The Tor Browser: intl/uconv/tools/gengb18030tables.pl@129ffea94266 (annotated)

intl/uconv/tools/gengb18030tables.pl@129ffea94266 (annotated)

intl/uconv/tools/gengb18030tables.pl

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 #!/usr/local/bin/perl
 # -*- 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/.
 %gb18030tounicode = {};
 %unicodetogb18030 = {};
 %unicodetocp936 = {};
 %cp936tounicode = {};
 %tounicodecommon = {};
 %gb18030tounicodeuniq = {};
 %gb180304btounicode = {};
 %cp936tounicodeuniq = {};
 %map = {};
 $rowwidth = ((0xff - 0x80)+(0x7f - 0x40));
 sub cp936tonum()
 {
    my($cp936) = (@_);
    my($first,$second,$jnum);
    $first = hex(substr($cp936,2,2));
    $second = hex(substr($cp936,4,2));
    $jnum = ($first - 0x81 ) * $rowwidth;
    if($second >= 0x80)
    {
        $jnum += $second - 0x80 + (0x7f-0x40);
    }
    else
    {
        $jnum += $second - 0x40;
    }
    return $jnum;
 }
 sub addeudc()
 {
   my($l,$h,$hl,$us);
   $u = 0xE000;
   $us = sprintf "%04X", $u;
   # For AAA1-AFFE
   for($h=0xAA; $h <=0xAF;$h++)
   {
     for($l=0xA1; $l <=0xFE;$l++,$u++)
     {
         $us = sprintf "%04X", $u;
         $hl = sprintf "%02X%02X", $h, $l;
         $unicodetocp936{$us} = $hl;
     }
   }
   # For F8A1-FEFE
   $us = sprintf "%04X", $u;
   for($h=0xF8; $h <=0xFE;$h++)
   {
     for($l=0xA1; $l <=0xFE;$l++,$u++)
     {
         $us = sprintf "%04X", $u;
         $hl = sprintf "%02X%02X", $h, $l;
         $unicodetocp936{$us} = $hl;
     }
   }
   # For A140-A7A0
   $us = sprintf "%04X", $u;
   for($h=0xA1; $h <=0xA7;$h++)
   {
     for($l=0x40; $l <=0x7E;$l++,$u++)
     {
         $us = sprintf "%04X", $u;
         $hl = sprintf "%02X%02X", $h, $l;
         $unicodetocp936{$us} = $hl;
     }
     # We need to skip 7F
     for($l=0x80; $l <=0xA0;$l++,$u++)
     {
         $us = sprintf "%04X", $u;
         $hl = sprintf "%02X%02X", $h, $l;
         $unicodetocp936{$us} = $hl;
     }
   }
 }
 sub readcp936()
 {
   open(CP936, "<CP936.txt") || die "Cannot open CP936 file";
   while(<CP936>)
   {
     if(! /^#/) {
       chop();
       ($gb, $u) = split(/\t/, $_);
       if($u =~ /^0x/) {
         $u1 = substr($u, 2, 4);
         $gb1 = substr($gb, 2, 4);
         $cp936tounicode{$gb1} = $u1;
         if($unicodetocp936{$u1} == "") {
           $unicodetocp936{$u1} = $gb1;
         } else {
           "WARNING: Unicode " . $u1 . " already map to CP936 " .
             $unicodetocp936{$u1} . " when we try to map to " . $gb1 . "\n";
         }
       }
     }
   }
 }
 sub readgb18030()
 {
   open(GB18030, "<GB18030") || die "Cannot open GB18030 file";
   while(<GB18030>)
   {
     if(/^[0-9A-F]/) {
       chop();
       ($u, $gb) = split(/\s/, $_);
       $gb18030tounicode{$gb} = $u;
         if( $unicodetogb18030{$u} == "" ) {
           $unicodetogb18030{$u} = $gb;
         } else {
           "WARNING: Unicode " . $u1 . " already map to CP936 " .
             $unicodetocp936{$u1} . " when we try to map to " . $gb1 . "\n";
         }
     }
   }
 }
 sub splittable()
 {
   my($i, $u);
   for($i = 0; $i < 0x10000; $i++) {
      $u = sprintf "%04X", $i;
      if($unicodetogb18030{$u} eq $unicodetocp936{$u}) {
         if($unicodetogb18030{$u} ne "") {
