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GoldenDict, a dictionary lookup program.
Copyright (C) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
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 3 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.
The text of the license follows.
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
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parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "article_maker.hh"
#include "config.hh"
#include "htmlescape.hh"
#include "utf8.hh"
#include <QFile>
#include <set>
using std::vector;
using std::string;
using std::wstring;
using std::set;
ArticleMaker::ArticleMaker( vector< sptr< Dictionary::Class > > const & dictionaries_,
vector< Instances::Group > const & groups_ ):
dictionaries( dictionaries_ ),
groups( groups_ )
{
}
string ArticleMaker::makeDefinitionFor( QString const & inWord,
QString const & group ) const
{
printf( "group = %ls\n", group.toStdWString().c_str() );
wstring word = inWord.trimmed().toStdWString();
string result =
"<html><head>"
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">";
QFile cssFile( Config::getUserCssFileName() );
if ( cssFile.open( QFile::ReadOnly ) )
{
result += "<style type=\"text/css\">\n";
result += cssFile.readAll().data();
result += "</style>\n";
}
result += "<title>" + Html::escape( Utf8::encode( word ) ) + "</title>";
// Find the given group
Instances::Group const * activeGroup = 0;
for( unsigned x = 0; x < groups.size(); ++x )
if ( groups[ x ].name == group )
{
activeGroup = &groups[ x ];
break;
}
// If we've found a group, use its dictionaries; otherwise, use the global
// heap.
std::vector< sptr< Dictionary::Class > > const & activeDicts =
activeGroup ? activeGroup->dictionaries : dictionaries;
if ( activeGroup && activeGroup->icon.size() )
{
// This doesn't seem to be much of influence right now, but we'll keep
// it anyway.
result += "<link rel=\"icon\" type=\"image/png\" href=\"qrcx://localhost/flags/" + Html::escape( activeGroup->icon.toUtf8().data() ) + "\" />\n";
}
result += "</head><body>";
// Accumulate main forms
vector< wstring > alts;
{
set< wstring > altsSet;
for( unsigned x = 0; x < activeDicts.size(); ++x )
{
vector< wstring > found = activeDicts[ x ]->findHeadwordsForSynonym( word );
altsSet.insert( found.begin(), found.end() );
}
alts.insert( alts.begin(), altsSet.begin(), altsSet.end() );
}
for( unsigned x = 0; x < alts.size(); ++x )
{
printf( "Alt: %ls\n", alts[ x ].c_str() );
}
for( unsigned x = 0; x < activeDicts.size(); ++x )
{
try
{
string body = activeDicts[ x ]->getArticle( word, alts );
printf( "From %s: %s\n", activeDicts[ x ]->getName().c_str(), body.c_str() );
result += "<div class=\"gddictname\">From " + Html::escape( activeDicts[ x ]->getName() ) + "</div>" + body;
}
catch( Dictionary::exNoSuchWord & )
{
continue;
}
}
result += "</body></html>";
return result;
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __ARTICLE_MAKER_HH_INCLUDED__
#define __ARTICLE_MAKER_HH_INCLUDED__
#include "dictionary.hh"
#include "instances.hh"
/// This class generates the article's body for the given lookup request
class ArticleMaker
{
std::vector< sptr< Dictionary::Class > > const & dictionaries;
std::vector< Instances::Group > const & groups;
public:
/// On construction, a reference to all dictionaries and a reference all
/// groups' instances are to be passed. Those references are kept stored as
/// references, and as such, any changes to them would reflect on the results
/// of the inquiries, altthough those changes are perfectly legal.
ArticleMaker( std::vector< sptr< Dictionary::Class > > const & dictionaries,
std::vector< Instances::Group > const & groups );
/// Looks up the given word within the given group, and creates a full html
/// page text containing its definition.
