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-rw-r--r--lib/libchmfile/libchmfileimpl.cpp1271
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diff --git a/lib/libchmfile/libchmfileimpl.cpp b/lib/libchmfile/libchmfileimpl.cpp
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+++ b/lib/libchmfile/libchmfileimpl.cpp
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+/***************************************************************************
+ * Copyright (C) 2004-2007 by Georgy Yunaev, [email protected] *
+ * Portions Copyright (C) 2003 Razvan Cojocaru <[email protected]> *
+ * Please do not use email address above for bug reports; see *
+ * the README file *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program 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 General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
+ ***************************************************************************/
+
+#include <sys/types.h>
+
+#include <qcursor.h>
+#include <qfile.h>
+#include <qapplication.h>
+
+#include "config.h"
+#include "chm_lib.h"
+#include "bitfiddle.h"
+#include "libchmfile.h"
+#include "libchmurlfactory.h"
+#include "libchmfileimpl.h"
+
+// Big-enough buffer size for use with various routines.
+#define BUF_SIZE 4096
+#define COMMON_BUF_LEN 1025
+
+#define TOPICS_ENTRY_LEN 16
+#define URLTBL_ENTRY_LEN 12
+
+//#define DEBUGPARSER(A) qDebug A
+#define DEBUGPARSER(A) ;
+
+class KCHMShowWaitCursor
+{
+ public:
+ KCHMShowWaitCursor () { QApplication::setOverrideCursor( QCursor(Qt::WaitCursor) ); }
+ ~KCHMShowWaitCursor () { QApplication::restoreOverrideCursor(); }
+};
+
+
+LCHMFileImpl::LCHMFileImpl( )
+{
+ m_chmFile = NULL;
+ m_home = m_filename = m_home = m_topicsFile = m_indexFile = m_font = QString::null;
+ m_entityDecodeMap.clear();
+ m_textCodec = 0;
+ m_textCodecForSpecialFiles = 0;
+ m_detectedLCID = 0;
+ m_currentEncoding = 0;
+}
+
+
+LCHMFileImpl::~ LCHMFileImpl( )
+{
+ closeAll();
+}
+
+
+bool LCHMFileImpl::loadFile( const QString & archiveName )
+{
+ QString filename;
+
+ // If the file has a file:// prefix, remove it
+ if ( archiveName.startsWith( "file://" ) )
+ filename = archiveName.mid( 7 ); // strip it
+ else
+ filename = archiveName;
+
+ if( m_chmFile )
+ closeAll();
+
+ m_chmFile = chm_open( QFile::encodeName(filename) );
+
+ if ( m_chmFile == NULL )
+ return false;
+
+ m_filename = filename;
+
+ // Reset encoding
+ m_textCodec = 0;
+ m_textCodecForSpecialFiles = 0;
+ m_currentEncoding = 0;
+
+ // Get information from /#WINDOWS and /#SYSTEM files (encoding, title, context file and so)
+ // and guess the encoding
+ getInfoFromWindows();
+ getInfoFromSystem();
+ guessTextEncoding();
+
+ // Check whether the search tables are present
+ if ( ResolveObject("/#TOPICS", &m_chmTOPICS)
+ && ResolveObject("/#STRINGS", &m_chmSTRINGS)
+ && ResolveObject("/#URLTBL", &m_chmURLTBL)
+ && ResolveObject("/#URLSTR", &m_chmURLSTR) )
+ {
+ m_lookupTablesValid = true;
+ fillTopicsUrlMap();
+ }
+ else
+ m_lookupTablesValid = false;
+
+ if ( m_lookupTablesValid && ResolveObject ("/$FIftiMain", &m_chmFIftiMain) )
+ m_searchAvailable = true;
+ else
+ m_searchAvailable = false;
+
+ return true;
+}
+
+
+void LCHMFileImpl::closeAll( )
+{
+ if ( m_chmFile == NULL )
+ return;
+
+ chm_close( m_chmFile );
+
+ m_chmFile = NULL;
+ m_home = m_filename = m_home = m_topicsFile = m_indexFile = m_font = QString::null;
+ m_entityDecodeMap.clear();
+ m_textCodec = 0;
+ m_textCodecForSpecialFiles = 0;
+ m_detectedLCID = 0;
+ m_currentEncoding = 0;
+}
+
+
+QString LCHMFileImpl::decodeEntity( const QString & entity )
+{
+ // Set up m_entityDecodeMap characters according to current textCodec
+ if ( m_entityDecodeMap.isEmpty() )
+ {
+ m_entityDecodeMap["AElig"] = encodeWithCurrentCodec ("\306"); // capital AE diphthong (ligature)
+ m_entityDecodeMap["Aacute"] = encodeWithCurrentCodec ("\301"); // capital A, acute accent
+ m_entityDecodeMap["Acirc"] = encodeWithCurrentCodec ("\302"); // capital A, circumflex accent
+ m_entityDecodeMap["Agrave"] = encodeWithCurrentCodec ("\300"); // capital A, grave accent
+ m_entityDecodeMap["Aring"] = encodeWithCurrentCodec ("\305"); // capital A, ring
+ m_entityDecodeMap["Atilde"] = encodeWithCurrentCodec ("\303"); // capital A, tilde
+ m_entityDecodeMap["Auml"] = encodeWithCurrentCodec ("\304"); // capital A, dieresis or umlaut mark
+ m_entityDecodeMap["Ccedil"] = encodeWithCurrentCodec ("\307"); // capital C, cedilla
+ m_entityDecodeMap["Dstrok"] = encodeWithCurrentCodec ("\320"); // whatever
+ m_entityDecodeMap["ETH"] = encodeWithCurrentCodec ("\320"); // capital Eth, Icelandic
+ m_entityDecodeMap["Eacute"] = encodeWithCurrentCodec ("\311"); // capital E, acute accent
+ m_entityDecodeMap["Ecirc"] = encodeWithCurrentCodec ("\312"); // capital E, circumflex accent
+ m_entityDecodeMap["Egrave"] = encodeWithCurrentCodec ("\310"); // capital E, grave accent
+ m_entityDecodeMap["Euml"] = encodeWithCurrentCodec ("\313"); // capital E, dieresis or umlaut mark
+ m_entityDecodeMap["Iacute"] = encodeWithCurrentCodec ("\315"); // capital I, acute accent
+ m_entityDecodeMap["Icirc"] = encodeWithCurrentCodec ("\316"); // capital I, circumflex accent
+ m_entityDecodeMap["Igrave"] = encodeWithCurrentCodec ("\314"); // capital I, grave accent
+ m_entityDecodeMap["Iuml"] = encodeWithCurrentCodec ("\317"); // capital I, dieresis or umlaut mark
