Bug 912470 part 1 - Implement Encoding Standard-compliant big5 decoder. r=emk.

This commit is contained in:
Henri Sivonen 2015-06-16 15:26:10 +03:00
parent 25d06c35c0
commit 3672b55134
24 changed files with 19393 additions and 37783 deletions

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@ -54,8 +54,8 @@ xn--wgbh1c=windows-1256
gr=ISO-8859-7
hk=Big5-HKSCS
xn--j6w193g=Big5-HKSCS
hk=Big5
xn--j6w193g=Big5
hr=windows-1250

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@ -189,7 +189,7 @@ x-gbk=gbk
gb18030=gb18030
hz-gb-2312=replacement
big5=Big5
big5-hkscs=Big5-HKSCS
big5-hkscs=Big5
cn-big5=Big5
csbig5=Big5
x-x-big5=Big5

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@ -44,6 +44,7 @@ function runTextDecoderOptions()
}, "testDecodeABVOption");
test(testDecoderForThaiEncoding, "testDecoderForThaiEncoding");
test(testInvalid2022JP, "testInvalid2022JP");
test(testDecoderForBig5, "testDecoderForBig5");
}
/*
@ -355,8 +356,7 @@ function testDecoderGetEncoding()
{encoding: "x-mac-cyrillic", labels: ["x-mac-cyrillic", "x-mac-ukrainian"]},
{encoding: "gbk", labels: ["chinese", "csgb2312", "csiso58gb231280", "gb2312", "gb_2312", "gb_2312-80", "gbk", "iso-ir-58", "x-gbk"]},
{encoding: "gb18030", labels: ["gb18030"]},
{encoding: "big5", labels: ["big5", "cn-big5", "csbig5", "x-x-big5"]},
{encoding: "big5-hkscs", labels: ["big5-hkscs"]},
{encoding: "big5", labels: ["big5", "cn-big5", "csbig5", "x-x-big5", "big5-hkscs"]},
{encoding: "euc-jp", labels: ["cseucpkdfmtjapanese", "euc-jp", "x-euc-jp"]},
{encoding: "iso-2022-jp", labels: ["csiso2022jp", "iso-2022-jp"]},
{encoding: "shift_jis", labels: ["csshiftjis", "ms_kanji", "shift-jis", "shift_jis", "sjis", "windows-31j", "x-sjis"]},
@ -463,3 +463,78 @@ function testInvalid2022JP()
});
assert_equals(failureCount, 0, failureCount + " of " + inputs.length + " tests failed");
}
function testDecoderForBig5()
{
const inputs = [
[ 0x61, 0x62 ],
[ 0x87, 0x40 ],
[ 0xFE, 0xFE ],
[ 0xFE, 0xFD ],
[ 0x88, 0x62 ],
[ 0x88, 0x64 ],
[ 0x88, 0x66 ],
[ 0x88, 0xA3 ],
[ 0x88, 0xA5 ],
[ 0x88, 0xA7 ],
[ 0x99, 0xD4 ],
[ 0x99, 0xD5 ],
[ 0x99, 0xD6 ],
[ 0x61, 0x87, 0x40, 0x62 ],
[ 0x61, 0xFE, 0xFE, 0x62 ],
[ 0x61, 0xFE, 0xFD, 0x62 ],
[ 0x61, 0x88, 0x62, 0x62 ],
[ 0x61, 0x88, 0x64, 0x62 ],
[ 0x61, 0x88, 0x66, 0x62 ],
[ 0x61, 0x88, 0xA3, 0x62 ],
[ 0x61, 0x88, 0xA5, 0x62 ],
[ 0x61, 0x88, 0xA7, 0x62 ],
[ 0x61, 0x99, 0xD4, 0x62 ],
[ 0x61, 0x99, 0xD5, 0x62 ],
[ 0x61, 0x99, 0xD6, 0x62 ],
[ 0x80, 0x61 ],
[ 0xFF, 0x61 ],
[ 0xFE, 0x39 ],
[ 0x87, 0x66 ],
[ 0x81, 0x40 ],
[ 0x61, 0x81 ],
];
const expectations = [
"\u0061\u0062",
"\u43F0",
"\u79D4",
"\uD864\uDD0D",
"\u00CA\u0304",
"\u00CA\u030C",
"\u00CA",
"\u00EA\u0304",
"\u00EA\u030C",
"\u00EA",
"\u8991",
"\uD85E\uDD67",
"\u8A29",
"\u0061\u43F0\u0062",
"\u0061\u79D4\u0062",
"\u0061\uD864\uDD0D\u0062",
"\u0061\u00CA\u0304\u0062",
"\u0061\u00CA\u030C\u0062",
"\u0061\u00CA\u0062",
"\u0061\u00EA\u0304\u0062",
"\u0061\u00EA\u030C\u0062",
"\u0061\u00EA\u0062",
"\u0061\u8991\u0062",
"\u0061\uD85E\uDD67\u0062",
"\u0061\u8A29\u0062",
"\uFFFD\u0061",
"\uFFFD\u0061",
"\uFFFD\u0039",
"\uFFFD\u0066",
"\uFFFD\u0040",
"\u0061\uFFFD",
];
for (var i = 0; i < inputs.length; i++) {
testCharset({encoding: "big5", input: inputs[i], expected: expectations[i],
msg: "decoder test #" + i + " for big5."});
}
}

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@ -11,7 +11,7 @@ acp.932=Shift_JIS
acp.936=gb18030
acp.949=EUC-KR
acp.950=Big5
acp.951=Big5-HKSCS
acp.951=Big5
acp.1250=windows-1250
acp.1251=windows-1251
acp.1252=windows-1252

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@ -137,10 +137,8 @@ UNIFIED_SOURCES += [
]
UNIFIED_SOURCES += [
'ucvtw/nsBIG5HKSCSToUnicode.cpp',
'ucvtw/nsBIG5ToUnicode.cpp',
'ucvtw/nsUnicodeToBIG5.cpp',
'ucvtw/nsUnicodeToBIG5HKSCS.cpp',
]
UNIFIED_SOURCES += [

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@ -82,14 +82,18 @@ public:
* @param aDestLength [IN/OUT] the length of the destination data buffer;
* after conversion will contain the number of Unicode
* characters written
* @return NS_PARTIAL_MORE_INPUT if only a partial conversion was
* done; more input is needed to continue
* NS_PARTIAL_MORE_OUTPUT if only a partial conversion
* was done; more output space is needed to continue
* NS_ERROR_ILLEGAL_INPUT if an illegal input sequence
* @return NS_ERROR_UDEC_ILLEGALINPUT if an illegal input sequence
* was encountered and the behavior was set to "signal";
* the caller must skip over one byte, reset the decoder
* and retry.
* NS_OK_UDEC_MOREOUTPUT if only a partial conversion
* was done; more output space is needed to continue
* NS_OK_UDEC_MOREINPUT if the input ended in the middle
* of an input code unit sequence. If this is the last
* result the caller has at the end of the stream, the
* caller must append one U+FFFD to the output.
* NS_OK if the input ended after a complete input code
* unit sequence.
*/
NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength,
char16_t * aDest, int32_t * aDestLength) = 0;

