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tdelibs/tdehtml/misc/decoder.cpp

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/*
This file is part of the KDE libraries
Copyright (C) 1999 Lars Knoll (knoll@kde.org)
Copyright (C) 2003 Dirk Mueller (mueller@kde.org)
Copyright (C) 2003 Apple Computer, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
//----------------------------------------------------------------------------
//
// KDE HTML Widget -- decoder for input stream
#undef DECODE_DEBUG
//#define DECODE_DEBUG
#include <assert.h>
#include "decoder.h"
#include "guess_ja.h"
using namespace tdehtml;
#include "htmlhashes.h"
#include <tqregexp.h>
#include <tqtextcodec.h>
#include <kglobal.h>
#include <kcharsets.h>
#include <ctype.h>
#include <kdebug.h>
#include <klocale.h>
Decoder::Decoder()
{
// latin1
m_codec = TQTextCodec::codecForMib(4);
m_decoder = m_codec->makeDecoder();
enc = 0;
m_type = DefaultEncoding;
body = false;
beginning = true;
visualRTL = false;
m_autoDetectLanguage = SemiautomaticDetection;
kc = NULL;
}
Decoder::~Decoder()
{
delete m_decoder;
if (kc)
delete kc;
}
void Decoder::setEncoding(const char *_encoding, EncodingType type)
{
#ifdef DECODE_DEBUG
kdDebug(6005) << "setEncoding " << _encoding << " " << type << endl;
#endif
enc = _encoding;
#ifdef DECODE_DEBUG
kdDebug(6005) << "old encoding is:" << m_codec->name() << endl;
#endif
enc = enc.lower();
#ifdef DECODE_DEBUG
kdDebug(6005) << "requesting:" << enc << endl;
#endif
if(enc.isNull() || enc.isEmpty())
return;
#ifdef APPLE_CHANGES
TQTextCodec *codec = (type == EncodingFromMetaTag || type == EncodingFromXMLHeader)
? TQTextCodec::codecForNameEightBitOnly(enc)
: TQTextCodec::codecForName(enc);
if (codec) {
enc = codec->name();
visualRTL = codec->usesVisualOrdering();
}
#else
if(enc == "visual") // hebrew visually ordered
enc = "iso8859-8";
bool b;
TQTextCodec *codec = TDEGlobal::charsets()->codecForName(enc, b);
if (!b)
codec = 0;
if (type == EncodingFromMetaTag || type == EncodingFromXMLHeader) {
//Sometimes the codec specified is absurd, i.e. UTF-16 despite
//us decoding a meta tag as ASCII. In that case, ignore it.
if (codec &&
(codec->mibEnum() == 1000)) //UTF16 or similar.
codec = 0;
}
if (codec && codec->mibEnum() == 11) {
//We do NOT want to use Qt's TQHebrewCodec, since it tries to reorder itself.
codec = TQTextCodec::codecForName("iso8859-8-i");
// visually ordered unless one of the following
if( !(enc == "iso-8859-8-i" || enc == "iso_8859-8-i"
|| enc == "csiso88598i" || enc == "logical") )
visualRTL = true;
}
#endif
if( codec ) { // in case the codec didn't exist, we keep the old one (fixes some sites specifying invalid codecs)
m_codec = codec;
m_type = type;
delete m_decoder;
m_decoder = m_codec->makeDecoder();
}
#ifdef DECODE_DEBUG
kdDebug(6005) << "Decoder::encoding used is" << m_codec->name() << endl;
#endif
}
const char *Decoder::encoding() const
{
return enc;
}
// Other browsers allow comments in the head section, so we need to also.
// It's important not to look for tags inside the comments.
static void skipComment(const char *&ptr, const char *pEnd)
{
const char *p = ptr;
// Allow <!-->; other browsers do.
if (*p == '>') {
p++;
} else {
while (p != pEnd) {
if (*p == '-') {
// This is the real end of comment, "-->".
if (p[1] == '-' && p[2] == '>') {
p += 3;
break;
}
// This is the incorrect end of comment that other browsers allow, "--!>".
if (p[1] == '-' && p[2] == '!' && p[3] == '>') {
p += 4;
break;
}
}
p++;
}
}
ptr = p;
}
// Returns the position of the encoding string.