std::string makeDefinitionFor( QString const & word, QString const & group ) const;
};
#endif

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "article_netmgr.hh"
using std::string;
QNetworkReply * ArticleNetworkAccessManager::createRequest( Operation op,
QNetworkRequest const & req,
QIODevice * outgoingData )
{
if ( op == GetOperation )
{
if ( req.url().scheme() == "qrcx" )
{
// We have to override the local load policy for the qrc scheme, hence
// we use qrcx and redirect it here back to qrc
QUrl newUrl( req.url() );
newUrl.setScheme( "qrc" );
newUrl.setHost( "" );
QNetworkRequest newReq( req );
newReq.setUrl( newUrl );
return QNetworkAccessManager::createRequest( op, newReq, outgoingData );
}
vector< char > data;
QString contentType;
if ( getResource( req.url(), data, contentType ) )
return new ArticleResourceReply( this, req, data, contentType );
}
return QNetworkAccessManager::createRequest( op, req, outgoingData );
}
bool ArticleNetworkAccessManager::getResource( QUrl const & url,
vector< char > & data,
QString & contentType )
{
//printf( "getResource: %ls\n", url.toString().toStdWString().c_str() );
//printf( "scheme: %ls\n", url.scheme().toStdWString().c_str() );
//printf( "host: %ls\n", url.host().toStdWString().c_str() );
if ( url.scheme() == "gdlookup" )
{
string result = articleMaker.makeDefinitionFor( url.queryItemValue( "word" ),
url.queryItemValue( "group" ) );
data.resize( result.size() );
memcpy( &data.front(), result.data(), data.size() );
contentType = "text/html";
return true;
}
if ( ( url.scheme() == "bres" || url.scheme() == "gdau" ) &&
url.path().size() )
{
//printf( "Get %s\n", req.url().host().toLocal8Bit().data() );
//printf( "Get %s\n", req.url().path().toLocal8Bit().data() );
string id = url.host().toStdString();
bool search = ( id == "search" );
for( unsigned x = 0; x < dictionaries.size(); ++x )
{
if ( search || dictionaries[ x ]->getId() == id )
{
try
{
dictionaries[ x ]->getResource( url.path().mid( 1 ).toUtf8().data(),
data );
return true;
}
catch( Dictionary::exNoSuchResource & )
{
if ( !search )
break;
}
}
}
}
return false;
}
ArticleResourceReply::ArticleResourceReply( QObject * parent,
QNetworkRequest const & req,
vector< char > const & data_,
QString const & contentType ):
QNetworkReply( parent ), data( data_ ), left( data.size() )
{
setRequest( req );
setOpenMode( ReadOnly );
if ( contentType.size() )
setHeader( QNetworkRequest::ContentTypeHeader, contentType );
connect( this, SIGNAL( readyReadSignal() ),
this, SLOT( readyReadSlot() ), Qt::QueuedConnection );
connect( this, SIGNAL( finishedSignal() ),
this, SLOT( finishedSlot() ), Qt::QueuedConnection );
emit readyReadSignal();
emit finishedSignal();
}
qint64 ArticleResourceReply::bytesAvailable() const
{
return left + QNetworkReply::bytesAvailable();
}
qint64 ArticleResourceReply::readData( char * out, qint64 maxSize )
{
printf( "====reading %d bytes\n", (int)maxSize );
size_t toRead = maxSize < left ? maxSize : left;
memcpy( out, &data[ data.size() - left ], toRead );
left -= toRead;
if ( !toRead )
return -1;
else
return toRead;
}
void ArticleResourceReply::readyReadSlot()
{
readyRead();
}
void ArticleResourceReply::finishedSlot()
{
finished();
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __ARTICLE_NETMGR_HH_INCLUDED__
#define __ARTICLE_NETMGR_HH_INCLUDED__
#include <QtNetwork>
#include "dictionary.hh"
#include "article_maker.hh"
using std::vector;
/// A custom QNetworkAccessManager version which fetches images from the
/// dictionaries when requested.
class ArticleNetworkAccessManager: public QNetworkAccessManager
{
vector< sptr< Dictionary::Class > > const & dictionaries;
ArticleMaker const & articleMaker;
public:
ArticleNetworkAccessManager( QObject * parent,
vector< sptr< Dictionary::Class > > const &
dictionaries_,
ArticleMaker const & articleMaker_ ):
QNetworkAccessManager( parent ), dictionaries( dictionaries_ ),
articleMaker( articleMaker_ )
{}
/// Tries reading a resource referenced by a "bres://" url. If it succeeds,
/// the vector is filled with data, and true is returned. If it doesn't
/// succeed, it returns false. The function can optionally set the Content-Type
/// header correspondingly.
bool getResource( QUrl const & url, vector< char > & data,
QString & contentType );
protected:
virtual QNetworkReply * createRequest( Operation op,
QNetworkRequest const & req,
QIODevice * outgoingData );
};
class ArticleResourceReply: public QNetworkReply
{
Q_OBJECT
vector< char > data;
size_t left;
public:
ArticleResourceReply( QObject * parent,
QNetworkRequest const &,
vector< char > const & data,
QString const & contentType );
protected:
virtual qint64 bytesAvailable() const;
virtual void abort()
{}
virtual qint64 readData( char * data, qint64 maxSize );
// We use the hackery below to work around the fact that we need to emit
// ready/finish signals after we've been constructed.