           $tounicodecommon{$unicodetogb18030{$u}} = $u;
         } else {
 #          print $u . "|" . $unicodetogb18030{$u} . "|" . $unicodetocp936{$u} . "\n";
         }
      } else {
         if($unicodetogb18030{$u} ne "" ) {
            if($unicodetogb18030{$u}.length > 4) {
              $gb180304btounicode{$unicodetogb18030{$u}} = $u;
            } else {
              $gb18030tounicodeuniq{$unicodetogb18030{$u}} = $u;
            }
         }
         if($unicodetocp936{$u} ne "" ) {
            $cp936tounicodeuniq{$unicodetocp936{$u}} = $u;
         }
      }
   }
 }
 sub gb4bytestoidx()
 {
   my($gb) = @_;
   my($b1,$b2, $b3, $b4,$idx);
   $b1 = hex(substr($gb, 0, 2)) - 0x81;
   $b2 = hex(substr($gb, 2, 2)) - 0x30;
   $b3 = hex(substr($gb, 4, 2)) - 0x81;
   $b4 = hex(substr($gb, 6, 2)) - 0x30;
   $idx = sprintf "%04X" , ((($b1 * 10) + $b2 ) * 126 + $b3) * 10 + $b4;
   return $idx;
 }
 sub printcommontable()
 {
   open ( GBKCOMMON, ">gbkcommon.txt" ) || die "cannot open gbkcommon.txt";
   foreach $gb (sort(keys %tounicodecommon)) {
       print GBKCOMMON "0x" . $gb . "\t0x" . $tounicodecommon{$gb} . "\n";
   }
   close GBKCOMMON;
 }
 sub printcp936table()
 {
   open ( CP936UNIQ, ">cp936uniq.txt" ) || die "cannot open cp936uniq.txt";
   foreach $gb (sort(keys %cp936tounicodeuniq)) {
       print CP936UNIQ "0x" . $gb . "\t0x" . $cp936tounicodeuniq{$gb} . "\n";
   }
   close CP936UNIQ;
 }
 sub printgb180304btable()
 {
   open ( GB180304B, ">gb180304b.txt" ) || die "cannot open gb180304b.txt";
   foreach $gb (sort(keys %gb180304btounicode)) {
       if($gb180304btounicode{$gb} ne "FFFF" ) {
         print GB180304B "0x" . &gb4bytestoidx($gb) . "\t0x" . $gb180304btounicode{$gb} . "\t# 0x" . $gb . "\n";
       }
   }
   close GB180304B;
 }
 sub printgb18030table()
 {
   open ( GB18030UNIQ, ">gb18030uniq.txt" ) || die "cannot open gb18030uniq.txt";
   foreach $gb (sort(keys %gb18030tounicodeuniq)) {
       print GB18030UNIQ "0x" . $gb . "\t0x" . $gb18030tounicodeuniq{$gb} . "\n";
   }
   close GB18030UNIQ;
 }
 sub genufut()
 {
  print ( "umaptable -uf < gb18030uniq.txt > gb18030uniq2b.uf\n");
  system( "umaptable -uf < gb18030uniq.txt > gb18030uniq2b.uf");
  print ( "umaptable -ut < gb18030uniq.txt > gb18030uniq2b.ut\n");
  system( "umaptable -ut < gb18030uniq.txt > gb18030uniq2b.ut");
  print ( "umaptable -uf < cp936uniq.txt > gbkuniq2b.uf\n") ;
  system( "umaptable -uf < cp936uniq.txt > gbkuniq2b.uf") ;
  print ( "umaptable -ut < cp936uniq.txt > gbkuniq2b.ut\n") ;
  system( "umaptable -ut < cp936uniq.txt > gbkuniq2b.ut") ;
  print ( "umaptable -uf < gb180304b.txt > gb180304bytes.uf\n")  ;
  system( "umaptable -uf < gb180304b.txt > gb180304bytes.uf")  ;
  print ( "umaptable -ut < gb180304b.txt > gb180304bytes.ut\n")  ;
  system( "umaptable -ut < gb180304b.txt > gb180304bytes.ut")  ;
  print ( "perl cp936tocdx.pl > cp936map.h\n");
  system( "perl cp936tocdx.pl > cp936map.h");
 }
 &readgb18030();
 &readcp936();
 &addeudc();
 &splittable();
 &printcommontable();
 &printgb180304btable();
 &printgb18030table();
 &printcp936table();
 &genufut();

The Tor Browser / annotate

intl/uconv/tools/gengb18030tables.pl@129ffea94266 (annotated)

intl/uconv/tools/gengb18030tables.pl