static int findXMLEncoding(const TQCString &str, int &encodingLength)
{
int len = str.length();
int pos = str.find("encoding");
if (pos == -1)
return -1;
pos += 8;
// Skip spaces and stray control characters.
while (pos < len && str[pos] <= ' ')
++pos;
//Bail out if nothing after
if (pos >= len)
return -1;
// Skip equals sign.
if (str[pos] != '=')
return -1;
++pos;
// Skip spaces and stray control characters.
while (pos < len && str[pos] <= ' ')
++pos;
//Bail out if nothing after
if (pos >= len)
return -1;
// Skip quotation mark.
char quoteMark = str[pos];
if (quoteMark != '"' && quoteMark != '\'')
return -1;
++pos;
// Find the trailing quotation mark.
int end = pos;
while (end < len && str[end] != quoteMark)
++end;
if (end >= len)
return -1;
encodingLength = end - pos;
return pos;
}
TQString Decoder::decode(const char *data, int len)
{
// Check for UTF-16 or UTF-8 BOM mark at the beginning, which is a sure sign of a Unicode encoding.
int bufferLength = buffer.length();
const int maximumBOMLength = 10;
if (beginning && bufferLength + len >= maximumBOMLength) {
// If the user has chosen utf16 we still need to auto-detect the endianness
if ((m_type != UserChosenEncoding) || (m_codec->mibEnum() == 1000)) {
// Extract the first three bytes.
// Handle the case where some of bytes are already in the buffer.
const uchar *udata = (const uchar *)data;
uchar c1 = bufferLength >= 1 ? (uchar)buffer[0] : *udata++;
uchar c2 = bufferLength >= 2 ? (uchar)buffer[1] : *udata++;
uchar c3 = bufferLength >= 3 ? (uchar)buffer[2] : *udata++;
// Check for the BOM
const char *autoDetectedEncoding;
if ((c1 == 0xFE && c2 == 0xFF) || (c1 == 0xFF && c2 == 0xFE)) {
autoDetectedEncoding = "ISO-10646-UCS-2";
} else if (c1 == 0xEF && c2 == 0xBB && c3 == 0xBF) {
autoDetectedEncoding = "UTF-8";
} else if (c1 == 0x00 || c2 == 0x00) {
uchar c4 = bufferLength >= 4 ? (uchar)buffer[3] : *udata++;
uchar c5 = bufferLength >= 5 ? (uchar)buffer[4] : *udata++;
uchar c6 = bufferLength >= 6 ? (uchar)buffer[5] : *udata++;
uchar c7 = bufferLength >= 7 ? (uchar)buffer[6] : *udata++;
uchar c8 = bufferLength >= 8 ? (uchar)buffer[7] : *udata++;
uchar c9 = bufferLength >= 9 ? (uchar)buffer[8] : *udata++;
uchar c10 = bufferLength >= 10 ? (uchar)buffer[9] : *udata++;
int nul_count_even = (c2 != 0) + (c4 != 0) + (c6 != 0) + (c8 != 0) + (c10 != 0);
int nul_count_odd = (c1 != 0) + (c3 != 0) + (c5 != 0) + (c7 != 0) + (c9 != 0);
if ((nul_count_even == 0 && nul_count_odd == 5) ||
(nul_count_even == 5 && nul_count_odd == 0))
autoDetectedEncoding = "ISO-10646-UCS-2";
else
autoDetectedEncoding = 0;
} else {
autoDetectedEncoding = 0;
}
// If we found a BOM, use the encoding it implies.
if (autoDetectedEncoding != 0) {
m_type = AutoDetectedEncoding;
m_codec = TQTextCodec::codecForName(autoDetectedEncoding);
assert(m_codec);
enc = m_codec->name();
delete m_decoder;
m_decoder = m_codec->makeDecoder();
if (m_codec->mibEnum() == 1000 && c2 == 0x00)
{
// utf16LE, we need to put the decoder in LE mode
char reverseUtf16[3] = {0xFF, 0xFE, 0x00};
m_decoder->toUnicode(reverseUtf16, 2);
}
}
}
beginning = false;
}
// this is not completely efficient, since the function might go
// through the html head several times...