signals:
void readyReadSignal();
void finishedSignal();
private slots:
void readyReadSlot();
void finishedSlot();
};
#endif

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "articleview.hh"
#include "externalviewer.hh"
#include <QMessageBox>
#include <QWebHitTestResult>
#include <QMenu>
ArticleView::ArticleView( QWidget * parent, ArticleNetworkAccessManager & nm,
Instances::Groups const & groups_, bool popupView_ ):
QFrame( parent ),
articleNetMgr( nm ),
groups( groups_ ),
popupView( popupView_ )
{
ui.setupUi( this );
ui.definition->setContextMenuPolicy( Qt::CustomContextMenu );
ui.definition->page()->setLinkDelegationPolicy( QWebPage::DelegateAllLinks );
ui.definition->page()->setNetworkAccessManager( &articleNetMgr );
connect( ui.definition, SIGNAL( titleChanged( QString const & ) ),
this, SLOT( handleTitleChanged( QString const & ) ) );
connect( ui.definition, SIGNAL( urlChanged( QUrl const & ) ),
this, SLOT( handleUrlChanged( QUrl const & ) ) );
connect( ui.definition, SIGNAL( customContextMenuRequested( QPoint const & ) ),
this, SLOT( contextMenuRequested( QPoint const & ) ) );
connect( ui.definition, SIGNAL( linkClicked( QUrl const & ) ),
this, SLOT( linkClicked( QUrl const & ) ) );
}
void ArticleView::showDefinition( QString const & word, QString const & group )
{
QUrl req;
req.setScheme( "gdlookup" );
req.setHost( "localhost" );
req.addQueryItem( "word", word );
req.addQueryItem( "group", group );
ui.definition->load( req );
}
void ArticleView::handleTitleChanged( QString const & title )
{
emit titleChanged( this, title );
}
void ArticleView::handleUrlChanged( QUrl const & url )
{
QIcon icon;
QString group = getGroup( url );
if ( group.size() )
{
// Find the group's instance corresponding to the fragment value
for( unsigned x = 0; x < groups.size(); ++x )
if ( groups[ x ].name == group )
{
// Found it
if ( groups[ x ].icon.size() )
icon = QIcon( ":/flags/" + groups[ x ].icon );
else
break;
}
}
emit iconChanged( this, icon );
}
QString ArticleView::getGroup( QUrl const & url )
{
if ( url.scheme() == "gdlookup" && url.hasQueryItem( "group" ) )
return url.queryItemValue( "group" );
return QString();
}
void ArticleView::linkClicked( QUrl const & url )
{
printf( "clicked %s\n", url.toString().toLocal8Bit().data() );
if ( url.scheme() == "bword" )
showDefinition( url.host().startsWith( "xn--" ) ?
QUrl::fromPunycode( url.host().toLatin1() ) :
url.host(),
getGroup( ui.definition->url() ) );
else
if ( url.scheme() == "gdlookup" ) // Plain html links inherit gdlookup scheme
showDefinition( url.path().mid( 1 ),
getGroup( ui.definition->url() ) );
else
if ( url.scheme() == "bres" || url.scheme() == "gdau" )
{
vector< char > data;
// Download it
QString contentType;
if ( !articleNetMgr.getResource( url, data, contentType ) )
{
QMessageBox::critical( this, tr( "GoldenDict" ), tr( "The referenced resource doesn't exist." ) );
return;
}
// Decide the viewer
QString program, extension;
if ( url.scheme() == "gdau" )
{
program = "mplayer";
extension = "wav";
}
else
if ( url.path().endsWith( ".pdf", Qt::CaseInsensitive ) )
{
program = "evince";
extension = "pdf";
}
else
if ( url.path().endsWith( ".rtf", Qt::CaseInsensitive ) )
{
program = "oowriter";
extension = "rtf";
}
else
{
QMessageBox::critical( this, tr( "GoldenDict" ), tr( "Don't know how to handle the specified resource." ) );
return;
}
try
{
ExternalViewer * viewer = new ExternalViewer( this, data, extension, program );
try
{
viewer->start();
// Once started, it will erase itself
}
catch( ... )
{
delete viewer;
throw;
}
}
catch( ExternalViewer::Ex & e )
{
printf( "%s\n", e.what() );
}
}
}
void ArticleView::contextMenuRequested( QPoint const & pos )
{
// Is that a link? Is there a selection?
QWebHitTestResult r = ui.definition->page()->currentFrame()->
hitTestContent( pos );
QMenu menu( this );
QAction * followLink = 0;
QAction * lookupSelection = 0;
if ( !r.linkUrl().isEmpty() )
{
followLink = new QAction( tr( "Open the link" ), &menu );
menu.addAction( followLink );
}
QString selectedText = ui.definition->selectedText();
if ( selectedText.size() )
{
lookupSelection = new QAction( tr( "Look up \"%1\"" ).arg( ui.definition->selectedText() ), &menu );
menu.addAction( lookupSelection );
}
if ( !menu.isEmpty() )
{
QAction * result = menu.exec( ui.definition->mapToGlobal( pos ) );
if ( result == followLink )
linkClicked( r.linkUrl() );
else
if ( result == lookupSelection )
showDefinition( selectedText, getGroup( ui.definition->url() ) );
}
#if 0
printf( "%s\n", r.linkUrl().isEmpty() ? "null" : "not null" );
printf( "url = %s\n", r.linkUrl().toString().toLocal8Bit().data() );
printf( "title = %s\n", r.title().toLocal8Bit().data() );
#endif
}
void ArticleView::showEvent( QShowEvent * ev )
{
QFrame::showEvent( ev );
ui.searchFrame->hide();
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __ARTICLEVIEW_HH_INCLUDED__
#define __ARTICLEVIEW_HH_INCLUDED__
#include <QWebView>
#include <QUrl>
#include "article_netmgr.hh"
#include "instances.hh"
#include "ui_articleview.h"
/// A widget with the web view tailored to view and handle articles -- it
/// uses the appropriate netmgr, handles link clicks, rmb clicks etc
class ArticleView: public QFrame
{
Q_OBJECT
ArticleNetworkAccessManager & articleNetMgr;
Instances::Groups const & groups;
bool popupView;
Ui::ArticleView ui;
public:
/// The popupView flag influences contents of the context menus to be
/// appropriate to the context of the view.