+ m_entityDecodeMap["Ntilde"] = encodeWithCurrentCodec ("\321"); // capital N, tilde
+ m_entityDecodeMap["Oacute"] = encodeWithCurrentCodec ("\323"); // capital O, acute accent
+ m_entityDecodeMap["Ocirc"] = encodeWithCurrentCodec ("\324"); // capital O, circumflex accent
+ m_entityDecodeMap["Ograve"] = encodeWithCurrentCodec ("\322"); // capital O, grave accent
+ m_entityDecodeMap["Oslash"] = encodeWithCurrentCodec ("\330"); // capital O, slash
+ m_entityDecodeMap["Otilde"] = encodeWithCurrentCodec ("\325"); // capital O, tilde
+ m_entityDecodeMap["Ouml"] = encodeWithCurrentCodec ("\326"); // capital O, dieresis or umlaut mark
+ m_entityDecodeMap["THORN"] = encodeWithCurrentCodec ("\336"); // capital THORN, Icelandic
+ m_entityDecodeMap["Uacute"] = encodeWithCurrentCodec ("\332"); // capital U, acute accent
+ m_entityDecodeMap["Ucirc"] = encodeWithCurrentCodec ("\333"); // capital U, circumflex accent
+ m_entityDecodeMap["Ugrave"] = encodeWithCurrentCodec ("\331"); // capital U, grave accent
+ m_entityDecodeMap["Uuml"] = encodeWithCurrentCodec ("\334"); // capital U, dieresis or umlaut mark
+ m_entityDecodeMap["Yacute"] = encodeWithCurrentCodec ("\335"); // capital Y, acute accent
+ m_entityDecodeMap["OElig"] = encodeWithCurrentCodec ("\338"); // capital Y, acute accent
+ m_entityDecodeMap["oelig"] = encodeWithCurrentCodec ("\339"); // capital Y, acute accent
+
+ m_entityDecodeMap["aacute"] = encodeWithCurrentCodec ("\341"); // small a, acute accent
+ m_entityDecodeMap["acirc"] = encodeWithCurrentCodec ("\342"); // small a, circumflex accent
+ m_entityDecodeMap["aelig"] = encodeWithCurrentCodec ("\346"); // small ae diphthong (ligature)
+ m_entityDecodeMap["agrave"] = encodeWithCurrentCodec ("\340"); // small a, grave accent
+ m_entityDecodeMap["aring"] = encodeWithCurrentCodec ("\345"); // small a, ring
+ m_entityDecodeMap["atilde"] = encodeWithCurrentCodec ("\343"); // small a, tilde
+ m_entityDecodeMap["auml"] = encodeWithCurrentCodec ("\344"); // small a, dieresis or umlaut mark
+ m_entityDecodeMap["ccedil"] = encodeWithCurrentCodec ("\347"); // small c, cedilla
+ m_entityDecodeMap["eacute"] = encodeWithCurrentCodec ("\351"); // small e, acute accent
+ m_entityDecodeMap["ecirc"] = encodeWithCurrentCodec ("\352"); // small e, circumflex accent
+ m_entityDecodeMap["Scaron"] = encodeWithCurrentCodec ("\352"); // small e, circumflex accent
+ m_entityDecodeMap["egrave"] = encodeWithCurrentCodec ("\350"); // small e, grave accent
+ m_entityDecodeMap["eth"] = encodeWithCurrentCodec ("\360"); // small eth, Icelandic
+ m_entityDecodeMap["euml"] = encodeWithCurrentCodec ("\353"); // small e, dieresis or umlaut mark
+ m_entityDecodeMap["iacute"] = encodeWithCurrentCodec ("\355"); // small i, acute accent
+ m_entityDecodeMap["icirc"] = encodeWithCurrentCodec ("\356"); // small i, circumflex accent
+ m_entityDecodeMap["igrave"] = encodeWithCurrentCodec ("\354"); // small i, grave accent
+ m_entityDecodeMap["iuml"] = encodeWithCurrentCodec ("\357"); // small i, dieresis or umlaut mark
+ m_entityDecodeMap["ntilde"] = encodeWithCurrentCodec ("\361"); // small n, tilde
+ m_entityDecodeMap["oacute"] = encodeWithCurrentCodec ("\363"); // small o, acute accent
+ m_entityDecodeMap["ocirc"] = encodeWithCurrentCodec ("\364"); // small o, circumflex accent
+ m_entityDecodeMap["ograve"] = encodeWithCurrentCodec ("\362"); // small o, grave accent
+ m_entityDecodeMap["oslash"] = encodeWithCurrentCodec ("\370"); // small o, slash
+ m_entityDecodeMap["otilde"] = encodeWithCurrentCodec ("\365"); // small o, tilde
+ m_entityDecodeMap["ouml"] = encodeWithCurrentCodec ("\366"); // small o, dieresis or umlaut mark
+ m_entityDecodeMap["szlig"] = encodeWithCurrentCodec ("\337"); // small sharp s, German (sz ligature)
+ m_entityDecodeMap["thorn"] = encodeWithCurrentCodec ("\376"); // small thorn, Icelandic
+ m_entityDecodeMap["uacute"] = encodeWithCurrentCodec ("\372"); // small u, acute accent
+ m_entityDecodeMap["ucirc"] = encodeWithCurrentCodec ("\373"); // small u, circumflex accent
+ m_entityDecodeMap["ugrave"] = encodeWithCurrentCodec ("\371"); // small u, grave accent
+ m_entityDecodeMap["uuml"] = encodeWithCurrentCodec ("\374"); // small u, dieresis or umlaut mark
+ m_entityDecodeMap["yacute"] = encodeWithCurrentCodec ("\375"); // small y, acute accent
+ m_entityDecodeMap["yuml"] = encodeWithCurrentCodec ("\377"); // small y, dieresis or umlaut mark
+
+ m_entityDecodeMap["iexcl"] = encodeWithCurrentCodec ("\241");
+ m_entityDecodeMap["cent"] = encodeWithCurrentCodec ("\242");
+ m_entityDecodeMap["pound"] = encodeWithCurrentCodec ("\243");
+ m_entityDecodeMap["curren"] = encodeWithCurrentCodec ("\244");
+ m_entityDecodeMap["yen"] = encodeWithCurrentCodec ("\245");
+ m_entityDecodeMap["brvbar"] = encodeWithCurrentCodec ("\246");
+ m_entityDecodeMap["sect"] = encodeWithCurrentCodec ("\247");
+ m_entityDecodeMap["uml"] = encodeWithCurrentCodec ("\250");
+ m_entityDecodeMap["ordf"] = encodeWithCurrentCodec ("\252");
+ m_entityDecodeMap["laquo"] = encodeWithCurrentCodec ("\253");
+ m_entityDecodeMap["not"] = encodeWithCurrentCodec ("\254");
+ m_entityDecodeMap["shy"] = encodeWithCurrentCodec ("\255");
+ m_entityDecodeMap["macr"] = encodeWithCurrentCodec ("\257");
+ m_entityDecodeMap["deg"] = encodeWithCurrentCodec ("\260");
+ m_entityDecodeMap["plusmn"] = encodeWithCurrentCodec ("\261");