bool lookForMetaTag = m_type == DefaultEncoding && !body;
if (lookForMetaTag) {
#ifdef DECODE_DEBUG
kdDebug(6005) << "looking for charset definition" << endl;
#endif
{ // extra level of braces to keep indenting matching original for better diff'ing
#ifdef APPLE_CHANGES
buffer.append(data, len);
#else
if(m_codec->mibEnum() != 1000) { // utf16
// replace '\0' by spaces, for buggy pages
char *d = const_cast<char *>(data);
int i = len - 1;
while(i >= 0) {
if(d[i] == 0) d[i] = ' ';
i--;
}
}
buffer += TQCString(data, len+1);
#endif
// we still don't have an encoding, and are in the head
// the following tags are allowed in <head>:
// SCRIPT|STYLE|META|LINK|OBJECT|TITLE|BASE
int invalid = 0; // invalid head tag count
#ifdef APPLE_CHANGES
const char *ptr = buffer.latin1();
const char *pEnd = ptr + buffer.length();
#else
const char *ptr = buffer.data();
const char *pEnd = ptr + buffer.length();
#endif
while(ptr != pEnd)
{
if(*ptr == '<') {
bool end = false;
ptr++;
// Handle comments.
if (ptr[0] == '!' && ptr[1] == '-' && ptr[2] == '-') {
ptr += 3;
skipComment(ptr, pEnd);
continue;
}
// Handle XML header, which can have encoding in it.
if (ptr[0] == '?' && ptr[1] == 'x' && ptr[2] == 'm' && ptr[3] == 'l') {
const char *end = ptr;
while (*end != '>' && *end != '\0') end++;
if (*end == '\0')
break;
TQCString str(ptr, end - ptr + 1); //+1 as it must include the \0 terminator
int len;
int pos = findXMLEncoding(str, len);
if (pos != -1) {
setEncoding(str.mid(pos, len), EncodingFromXMLHeader);
if (m_type == EncodingFromXMLHeader)
goto found;
}
}
if(*ptr == '/') ptr++, end=true;
char tmp[20];
int len = 0;
while (
((*ptr >= 'a') && (*ptr <= 'z') ||
(*ptr >= 'A') && (*ptr <= 'Z') ||
(*ptr >= '0') && (*ptr <= '9'))
&& len < 19 )
{
tmp[len] = tolower( *ptr );
ptr++;
len++;
}
tmp[len] = 0;
int id = tdehtml::getTagID(tmp, len);
if(end) id += ID_CLOSE_TAG;
switch( id ) {
case ID_META:
{
// found a meta tag...
//ptr += 5;
const char * end = ptr;
while(*end != '>' && *end != '\0') end++;
if ( *end == '\0' ) break;
TQCString str( ptr, (end-ptr)+1);
str = str.lower();
int pos = 0;
//if( (pos = str.find("http-equiv", pos)) == -1) break;
//if( (pos = str.find("content-type", pos)) == -1) break;
while( pos < ( int ) str.length() ) {
if( (pos = str.find("charset", pos)) == -1) break;
pos += 7;
// skip whitespace..
while( pos < (int)str.length() && str[pos] <= ' ' ) pos++;
if ( pos == ( int )str.length()) break;
if ( str[pos++] != '=' ) continue;
while ( pos < ( int )str.length() &&
( str[pos] <= ' ' ) || str[pos] == '=' || str[pos] == '"' || str[pos] == '\'')
pos++;
// end ?