/// The groups aren't copied -- rather than that, the reference is kept
ArticleView( QWidget * parent,
ArticleNetworkAccessManager &,
Instances::Groups const &,
bool popupView );
/// Shows the definition of the given word with the given group
void showDefinition( QString const & word, QString const & group );
/// Goes back in history
void back()
{ ui.definition->back(); }
/// Goes forward in history
void forward()
{ ui.definition->forward(); }
signals:
void iconChanged( ArticleView *, QIcon const & icon );
void titleChanged( ArticleView *, QString const & title );
private slots:
void handleTitleChanged( QString const & title );
void handleUrlChanged( QUrl const & url );
void linkClicked( QUrl const & );
void contextMenuRequested( QPoint const & );
private:
/// Deduces group from the url. If there doesn't seem to be any group,
/// returns empty string.
QString getGroup( QUrl const & );
protected:
// We need this to hide the search bar when we're showed
void showEvent( QShowEvent * );
};
#endif

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<ui version="4.0" >
<class>ArticleView</class>
<widget class="QWidget" name="ArticleView" >
<property name="geometry" >
<rect>
<x>0</x>
<y>0</y>
<width>833</width>
<height>634</height>
</rect>
</property>
<property name="windowTitle" >
<string>Form</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout_2" >
<property name="margin" >
<number>0</number>
</property>
<item>
<widget class="QFrame" name="frame" >
<property name="frameShape" >
<enum>QFrame::StyledPanel</enum>
</property>
<property name="frameShadow" >
<enum>QFrame::Raised</enum>
</property>
<layout class="QVBoxLayout" name="verticalLayout" >
<property name="margin" >
<number>0</number>
</property>
<item>
<widget class="QWebView" name="definition" >
<property name="palette" >
<palette>
<active>
<colorrole role="Base" >
<brush brushstyle="SolidPattern" >
<color alpha="255" >
<red>254</red>
<green>253</green>
<blue>235</blue>
</color>
</brush>
</colorrole>
<colorrole role="Window" >
<brush brushstyle="SolidPattern" >
<color alpha="255" >
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
</active>
<inactive>
<colorrole role="Base" >
<brush brushstyle="SolidPattern" >
<color alpha="255" >
<red>254</red>
<green>253</green>
<blue>235</blue>
</color>
</brush>
</colorrole>
<colorrole role="Window" >
<brush brushstyle="SolidPattern" >
<color alpha="255" >
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
</inactive>
<disabled>
<colorrole role="Base" >
<brush brushstyle="SolidPattern" >
<color alpha="255" >
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
<colorrole role="Window" >
<brush brushstyle="SolidPattern" >
<color alpha="255" >
<red>255</red>
<green>255</green>
<blue>255</blue>
</color>
</brush>
</colorrole>
</disabled>
</palette>
</property>
<property name="url" >
<url>
<string>about:blank</string>
</url>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QFrame" name="searchFrame" >
<property name="frameShape" >
<enum>QFrame::NoFrame</enum>
</property>
<property name="frameShadow" >
<enum>QFrame::Raised</enum>
</property>
<layout class="QHBoxLayout" name="horizontalLayout" >
<property name="margin" >
<number>0</number>
</property>
<item>
<widget class="QToolButton" name="searchCloseButton" >
<property name="text" >
<string>x</string>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="label" >
<property name="text" >
<string>Find:</string>
</property>
</widget>
</item>
<item>
<widget class="QLineEdit" name="searchText" />
</item>
<item>
<spacer name="horizontalSpacer" >
<property name="orientation" >
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0" >
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
</layout>
</widget>
</item>
</layout>
</widget>
<customwidgets>
<customwidget>
<class>QWebView</class>
<extends>QWidget</extends>
<header>QtWebKit/QWebView</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "bgl.hh"
#include "btreeidx.hh"
#include "bgl_babylon.hh"
#include "file.hh"
#include "folding.hh"
#include "utf8.hh"
#include "chunkedstorage.hh"
#include <map>
#include <set>
#include <list>
#include <zlib.h>
#include <ctype.h>
namespace Bgl {
using std::map;
using std::multimap;
using std::set;
using std::wstring;
using std::list;
using std::pair;
using BtreeIndexing::WordArticleLink;
using BtreeIndexing::IndexedWords;
namespace
{
enum
{
Signature = 0x584c4742, // BGLX on little-endian, XLGB on big-endian
CurrentFormatVersion = 12 + BtreeIndexing::FormatVersion
};
struct IdxHeader
{
uint32_t signature; // First comes the signature, BGLX
uint32_t formatVersion; // File format version, currently 1.
uint32_t parserVersion; // Version of the parser used to parse the BGL file.