+ m_entityDecodeMap["sup1"] = encodeWithCurrentCodec ("\271");
+ m_entityDecodeMap["sup2"] = encodeWithCurrentCodec ("\262");
+ m_entityDecodeMap["sup3"] = encodeWithCurrentCodec ("\263");
+ m_entityDecodeMap["acute"] = encodeWithCurrentCodec ("\264");
+ m_entityDecodeMap["micro"] = encodeWithCurrentCodec ("\265");
+ m_entityDecodeMap["para"] = encodeWithCurrentCodec ("\266");
+ m_entityDecodeMap["middot"] = encodeWithCurrentCodec ("\267");
+ m_entityDecodeMap["cedil"] = encodeWithCurrentCodec ("\270");
+ m_entityDecodeMap["ordm"] = encodeWithCurrentCodec ("\272");
+ m_entityDecodeMap["raquo"] = encodeWithCurrentCodec ("\273");
+ m_entityDecodeMap["frac14"] = encodeWithCurrentCodec ("\274");
+ m_entityDecodeMap["frac12"] = encodeWithCurrentCodec ("\275");
+ m_entityDecodeMap["frac34"] = encodeWithCurrentCodec ("\276");
+ m_entityDecodeMap["iquest"] = encodeWithCurrentCodec ("\277");
+ m_entityDecodeMap["times"] = encodeWithCurrentCodec ("\327");
+ m_entityDecodeMap["divide"] = encodeWithCurrentCodec ("\367");
+
+ m_entityDecodeMap["copy"] = encodeWithCurrentCodec ("\251"); // copyright sign
+ m_entityDecodeMap["reg"] = encodeWithCurrentCodec ("\256"); // registered sign
+ m_entityDecodeMap["nbsp"] = encodeWithCurrentCodec ("\240"); // non breaking space
+
+ m_entityDecodeMap["fnof"] = QChar((unsigned short) 402);
+
+ m_entityDecodeMap["Delta"] = QChar((unsigned short) 916);
+ m_entityDecodeMap["Pi"] = QChar((unsigned short) 928);
+ m_entityDecodeMap["Sigma"] = QChar((unsigned short) 931);
+
+ m_entityDecodeMap["beta"] = QChar((unsigned short) 946);
+ m_entityDecodeMap["gamma"] = QChar((unsigned short) 947);
+ m_entityDecodeMap["delta"] = QChar((unsigned short) 948);
+ m_entityDecodeMap["eta"] = QChar((unsigned short) 951);
+ m_entityDecodeMap["theta"] = QChar((unsigned short) 952);
+ m_entityDecodeMap["lambda"] = QChar((unsigned short) 955);
+ m_entityDecodeMap["mu"] = QChar((unsigned short) 956);
+ m_entityDecodeMap["nu"] = QChar((unsigned short) 957);
+ m_entityDecodeMap["pi"] = QChar((unsigned short) 960);
+ m_entityDecodeMap["rho"] = QChar((unsigned short) 961);
+
+ m_entityDecodeMap["lsquo"] = QChar((unsigned short) 8216);
+ m_entityDecodeMap["rsquo"] = QChar((unsigned short) 8217);
+ m_entityDecodeMap["rdquo"] = QChar((unsigned short) 8221);
+ m_entityDecodeMap["bdquo"] = QChar((unsigned short) 8222);
+ m_entityDecodeMap["trade"] = QChar((unsigned short) 8482);
+ m_entityDecodeMap["ldquo"] = QChar((unsigned short) 8220);
+ m_entityDecodeMap["ndash"] = QChar((unsigned short) 8211);
+ m_entityDecodeMap["mdash"] = QChar((unsigned short) 8212);
+ m_entityDecodeMap["bull"] = QChar((unsigned short) 8226);
+ m_entityDecodeMap["hellip"] = QChar((unsigned short) 8230);
+ m_entityDecodeMap["emsp"] = QChar((unsigned short) 8195);
+ m_entityDecodeMap["rarr"] = QChar((unsigned short) 8594);
+ m_entityDecodeMap["rArr"] = QChar((unsigned short) 8658);
+ m_entityDecodeMap["crarr"] = QChar((unsigned short) 8629);
+ m_entityDecodeMap["le"] = QChar((unsigned short) 8804);
+ m_entityDecodeMap["ge"] = QChar((unsigned short) 8805);
+ m_entityDecodeMap["lte"] = QChar((unsigned short) 8804); // wrong, but used somewhere
+ m_entityDecodeMap["gte"] = QChar((unsigned short) 8805); // wrong, but used somewhere
+ m_entityDecodeMap["dagger"] = QChar((unsigned short) 8224);
+ m_entityDecodeMap["Dagger"] = QChar((unsigned short) 8225);
+ m_entityDecodeMap["euro"] = QChar((unsigned short) 8364);
+ m_entityDecodeMap["asymp"] = QChar((unsigned short) 8776);
+ m_entityDecodeMap["isin"] = QChar((unsigned short) 8712);
+ m_entityDecodeMap["notin"] = QChar((unsigned short) 8713);
+ m_entityDecodeMap["prod"] = QChar((unsigned short) 8719);
+ m_entityDecodeMap["ne"] = QChar((unsigned short) 8800);
+
+ m_entityDecodeMap["amp"] = "&"; // ampersand
+ m_entityDecodeMap["gt"] = ">"; // greater than
+ m_entityDecodeMap["lt"] = "<"; // less than
+ m_entityDecodeMap["quot"] = "\""; // double quote
+ m_entityDecodeMap["apos"] = "'"; // single quote
+ m_entityDecodeMap["frasl"] = "/";
+ m_entityDecodeMap["minus"] = "-";
+ m_entityDecodeMap["oplus"] = "+";
+ m_entityDecodeMap["Prime"] = "\"";
+ }
+
+ // If entity is an ASCII code like &#12349; - just decode it
+ if ( entity[0] == '#' )
+ {
+ bool valid;
+ unsigned int ascode = entity.mid(1).toUInt( &valid );
+
+ if ( !valid )
+ {
+ qWarning ( "LCHMFileImpl::decodeEntity: could not decode HTML entity '%s'", entity.ascii() );
+ return QString::null;
+ }
+
+ return (QString) (QChar( ascode ));
+ }
+ else
+ {
+ QMap<QString, QString>::const_iterator it = m_entityDecodeMap.find( entity );
+
+ if ( it == m_entityDecodeMap.end() )
+ {
+ qWarning ("LCHMFileImpl::decodeEntity: could not decode HTML entity '%s'", entity.ascii());
+ return QString::null;
+ }
+
+ return *it;
+ }
+}
+
+
+inline int LCHMFileImpl::findStringInQuotes (const QString& tag, int offset, QString& value, bool firstquote, bool decodeentities)
+{
+ int qbegin = tag.find ('"', offset);
+
+ if ( qbegin == -1 )
+ qFatal ("LCHMFileImpl::findStringInQuotes: cannot find first quote in <param> tag: '%s'", tag.ascii());
+
+ int qend = firstquote ? tag.find ('"', qbegin + 1) : tag.findRev ('"');
+
+ if ( qend == -1 || qend <= qbegin )
+ qFatal ("LCHMFileImpl::findStringInQuotes: cannot find last quote in <param> tag: '%s'", tag.ascii());
+
+ // If we do not need to decode HTML entities, just return.