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@ -111,8 +111,6 @@
#include "nsUCvTWDll.h"
#include "nsBIG5ToUnicode.h"
#include "nsUnicodeToBIG5.h"
#include "nsBIG5HKSCSToUnicode.h"
#include "nsUnicodeToBIG5HKSCS.h"
// ucvko
#include "nsUCvKOCID.h"
@ -184,7 +182,6 @@ NS_UCONV_REG_UNREG("EUC-JP", NS_EUCJPTOUNICODE_CID, NS_UNICODETOEUCJP_CID)
// ucvtw
NS_UCONV_REG_UNREG("Big5", NS_BIG5TOUNICODE_CID, NS_UNICODETOBIG5_CID)
NS_UCONV_REG_UNREG("Big5-HKSCS", NS_BIG5HKSCSTOUNICODE_CID, NS_UNICODETOBIG5HKSCS_CID)
// ucvko
NS_UCONV_REG_UNREG("EUC-KR", NS_EUCKRTOUNICODE_CID, NS_UNICODETOEUCKR_CID)
@ -214,6 +211,7 @@ NS_GENERIC_FACTORY_CONSTRUCTOR(nsISO2022JPToUnicodeV2)
NS_GENERIC_FACTORY_CONSTRUCTOR(nsUnicodeToISO2022JP)
// ucvtw
NS_GENERIC_FACTORY_CONSTRUCTOR(nsBIG5ToUnicode)
// ucvko
@ -252,18 +250,6 @@ const uint16_t g_ufBig5Mapping[] = {
#include "big5.uf"
};
const uint16_t g_utBIG5Mapping[] = {
#include "big5.ut"
};
const uint16_t g_ufBig5HKSCSMapping[] = {
#include "hkscs.uf"
};
const uint16_t g_utBig5HKSCSMapping[] = {
#include "hkscs.ut"
};
// ucvko
const uint16_t g_utKSC5601Mapping[] = {
#include "u20kscgl.ut"
@ -377,8 +363,6 @@ NS_DEFINE_NAMED_CID(NS_UNICODETOEUCJP_CID);
NS_DEFINE_NAMED_CID(NS_UNICODETOISO2022JP_CID);
NS_DEFINE_NAMED_CID(NS_UNICODETOBIG5_CID);
NS_DEFINE_NAMED_CID(NS_BIG5TOUNICODE_CID);
NS_DEFINE_NAMED_CID(NS_UNICODETOBIG5HKSCS_CID);
NS_DEFINE_NAMED_CID(NS_BIG5HKSCSTOUNICODE_CID);
NS_DEFINE_NAMED_CID(NS_EUCKRTOUNICODE_CID);
NS_DEFINE_NAMED_CID(NS_UNICODETOEUCKR_CID);
NS_DEFINE_NAMED_CID(NS_GBKTOUNICODE_CID);
@ -481,8 +465,6 @@ static const mozilla::Module::CIDEntry kUConvCIDs[] = {
{ &kNS_UNICODETOISO2022JP_CID, false, nullptr, nsUnicodeToISO2022JPConstructor },
{ &kNS_UNICODETOBIG5_CID, false, nullptr, nsUnicodeToBIG5Constructor },
{ &kNS_BIG5TOUNICODE_CID, false, nullptr, nsBIG5ToUnicodeConstructor },
{ &kNS_UNICODETOBIG5HKSCS_CID, false, nullptr, nsUnicodeToBIG5HKSCSConstructor },
{ &kNS_BIG5HKSCSTOUNICODE_CID, false, nullptr, nsBIG5HKSCSToUnicodeConstructor },
{ &kNS_EUCKRTOUNICODE_CID, false, nullptr, nsCP949ToUnicodeConstructor },
{ &kNS_UNICODETOEUCKR_CID, false, nullptr, nsUnicodeToCP949Constructor },
{ &kNS_GBKTOUNICODE_CID, false, nullptr, nsGB18030ToUnicodeConstructor },
@ -587,8 +569,6 @@ static const mozilla::Module::ContractIDEntry kUConvContracts[] = {
{ NS_UNICODEENCODER_CONTRACTID_BASE "ISO-2022-JP", &kNS_UNICODETOISO2022JP_CID },
{ NS_UNICODEENCODER_CONTRACTID_BASE "Big5", &kNS_UNICODETOBIG5_CID },
{ NS_UNICODEDECODER_CONTRACTID_BASE "Big5", &kNS_BIG5TOUNICODE_CID },
{ NS_UNICODEENCODER_CONTRACTID_BASE "Big5-HKSCS", &kNS_UNICODETOBIG5HKSCS_CID },
{ NS_UNICODEDECODER_CONTRACTID_BASE "Big5-HKSCS", &kNS_BIG5HKSCSTOUNICODE_CID },
{ NS_UNICODEDECODER_CONTRACTID_BASE "EUC-KR", &kNS_EUCKRTOUNICODE_CID },
{ NS_UNICODEENCODER_CONTRACTID_BASE "EUC-KR", &kNS_UNICODETOEUCKR_CID },
{ NS_UNICODEDECODER_CONTRACTID_BASE "gbk", &kNS_GBKTOUNICODE_CID },

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@ -0,0 +1,170 @@
#!/usr/bin/python
# 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/.
# Adapted from
# https://hg.mozilla.org/projects/htmlparser/file/3ac10f9e8612/generate-encoding-data.py
# indexes.json comes from
# https://encoding.spec.whatwg.org/indexes.json
# i.e.
# https://github.com/whatwg/encoding/blob/a5215d07106e250dfef34908b99b3e4a576be2f6/indexes.json
import json
indexes = json.load(open("indexes.json", "r"))
def nullToZero(codePoint):
if not codePoint:
codePoint = 0
return codePoint
index = []
for codePoint in indexes["big5"]:
index.append(nullToZero(codePoint))
# There are four major gaps consisting of more than 4 consecutive invalid pointers
gaps = []
consecutive = 0
consecutiveStart = 0
offset = 0
for codePoint in index:
if codePoint == 0:
if consecutive == 0:
consecutiveStart = offset
consecutive +=1
else:
if consecutive > 4:
gaps.append((consecutiveStart, consecutiveStart + consecutive))
consecutive = 0
offset += 1
def invertRanges(ranges, cap):
inverted = []
invertStart = 0
for (start, end) in ranges:
if start != 0:
inverted.append((invertStart, start))
invertStart = end
inverted.append((invertStart, cap))
return inverted
cap = len(index)
ranges = invertRanges(gaps, cap)
# Now compute a compressed lookup table for astralness
gaps = []
consecutive = 0
consecutiveStart = 0
offset = 0
for codePoint in index:
if codePoint <= 0xFFFF:
if consecutive == 0:
consecutiveStart = offset
consecutive +=1
else:
if consecutive > 40:
gaps.append((consecutiveStart, consecutiveStart + consecutive))
consecutive = 0
offset += 1
astralRanges = invertRanges(gaps, cap)
includeFile = open("../ucvtw/nsBIG5DecoderData.h", "w")
includeFile.write('''/* 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/. */
/*
* THIS IS A GENERATED FILE. PLEASE DO NOT EDIT.
* Instead, please regenerate using intl/uconv/tools/gen-big5-data.py
*/
static const char16_t kBig5LowBitsTable[] = {
''')
for (low, high) in ranges:
for i in xrange(low, high):
includeFile.write(' 0x%04X,\n' % (index[i] & 0xFFFF))
includeFile.write('''};
static const uint32_t kBig5AstralnessTable[] = {
''')
# An array of bool is inefficient per
# http://stackoverflow.com/questions/4049156/1-bit-per-bool-in-array-c
bits = []
for (low, high) in astralRanges:
for i in xrange(low, high):
bits.append(1 if index[i] > 0xFFFF else 0)
# pad length to multiple of 32
for i in xrange(32 - (len(bits) % 32)):
bits.append(0)
i = 0
while i < len(bits):
accu = 0
for j in xrange(32):
accu |= bits[i + j] << j
includeFile.write(' 0x%08X,\n' % accu)
i += 32
includeFile.write('''};
// static
char16_t
nsBIG5ToUnicode::LowBits(size_t aPointer)
{
''')
base = 0
for (low, high) in ranges:
includeFile.write(''' if (aPointer < %d) {
return 0;
}
if (aPointer < %d) {
return kBig5LowBitsTable[%d + (aPointer - %d)];
}
''' % (low, high, base, low))
base += (high - low)
includeFile.write(''' return 0;
}
// static
bool
nsBIG5ToUnicode::IsAstral(size_t aPointer)
{
''')
base = 0
for (low, high) in astralRanges:
if high - low == 1:
includeFile.write(''' if (aPointer < %d) {
return false;
}
if (aPointer == %d) {
return true;
}
''' % (low, low))
else:
includeFile.write(''' if (aPointer < %d) {
return false;
}
if (aPointer < %d) {
size_t index = %d + (aPointer - %d);
return kBig5AstralnessTable[index >> 5] & (1 << (index & 0x1F));
}
''' % (low, high, base, low))
base += (high - low)
includeFile.write(''' return false;
}
''')
includeFile.close()

