michael@0: #!/usr/local/bin/perl
michael@0: # -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0: #
michael@0: # This Source Code Form is subject to the terms of the Mozilla Public
michael@0: # License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: # file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: %gb18030tounicode = {};
michael@0: %unicodetogb18030 = {};
michael@0: %unicodetocp936 = {};
michael@0: %cp936tounicode = {};
michael@0: %tounicodecommon = {};
michael@0: %gb18030tounicodeuniq = {};
michael@0: %gb180304btounicode = {};
michael@0: %cp936tounicodeuniq = {};
michael@0: 
michael@0: %map = {};
michael@0: $rowwidth = ((0xff - 0x80)+(0x7f - 0x40));
michael@0: sub cp936tonum()
michael@0: {
michael@0:    my($cp936) = (@_);
michael@0:    my($first,$second,$jnum);
michael@0:    $first = hex(substr($cp936,2,2));
michael@0:    $second = hex(substr($cp936,4,2));
michael@0:    $jnum = ($first - 0x81 ) * $rowwidth;
michael@0:    if($second >= 0x80)
michael@0:    {
michael@0:        $jnum += $second - 0x80 + (0x7f-0x40);
michael@0:    }
michael@0:    else
michael@0:    {
michael@0:        $jnum += $second - 0x40;
michael@0:    }
michael@0:    return $jnum;
michael@0: }
michael@0: sub addeudc()
michael@0: {
michael@0:   my($l,$h,$hl,$us);
michael@0: 
michael@0:   $u = 0xE000;
michael@0:   $us = sprintf "%04X", $u;
michael@0:   # For AAA1-AFFE
michael@0:   for($h=0xAA; $h <=0xAF;$h++)
michael@0:   {
michael@0:     for($l=0xA1; $l <=0xFE;$l++,$u++)
michael@0:     {
michael@0:         $us = sprintf "%04X", $u;
michael@0:         $hl = sprintf "%02X%02X", $h, $l;
michael@0:         $unicodetocp936{$us} = $hl;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   # For F8A1-FEFE
michael@0:   $us = sprintf "%04X", $u;
michael@0:   for($h=0xF8; $h <=0xFE;$h++)
michael@0:   {
michael@0:     for($l=0xA1; $l <=0xFE;$l++,$u++)
michael@0:     {
michael@0:         $us = sprintf "%04X", $u;
michael@0:         $hl = sprintf "%02X%02X", $h, $l;
michael@0:         $unicodetocp936{$us} = $hl;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   # For A140-A7A0
michael@0:   $us = sprintf "%04X", $u;
michael@0:   for($h=0xA1; $h <=0xA7;$h++)
michael@0:   {
michael@0:     for($l=0x40; $l <=0x7E;$l++,$u++)
michael@0:     {
michael@0:         $us = sprintf "%04X", $u;
michael@0:         $hl = sprintf "%02X%02X", $h, $l;
michael@0:         $unicodetocp936{$us} = $hl;
michael@0:     }
michael@0:     # We need to skip 7F
michael@0:     for($l=0x80; $l <=0xA0;$l++,$u++)
michael@0:     {
michael@0:         $us = sprintf "%04X", $u;
michael@0:         $hl = sprintf "%02X%02X", $h, $l;
michael@0:         $unicodetocp936{$us} = $hl;
michael@0:     }
michael@0:   }
michael@0: }
michael@0: 
michael@0: sub readcp936()
michael@0: {
michael@0:   open(CP936, "<CP936.txt") || die "Cannot open CP936 file";
michael@0:   while(<CP936>)
michael@0:   {
michael@0:     if(! /^#/) {
michael@0:       chop();
michael@0:       ($gb, $u) = split(/\t/, $_);
michael@0:       if($u =~ /^0x/) {
michael@0:         $u1 = substr($u, 2, 4);
michael@0:         $gb1 = substr($gb, 2, 4);
michael@0:         $cp936tounicode{$gb1} = $u1;
michael@0:         if($unicodetocp936{$u1} == "") {
michael@0:           $unicodetocp936{$u1} = $gb1;
michael@0:         } else {
michael@0:           "WARNING: Unicode " . $u1 . " already map to CP936 " . 
michael@0:             $unicodetocp936{$u1} . " when we try to map to " . $gb1 . "\n";
michael@0:         }
michael@0: 
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: }
michael@0: sub readgb18030()
michael@0: {
michael@0:   open(GB18030, "<GB18030") || die "Cannot open GB18030 file";
michael@0:   while(<GB18030>)
michael@0:   {
michael@0:     if(/^[0-9A-F]/) {
michael@0:       chop();
michael@0:       ($u, $gb) = split(/\s/, $_);
michael@0:       $gb18030tounicode{$gb} = $u;
michael@0:         if( $unicodetogb18030{$u} == "" ) {
michael@0:           $unicodetogb18030{$u} = $gb;
michael@0:         } else {
michael@0:           "WARNING: Unicode " . $u1 . " already map to CP936 " . 