+ if ( decodeentities )
+ {
+ QString htmlentity = QString::null;
+ bool fill_entity = false;
+
+ value.reserve (qend - qbegin); // to avoid multiple memory allocations
+
+ for ( int i = qbegin + 1; i < qend; i++ )
+ {
+ if ( !fill_entity )
+ {
+ if ( tag[i] == '&' ) // HTML entity starts
+ fill_entity = true;
+ else
+ value.append (tag[i]);
+ }
+ else
+ {
+ if ( tag[i] == ';' ) // HTML entity ends
+ {
+ // If entity is an ASCII code, just decode it
+ QString decode = decodeEntity( htmlentity );
+
+ if ( decode.isNull() )
+ break;
+
+ value.append ( decode );
+ htmlentity = QString::null;
+ fill_entity = false;
+ }
+ else
+ htmlentity.append (tag[i]);
+ }
+ }
+ }
+ else
+ value = tag.mid (qbegin + 1, qend - qbegin - 1);
+
+ return qend + 1;
+}
+
+
+bool LCHMFileImpl::searchWord (const QString& text,
+ bool wholeWords,
+ bool titlesOnly,
+ LCHMSearchProgressResults& results,
+ bool phrase_search)
+{
+ bool partial = false;
+
+ if ( text.isEmpty() || !m_searchAvailable )
+ return false;
+
+ QString searchword = (QString) convertSearchWord (text);
+
+#define FTS_HEADER_LEN 0x32
+ unsigned char header[FTS_HEADER_LEN];
+
+ if ( RetrieveObject (&m_chmFIftiMain, header, 0, FTS_HEADER_LEN) == 0 )
+ return false;
+
+ unsigned char doc_index_s = header[0x1E], doc_index_r = header[0x1F];
+ unsigned char code_count_s = header[0x20], code_count_r = header[0x21];
+ unsigned char loc_codes_s = header[0x22], loc_codes_r = header[0x23];
+
+ if(doc_index_s != 2 || code_count_s != 2 || loc_codes_s != 2)
+ {
+ // Don't know how to use values other than 2 yet. Maybe next chmspec.
+ return false;
+ }
+
+ unsigned char* cursor32 = header + 0x14;
+ u_int32_t node_offset = UINT32ARRAY(cursor32);
+
+ cursor32 = header + 0x2e;
+ u_int32_t node_len = UINT32ARRAY(cursor32);
+
+ unsigned char* cursor16 = header + 0x18;
+ u_int16_t tree_depth = UINT16ARRAY(cursor16);
+
+ unsigned char word_len, pos;
+ QString word;
+ u_int32_t i = sizeof(u_int16_t);
+ u_int16_t free_space;
+
+ QMemArray<unsigned char> buffer(node_len);
+
+ node_offset = GetLeafNodeOffset (searchword, node_offset, node_len, tree_depth);
+
+ if ( !node_offset )
+ return false;
+
+ do
+ {
+ // got a leaf node here.
+ if ( RetrieveObject (&m_chmFIftiMain, buffer.data(), node_offset, node_len) == 0 )
+ return false;
+
+ cursor16 = buffer.data() + 6;
+ free_space = UINT16ARRAY(cursor16);
+
+ i = sizeof(u_int32_t) + sizeof(u_int16_t) + sizeof(u_int16_t);
+ u_int64_t wlc_count, wlc_size;
+ u_int32_t wlc_offset;
+
+ while (i < node_len - free_space)
+ {
+ word_len = *(buffer.data() + i);
+ pos = *(buffer.data() + i + 1);
+
+ char *wrd_buf = new char[word_len];
+ memcpy (wrd_buf, buffer.data() + i + 2, word_len - 1);
+ wrd_buf[word_len - 1] = 0;
+
+ if ( pos == 0 )
+ word = wrd_buf;
+ else
+ word = word.mid (0, pos) + wrd_buf;
+
+ delete[] wrd_buf;
+
+ i += 2 + word_len;
+ unsigned char title = *(buffer.data() + i - 1);
+
+ size_t encsz;
+ wlc_count = be_encint (buffer.data() + i, encsz);
+ i += encsz;
+
+ cursor32 = buffer.data() + i;
+ wlc_offset = UINT32ARRAY(cursor32);
+
+ i += sizeof(u_int32_t) + sizeof(u_int16_t);
+ wlc_size = be_encint (buffer.data() + i, encsz);
+ i += encsz;
+
+ cursor32 = buffer.data();
+ node_offset = UINT32ARRAY(cursor32);
+
+ if ( !title && titlesOnly )
+ continue;
+
+ if ( wholeWords && searchword == word )
+ return ProcessWLC(wlc_count, wlc_size,
+ wlc_offset, doc_index_s,
+ doc_index_r,code_count_s,
+ code_count_r, loc_codes_s,
+ loc_codes_r, results, phrase_search);
+
+ if ( !wholeWords )
+ {
+ if ( word.startsWith (searchword))
+ {
+ partial = true;
+
+ ProcessWLC(wlc_count, wlc_size,
+ wlc_offset, doc_index_s,
+ doc_index_r,code_count_s,
+ code_count_r, loc_codes_s,
+ loc_codes_r, results, phrase_search);
+
+ }
+ else if ( QString::compare (searchword, word.mid(0, searchword.length())) < -1 )
+ break;
+ }
+ }
+ }
+ while ( !wholeWords && word.startsWith (searchword) && node_offset );
+
+ return partial;
+}
+
+
+bool LCHMFileImpl::ResolveObject(const QString& fileName, chmUnitInfo *ui) const
+{
+ return m_chmFile != NULL
+ && ::chm_resolve_object(m_chmFile, fileName.ascii(), ui) ==
+ CHM_RESOLVE_SUCCESS;
+}
+
+
+size_t LCHMFileImpl::RetrieveObject(const chmUnitInfo *ui, unsigned char *buffer,
+ LONGUINT64 fileOffset, LONGINT64 bufferSize) const
+{
+#if USE_BUILTIN_CHMLIB
+ return ::chm_retrieve_object(m_chmFile, ui, buffer,
+ fileOffset, bufferSize);
+#else
+ return ::chm_retrieve_object(m_chmFile, const_cast<chmUnitInfo*>(ui),
+ buffer, fileOffset, bufferSize);
+#endif
+}
+
+
+inline u_int32_t LCHMFileImpl::GetLeafNodeOffset(const QString& text,
+ u_int32_t initialOffset,
+ u_int32_t buffSize,