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@ -1,959 +0,0 @@
#!/usr/bin/perl -w
#
# gen-big5hkscs-2001-mozilla.pl
# a Perl script that generates Big5-HKSCS <-> Unicode
# conversion tables for Mozilla
#
# Author (of the original Perl script):
# Anthony Fok <anthony@thizlinux.com> <foka@debian.org>
# Copyright (C) 2001, 2002 ThizLinux Laboratory Ltd.
# License: GNU General Public License, v2 or later.
#
# This version includes original C source code from
# glibc-2.2.5/iconvdata/big5hkscs.c by Ulrich Drepper <drepper@redhat.com>
# Roger So <roger.so@sw-linux.com>
#
# First attempt for Qt-2.3.x: 2001-09-21
# A working version for Qt-2.3.x: 2001-10-30
# Ported to glibc-2.2.5 with HKSCS-2001: 2002-03-21
# Adapted to generate conversion tables for Mozilla: 2002-11-26
# Adapted to generate conversion tables for Mozilla: 2002-11-30
# Cleaned up the script somewhat: 2002-12-04
# Minor revisions for submitting to Mozilla Bugzilla: 2002-12-10
#
# Notes:
#
# 1. The latest version of this script may be found in:
# http://www.thizlinux.com/~anthony/hkscs/gen-glibc-big5hkscs.pl
# http://people.debian.org/~foka/hkscs/gen-glibc-big5hkscs.pl
# Or, better yet, e-mail me and ask for the latest version.
#
# 2. This script generates data from 3 tables:
# a. http://www.microsoft.com/typography/unicode/950.txt
# b. http://www.info.gov.hk/digital21/chi/hkscs/download/big5-iso.txt
# c. http://www.info.gov.hk/digital21/chi/hkscs/download/big5cmp.txt
#
# Make sure your big5-iso.txt is the latest HKSCS-2001 version.
#
# 3. [glibc]: I have currently split the ucs_to_big5_hkscs_?[] tables into
# different areas similar to the way Ulrich and Roger did it,
# but extended for HKSCS-2001.
#
# 4. [Mozilla]: This script is very quick-and-dirty in some places.
# Call either gen_mozilla_uf() or gen_mozilla_ut() to generate
# the appropriate tables for feeding into "fromu" or "tou".
#
# 5. [CharMapML]: The comments regarding TW-BIG5 herein need to be organized.
# Also, please make sure "$hkscs_mode = 0;" for TW-BIG5 mode.
# Otherwise, this script would generate a HKSCS table.
# (Yes, I know, I should clean up this script and make it more modular,
# and with command-line options or whatnot. I'll do that later. :-)
#
# If you have any questions or concerns, please feel free to contact me
# at Anthony Fok <anthony@thizlinux.com> or <foka@debian.org> :-)
#
# Last but not least, special thanks to ThizLinux Laboratory Ltd. (HK)
# for their generous support in this work.
#
# 1. UDA3, 0x8840 - 0x8dfe
# 2. UDA2, 0x8e40 - 0xa0fe
# 3. VDA, 0xc6a1 - 0xc8fe
#use Getopt::Std;
my ( %b2u, %u2b, $unicode, $big5, $high, $low, $i, $count );
my $debug = 0;
my $hkscs_mode = 1;
my $kangxi = 0;
my $use_range = 0;
my $bmp_only = 1;
#
# Subroutine Declaration
#
sub read_cp950();
sub adjust_radicals();
sub read_hkscs_main();
sub read_hkscs_cmp();
sub post_tuning();
sub gen_charmapml();
sub gen_check_b2u();
sub gen_check_u2b();
sub gen_mozilla_uf();
sub gen_mozilla_ut();
sub gen_glibc();
###########################################################################
#
# Main program
#
# First, read Microsoft's CP950 as base Big5.
read_cp950 ();
# Add mappings to Kangxi Radicals.
# The b2u direction is added only if $kangxi is not null.
adjust_radicals ();
# Then, read the HKSCS table.
# Again, see the $hkscs_mode variable.
read_hkscs_main ();
read_hkscs_cmp () if $hkscs_mode;
post_tuning ();
# Then, choose one of the following:
#gen_charmapml();
gen_mozilla_uf();
#gen_mozilla_ut();
#gen_check_u2b();
#gen_glibc();
# End of program
exit 0;
#############################################################################
#
# Subroutines
#
sub read_cp950() {
open( CP950, "950.txt" ) or die;
my $mode = 0;
while (<CP950>) {
s/\r//;
chomp;
next if /^$/;
last if /^ENDCODEPAGE/;
if (/^DBCSTABLE (\d+)\s+;LeadByte = 0x([0-9a-f]{2})/) {
$mode = 1;
( $count, $high ) = ( $1, $2 );
$i = 0;
next;
}
if (/^WCTABLE (\d+)/) {
$mode = 2;
$count = $1;
$i = 0;
next;
}
next if $mode == 0;
if ( $mode == 1 ) {
( $low, $unicode, $comment ) = split "\t";
$low =~ s/^0x//;
$unicode =~ s/^0x//;
$big5 = $high . $low;
$b2u{ uc($big5) } = uc($unicode);
if ( ++$i == $count ) { $mode = 0; $count = 0; next; }
}
if ( $mode == 2 ) {
( $unicode, $big5, $comment ) = split "\t";
$unicode =~ s/^0x//;
$big5 =~ s/^0x//;
my $u = hex($unicode);
my $b = hex($big5);
$u2b{ uc($unicode) } = uc($big5) unless
# Skip Microsoft's over-generous (or over-zealous?) mappings
# "Faked" accented latin characters
( $b <= 0xFF and $b != $u )
# "Faked" Ideographic Annotation ___ Mark
or ( $u >= 0x3192 and $u <= 0x319F )
# "Faked" Parenthesized Ideograph ___
or ( $u >= 0x3220 and $u <= 0x3243 )
# "Faked" Circled Ideograph ___ except Circled Ideograph Correct
or ( $u >= 0x3280 and $u <= 0x32B0 and $u != 0x32A3 )
# ¢£¥’μ﹐
or ( $u == 0xA2
or $u == 0xA3
or $u == 0xA5
or $u == 0xB4
or $u == 0xB5
or $u == 0xB8 )
# ¯─∥‧˙〃 ̄﹨°≡︴⊙⊕~﹋
or ( $u == 0x0305 # ???
or $u == 0x2015
or $u == 0x2016
or $u == 0x2022
or $u == 0x2024
or $u == 0x2033
or $u == 0x203E # ???
or $u == 0x2216
or $u == 0x2218
or $u == 0x2263
or $u == 0x2307
or $u == 0x2609
or $u == 0x2641
or $u == 0x301C
or $u == 0x3030 )
# ︿‘﹑
or ( $u == 0xFF3E or $u == 0xFF40 or $u == 0xFF64 );
if ( ++$i == $count ) { $mode = 0; $count = 0; next; }
}
}
}
sub adjust_radicals() {
# B5+C6BF - B5+C6D7: Radicals (?)
# TW-BIG5 drafted by Autrijus uses Kangxi Radicals whenever possible.
#
# Big5-HKSCS tends towards using the character in Unicode CJK Ideographs
# Note that HKSCS does not explicitly define
# B5+C6CF, B5+C6D3, B5+C6D5, B5+C6D7 (廴、无、癶、隶),
# but do have these characters at B5+FBFD, B5+FCD3, B5+FEC1, B5+90C4,
# mapped to U+5EF4, U+65E0, U+7676, U+96B6 respectively.
#
# As for B5+C6CD (⼳), HKSCS maps it to U+2F33 just like TW-BIG5.
# However, it also maps B5+FBF4 (幺) to U+5E7A.
$b2u{"C6BF"} = "2F02" if $kangxi;
$u2b{"2F02"} = "C6BF"; #
$b2u{"C6C0"} = "2F03" if $kangxi;
$u2b{"2F03"} = "C6C0"; # 丿
$b2u{"C6C1"} = "2F05" if $kangxi;
$u2b{"2F05"} = "C6C1"; # 亅
$b2u{"C6C2"} = "2F07" if $kangxi;
$u2b{"2F07"} = "C6C2"; # 亠
$b2u{"C6C3"} = "2F0C" if $kangxi;
$u2b{"2F0C"} = "C6C3"; # 冂
$b2u{"C6C4"} = "2F0D" if $kangxi;
$u2b{"2F0D"} = "C6C4"; # 冖
$b2u{"C6C5"} = "2F0E" if $kangxi;
$u2b{"2F0E"} = "C6C5"; # 冫
$b2u{"C6C6"} = "2F13" if $kangxi;
$u2b{"2F13"} = "C6C6"; # 勹
$b2u{"C6C7"} = "2F16" if $kangxi;
$u2b{"2F16"} = "C6C7"; # 匸
$b2u{"C6C8"} = "2F19" if $kangxi;
$u2b{"2F19"} = "C6C8"; # 卩
$b2u{"C6C9"} = "2F1B" if $kangxi;
$u2b{"2F1B"} = "C6C9"; # 厶
$b2u{"C6CA"} = "2F22" if $kangxi;
$u2b{"2F22"} = "C6CA"; # 夊
$b2u{"C6CB"} = "2F27" if $kangxi;
$u2b{"2F27"} = "C6CB"; # 宀
$b2u{"C6CC"} = "2F2E" if $kangxi;
$u2b{"2F2E"} = "C6CC"; # 巛
$b2u{"C6CD"} = "2F33" if $kangxi;
$u2b{"2F33"} = "C6CD"; # ⼳
$b2u{"C6CE"} = "2F34" if $kangxi;
$u2b{"2F34"} = "C6CE"; # 广
$b2u{"C6CF"} = "2F35" if $kangxi;
$u2b{"2F35"} = "C6CF"; # 廴
$b2u{"C6D0"} = "2F39" if $kangxi;
$u2b{"2F39"} = "C6D0"; # 彐
$b2u{"C6D1"} = "2F3A" if $kangxi;
$u2b{"2F3A"} = "C6D1"; # 彡
$b2u{"C6D2"} = "2F41" if $kangxi;
$u2b{"2F41"} = "C6D2"; # 攴
$b2u{"C6D3"} = "2F46" if $kangxi;
$u2b{"2F46"} = "C6D3"; # 无
$b2u{"C6D4"} = "2F67" if $kangxi;
$u2b{"2F67"} = "C6D4"; # 疒
$b2u{"C6D5"} = "2F68" if $kangxi;
$u2b{"2F68"} = "C6D5"; # 癶
$b2u{"C6D6"} = "2FA1" if $kangxi;
$u2b{"2FA1"} = "C6D6"; # 辵
$b2u{"C6D7"} = "2FAA" if $kangxi;
$u2b{"2FAA"} = "C6D7"; # 隶
}
sub read_hkscs_main() {
open( B2U, "<big5-iso.txt" ) or die;
while (<B2U>) {
next
unless
/([[:xdigit:]]{4})\s+([[:xdigit:]]{4})\s+([[:xdigit:]]{4})\s+([[:xdigit:]]{4,5})/;
( $big5, $iso1993, $iso2000, $iso2001 ) = ( $1, $2, $3, $4 );
my $b = hex($big5);
# For non-HKSCS mode, only take data in the VDA range (?)
next unless $hkscs_mode
# Note that we don't go from B5+C6A1-B5+C6FE, but rather only
# C6A1-C8D3 excluding C6BF-C6D7 (Kangxi Radicals)
# because C8D4-C8FE are not assigned in TW-BIG5
# if we are to follow Arphic PL Big-5 fonts. (To be discussed)
or
( $b >= 0xC6A1 && $b <= 0xC8D3 and !( $b >= 0xC6BF && $b <= 0xC6D7 ) )
or ( $b >= 0xF9D6 && $b <= 0xF9FE );
print STDERR
"B2U, 2000: $big5 redefined from U+$b2u{$big5} to U+$iso2000.\n"
if $debug
and defined( $b2u{$big5} )
and $b2u{$big5} ne $iso2000;
$b2u{$big5} = $bmp_only ? $iso2000 : $iso2001
unless !$hkscs_mode
and $b == 0xF9FE;
# B5+F9FE is mapped differently in TW-BIG5 and HKSCS, to
# U+2593 (Dark Shade) and U+FFED (Halfwidth Black Square) respectively.
# Which is more correct? I don't know! (To be discussed)
print STDERR
"1993: U+$iso1993 redefined from $u2b{$iso1993} to $big5.\n"
if $debug
and defined( $u2b{$iso1993} )
and $u2b{$iso1993} ne $big5;
$u2b{$iso1993} = $big5;
print STDERR
"2000: U+$iso2000 redefined from $u2b{$iso2000} to $big5.\n"
if $debug
and defined( $u2b{$iso2000} )
and $u2b{$iso2000} ne $big5;
$u2b{$iso2000} = $big5;
print STDERR
"2001: U+$iso2001 redefined from $u2b{$iso2001} to $big5.\n"
if $debug
and defined( $u2b{$iso2001} )
and $u2b{$iso2001} ne $big5;
$u2b{$iso2001} = $big5;
}
close B2U;
} # read_hkscs_main()
sub read_hkscs_cmp() {
###########################################################################
# Add Big5 compatibility coding...
#
# Stephan, here is the code segment that you may want to implement
# in your convertbig5hkscs2001.pl
#
open( B5CMP, "<big5cmp.txt" ) or die;
$mode = 0;
while (<B5CMP>) {
if (/^=====/) { $mode = 1; next; }
next if $mode == 0;
last if $mode == 1 and /^\s+/;
chomp;
my ( $big5cmp, $big5 ) = split " ";
$big5cmp = uc($big5cmp);
$big5 = uc($big5);
my $uni = $b2u{$big5};
my $unicmp = $b2u{$big5cmp};
print STDERR
"Was: U+$unicmp -> $u2b{$unicmp}, $big5cmp -> U+$b2u{$big5cmp}\t"
if $debug;
$b2u{$big5cmp} = $uni;
$u2b{$unicmp} = $big5;
print STDERR
"Now: U+$unicmp -> $u2b{$unicmp}, $big5cmp -> U+$b2u{$big5cmp}\n"
if $debug;
}
close B5CMP;
} # read_hkscs_cmp();
sub post_tuning() {
# And finally, fine-tuning...
for $i ( 0x00 .. 0x80 ) {
$big5 = $unicode = sprintf( "%04X", $i );
$b2u{$big5} = $unicode;
}
# Add Euro '€' (I wonder why this 950.txt doesn't have it.)
$b2u{"A3E1"} = "20AC";
$u2b{"20AC"} = "A3E1";
# Box drawing characters:
# Align with Big-5E (To be discussed, as it differs from CP950 and HKSCS)
# (To be discussed)
if ( !$hkscs_mode ) {
$u2b{"2550"} = "A2A4"; # Big5: ═ (also B5-F9F9)
$u2b{"255E"} = "A2A5"; # Big5: ╞ (also B5-F9E9)
$u2b{"2561"} = "A2A7"; # Big5: ╡ (also B5-F9EB)
$u2b{"256A"} = "A2A6"; # Big5: ╪ (also B5-F9EA)
$u2b{"256D"} = "A27E"; # Big5: ╭ (also B5-F9FA)
$u2b{"256E"} = "A2A1"; # Big5: ╮ (also B5-F9FB)
$u2b{"256F"} = "A2A3"; # Big5: ╯ (also B5-F9FD)
$u2b{"2570"} = "A2A2"; # Big5: ╰ (also B5-F9FC)
}
# "Hangzhou" or "Suzhou" Chinese numerals 10, 20, 30 (十卄卅)
# (To be discussed)
if ( !$hkscs_mode ) {
$b2u{"A2CC"} = "3038";
$u2b{"3038"} = "A2CC";
$b2u{"A2CD"} = "3039";
$u2b{"3039"} = "A2CD";
$b2u{"A2CE"} = "303A";
$u2b{"303A"} = "A2CE";
}
# The character for ethnic group "Yi" (彝):
# (To be discussed)
$u2b{"5F5E"} = "C255"; # Always add this.
if ( !$hkscs_mode ) {
$b2u{"C255"} = "5F5E";
}
} # post_tuning()
sub gen_charmapml() {
###########################################################################
#
# Codes for generating CharMapML XML file
print <<EOT;
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE characterMapping SYSTEM "http://www.unicode.org/unicode/reports/tr22/CharacterMapping.dtd">
EOT
if ($hkscs_mode) {
print <<EOT;
<characterMapping id="big5-hkscs-2001" version="1">
<history>
<modified version="1" date="2002-11-30">
Trial version generated from 950.txt + part of big5-iso.txt (HKSCS-2001)
with Euro added, with CP950's excessive fub (fallbacks uni->big5) removed,
and with some other manual tweaking.
</modified>
</history>
EOT
}
else {
print <<EOT;
<characterMapping id="tw-big5-2002" version="1">
<history>
<modified version="1" date="2002-11-30">
Trial version generated from 950.txt + part of big5-iso.txt (HKSCS-2001)