michael@0:             $unicodetocp936{$u1} . " when we try to map to " . $gb1 . "\n";
michael@0:         }
michael@0:     }
michael@0:   }
michael@0: }
michael@0: sub splittable()
michael@0: {
michael@0:   my($i, $u);
michael@0:   for($i = 0; $i < 0x10000; $i++) {
michael@0:      $u = sprintf "%04X", $i;
michael@0:      if($unicodetogb18030{$u} eq $unicodetocp936{$u}) {
michael@0:         if($unicodetogb18030{$u} ne "") {
michael@0:           $tounicodecommon{$unicodetogb18030{$u}} = $u;
michael@0:         } else {
michael@0: #          print $u . "|" . $unicodetogb18030{$u} . "|" . $unicodetocp936{$u} . "\n";
michael@0:         }
michael@0:      } else {
michael@0:         if($unicodetogb18030{$u} ne "" ) {
michael@0:            if($unicodetogb18030{$u}.length > 4) {
michael@0:              $gb180304btounicode{$unicodetogb18030{$u}} = $u;
michael@0:            } else {
michael@0:              $gb18030tounicodeuniq{$unicodetogb18030{$u}} = $u;
michael@0:            }
michael@0:         } 
michael@0:         if($unicodetocp936{$u} ne "" ) {
michael@0:            $cp936tounicodeuniq{$unicodetocp936{$u}} = $u;
michael@0:         }
michael@0:      }
michael@0:   }
michael@0: }
michael@0: sub gb4bytestoidx()
michael@0: {
michael@0:   my($gb) = @_;
michael@0:   my($b1,$b2, $b3, $b4,$idx);
michael@0:   $b1 = hex(substr($gb, 0, 2)) - 0x81;
michael@0:   $b2 = hex(substr($gb, 2, 2)) - 0x30;
michael@0:   $b3 = hex(substr($gb, 4, 2)) - 0x81;
michael@0:   $b4 = hex(substr($gb, 6, 2)) - 0x30;
michael@0:   $idx = sprintf "%04X" , ((($b1 * 10) + $b2 ) * 126 + $b3) * 10 + $b4;
michael@0:   return $idx;
michael@0: }
michael@0: sub printcommontable()
michael@0: {
michael@0:   open ( GBKCOMMON, ">gbkcommon.txt" ) || die "cannot open gbkcommon.txt";
michael@0:   foreach $gb (sort(keys %tounicodecommon)) {
michael@0:       print GBKCOMMON "0x" . $gb . "\t0x" . $tounicodecommon{$gb} . "\n";
michael@0:   }
michael@0:   close GBKCOMMON;
michael@0: }
michael@0: sub printcp936table()
michael@0: {
michael@0:   open ( CP936UNIQ, ">cp936uniq.txt" ) || die "cannot open cp936uniq.txt";
michael@0:   foreach $gb (sort(keys %cp936tounicodeuniq)) {
michael@0:       print CP936UNIQ "0x" . $gb . "\t0x" . $cp936tounicodeuniq{$gb} . "\n";
michael@0:   }
michael@0:   close CP936UNIQ;
michael@0: }
michael@0: sub printgb180304btable()
michael@0: {
michael@0:   open ( GB180304B, ">gb180304b.txt" ) || die "cannot open gb180304b.txt";
michael@0:   foreach $gb (sort(keys %gb180304btounicode)) {
michael@0:       if($gb180304btounicode{$gb} ne "FFFF" ) {
michael@0:         print GB180304B "0x" . &gb4bytestoidx($gb) . "\t0x" . $gb180304btounicode{$gb} . "\t# 0x" . $gb . "\n";
michael@0:       }
michael@0:   }
michael@0:   close GB180304B;
michael@0: }
michael@0: sub printgb18030table()
michael@0: {
michael@0:   open ( GB18030UNIQ, ">gb18030uniq.txt" ) || die "cannot open gb18030uniq.txt";
michael@0:   foreach $gb (sort(keys %gb18030tounicodeuniq)) {
michael@0:       print GB18030UNIQ "0x" . $gb . "\t0x" . $gb18030tounicodeuniq{$gb} . "\n";
michael@0:   }
michael@0:   close GB18030UNIQ;
michael@0: }
michael@0: 
michael@0: sub genufut()
michael@0: {
michael@0:  print ( "umaptable -uf < gb18030uniq.txt > gb18030uniq2b.uf\n");
michael@0:  system( "umaptable -uf < gb18030uniq.txt > gb18030uniq2b.uf");
michael@0: 
michael@0:  print ( "umaptable -ut < gb18030uniq.txt > gb18030uniq2b.ut\n");
michael@0:  system( "umaptable -ut < gb18030uniq.txt > gb18030uniq2b.ut");
michael@0: 
michael@0:  print ( "umaptable -uf < cp936uniq.txt > gbkuniq2b.uf\n") ;
michael@0:  system( "umaptable -uf < cp936uniq.txt > gbkuniq2b.uf") ;
michael@0: 
michael@0:  print ( "umaptable -ut < cp936uniq.txt > gbkuniq2b.ut\n") ;
michael@0:  system( "umaptable -ut < cp936uniq.txt > gbkuniq2b.ut") ;
michael@0: 
michael@0:  print ( "umaptable -uf < gb180304b.txt > gb180304bytes.uf\n")  ;
michael@0:  system( "umaptable -uf < gb180304b.txt > gb180304bytes.uf")  ;
michael@0: 
michael@0:  print ( "umaptable -ut < gb180304b.txt > gb180304bytes.ut\n")  ;
michael@0:  system( "umaptable -ut < gb180304b.txt > gb180304bytes.ut")  ;
michael@0: 
michael@0:  print ( "perl cp936tocdx.pl > cp936map.h\n");
michael@0:  system( "perl cp936tocdx.pl > cp936map.h");
michael@0: }
michael@0: 
michael@0: &readgb18030();
michael@0: &readcp936();
michael@0: &addeudc();
michael@0: &splittable();
michael@0: &printcommontable();
michael@0: &printgb180304btable();
michael@0: &printgb18030table();
michael@0: &printcp936table();
michael@0: &genufut();