+ u_int16_t treeDepth)
+{
+ u_int32_t test_offset = 0;
+ unsigned char* cursor16, *cursor32;
+ unsigned char word_len, pos;
+ u_int32_t i = sizeof(u_int16_t);
+ QMemArray<unsigned char> buffer(buffSize);
+ QString word;
+
+ while(--treeDepth)
+ {
+ if ( initialOffset == test_offset )
+ return 0;
+
+ test_offset = initialOffset;
+ if ( RetrieveObject (&m_chmFIftiMain, buffer.data(), initialOffset, buffSize) == 0 )
+ return 0;
+
+ cursor16 = buffer.data();
+ u_int16_t free_space = UINT16ARRAY(cursor16);
+
+ while (i < buffSize - free_space )
+ {
+ word_len = *(buffer.data() + i);
+ pos = *(buffer.data() + i + 1);
+
+ char *wrd_buf = new char[word_len];
+ memcpy ( wrd_buf, buffer.data() + i + 2, word_len - 1 );
+ wrd_buf[word_len - 1] = 0;
+
+ if ( pos == 0 )
+ word = wrd_buf;
+ else
+ word = word.mid(0, pos) + wrd_buf;
+
+ delete[] wrd_buf;
+
+ if ( text <= word )
+ {
+ cursor32 = buffer.data() + i + word_len + 1;
+ initialOffset = UINT32ARRAY(cursor32);
+ break;
+ }
+
+ i += word_len + sizeof(unsigned char) +
+ sizeof(u_int32_t) + sizeof(u_int16_t);
+ }
+ }
+
+ if ( initialOffset == test_offset )
+ return 0;
+
+ return initialOffset;
+}
+
+
+inline bool LCHMFileImpl::ProcessWLC (u_int64_t wlc_count, u_int64_t wlc_size,
+ u_int32_t wlc_offset, unsigned char ds,
+ unsigned char dr, unsigned char cs,
+ unsigned char cr, unsigned char ls,
+ unsigned char lr,
+ LCHMSearchProgressResults& results,
+ bool phrase_search)
+{
+ int wlc_bit = 7;
+ u_int64_t index = 0, count;
+ size_t length, off = 0;
+ QMemArray<unsigned char> buffer (wlc_size);
+ unsigned char *cursor32;
+
+ unsigned char entry[TOPICS_ENTRY_LEN];
+ unsigned char combuf[13];
+
+ if ( RetrieveObject (&m_chmFIftiMain, buffer.data(), wlc_offset, wlc_size) == 0 )
+ return false;
+
+ for ( u_int64_t i = 0; i < wlc_count; ++i )
+ {
+ if ( wlc_bit != 7 )
+ {
+ ++off;
+ wlc_bit = 7;
+ }
+
+ index += sr_int (buffer.data() + off, &wlc_bit, ds, dr, length);
+ off += length;
+
+ if ( RetrieveObject (&m_chmTOPICS, entry, index * 16, TOPICS_ENTRY_LEN) == 0 )
+ return false;
+
+ LCHMSearchProgressResult progres;
+
+ cursor32 = entry + 4;
+ progres.titleoff = UINT32ARRAY(cursor32);
+
+ cursor32 = entry + 8;
+ progres.urloff = UINT32ARRAY(cursor32);
+
+ if ( RetrieveObject (&m_chmURLTBL, combuf, progres.urloff, 12) == 0 )
+ return false;
+
+ cursor32 = combuf + 8;
+ progres.urloff = UINT32ARRAY (cursor32);
+
+ count = sr_int (buffer.data() + off, &wlc_bit, cs, cr, length);
+ off += length;
+
+ if ( phrase_search )
+ progres.offsets.reserve (count);
+
+ for (u_int64_t j = 0; j < count; ++j)
+ {
+ u_int64_t lcode = sr_int (buffer.data() + off, &wlc_bit, ls, lr, length);
+ off += length;
+
+ if ( phrase_search )
+ progres.offsets.push_back (lcode);
+ }
+
+ results.push_back (progres);
+ }
+
+ return true;
+}
+
+
+bool LCHMFileImpl::getInfoFromWindows()
+{
+#define WIN_HEADER_LEN 0x08
+ unsigned char buffer[BUF_SIZE];
+ unsigned int factor;
+ chmUnitInfo ui;
+ long size = 0;
+
+ if ( ResolveObject("/#WINDOWS", &ui) )
+ {
+ if ( !RetrieveObject(&ui, buffer, 0, WIN_HEADER_LEN) )
+ return false;
+
+ u_int32_t entries = get_int32_le( (u_int32_t *)(buffer) );
+ u_int32_t entry_size = get_int32_le( (u_int32_t *)(buffer + 0x04) );
+
+ QByteArray uptr(entries * entry_size);
+ unsigned char* raw = (unsigned char*) uptr.data();
+
+ if ( !RetrieveObject (&ui, raw, 8, entries * entry_size) )
+ return false;
+
+ if( !ResolveObject ("/#STRINGS", &ui) )
+ return false;
+
+ for ( u_int32_t i = 0; i < entries; ++i )
+ {
+ u_int32_t offset = i * entry_size;
+
+ u_int32_t off_title = get_int32_le( (u_int32_t *)(raw + offset + 0x14) );
+ u_int32_t off_home = get_int32_le( (u_int32_t *)(raw + offset + 0x68) );
+ u_int32_t off_hhc = get_int32_le( (u_int32_t *)(raw + offset + 0x60) );
+ u_int32_t off_hhk = get_int32_le( (u_int32_t *)(raw + offset + 0x64) );
+
+ factor = off_title / 4096;
+
+ if ( size == 0 )
+ size = RetrieveObject(&ui, buffer, factor * 4096, BUF_SIZE);
+
+ if ( size && off_title )
+ m_title = QString ((const char*) (buffer + off_title % 4096));
+
+ if ( factor != off_home / 4096)
+ {
+ factor = off_home / 4096;
+ size = RetrieveObject (&ui, buffer, factor * 4096, BUF_SIZE);
+ }
+
+ if ( size && off_home )
+ m_home = QString("/") + QString( (const char*) buffer + off_home % 4096);
+
+ if ( factor != off_hhc / 4096)
+ {
+ factor = off_hhc / 4096;
+ size = RetrieveObject(&ui, buffer, factor * 4096, BUF_SIZE);
+ }
+
+ if ( size && off_hhc )
+ m_topicsFile = QString("/") + QString ((const char*) buffer + off_hhc % 4096);
+
+ if ( factor != off_hhk / 4096)
+ {
+ factor = off_hhk / 4096;
+ size = RetrieveObject (&ui, buffer, factor * 4096, BUF_SIZE);