// If it's lower than the current one, the file is to
// be re-parsed.
uint32_t foldingVersion; // Version of the folding algorithm used when building
// index. If it's different from the current one,
// the file is to be rebuilt.
uint32_t articleCount; // Total number of articles, for informative purposes only
uint32_t wordCount; // Total number of words, for informative purposes only
/// Add more fields here, like name, description, author and such.
uint32_t chunksOffset; // The offset to chunks' storage
uint32_t indexOffset; // The offset of the index in the file.
uint32_t resourceListOffset; // The offset of the list of resources
uint32_t resourcesCount; // Number of resources stored
} __attribute__((packed));
bool indexIsOldOrBad( string const & indexFile )
{
File::Class idx( indexFile, "rb" );
IdxHeader header;
return idx.readRecords( &header, sizeof( header ), 1 ) != 1 ||
header.signature != Signature ||
header.formatVersion != CurrentFormatVersion ||
header.parserVersion != Babylon::ParserVersion ||
header.foldingVersion != Folding::Version;
}
// Removes the $1$-like postfix
string removePostfix( string const & in )
{
if ( in.size() && in[ in.size() - 1 ] == '$' )
{
// Find the end of it and cut it, barring any unexpectedness
for( long x = in.size() - 2; x >= 0; x-- )
{
if ( in[ x ] == '$' )
return in.substr( 0, x );
else
if ( !isdigit( in[ x ] ) )
break;
}
}
return in;
}
// Removes any leading or trailing whitespace
void trimWs( string & word )
{
if ( word.size() )
{
unsigned begin = 0;
while( begin < word.size() && isspace( word[ begin ] ) )
++begin;
if ( begin == word.size() ) // Consists of ws entirely?
word.clear();
else
{
unsigned end = word.size();
// Doesn't consist of ws entirely, so must end with just isspace()
// condition.
while( isspace( word[ end - 1 ] ) )
--end;
if ( end != word.size() || begin )
word = string( word, begin, end - begin );
}
}
}
void addEntryToIndex( string & word,
uint32_t articleOffset,
IndexedWords & indexedWords,
vector< wchar_t > & wcharBuffer )
{
// Strip any leading or trailing whitespaces
trimWs( word );
// Check the input word for a superscript postfix ($1$, $2$ etc), which
// signifies different meaning in Bgl files. We emit different meaning
// as different articles, but they appear in the index as the same word.
if ( word.size() && word[ word.size() - 1 ] == '$' )
{
word = removePostfix( word );
trimWs( word );
}
// Convert the word from utf8 to wide chars
if ( wcharBuffer.size() <= word.size() )
wcharBuffer.resize( word.size() + 1 );
long result = Utf8::decode( word.c_str(), word.size(),
&wcharBuffer.front() );
if ( result < 0 )
{
fprintf( stderr, "Failed to decode utf8 of headword %s, skipping it.\n",
word.c_str() );
return;
}
wcharBuffer[ result ] = 0;
// Now make its folded version
wstring folded = Folding::apply( &wcharBuffer.front() );
/// Try to conserve the memory usage of the string
folded.reserve( folded.size() );
// Insert new entry into an index
IndexedWords::iterator i = indexedWords.insert(
IndexedWords::value_type( folded, vector< WordArticleLink >() ) ).first;
// Try to conserve memory somewhat -- slow insertions are ok
i->second.reserve( i->second.size() + 1 );
i->second.push_back( WordArticleLink( word, articleOffset ) );
}
DEF_EX( exFailedToDecompressArticle, "Failed to decompress article's body", Dictionary::Ex )
DEF_EX( exChunkIndexOutOfRange, "Chunk index is out of range", Dictionary::Ex )
class BglDictionary: public BtreeIndexing::BtreeDictionary
{
File::Class idx;
IdxHeader idxHeader;
string dictionaryName;
ChunkedStorage::Reader chunks;
public:
BglDictionary( string const & id, string const & indexFile,
string const & dictionaryFile );
virtual string getName() throw()
{ return dictionaryName; }
virtual map< Dictionary::Property, string > getProperties() throw()
{ return map< Dictionary::Property, string >(); }
virtual unsigned long getArticleCount() throw()
{ return idxHeader.articleCount; }
virtual unsigned long getWordCount() throw()
{ return idxHeader.wordCount; }
virtual vector< wstring > findHeadwordsForSynonym( wstring const & )
throw( std::exception );
virtual string getArticle( wstring const &, vector< wstring > const & alts )
throw( Dictionary::exNoSuchWord, std::exception );
virtual void getResource( string const & name,
vector< char > & data ) throw( Dictionary::exNoSuchResource,
std::exception );
private:
/// Loads an article with the given offset, filling the given strings.
