 + ($i - 0xf0) * 188;
     } elsif ( $i == 0x80 ) {
       print MAP " 0xFFFD,";
     } elsif ( $i == 0xa0 ) {
       print MAP " 0xF8F0,";
     } elsif ( $i >= 0xfd ) {
       printf MAP " 0x%04X,", $i + (0xf8f1 - 0xfd);
     } else {
       my $table_index = get_188table_index($map_table{$i});
       printf MAP " %6d,", $table_index;
     }
   }
 }
 sub print_jis_table_index {
   my @maps = @_;
   my %map_table;
   foreach my $map (@maps) {
     foreach my $pair (@$map) {
       my ($j, $s, $u) = @$pair;
       my $row = $j >> 8;
       my $cell = ($j&0xff) - 0x21;
       if ( defined($map_table{$row}->[$cell]) && $map_table{$row}->[$cell] != $u ) {
          print "conflict!\n";
       }
       $map_table{$row}->[$cell] = $u;
     }
   }
   for ( my $i = 0; $i < 0x80; $i++ ) {
     if ( ($i & 0x7) == 0 ) {
       print MAP "\n ";
     }
     if ( $i >= 0x21 && $i <= 0x7e ) {
       my $table_index = get_94table_index($map_table{$i});
       printf MAP " %6d,", $table_index;
     } else {
       print MAP " 0xFFFD,";
     }
   }
 }
 sub print_table_index {
   my ($map_name, @maps) = @_;
   print MAP "static const uint16_t g${map_name}IndexShiftJis[] = {";
   print_sjis_table_index(@maps);
   print MAP "\n};\n";
   print MAP "static const uint16_t g${map_name}IndexJis0208[] = {";
   print_jis_table_index(@maps);
   print MAP "\n};\n";
   print MAP "static const uint16_t * const g${map_name}Index[] = {";
   print MAP "\n  g${map_name}IndexShiftJis, g${map_name}IndexJis0208";
   print MAP "\n};\n\n";
 }
 sub print_0212_table_index {
   my ($map_name, @maps) = @_;
   print MAP "static const uint16_t g${map_name}Index[] = {";
   print_jis_table_index(@maps);
   print MAP "\n};\n\n";
 }
 sub print_table {
   print MAP "static const uint16_t gJapaneseMap[] = {";
   for ( my $i = 0; $i < $table_next_count; $i += 94 ) {
     my $index = $i;
     print MAP "\n  /* index $index */\n         ";
     my $map_table = $table[$i];
     my $print_count = 1;
     for ( my $j = 0; $j < 94; $j++ ) {
       my $u = $map_table->[$j];
       if ( $u == 0 ) { $u = 0xfffd; }
       printf MAP " 0x%04X,", $u;
       if ( ++$print_count == 8 ) {
         print MAP "\n ";
         $print_count = 0;
       }
     }
   }
   print MAP "\n};\n";
 }
 my %cp932 = read_sjis_map('CP932.TXT', 0, 1);
 my %ibm = read_sjis_map('IBM943.TXT', 0, 1);
 my $jis0212 = read_0212_map('JIS0212.TXT', 0, 1);
 %printed = ();
 write_fromu_map('jis0201-uf-unify', 'jis',
   $cp932{jis0201},
   $ibm{jis0201}
 );
 write_fromu_map('jis0208-uf-unify', 'jis',
   $cp932{jis0208},
   $ibm{jis0208}
 );
 %printed = ();
 write_fromu_map('jis0208ext-uf-unify', 'jis',
   $cp932{jis0208undef},
   $ibm{jis0208undef}
 );
 %printed = ();
 write_fromu_map('sjis-uf-unify', 'sjis',
   @cp932{'jis0201', 'jis0208', 'jis0208undef', 'sjis1undef', 'sjis2undef'},
   @ibm{'jis0201', 'jis0208', 'jis0208undef', 'sjis1undef', 'sjis2undef'}
 );
 open MAP, ">japanese.map" or die $!;
 binmode MAP;
 while (<DATA>) {
   if ( /^!/ ) { last; }
   print MAP;
 }
 print MAP "/* generated by jamap.pl @source_files */\n\n";
 print MAP <<EOM;
 // IE-compatible handling of undefined codepoints:
 // 0x80 --> U+0080
 // 0xa0 --> U+F8F0
 // 0xfd --> U+F8F1
 // 0xfe --> U+F8F2
 // 0xff --> U+F8F3
 EOM
 print_table_index('CP932', @cp932{'jis0208', 'jis0208undef', 'sjis2undef'});
 print_table_index('IBM943', @ibm{'jis0208', 'jis0208undef', 'sjis2undef'});
 print_0212_table_index('JIS0212', $jis0212);
 print_table();
 close MAP or warn $!;
 __DATA__
 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 !

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intl/uconv/tools/jamap.pl@b8a032363ba2 (annotated)

intl/uconv/tools/jamap.pl