+ }
+
+ if ( size && off_hhk )
+ m_indexFile = QString("/") + QString((const char*) buffer + off_hhk % 4096);
+ }
+ }
+ return true;
+}
+
+
+
+bool LCHMFileImpl::getInfoFromSystem()
+{
+ unsigned char buffer[BUF_SIZE];
+ chmUnitInfo ui;
+
+ int index = 0;
+ unsigned char* cursor = NULL, *p;
+ u_int16_t value = 0;
+ long size = 0;
+
+ // Run the first loop to detect the encoding. We need this, because title could be
+ // already encoded in user encoding. Same for file names
+ if ( !ResolveObject ("/#SYSTEM", &ui) )
+ return false;
+
+ // Can we pull BUFF_SIZE bytes of the #SYSTEM file?
+ if ( (size = RetrieveObject (&ui, buffer, 4, BUF_SIZE)) == 0 )
+ return false;
+
+ buffer[size - 1] = 0;
+
+ // First loop to detect the encoding
+ for ( index = 0; index < (size - 1 - (long)sizeof(u_int16_t)) ;)
+ {
+ cursor = buffer + index;
+ value = UINT16ARRAY(cursor);
+
+ switch(value)
+ {
+ case 0:
+ index += 2;
+ cursor = buffer + index;
+
+ if(m_topicsFile.isEmpty())
+ m_topicsFile = QString("/") + QString((const char*) buffer + index + 2);
+
+ break;
+
+ case 1:
+ index += 2;
+ cursor = buffer + index;
+
+ if(m_indexFile.isEmpty())
+ m_indexFile = QString("/") + QString ((const char*)buffer + index + 2);
+ break;
+
+ case 2:
+ index += 2;
+ cursor = buffer + index;
+
+ if(m_home.isEmpty() || m_home == "/")
+ m_home = QString("/") + QString ((const char*) buffer + index + 2);
+ break;
+
+ case 3:
+ index += 2;
+ cursor = buffer + index;
+ m_title = QString((const char*) (buffer + index + 2));
+ break;
+
+ case 4:
+ index += 2;
+ cursor = buffer + index;
+
+ p = buffer + index + 2;
+ m_detectedLCID = (short) (p[0] | (p[1]<<8));
+
+ break;
+
+ case 6:
+ index += 2;
+ cursor = buffer + index;
+
+ if(m_topicsFile.isEmpty()) {
+ QString topicAttempt = "/", tmp;
+ topicAttempt += QString ((const char*) buffer +index +2);
+
+ tmp = topicAttempt + ".hhc";
+
+ if ( ResolveObject( tmp, &ui) )
+ m_topicsFile = tmp;
+
+ tmp = topicAttempt + ".hhk";
+
+ if ( ResolveObject( tmp, &ui) )
+ m_indexFile = tmp;
+ }
+ break;
+
+ case 16:
+ index += 2;
+ cursor = buffer + index;
+
+ m_font = QString ((const char*) buffer + index + 2);
+ break;
+
+ default:
+ index += 2;
+ cursor = buffer + index;
+ }
+
+ value = UINT16ARRAY(cursor);
+ index += value + 2;
+ }
+
+ return true;
+}
+
+
+QCString LCHMFileImpl::convertSearchWord( const QString & src )
+{
+ static const char * searchwordtable[128] =
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "s", 0, "oe", 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "s", 0, "oe", 0, 0, "y",
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ "a", "a", "a", "a", "a", "a", "ae", "c", "e", "e", "e", "e", "i", "i", "i", "i",
+ "d", "n", "o", "o", "o", "o", "o", 0, "o", "u", "u", "u", "u", "y", "\xDE", "ss",
+ "a", "a", "a", "a", "a", "a", "ae", "c", "e", "e", "e", "e", "i", "i", "i", "i",
+ "o", "n", "o", "o", "o", "o", "o", 0, "o", "u", "u", "u", "u", "y", "\xFE", "y"
+ };
+
+ if ( !m_textCodec )
+ return (QCString) src.lower();
+
+ QCString dest = m_textCodec->fromUnicode (src);
+
+ for ( unsigned int i = 0; i < dest.size(); i++ )
+ {
+ if ( dest[i] & 0x80 )
+ {
+ int index = dest[i] & 0x7F;
+ if ( searchwordtable[index] )
+ dest.replace (i, 1, searchwordtable[index]);
+ else
+ dest.remove (i, 1);
+ }
+ }
+
+ return dest.lower();
+}
+
+
+
+void LCHMFileImpl::getSearchResults( const LCHMSearchProgressResults& tempres,
+ QStringList * results,
+ unsigned int limit_results )
+{
+ unsigned char combuf [COMMON_BUF_LEN];
+ QMap<u_int32_t, u_int32_t> urlsmap; // used to prevent duplicated urls
+
+ for ( unsigned int i = 0; i < tempres.size(); i++ )
+ {
+ if ( urlsmap.find (tempres[i].urloff) != urlsmap.end() )
+ continue;
+
+ urlsmap[tempres[i].urloff] = 1;
+
+ if ( RetrieveObject (&m_chmURLSTR, combuf, tempres[i].urloff + 8, COMMON_BUF_LEN - 1) == 0 )
+ continue;
+
+ combuf[COMMON_BUF_LEN - 1] = 0;
+ results->push_back( LCHMUrlFactory::makeURLabsoluteIfNeeded( (const char*) combuf ) );
+
+ if ( --limit_results == 0 )
+ break;
+ }
+}
+
+
+QString LCHMFileImpl::normalizeUrl( const QString & path ) const
+{
+ int pos = path.find ('#');
+ QString fixedpath = pos == -1 ? path : path.left (pos);
+
+ return LCHMUrlFactory::makeURLabsoluteIfNeeded( fixedpath );
+}
+
+
+/*
+ * FIXME: <OBJECT type="text/sitemap"><param name="Merge" value="hhaxref.chm::/HHOCX_c.hhc"></OBJECT>
+ * (from htmlhelp.chm)
+*/
+bool LCHMFileImpl::parseFileAndFillArray( const QString & file, QT34VECTOR< LCHMParsedEntry > * data, bool asIndex )
+{
+ QString src;
+ const int MAX_NEST_DEPTH = 256;
+
+ if ( !getFileContentAsString( &src, file ) || src.isEmpty() )
+ return false;
+