with Euro added, with CP950's excessive fub (fallbacks uni->big5) removed,
and with some other manual tweaking.
</modified>
</history>
EOT
}
print <<EOT;
<validity>
<state type="FIRST" next="VALID" s="0" e="80" max="FFFF"/>
<state type="FIRST" next="SECOND" s="81" e="FE" max="FFFF"/>
<state type="SECOND" next="VALID" s="40" e="7E" max="FFFF"/>
<state type="SECOND" next="VALID" s="A1" e="FE" max="FFFF"/>
</validity>
<assignments sub="3F">
EOT
print " <!-- One to one mappings -->\n";
for $unicode ( sort { hex($a) <=> hex($b) } keys %u2b ) {
$big5 = $u2b{$unicode};
$u = hex($unicode);
next
unless defined( $b2u{$big5} )
and $unicode eq $b2u{$big5}
and
not( $use_range and !$hkscs_mode and $u >= 0xE000 && $u <= 0xF6B0 );
printf " <a u=\"%04X\" ", $u;
if ( hex($big5) <= 0xFF ) {
printf "b=\"%02X\"/>\n", hex($big5);
}
else {
printf "b=\"%s %s\"/>\n", substr( $big5, 0, 2 ),
substr( $big5, 2, 2 );
}
}
print " <!-- Fallback mappings from Unicode to bytes -->\n";
for $unicode ( sort { hex($a) <=> hex($b) } keys %u2b ) {
$big5 = $u2b{$unicode};
next if defined( $b2u{$big5} ) and hex($unicode) == hex( $b2u{$big5} );
if ( $unicode eq "F900" ) {
print " <!-- CJK Compatibility Ideographs: U+F900 - U+FA6A.\n";
print
" These are included in CP950 (Unicode->Big5 direction only).\n";
print " Should we include this area in TW-BIG5 or not? -->\n";
}
printf " <fub u=\"%04X\" b=\"%s %s\"/>\n", hex($unicode),
substr( $big5, 0, 2 ), substr( $big5, 2, 2 );
}
my %fbu;
print " <!-- Fallback mappings from bytes to Unicode -->\n";
for $big5 ( sort { hex($a) <=> hex($b) } keys %b2u ) {
$unicode = $b2u{$big5};
if ( !defined( $u2b{$unicode} ) or hex($big5) != hex( $u2b{$unicode} ) )
{
$fbu{$unicode} = $big5;
}
}
for $unicode ( sort { hex($a) <=> hex($b) } keys %fbu ) {
$big5 = $fbu{$unicode};
printf " <fbu u=\"%04X\" b=\"%s %s\"/>\n", hex($unicode),
substr( $big5, 0, 2 ), substr( $big5, 2, 2 );
}
if ( $use_range and !$hkscs_mode ) {
print <<EOT;
<!-- Roundtrip-mappings that can be enumerated
Note: We can only use the <range> tag for TW-BIG5.
Big-5E and Big5-HKSCS have assigned characters in these areas,
and we will have to use the <a> and <fub> tags instead.
-->
<!-- User-Defined Area 1 (UDA1) -->
<range uFirst="E000" uLast="E310" bFirst="FA 40" bLast="FE FE" bMin="81 40" bMax="FE FE"/>
<!-- User-Defined Area 2 (UDA2) -->
<range uFirst="E311" uLast="EEB7" bFirst="8E 40" bLast="A0 FE" bMin="81 40" bMax="FE FE"/>
<!-- User-Defined Area 3 (UDA3) -->
<range uFirst="EEB8" uLast="F6B0" bFirst="81 40" bLast="8D FE" bMin="81 40" bMax="FE FE"/>
EOT
}
print <<EOT;
</assignments>
</characterMapping>
EOT
} # gen_charmapml()
sub gen_check_b2u() {
###########################################################################
#
# Codes for generating a raw table for verification and testing
#
# #print $u2b{"F7D1"}, "\n";
# print $b2u{$u2b{"F7D1"}}, "\n";
# print "FA59 -> U+", $b2u{"FA59"}, "\n";
foreach $big5 ( sort { hex($a) <=> hex($b) } keys %b2u ) {
$unicode = $b2u{$big5};
$big5 =~ s/^00//;
print "U+", $unicode, ": ", $big5, "\n";
}
}
sub gen_check_u2b() {
foreach $unicode ( sort { hex($a) <=> hex($b) } keys %u2b ) {
$big5 = $u2b{$unicode};
$big5 =~ s/^00//;
print "U+", $unicode, ": ", $big5, "\n";
}
}
###########################################################################
#
# Codes for generating hkscs.ut and hkscs.uf files for Mozilla
#
sub gen_mozilla_uf() {
# hkscs.uf
foreach $unicode ( sort keys %u2b ) {
$big5 = $u2b{$unicode};
my $b = hex($big5);
print "0x", uc($big5), "\t0x", uc($unicode), "\n"
unless ( $b >= 0xA140 and $b <= 0xC6A0 )
or ( $b >= 0xC940 and $b <= 0xF9D5 )
or ( $b < 0x8140 )
or ( hex($unicode) > 0xFFFF );
}
}
sub gen_mozilla_ut() {
# hkscs.ut
foreach $big5 ( sort keys %b2u ) {
my $b = hex($big5);
print "0x", uc($big5), "\t0x", uc( $b2u{$big5} ), "\n"
unless ( $b >= 0xA140 and $b <= 0xC6A0 )
or ( $b < 0x8140 )
or ( $b >= 0xC940 and $b <= 0xF9D5 );
}
}
###########################################################################
sub gen_glibc() {
##########################################################################
#
# Generate index for UCS4 to Big5-HKSCS conversion table
#
@index_array = ();
$mode = 0;
$count = 0;
for ( $uni = 0x81 ; $uni <= 0x2FFFF ; $uni++ ) {
$unicode = sprintf( "%04X", $uni );
# print " /* U+$unicode */\t" if $low % 4 == 0;
if ( defined( $u2b{$unicode} ) ) {
if ( $mode == 0 ) {
$range_start = $range_end = $uni;
# printf " { %7s, ", sprintf("0x%04X", $range_start);
$mode = 1;
}
else {
$range_end = $uni;
}
}
elsif ( $mode == 1 and ( $uni - $range_end ) >= 0x80 ) {
# Start a new range if the gap is 0x80 or larger
# printf "%7s, %5d },\n", sprintf("0x%04X", $range_end), $count;
push @index_array, [ ( $range_start, $range_end, $count ) ];
$count += $range_end - $range_start + 1;
$mode = 0;
}
}
#
# Note that $count and $range_end are used again as global variables
# below
#
###########################################################################
#
# Start generating real C code...
#
print <<'EOT';
/* Mapping tables for Big5-HKSCS handling.
Copyright (C) 1997, 1998, 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
Modified for Big5-HKSCS by Roger So <roger.so@sw-linux.com>, 2000.
Updated for HKSCS-2001 by James Su <suzhe@turbolinux.com.cn>
and Anthony Fok <anthony@thizlinux.com>, 2002
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <dlfcn.h>
#include <gconv.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
/* Table for Big5-HKSCS to UCS conversion.
Original comments by Roger So when he updated the tables for HKSCS-1999:
With HKSCS mappings 0x8140-0xA0FE and 0xFA40-0xFEFE added; more info:
http://www.digital21.gov.hk/eng/hkscs/index.html
- spacehunt 07/01/2000
The BIG5-HKSCS mapping tables are generated from 950.txt, big5-iso.txt
and big5cmp.txt using a Perl script while merging C source code from
other developers. A copy of the source Perl script is available at:
http://www.thizlinux.com/~anthony/hkscs/gen-glibc-big5hkscs.pl
http://people.debian.org/~foka/hkscs/gen-glibc-big5hkscs.pl
Revisions:
2001-10-30 made codec for Qt
2002-03-21 ported to glibc-2.2.5 and added HKSCS-2001
Todo:
Use a hash for characters beyond BMP to save space and make it
more efficient
- Anthony Fok <anthony@thizlinux.com> 21 Mar 2002
On behalf of ThizLinux Laboratory Ltd., Hong Kong SAR, China
*/
EOT
##########################################################################
#
# Generate Big5-HKSCS to Unicode conversion table
#
## print "Big5HKSCS to Unicode\n";
# for $high (0x81..0x8d, 0x8e..0xa0, 0xc6..0xc8, 0xf9, 0xfa..0xfe) {
$high_start = 0x88;
$high_end = 0xfe;
print "static const uint16_t big5_hkscs_to_ucs[";
print( ( $high_end - $high_start + 1 ) * 157 );
print "] =\n{\n";
for $high ( 0x88 .. 0xfe ) {
for $low ( 0x40 .. 0x7e, 0xa1 .. 0xfe ) {
if ( $low == 0x40 ) {
print "\n" unless $high == $high_start;
printf
"\t/* Big5-HKSCS 0x%02X40..0x%02X7E, 0x%02XA1..0x%02XFE */\n",
$high, $high, $high, $high;
}
elsif ( $low == 0xa1 ) {
print "\t\t";
}
$big5 = sprintf( "%02X%02X", $high, $low );
print "\t" if $low % 8 == 0;
if ( defined( $b2u{$big5} ) ) {
$unicode = $b2u{$big5};
print "0x", $unicode, ",";
}
else {
print "0x0000,"; # for glibc
}
print( ( $low % 8 == 7 or $low == 0x7e or $low == 0xfe )
? "\n"
: "\t" );
}
}
print "};\n\n";
##########################################################################
#
# Generate Unicode to Big5-HKSCS conversion table
#
print "static const unsigned char ucs4_to_big5_hkscs[$count][2] =\n{\n";
foreach $index (@index_array) {
( $start, $end ) = ( @$index[0], @$index[1] );
printf( " /* U+%04X */\t", $start ) if ( $start % 4 != 0 );
print "\t" x ( ( $start % 4 ) * 1.5 ) . " " x ( $start % 2 );
for ( $i = $start ; $i <= $end ; $i++ ) {
printf( " /* U+%04X */\t", $i ) if ( $i % 4 == 0 );
$unicode = sprintf( "%04X", $i );
if ( defined( $big5 = $u2b{$unicode} ) ) {
if ( $big5 =~ /^00/ ) {
print '"\x', substr( $big5, 2, 2 ), '\x00",';
}
else {
print '"\x', substr( $big5, 0, 2 ), '\x',
substr( $big5, 2, 2 ), '",';
}
}
else {
print '"\x00\x00",';
}
print( ( $i % 4 == 3 ) ? "\n" : " " ) unless $i == $end;
}
print $end == $range_end ? "\n" : "\n\n";
}
print "};\n\n";
###########################################################################
print <<EOT;
static struct
{
/* Note: We are going to split this table so that we can use
uint16_t for "from" and "to" again. Anthony Fok, 2002-03-21 */
uint32_t from;
uint32_t to;
uint32_t offset;
} from_ucs4_idx[] =
{
EOT
foreach $index (@index_array) {
printf " { %7s, %7s, %5d },\n", sprintf( "0x%04X", @$index[0] ),
sprintf( "0x%04X", @$index[1] ), @$index[2];
}
print "};\n\n";
#foreach $i (sort keys %b2u) {
# print $b2u{$i} . ' ';
#}
print <<'EOT';
/* Definitions used in the body of the `gconv' function. */
#define CHARSET_NAME "BIG5HKSCS//"
#define FROM_LOOP from_big5
#define TO_LOOP to_big5
#define DEFINE_INIT 1
#define DEFINE_FINI 1
#define MIN_NEEDED_FROM 1
#define MAX_NEEDED_FROM 2
#define MIN_NEEDED_TO 4
/* First define the conversion function from Big5-HKSCS to UCS4. */
#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
#define MAX_NEEDED_INPUT MAX_NEEDED_FROM
#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
uint32_t ch = *inptr; \
\
if (ch >= 0x81 && ch <= 0xfe) \
{ \
/* Two-byte character. First test whether the next character \
is also available. */ \
uint32_t ch2; \
int idx; \
\
if (__builtin_expect (inptr + 1 >= inend, 0)) \
{ \
/* The second character is not available. */ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
\
ch2 = inptr[1]; \
/* See whether the second byte is in the correct range. */ \
if ((ch2 >= 0x40 && ch2 <= 0x7e) || (ch2 >= 0xa1 && ch2 <= 0xfe)) \
{ \
if (ch >= 0x88) \
{ \
/* Look up the table */ \
idx = (ch - 0x88) * 157 + ch2 - (ch2 <= 0x7e ? 0x40 : 0x62); \
if ((ch = big5_hkscs_to_ucs[idx]) == 0) \
{ \
/* This is illegal. */ \
if (! ignore_errors_p ()) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
++inptr; \
++*irreversible; \
continue; \
} \
} \
else \
{ \
/* 0x81..0x87 in UDA3, currently maps linearly to PUA */ \
ch = (ch - 0x81) * 157 + ch2 - (ch2 <= 0x7e ? 0x40 : 0x62) \
+ 0xeeb8; \
} \
} \
else \
{ \
/* This is illegal. */ \
if (! ignore_errors_p ()) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
++inptr; \
++*irreversible; \
continue; \
} \
\
inptr += 2; \
} \
else if (__builtin_expect (ch, 0) == 0xff) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
else /* 0x00 to 0x80 */ \
++inptr; \
\
put32 (outptr, ch); \
outptr += 4; \
}
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
/* Next, define the other direction. */
#define MIN_NEEDED_INPUT MIN_NEEDED_TO
#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
#define LOOPFCT TO_LOOP
#define BODY \
{ \
uint32_t ch = get32 (inptr); \
const unsigned char *cp = ""; \
unsigned char b5ch[2] = "\0\0"; \
int i; \
\
for (i = 0; \
i < (int) (sizeof (from_ucs4_idx) / sizeof (from_ucs4_idx[0])); \
++i) \
{ \
if (ch < from_ucs4_idx[i].from) \
break; \
if (from_ucs4_idx[i].to >= ch) \
{ \
cp = ucs4_to_big5_hkscs[from_ucs4_idx[i].offset \
+ ch - from_ucs4_idx[i].from]; \
break; \
} \
} \
\
if (ch <= 0x80) \
{ \
b5ch[0] = ch; \
cp = b5ch; \
} \
\
if (cp[0] == '\0' && ch != 0) \
{ \
UNICODE_TAG_HANDLER (ch, 4); \
\
/* Illegal character. */ \
STANDARD_ERR_HANDLER (4); \
} \
else \
{ \
/* See whether there is enough room for the second byte we write. */ \
if (__builtin_expect (cp[1], '\1') != '\0' \
&& __builtin_expect (outptr + 1 >= outend, 0)) \
{ \
/* We have not enough room. */ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
\
*outptr++ = cp[0]; \
if (cp[1] != '\0') \
*outptr++ = cp[1]; \
} \
\
inptr += 4; \
}
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
/* Now define the toplevel functions. */
#include <iconv/skeleton.c>
EOT
}