void loadArticle( uint32_t offset, string & headword,
string & displayedHeadword, string & articleText );
void replaceCharsetEntities( string & );
};
BglDictionary::BglDictionary( string const & id, string const & indexFile,
string const & dictionaryFile ):
BtreeDictionary( id, vector< string >( 1, dictionaryFile ) ),
idx( indexFile, "rb" ),
idxHeader( idx.read< IdxHeader >() ),
chunks( idx, idxHeader.chunksOffset )
{
idx.seek( sizeof( idxHeader ) );
// Read the dictionary's name
size_t len = idx.read< uint32_t >();
vector< char > nameBuf( len );
idx.read( &nameBuf.front(), len );
dictionaryName = string( &nameBuf.front(), len );
// Initialize the index
idx.seek( idxHeader.indexOffset );
openIndex( idx );
}
void BglDictionary::loadArticle( uint32_t offset, string & headword,
string & displayedHeadword,
string & articleText )
{
vector< char > chunk;
char * articleData = chunks.getBlock( offset, chunk );
headword = articleData;
displayedHeadword = articleData + headword.size() + 1;
articleText =
string( articleData + headword.size() +
displayedHeadword.size() + 2 );
}
vector< wstring > BglDictionary::findHeadwordsForSynonym( wstring const & str )
throw( std::exception )
{
vector< wstring > result;
vector< WordArticleLink > chain = findArticles( str );
wstring caseFolded = Folding::applySimpleCaseOnly( str );
for( unsigned x = 0; x < chain.size(); ++x )
{
string headword, displayedHeadword, articleText;
loadArticle( chain[ x ].articleOffset,
headword, displayedHeadword, articleText );
wstring headwordDecoded = Utf8::decode( removePostfix( headword ) );
if ( caseFolded != Folding::applySimpleCaseOnly( headwordDecoded ) )
{
// The headword seems to differ from the input word, which makes the
// input word its synonym.
result.push_back( headwordDecoded );
}
}
return result;
}
// Converts a $1$-like postfix to a <sup>1</sup> one
string postfixToSuperscript( string const & in )
{
if ( !in.size() || in[ in.size() - 1 ] != '$' )
return in;
for( long x = in.size() - 2; x >= 0; x-- )
{
if ( in[ x ] == '$' )
{
if ( in.size() - x - 2 > 2 )
{
// Large postfixes seem like something we wouldn't want to show --
// some dictionaries seem to have each word numbered using the
// postfix.
return in.substr( 0, x );
}
else
return in.substr( 0, x ) + "<sup>" + in.substr( x + 1, in.size() - x - 2 ) + "</sup>";
}
else
if ( !isdigit( in[ x ] ) )
break;
}
return in;
}
string BglDictionary::getArticle( wstring const & word,
vector< wstring > const & alts )
throw( Dictionary::exNoSuchWord, std::exception )
{
vector< WordArticleLink > chain = findArticles( word );
for( unsigned x = 0; x < alts.size(); ++x )
{
/// Make an additional query for each alt
vector< WordArticleLink > altChain = findArticles( alts[ x ] );
chain.insert( chain.end(), altChain.begin(), altChain.end() );
}
multimap< wstring, pair< string, string > > mainArticles, alternateArticles;
set< uint32_t > articlesIncluded; // Some synonims make it that the articles
// appear several times. We combat this
// by only allowing them to appear once.
wstring wordCaseFolded = Folding::applySimpleCaseOnly( word );
for( unsigned x = 0; x < chain.size(); ++x )
{
if ( articlesIncluded.find( chain[ x ].articleOffset ) != articlesIncluded.end() )
continue; // We already have this article in the body.
// Now grab that article
string headword, displayedHeadword, articleText;
loadArticle( chain[ x ].articleOffset,
headword, displayedHeadword, articleText );
// Ok. Now, does it go to main articles, or to alternate ones? We list
// main ones first, and alternates after.
// We do the case-folded and postfix-less comparison here.
wstring headwordStripped =
Folding::applySimpleCaseOnly( Utf8::decode( removePostfix( headword ) ) );
multimap< wstring, pair< string, string > > & mapToUse =
( wordCaseFolded == headwordStripped ) ?