+ KCHMShowWaitCursor wc;
+
+/*
+ // Save the index for debugging purposes
+ QFile outfile( "parsed.htm" );
+
+ if ( outfile.open( IO_WriteOnly ) )
+ {
+ QTextStream textstream( &outfile );
+ textstream << src;
+ outfile.close();
+ }
+*/
+
+ unsigned int defaultimagenum = asIndex ? LCHMBookIcons::IMAGE_INDEX : LCHMBookIcons::IMAGE_AUTO;
+ int pos = 0, indent = 0, root_indent_offset = 0;
+ bool in_object = false, root_indent_offset_set = false;
+
+ LCHMParsedEntry entry;
+ entry.imageid = defaultimagenum;
+
+ // Split the HHC file by HTML tags
+ int stringlen = src.length();
+
+ while ( pos < stringlen && (pos = src.find ('<', pos)) != -1 )
+ {
+ int i, word_end = 0;
+
+ for ( i = ++pos; i < stringlen; i++ )
+ {
+ // If a " or ' is found, skip to the next one.
+ if ( (src[i] == '"' || src[i] == '\'') )
+ {
+ // find where quote ends, either by another quote, or by '>' symbol (some people don't know HTML)
+ int nextpos = src.find (src[i], i+1);
+ if ( nextpos == -1 && (nextpos = src.find ('>', i+1)) == -1 )
+ {
+ qWarning ("LCHMFileImpl::ParseHhcAndFillTree: corrupted TOC: %s", src.mid(i).ascii());
+ return false;
+ }
+
+ i = nextpos;
+ }
+ else if ( src[i] == '>' )
+ break;
+ else if ( !src[i].isLetterOrNumber() && src[i] != '/' && !word_end )
+ word_end = i;
+ }
+
+ QString tagword, tag = src.mid (pos, i - pos);
+
+ if ( word_end )
+ tagword = src.mid (pos, word_end - pos).lower();
+ else
+ tagword = tag.lower();
+
+ //qDebug ("tag: '%s', tagword: '%s'\n", tag.ascii(), tagword.ascii());
+
+ // <OBJECT type="text/sitemap"> - a topic entry
+ if ( tagword == "object" && tag.find ("text/sitemap", 0, false) != -1 )
+ in_object = true;
+ else if ( tagword == "/object" && in_object )
+ {
+ // a topic entry closed. Add a tree item
+ if ( entry.name )
+ {
+ if ( !root_indent_offset_set )
+ {
+ root_indent_offset_set = true;
+ root_indent_offset = indent;
+
+ if ( root_indent_offset > 1 )
+ qWarning("CHM has improper index; root indent offset is %d", root_indent_offset);
+ }
+
+ int real_indent = indent - root_indent_offset;
+
+ entry.indent = real_indent;
+ data->push_back( entry );
+ }
+ else
+ {
+ if ( !entry.urls.isEmpty() )
+ qDebug ("LCHMFileImpl::ParseAndFillTopicsTree: <object> tag with url \"%s\" is parsed, but name is empty.", entry.urls[0].ascii());
+ else
+ qDebug ("LCHMFileImpl::ParseAndFillTopicsTree: <object> tag is parsed, but both name and url are empty.");
+ }
+
+ entry.name = QString::null;
+ entry.urls.clear();
+ entry.imageid = defaultimagenum;
+ in_object = false;
+ }
+ else if ( tagword == "param" && in_object )
+ {
+ // <param name="Name" value="First Page">
+ int offset; // strlen("param ")
+ QString name_pattern = "name=", value_pattern = "value=";
+ QString pname, pvalue;
+
+ if ( (offset = tag.find (name_pattern, 0, FALSE)) == -1 )
+ qFatal ("LCHMFileImpl::ParseAndFillTopicsTree: bad <param> tag '%s': no name=\n", tag.ascii());
+
+ // offset+5 skips 'name='
+ offset = findStringInQuotes (tag, offset + name_pattern.length(), pname, TRUE, FALSE);
+ pname = pname.lower();
+
+ if ( (offset = tag.find (value_pattern, offset, FALSE)) == -1 )
+ qFatal ("LCHMFileImpl::ParseAndFillTopicsTree: bad <param> tag '%s': no value=\n", tag.ascii());
+
+ // offset+6 skips 'value='
+ findStringInQuotes (tag, offset + value_pattern.length(), pvalue, FALSE, TRUE);
+
+ //qDebug ("<param>: name '%s', value '%s'", pname.ascii(), pvalue.ascii());
+
+ if ( pname == "name" )
+ {
+ // Some help files contain duplicate names, where the second name is empty. Work it around by keeping the first one
+ if ( !pvalue.isEmpty() )
+ entry.name = pvalue;
+ }
+ else if ( pname == "local" )
+ {
+ // Check for URL duplication
+ QString url = LCHMUrlFactory::makeURLabsoluteIfNeeded( pvalue );
+
+ if ( entry.urls.find( url ) == entry.urls.end() )
+ entry.urls.push_back( url );
+ }
+ else if ( pname == "see also" && asIndex && entry.name != pvalue )
+ entry.urls.push_back (":" + pvalue);
+ else if ( pname == "imagenumber" )
+ {
+ bool bok;
+ int imgnum = pvalue.toInt (&bok);
+
+ if ( bok && imgnum >= 0 && imgnum < LCHMBookIcons::MAX_BUILTIN_ICONS )
+ entry.imageid = imgnum;
+ }
+ }
+ else if ( tagword == "ul" ) // increase indent level
+ {
+ // Fix for buggy help files
+ if ( ++indent >= MAX_NEST_DEPTH )
+ qFatal("LCHMFileImpl::ParseAndFillTopicsTree: max nest depth (%d) is reached, error in help file", MAX_NEST_DEPTH);
+
+ // This intended to fix <ul><ul>, which was seen in some buggy chm files,
+ // and brokes rootentry[indent-1] check
+ }
+ else if ( tagword == "/ul" ) // decrease indent level
+ {
+ if ( --indent < root_indent_offset )
+ indent = root_indent_offset;
+