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@ -1,55 +0,0 @@
/* -*- 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/. */
#include "nsBIG5HKSCSToUnicode.h"
#include "nsUCvTWDll.h"
#include "nsUCConstructors.h"
//----------------------------------------------------------------------
// Global functions and data [declaration]
static const uScanClassID g_BIG5HKSCSScanClassIDs[] = {
u1ByteCharset,
u2BytesCharset,
u2BytesCharset,
u2BytesCharset,
u2BytesCharset,
u2BytesCharset
};
static const uint16_t *g_BIG5HKSCSMappingTableSet [] ={
g_ASCIIMappingTable,
g_utBig5HKSCSMapping,
g_utBIG5Mapping,
g_utBig5HKSCSMapping,
g_utBIG5Mapping,
g_utBig5HKSCSMapping,
};
static const uRange g_BIG5HKSCSRanges[] = {
{ 0x00, 0x7F },
{ 0x81, 0xA0 },
{ 0xA1, 0xC6 },
{ 0xC6, 0xC8 },
{ 0xC9, 0xF9 },
{ 0xF9, 0xFE }
};
//----------------------------------------------------------------------
// Class nsBIG5HKSCSToUnicode [implementation]
nsresult
nsBIG5HKSCSToUnicodeConstructor(nsISupports *aOuter, REFNSIID aIID,
void **aResult)
{
return CreateMultiTableDecoder(6,
(const uRange* ) &g_BIG5HKSCSRanges,
(uScanClassID*) &g_BIG5HKSCSScanClassIDs,
(uMappingTable**) &g_BIG5HKSCSMappingTableSet,
1,
aOuter, aIID, aResult);
}