mainArticles : alternateArticles;
mapToUse.insert( pair< wstring, pair< string, string > >(
Folding::applySimpleCaseOnly( Utf8::decode( headword ) ),
pair< string, string >(
displayedHeadword.size() ? displayedHeadword : headword,
articleText ) ) );
articlesIncluded.insert( chain[ x ].articleOffset );
}
if ( mainArticles.empty() && alternateArticles.empty() )
throw Dictionary::exNoSuchWord();
string result;
multimap< wstring, pair< string, string > >::const_iterator i;
string cleaner = "</font>""</font>""</font>""</font>""</font>""</font>"
"</font>""</font>""</font>""</font>""</font>""</font>"
"</b></b></b></b></b></b></b></b>"
"</i></i></i></i></i></i></i></i>";
for( i = mainArticles.begin(); i != mainArticles.end(); ++i )
{
result += "<h3>";
result += postfixToSuperscript( i->second.first );
result += "</h3>";
result += i->second.second;
result += cleaner;
}
for( i = alternateArticles.begin(); i != alternateArticles.end(); ++i )
{
result += "<h3>";
result += postfixToSuperscript( i->second.first );
result += "</h3>";
result += i->second.second;
result += cleaner;
}
// Do some cleanups in the text
replaceCharsetEntities( result );
return result;
}
void BglDictionary::getResource( string const & name,
vector< char > & data )
throw( Dictionary::exNoSuchResource, std::exception )
{
string nameLowercased = name;
for( string::iterator i = nameLowercased.begin(); i != nameLowercased.end();
++i )
*i = tolower( *i );
idx.seek( idxHeader.resourceListOffset );
for( size_t count = idxHeader.resourcesCount; count--; )
{
vector< char > nameData( idx.read< uint32_t >() );
idx.read( &nameData.front(), nameData.size() );
for( size_t x = nameData.size(); x--; )
nameData[ x ] = tolower( nameData[ x ] );
uint32_t offset = idx.read< uint32_t >();
if ( string( &nameData.front(), nameData.size() ) == nameLowercased )
{
// We have a match.
idx.seek( offset );
data.resize( idx.read< uint32_t >() );
vector< unsigned char > compressedData( idx.read< uint32_t >() );
idx.read( &compressedData.front(), compressedData.size() );
unsigned long decompressedLength = data.size();
if ( uncompress( (unsigned char *)&data.front(),
&decompressedLength,
&compressedData.front(),
compressedData.size() ) != Z_OK ||
decompressedLength != data.size() )
{
printf( "Failed to decompress resource %s, ignoring it.\n",
name.c_str() );
throw Dictionary::exNoSuchResource();
}
return;
}
}
throw Dictionary::exNoSuchResource();
}
/// Replaces <CHARSET c="t">1234;</CHARSET> occurences with &#x1234;
void BglDictionary::replaceCharsetEntities( string & text )
{
string lowercased = text;
// Make a lowercased version of text, used for searching only. Only touch
// symbols < 0x80 to avoid any weird results.
for( unsigned x = lowercased.size(); x--; )
if ( (unsigned char )lowercased[ x ] < 0x80 )
lowercased[ x ] = tolower( lowercased[ x ] );
size_t prevPos = 0;
for( ;; )
{
size_t pos = lowercased.find( "<charset c=\"t\">", prevPos );
if ( pos == string::npos )
break;
if ( lowercased.size() - pos < 30 )
{
// This is not right, the string is too short, leave it alone
break;
}
prevPos = pos + 1;
if ( lowercased.substr( pos + 15 + 4, 11 ) != ";</charset>" )
{
// The ending doesn't match
printf( "!!!!!!ending mismatch\n" );
continue;
}
// Check if digits are all hex
if ( !isxdigit( lowercased[ pos + 15 ] ) ||
!isxdigit( lowercased[ pos + 16 ] ) ||
!isxdigit( lowercased[ pos + 17 ] ) ||
!isxdigit( lowercased[ pos + 18 ] ) )
{
printf( "!!!!!!!!not hex digits\n" );
continue;
}
// Ok, replace now.
lowercased.replace( pos, 15, "&#x" );
lowercased.erase( pos + 8, 10 );
text.replace( pos, 15, "&#x" );
text.erase( pos + 8, 10 );
}
prevPos = 0;
// Copy-pasted version for <charset c=t>. This should all be replaced
// by regexps.
for( ;; )
{
size_t pos = lowercased.find( "<charset c=t>", prevPos );
if ( pos == string::npos )
break;
if ( lowercased.size() - pos < 28 )
{
// This is not right, the string is too short, leave it alone
break;
}
prevPos = pos + 1;
if ( lowercased.substr( pos + 13 + 4, 11 ) != ";</charset>" )
{
// The ending doesn't match
printf( "!!!!!!ending mismatch\n" );
continue;
}
// Check if digits are all hex
if ( !isxdigit( lowercased[ pos + 13 ] ) ||
!isxdigit( lowercased[ pos + 14 ] ) ||
!isxdigit( lowercased[ pos + 15 ] ) ||
!isxdigit( lowercased[ pos + 16 ] ) )
{
printf( "!!!!!!!!not hex digits\n" );
continue;
}
// Ok, replace now.