if ( pos == ( int )str.length() ) break;
uint endpos = pos;
while( endpos < str.length() &&
(str[endpos] != ' ' && str[endpos] != '"' && str[endpos] != '\''
&& str[endpos] != ';' && str[endpos] != '>') )
endpos++;
enc = str.mid(pos, endpos-pos);
#ifdef DECODE_DEBUG
kdDebug( 6005 ) << "Decoder: found charset: " << enc.data() << endl;
#endif
setEncoding(enc, EncodingFromMetaTag);
if( m_type == EncodingFromMetaTag ) goto found;
if ( endpos >= str.length() || str[endpos] == '/' || str[endpos] == '>' ) break;
pos = endpos + 1;
}
}
case ID_SCRIPT:
case (ID_SCRIPT+ID_CLOSE_TAG):
case ID_NOSCRIPT:
case (ID_NOSCRIPT+ID_CLOSE_TAG):
case ID_STYLE:
case (ID_STYLE+ID_CLOSE_TAG):
case ID_LINK:
case (ID_LINK+ID_CLOSE_TAG):
case ID_OBJECT:
case (ID_OBJECT+ID_CLOSE_TAG):
case ID_TITLE:
case (ID_TITLE+ID_CLOSE_TAG):
case ID_BASE:
case (ID_BASE+ID_CLOSE_TAG):
case ID_HTML:
case ID_HEAD:
case 0:
case (0 + ID_CLOSE_TAG ):
break;
case ID_BODY:
case (ID_HEAD+ID_CLOSE_TAG):
body = true;
#ifdef DECODE_DEBUG
kdDebug( 6005 ) << "Decoder: no charset found. Id=" << id << endl;
#endif
goto found;
default:
// Invalid tag in head. Let's be a little tolerant
invalid++;
if (invalid > 2) {
body = true;
#ifdef DECODE_DEBUG
kdDebug( 6005 ) << "Decoder: no charset found. Id=" << id << endl;
#endif
goto found;
}
}
}
else
ptr++;
}
if (invalid > 0) {
body = true;
goto found;
}
return TQString::null;
}
}
found:
if (m_type == DefaultEncoding)
{
#ifdef DECODE_DEBUG
kdDebug( 6005 ) << "Decoder: use auto-detect (" << strlen(data) << ")" << endl;
#endif
switch ( m_autoDetectLanguage) {
case Decoder::Arabic:
enc = automaticDetectionForArabic( (const unsigned char*) data, len );
break;
case Decoder::Baltic:
enc = automaticDetectionForBaltic( (const unsigned char*) data, len );
break;
case Decoder::CentralEuropean:
enc = automaticDetectionForCentralEuropean( (const unsigned char*) data, len );
break;
case Decoder::Russian:
case Decoder::Ukrainian:
enc = automaticDetectionForCyrillic( (const unsigned char*) data, len, m_autoDetectLanguage );
break;
case Decoder::Greek:
enc = automaticDetectionForGreek( (const unsigned char*) data, len );
break;
case Decoder::Hebrew:
enc = automaticDetectionForHebrew( (const unsigned char*) data, len );
break;
case Decoder::Japanese:
enc = automaticDetectionForJapanese( (const unsigned char*) data, len );
break;
case Decoder::Turkish:
enc = automaticDetectionForTurkish( (const unsigned char*) data, len );
break;
case Decoder::WesternEuropean:
enc = automaticDetectionForWesternEuropean( (const unsigned char*) data, len );
break;
case Decoder::SemiautomaticDetection:
case Decoder::Chinese:
case Decoder::Korean:
case Decoder::Thai:
case Decoder::Unicode:
// huh. somethings broken in this code ### FIXME
enc = 0; //Reset invalid codec we tried, so we get back to latin1 fallback.
break;
}
#ifdef DECODE_DEBUG
kdDebug( 6005 ) << "Decoder: auto detect encoding is " << enc.data() << endl;
#endif
if ( !enc.isEmpty() )
setEncoding( enc.data(), AutoDetectedEncoding);
}
// if we still haven't found an encoding latin1 will be used...