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@ -1,21 +0,0 @@
/* -*- 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/. */
#ifndef nsBIG5HKSCSToUnicode_h___
#define nsBIG5HKSCSToUnicode_h___
#include "nsISupports.h"
/**
* A character set converter from BIG5-HKSCS to Unicode.
*
* @created 02/Jul/2000
* @author Gavin Ho, Hong Kong Professional Services, Compaq Computer (Hong Kong) Ltd.
*/
nsresult
nsBIG5HKSCSToUnicodeConstructor(nsISupports *aOuter, REFNSIID aIID,
void **aResult);
#endif /* nsBIG5HKSCSToUnicode_h___ */

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@ -4,36 +4,163 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsBIG5ToUnicode.h"
#include "nsUCvTWDll.h"
#include "nsUCConstructors.h"
#include "mozilla/BinarySearch.h"
#include "mozilla/ArrayUtils.h"
//----------------------------------------------------------------------
// Global functions and data [declaration]
#include "nsBIG5DecoderData.h"
static const uScanClassID g_BIG5ScanClassIDs[] = {
u1ByteCharset,
u2BytesCharset
};
static const uint16_t *g_BIG5MappingTableSet [] ={
g_ASCIIMappingTable,
g_utBIG5Mapping
};
static const uRange g_BIG5Ranges[] = {
{ 0x00, 0x7F },
{ 0x81, 0xFE }
};
nsresult
nsBIG5ToUnicodeConstructor(nsISupports *aOuter, REFNSIID aIID,
void **aResult)
nsBIG5ToUnicode::nsBIG5ToUnicode()
: mPendingTrail(0)
, mBig5Lead(0)
{
return CreateMultiTableDecoder(2,
(const uRange* ) &g_BIG5Ranges,
(uScanClassID*) &g_BIG5ScanClassIDs,
(uMappingTable**) &g_BIG5MappingTableSet, 1,
aOuter, aIID, aResult);
}
NS_IMETHODIMP
nsBIG5ToUnicode::Convert(const char* aSrc,
int32_t* aSrcLength,
char16_t* aDest,
int32_t* aDestLength)
{
// We'll be doing comparisons as unsigned.
const uint8_t* in = reinterpret_cast<const uint8_t*>(aSrc);
const uint8_t* inEnd = in + *aSrcLength;
char16_t* out = aDest;
char16_t* outEnd = out + *aDestLength;
if (mPendingTrail) {
if (out == outEnd) {
*aSrcLength = 0;
*aDestLength = 0;
return NS_OK_UDEC_MOREOUTPUT;
}
*out++ = mPendingTrail;
mPendingTrail = 0;
}
for (;;) {
if (in == inEnd) {
*aSrcLength = in - reinterpret_cast<const uint8_t*>(aSrc);
*aDestLength = out - aDest;
return mBig5Lead ? NS_OK_UDEC_MOREINPUT : NS_OK;
}
if (out == outEnd) {
*aSrcLength = in - reinterpret_cast<const uint8_t*>(aSrc);
*aDestLength = out - aDest;
return NS_OK_UDEC_MOREOUTPUT;
}
uint8_t b = *in++;
if (!mBig5Lead) {
if (b <= 0x7F) {
*out++ = (char16_t)b;
continue;
}
if (b >= 0x81 && b <= 0xFE) {
mBig5Lead = b;
continue;
}
if (mErrBehavior == kOnError_Signal) {
--in;
*aSrcLength = in - reinterpret_cast<const uint8_t*>(aSrc);
*aDestLength = out - aDest;
return NS_ERROR_ILLEGAL_INPUT;
}
*out++ = 0xFFFD;
continue;
}
size_t lead = mBig5Lead;
mBig5Lead = 0;
size_t offset = (b < 0x7F) ? 0x40 : 0x62;
if ((b >= 0x40 && b <= 0x7E) || (b >= 0xA1 && b <= 0xFE)) {
size_t pointer = (lead - 0x81) * 157L + (b - offset);
char16_t outTrail;
switch (pointer) {
case 1133:
*out++ = 0x00CA;
outTrail = 0x0304;
break;
case 1135:
*out++ = 0x00CA;
outTrail = 0x030C;
break;
case 1164:
*out++ = 0x00EA;
outTrail = 0x0304;
break;
case 1166:
*out++ = 0x00EA;
outTrail = 0x030C;
break;
default:
char16_t lowBits = LowBits(pointer);
if (!lowBits) {
if (b <= 0x7F) {
// prepend byte to stream
// Always legal, since we've always just read a byte
// if we come here.
--in;
}
if (mErrBehavior == kOnError_Signal) {
--in;
*aSrcLength = in - reinterpret_cast<const uint8_t*>(aSrc);
*aDestLength = out - aDest;
return NS_ERROR_ILLEGAL_INPUT;
}
*out++ = 0xFFFD;
continue;
}
if (IsAstral(pointer)) {
uint32_t codePoint = uint32_t(lowBits) | 0x20000;
*out++ = char16_t(0xD7C0 + (codePoint >> 10));
outTrail = char16_t(0xDC00 + (codePoint & 0x3FF));
break;
}
*out++ = lowBits;
continue;
}
if (out == outEnd) {
mPendingTrail = outTrail;
*aSrcLength = in - reinterpret_cast<const uint8_t*>(aSrc);
*aDestLength = out - aDest;
return NS_OK_UDEC_MOREOUTPUT;
}
*out++ = outTrail;
continue;
}
// pointer is null
if (b <= 0x7F) {
// prepend byte to stream
// Always legal, since we've always just read a byte
// if we come here.
--in;
}
if (mErrBehavior == kOnError_Signal) {
// Moving in one past the start of aSrc is actually OK per API contract,
// since assigning -1 to aSrcLength means that we want the caller to
// record one U+FFFD and repush the same input buffer.
--in;
*aSrcLength = in - reinterpret_cast<const uint8_t*>(aSrc);
*aDestLength = out - aDest;
return NS_ERROR_ILLEGAL_INPUT;
}
*out++ = 0xFFFD;
continue;
}
}
NS_IMETHODIMP
nsBIG5ToUnicode::GetMaxLength(const char* aSrc,
int32_t aSrcLength,
int32_t* aDestLength)
{
// The length of the output in UTF-16 code units never exceeds the length
// of the input in bytes.
*aDestLength = aSrcLength + (mPendingTrail ? 1 : 0) + (mBig5Lead ? 1 : 0);
return NS_OK;
}
NS_IMETHODIMP
nsBIG5ToUnicode::Reset()
{
mPendingTrail = 0;
mBig5Lead = 0;
return NS_OK;
}