+ DEBUGPARSER(("</ul>: new intent is %d\n", indent - root_indent_offset));
+ }
+
+ pos = i;
+ }
+
+ return true;
+}
+
+
+bool LCHMFileImpl::getFileContentAsBinary( QByteArray * data, const QString & url ) const
+{
+ chmUnitInfo ui;
+
+ if( !ResolveObject( url, &ui ) )
+ return false;
+
+ data->resize( ui.length );
+
+ if ( RetrieveObject( &ui, (unsigned char*) data->data(), 0, ui.length ) )
+ return true;
+ else
+ return false;
+}
+
+
+bool LCHMFileImpl::getFileContentAsString( QString * str, const QString & url, bool internal_encoding )
+{
+ QByteArray buf;
+
+ if ( getFileContentAsBinary( &buf, url ) )
+ {
+ unsigned int length = buf.size();
+
+ if ( length > 0 )
+ {
+ buf.resize( length + 1 );
+ buf [length] = '\0';
+
+ *str = internal_encoding ? (QString)((const char*) buf) : encodeWithCurrentCodec((const char*) buf);
+ return true;
+ }
+ }
+
+ return false;
+}
+
+
+QString LCHMFileImpl::getTopicByUrl( const QString & url ) const
+{
+ QMap< QString, QString >::const_iterator it = m_url2topics.find( url );
+
+ if ( it == m_url2topics.end() )
+ return QString::null;
+
+ return it.data();
+}
+
+
+static int chm_enumerator_callback( struct chmFile*, struct chmUnitInfo *ui, void *context )
+{
+ ((QStringList*) context)->push_back( ui->path );
+ return CHM_ENUMERATOR_CONTINUE;
+}
+
+bool LCHMFileImpl::enumerateFiles( QStringList * files )
+{
+ files->clear();
+ return chm_enumerate( m_chmFile, CHM_ENUMERATE_ALL, chm_enumerator_callback, files );
+}
+
+const QPixmap * LCHMFileImpl::getBookIconPixmap( unsigned int imagenum )
+{
+ return m_imagesKeeper.getImage( imagenum );
+}
+
+bool LCHMFileImpl::setCurrentEncoding( const LCHMTextEncoding * encoding )
+{
+ m_currentEncoding = encoding;
+ return changeFileEncoding( encoding->qtcodec );
+}
+
+
+bool LCHMFileImpl::guessTextEncoding( )
+{
+ const LCHMTextEncoding * enc = 0;
+
+ if ( !m_detectedLCID || (enc = lookupByLCID (m_detectedLCID)) == 0 )
+ qFatal ("Could not detect text encoding by LCID");
+
+ if ( changeFileEncoding (enc->qtcodec) )
+ {
+ m_currentEncoding = enc;
+ return true;
+ }
+
+ return false;
+}
+
+bool LCHMFileImpl::changeFileEncoding( const char *qtencoding )
+{
+ // Encoding could be either simple Qt codepage, or set like CP1251/KOI8, which allows to
+ // set up encodings separately for text (first) and internal files (second)
+ const char * p = strchr( qtencoding, '/' );
+ if ( p )
+ {
+ char buf[128]; // much bigger that any encoding possible. No DoS; all encodings are hardcoded.
+ strcpy( buf, qtencoding );
+ buf[p - qtencoding] = '\0';
+
+ m_textCodec = QTextCodec::codecForName( buf );
+
+ if ( !m_textCodec )
+ {
+ qWarning( "Could not set up Text Codec for encoding '%s'", buf );
+ return false;
+ }
+
+ m_textCodecForSpecialFiles = QTextCodec::codecForName( p + 1 );
+
+ if ( !m_textCodecForSpecialFiles )
+ {
+ qWarning( "Could not set up Text Codec for encoding '%s'", p + 1 );
+ return false;
+ }
+ }
+ else
+ {
+ m_textCodecForSpecialFiles = m_textCodec = QTextCodec::codecForName (qtencoding);
+
+ if ( !m_textCodec )
+ {
+ qWarning( "Could not set up Text Codec for encoding '%s'", qtencoding );
+ return false;
+ }
+ }
+
+ m_entityDecodeMap.clear();
+ return true;
+}
+
+
+void LCHMFileImpl::fillTopicsUrlMap()
+{
+ if ( !m_lookupTablesValid )
+ return;
+
+ // Read those tables
+ QByteArray topics( m_chmTOPICS.length ), urltbl( m_chmURLTBL.length ), urlstr( m_chmURLSTR.length ), strings( m_chmSTRINGS.length );
+
+ if ( !RetrieveObject( &m_chmTOPICS, (unsigned char*) topics.data(), 0, m_chmTOPICS.length )
+ || !RetrieveObject( &m_chmURLTBL, (unsigned char*) urltbl.data(), 0, m_chmURLTBL.length )
+ || !RetrieveObject( &m_chmURLSTR, (unsigned char*) urlstr.data(), 0, m_chmURLSTR.length )
+ || !RetrieveObject( &m_chmSTRINGS, (unsigned char*) strings.data(), 0, m_chmSTRINGS.length ) )
+ return;
+
+ for ( unsigned int i = 0; i < m_chmTOPICS.length; i += TOPICS_ENTRY_LEN )
+ {
+ u_int32_t off_title = get_int32_le( (u_int32_t *)(topics.data() + i + 4) );
+ u_int32_t off_url = get_int32_le( (u_int32_t *)(topics.data() + i + 8) );
+ off_url = get_int32_le( (u_int32_t *)( urltbl.data() + off_url + 8) ) + 8;
+
+ QString url = LCHMUrlFactory::makeURLabsoluteIfNeeded( (const char*) urlstr.data() + off_url );
+
+ if ( off_title < strings.size() )
+ m_url2topics[url] = encodeWithCurrentCodec ( (const char*) strings.data() + off_title );
+ else
+ m_url2topics[url] = "Untitled";
+ }
+}
+
+
+bool LCHMFileImpl::getFileSize(unsigned int * size, const QString & url)
+{
+ chmUnitInfo ui;
+
+ if( !ResolveObject( url, &ui ) )
+ return false;
+
+ *size = ui.length;
+ return true;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-26 23:13:59 +0000