// this is according to HTML4.0 specs
if (!m_codec)
{
if(enc.isEmpty()) enc = "iso8859-1";
m_codec = TQTextCodec::codecForName(enc);
// be sure not to crash
if(!m_codec) {
m_codec = TQTextCodec::codecForMib(4);
enc = "iso8859-1";
}
delete m_decoder;
m_decoder = m_codec->makeDecoder();
}
TQString out;
if(!buffer.isEmpty() && enc != "ISO-10646-UCS-2") {
out = m_decoder->toUnicode(buffer, buffer.length());
buffer = "";
} else {
if(m_codec->mibEnum() != 1000) // utf16
{
// ### hack for a bug in TQTextCodec. It cut's the input stream
// in case there are \0 in it. ZDNET has them inside... :-(
char *d = const_cast<char *>(data);
int i = len - 1;
while(i >= 0) {
if(*(d+i) == 0) *(d+i) = ' ';
i--;
}
}
out = m_decoder->toUnicode(data, len);
}
return out;
}
TQString Decoder::flush() const
{
return m_decoder->toUnicode(buffer, buffer.length());
}
TQCString Decoder::automaticDetectionForArabic( const unsigned char* ptr, int size )
{
for ( int i = 0; i < size; ++i ) {
if ( ( ptr[ i ] >= 0x80 && ptr[ i ] <= 0x9F ) || ptr[ i ] == 0xA1 || ptr[ i ] == 0xA2 || ptr[ i ] == 0xA3
|| ( ptr[ i ] >= 0xA5 && ptr[ i ] <= 0xAB ) || ( ptr[ i ] >= 0xAE && ptr[ i ] <= 0xBA )
|| ptr[ i ] == 0xBC || ptr[ i ] == 0xBD || ptr[ i ] == 0xBE || ptr[ i ] == 0xC0
|| ( ptr[ i ] >= 0xDB && ptr[ i ] <= 0xDF ) || ( ptr[ i ] >= 0xF3 ) ) {
return "cp1256";
}
}
return "iso-8859-6";
}
TQCString Decoder::automaticDetectionForBaltic( const unsigned char* ptr, int size )
{
for ( int i = 0; i < size; ++i ) {
if ( ( ptr[ i ] >= 0x80 && ptr[ i ] <= 0x9E ) )
return "cp1257";
if ( ptr[ i ] == 0xA1 || ptr[ i ] == 0xA5 )
return "iso-8859-13";
}
return "iso-8859-13";
}
TQCString Decoder::automaticDetectionForCentralEuropean(const unsigned char* ptr, int size )
{
TQCString charset = TQCString();
for ( int i = 0; i < size; ++i ) {
if ( ptr[ i ] >= 0x80 && ptr[ i ] <= 0x9F ) {
if ( ptr[ i ] == 0x81 || ptr[ i ] == 0x83 || ptr[ i ] == 0x90 || ptr[ i ] == 0x98 )
return "ibm852";
if ( i + 1 > size )
return "cp1250";
else { // maybe ibm852 ?
charset = "cp1250";
continue;
}
}
if ( ptr[ i ] == 0xA5 || ptr[ i ] == 0xAE || ptr[ i ] == 0xBE || ptr[ i ] == 0xC3 || ptr[ i ] == 0xD0 || ptr[ i ] == 0xE3 || ptr[ i ] == 0xF0 ) {
if ( i + 1 > size )
return "iso-8859-2";
else { // maybe ibm852 ?
if ( charset.isNull() )
charset = "iso-8859-2";
continue;
}
}
}
if ( charset.isNull() )
charset = "iso-8859-3";
return charset.data();
}
TQCString Decoder::automaticDetectionForCyrillic( const unsigned char* ptr, int size, AutoDetectLanguage _language )
{
int koi_st=0;
int cp1251_st=0;
// int koi_na=0;
// int cp1251_na=0;
int koi_o_capital=0;
int koi_o=0;
int cp1251_o_capital=0;
int cp1251_o=0;
int koi_a_capital=0;
int koi_a=0;
int cp1251_a_capital=0;
int cp1251_a=0;
int koi_i_capital=0;
int koi_i=0;
int cp1251_i_capital=0;
int cp1251_i=0;
int cp1251_small_range=0;
int koi_small_range=0;
int ibm866_small_range=0;
int i;
for (i=1; (i<size) && (cp1251_small_range+koi_small_range<1000) ;++i)
{
if (ptr[i]>0xdf)
{
++cp1251_small_range;
if (ptr[i]==0xee)//small o
++cp1251_o;
else if (ptr[i]==0xe0)//small a
++cp1251_a;
else if (ptr[i]==0xe8)//small i
++cp1251_i;
else if (ptr[i]==0xf2 && ptr[i-1]==0xf1)//small st
++cp1251_st;
else if (ptr[i]==0xef)
++koi_o_capital;
else if (ptr[i]==0xe1)
++koi_a_capital;
else if (ptr[i]==0xe9)
++koi_i_capital;
}
else if (ptr[i]>0xbf)
{
++koi_small_range;
if (ptr[i]==0xcf)//small o
++koi_o;
else if (ptr[i]==0xc1)//small a
++koi_a;
else if (ptr[i]==0xc9)//small i
++koi_i;
else if (ptr[i]==0xd4 && ptr[i-1]==0xd3)//small st
++koi_st;
else if (ptr[i]==0xce)
++cp1251_o_capital;
else if (ptr[i]==0xc0)
++cp1251_a_capital;
else if (ptr[i]==0xc8)
++cp1251_i_capital;
}
else if (ptr[i]>0x9f && ptr[i]<0xaf) //first 16 letterz is 60%
++ibm866_small_range;
}
if (ibm866_small_range>cp1251_small_range+koi_small_range)
return "ibm866"; //hehe this is a rare case :)
TQCString koi_string = "koi8-u";
TQCString cp1251_string = "cp1251";
if (cp1251_st==0 && koi_st>1)
return koi_string;
if (koi_st==0 && cp1251_st>1)
return cp1251_string;
if (cp1251_st>0 && koi_st>0)
{
if (cp1251_st/koi_st>2)
return cp1251_string;
else if (koi_st/cp1251_st>2)
return koi_string;
}
if (cp1251_a>koi_a && cp1251_o>koi_o && cp1251_i>koi_i)
return cp1251_string;
if (koi_a>cp1251_a && koi_o>cp1251_o && koi_i>cp1251_i)
return koi_string;
if (cp1251_a_capital>koi_a_capital && cp1251_o_capital>koi_o_capital && cp1251_i_capital>koi_i_capital)
return cp1251_string;
if (koi_a_capital>cp1251_a_capital && koi_o_capital>cp1251_o_capital && koi_i_capital>cp1251_i_capital)
return koi_string;
//fallback...