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@ -6,16 +6,37 @@
#ifndef nsBIG5ToUnicode_h___
#define nsBIG5ToUnicode_h___
#include "nsISupports.h"
#include "nsUCSupport.h"
/**
* A character set converter from BIG5 to Unicode.
*
* @created 06/Apr/1999
* @author Catalin Rotaru [CATA]
*/
nsresult
nsBIG5ToUnicodeConstructor(nsISupports *aOuter, REFNSIID aIID,
void **aResult);
#define NS_BIG5TOUNICODE_CID \
{ 0xefc323e1, 0xec62, 0x11d2, \
{ 0x8a, 0xac, 0x0, 0x60, 0x8, 0x11, 0xa8, 0x36 } }
#define NS_BIG5TOUNICODE_CONTRACTID \
"@mozilla.org/intl/unicode/decoder;1?charset=big5"
class nsBIG5ToUnicode : public nsBasicDecoderSupport
{
public:
nsBIG5ToUnicode();
NS_IMETHOD Convert(const char* aSrc,
int32_t* aSrcLength,
char16_t* aDest,
int32_t* aDestLength);
NS_IMETHOD GetMaxLength(const char* aSrc,
int32_t aSrcLength,
int32_t* aDestLength);
NS_IMETHOD Reset();
private:
static char16_t LowBits(size_t aPointer);
static bool IsAstral(size_t aPointer);
char16_t mPendingTrail;
uint8_t mBig5Lead;
};
#endif /* nsBIG5ToUnicode_h___ */

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@ -8,24 +8,9 @@
#include "nsISupports.h"
// Class ID for our BIG5ToUnicode charset converter
// {EFC323E1-EC62-11d2-8AAC-00600811A836}
#define NS_BIG5TOUNICODE_CID \
{ 0xefc323e1, 0xec62, 0x11d2, {0x8a, 0xac, 0x0, 0x60, 0x8, 0x11, 0xa8, 0x36}}
// Class ID for our UnicodeToBIG5 charset converter
// {EFC323E2-EC62-11d2-8AAC-00600811A836}
#define NS_UNICODETOBIG5_CID \
{ 0xefc323e2, 0xec62, 0x11d2, {0x8a, 0xac, 0x0, 0x60, 0x8, 0x11, 0xa8, 0x36}}
// Class ID for our BIG5HKSCSToUnicode charset converter
// {BA6151BB-EC62-11d2-8AAC-00600811A836}
#define NS_BIG5HKSCSTOUNICODE_CID \
{ 0xba6151bb, 0xec62, 0x11d2, {0x8a, 0xac, 0x0, 0x60, 0x8, 0x11, 0xa8, 0x36}}
// Class ID for our UnicodeToBIG5HKSCS charset converter
// {BA6151BC-EC62-11d2-8AAC-00600811A836}
#define NS_UNICODETOBIG5HKSCS_CID \
{ 0xba6151bc, 0xec62, 0x11d2, {0x8a, 0xac, 0x0, 0x60, 0x8, 0x11, 0xa8, 0x36}}
#endif /* nsUCvTWCID_h___ */

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@ -7,9 +7,6 @@
#define nsUCvTWDll_h_
extern const uint16_t g_ufBig5Mapping[];
extern const uint16_t g_utBIG5Mapping[];
extern const uint16_t g_ASCIIMappingTable[];
extern const uint16_t g_ufBig5HKSCSMapping[];
extern const uint16_t g_utBig5HKSCSMapping[];
#endif /* nsUCvTWDll_h_ */

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@ -1,36 +0,0 @@
/* -*- 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/. */
#include "nsUnicodeToBIG5HKSCS.h"
#include "nsUCvTWDll.h"
#include "nsUCConstructors.h"
//----------------------------------------------------------------------
// Global functions and data [declaration]
nsresult
nsUnicodeToBIG5HKSCSConstructor(nsISupports *aOuter, REFNSIID aIID,
void **aResult)
{
static const uint16_t *g_Big5HKSCSMappingTable[] = {
g_ASCIIMappingTable,
g_ufBig5Mapping,
g_ufBig5HKSCSMapping
};
static const uScanClassID g_Big5HKSCSScanClassIDs[] = {
u1ByteCharset,
u2BytesCharset,
u2BytesCharset
};
return CreateMultiTableEncoder(3,
(uScanClassID*) &g_Big5HKSCSScanClassIDs,
(uMappingTable**) &g_Big5HKSCSMappingTable,
2 /* max length = src * 2 */,
aOuter, aIID, aResult);
}

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@ -1,21 +0,0 @@
/* -*- 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/. */
#ifndef nsUnicodeToBIG5HKSCS_h___
#define nsUnicodeToBIG5HKSCS_h___
#include "nsISupports.h"
/**
* A character set converter from Unicode to BIG5-HKSCS.
*
* @created 02/Jul/2000
* @author Gavin Ho, Hong Kong Professional Services, Compaq Computer (Hong Kong) Ltd.
*/
nsresult
nsUnicodeToBIG5HKSCSConstructor(nsISupports *aOuter, REFNSIID aIID,
void **aResult);
#endif /* nsUnicodeToBIG5HKSCS_h___ */