if (cp1251_small_range>koi_small_range)
return cp1251_string;
else
return koi_string;
}
TQCString Decoder::automaticDetectionForGreek( const unsigned char* ptr, int size )
{
for ( int i = 0; i < size; ++i ) {
if ( ptr[ i ] == 0x80 || ( ptr[ i ] >= 0x82 && ptr[ i ] <= 0x87 ) || ptr[ i ] == 0x89 || ptr[ i ] == 0x8B
|| ( ptr[ i ] >= 0x91 && ptr[ i ] <= 0x97 ) || ptr[ i ] == 0x99 || ptr[ i ] == 0x9B || ptr[ i ] == 0xA4
|| ptr[ i ] == 0xA5 || ptr[ i ] == 0xAE ) {
return "cp1253";
}
}
return "iso-8859-7";
}
TQCString Decoder::automaticDetectionForHebrew( const unsigned char* ptr, int size )
{
for ( int i = 0; i < size; ++i ) {
if ( ptr[ i ] == 0x80 || ( ptr[ i ] >= 0x82 && ptr[ i ] <= 0x89 ) || ptr[ i ] == 0x8B
|| ( ptr[ i ] >= 0x91 && ptr[ i ] <= 0x99 ) || ptr[ i ] == 0x9B || ptr[ i ] == 0xA1 || ( ptr[ i ] >= 0xBF && ptr[ i ] <= 0xC9 )
|| ( ptr[ i ] >= 0xCB && ptr[ i ] <= 0xD8 ) ) {
return "cp1255";
}
if ( ptr[ i ] == 0xDF )
return "iso-8859-8-i";
}
return "iso-8859-8-i";
}
TQCString Decoder::automaticDetectionForJapanese( const unsigned char* ptr, int size )
{
if (!kc)
kc = new JapaneseCode();
switch ( kc->guess_jp( (const char*)ptr, size ) ) {
case JapaneseCode::JIS:
return "jis7";
case JapaneseCode::EUC:
return "eucjp";
case JapaneseCode::SJIS:
return "sjis";
case JapaneseCode::UTF8:
return "utf8";
default:
break;
}
return "";
}
TQCString Decoder::automaticDetectionForTurkish( const unsigned char* ptr, int size )
{
for ( int i = 0; i < size; ++i ) {
if ( ptr[ i ] == 0x80 || ( ptr[ i ] >= 0x82 && ptr[ i ] <= 0x8C ) || ( ptr[ i ] >= 0x91 && ptr[ i ] <= 0x9C ) || ptr[ i ] == 0x9F ) {
return "cp1254";
}
}
return "iso-8859-9";
}
TQCString Decoder::automaticDetectionForWesternEuropean( const unsigned char* ptr, int size )
{
for ( int i = 0; i < size; ++i ) {
if ( ptr[ i ] >= 0x80 && ptr[ i ] <= 0x9F )
return "cp1252";
}
return "iso-8859-1"; //"iso-8859-15"; Which better at default ?
}
// -----------------------------------------------------------------------------
#undef DECODE_DEBUG
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