lowercased.replace( pos, 13, "&#x" );
lowercased.erase( pos + 8, 10 );
text.replace( pos, 13, "&#x" );
text.erase( pos + 8, 10 );
}
}
class ResourceHandler: public Babylon::ResourceHandler
{
File::Class & idxFile;
list< pair< string, uint32_t > > resources;
public:
ResourceHandler( File::Class & idxFile_ ): idxFile( idxFile_ )
{}
list< pair< string, uint32_t > > const & getResources() const
{ return resources; }
protected:
virtual void handleBabylonResource( string const & filename,
char const * data, size_t size );
};
void ResourceHandler::handleBabylonResource( string const & filename,
char const * data, size_t size )
{
//printf( "Handling resource file %s (%u bytes)\n", filename.c_str(), size );
vector< unsigned char > compressedData( compressBound( size ) );
unsigned long compressedSize = compressedData.size();
if ( compress( &compressedData.front(), &compressedSize,
(unsigned char const *) data, size ) != Z_OK )
{
fprintf( stderr, "Failed to compress the body of resource %s, dropping it.\n",
filename.c_str() );
return;
}
resources.push_back( pair< string, uint32_t >( filename, idxFile.tell() ) );
idxFile.write< uint32_t >( size );
idxFile.write< uint32_t >( compressedSize );
idxFile.write( &compressedData.front(), compressedSize );
}
}
vector< sptr< Dictionary::Class > > Format::makeDictionaries(
vector< string > const & fileNames,
string const & indicesDir,
Dictionary::Initializing & initializing )
throw( std::exception )
{
vector< sptr< Dictionary::Class > > dictionaries;
for( vector< string >::const_iterator i = fileNames.begin(); i != fileNames.end();
++i )
{
// Skip files with the extensions different to .bgl to speed up the
// scanning
if ( i->size() < 4 ||
strcasecmp( i->c_str() + ( i->size() - 4 ), ".bgl" ) != 0 )
continue;
Babylon b( *i );
if ( !b.open() )
continue;
// Got the file -- check if we need to rebuid the index
vector< string > dictFiles( 1, *i );
string dictId = makeDictionaryId( dictFiles );
string indexFile = indicesDir + dictId;
if ( needToRebuildIndex( dictFiles, indexFile ) || indexIsOldOrBad( indexFile ) )
{
// Building the index
std::string sourceCharset, targetCharset;
if ( !b.read( sourceCharset, targetCharset ) )
{
fprintf( stderr, "Failed to start reading from %s, skipping it\n", i->c_str() );
continue;
}
initializing.indexingDictionary( b.title() );
File::Class idx( indexFile, "wb" );
IdxHeader idxHeader;
memset( &idxHeader, 0, sizeof( idxHeader ) );
// We write a dummy header first. At the end of the process the header
// will be rewritten with the right values.
idx.write( idxHeader );
idx.write< uint32_t >( b.title().size() );
idx.write( b.title().data(), b.title().size() );
// This is our index data that we accumulate during the loading process.
// For each new word encountered, we emit the article's body to the file
// immediately, inserting the word itself and its offset in this map.
// This map maps folded words to the original words and the corresponding
// articles' offsets.
IndexedWords indexedWords;
// We use this buffer to decode utf8 into it.
vector< wchar_t > wcharBuffer;
ChunkedStorage::Writer chunks( idx );
uint32_t articleCount = 0, wordCount = 0;
ResourceHandler resourceHandler( idx );
b.setResourcePrefix( string( "bres://" ) + dictId + "/" );
for( ; ; )
{
bgl_entry e = b.readEntry( &resourceHandler );
if ( e.headword.empty() )
break;
// Save the article's body itself first
uint32_t articleAddress = chunks.startNewBlock();
chunks.addToBlock( e.headword.c_str(), e.headword.size() + 1 );
chunks.addToBlock( e.displayedHeadword.c_str(), e.displayedHeadword.size() + 1 );
chunks.addToBlock( e.definition.c_str(), e.definition.size() + 1 );
// Add entries to the index
addEntryToIndex( e.headword, articleAddress, indexedWords, wcharBuffer );
for( unsigned x = 0; x < e.alternates.size(); ++x )
addEntryToIndex( e.alternates[ x ], articleAddress, indexedWords, wcharBuffer );
wordCount += 1 + e.alternates.size();
++articleCount;
}
// Finish with the chunks
idxHeader.chunksOffset = chunks.finish();
printf( "Writing index...\n" );
// Good. Now build the index
idxHeader.indexOffset = BtreeIndexing::buildIndex( indexedWords, idx );
// Save the resource's list.
idxHeader.resourceListOffset = idx.tell();
idxHeader.resourcesCount = resourceHandler.getResources().size();
for( list< pair< string, uint32_t > >::const_iterator i =
resourceHandler.getResources().begin();
i != resourceHandler.getResources().end(); ++i )
{
idx.write< uint32_t >( i->first.size() );
idx.write( i->first.data(), i->first.size() );
idx.write< uint32_t >( i->second );
}
// That concludes it. Update the header.
idxHeader.signature = Signature;
idxHeader.formatVersion = CurrentFormatVersion;
idxHeader.parserVersion = Babylon::ParserVersion;
idxHeader.foldingVersion = Folding::Version;
idxHeader.articleCount = articleCount;
idxHeader.wordCount = wordCount;
idx.rewind();
idx.write( &idxHeader, sizeof( idxHeader ) );
}
dictionaries.push_back( new BglDictionary( dictId,
indexFile,
*i ) );
}
return dictionaries;
}
}

28
src/bgl.hh Normal file
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@ -0,0 +1,28 @@
/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __BGL_HH_INCLUDED__
#define __BGL_HH_INCLUDED__
#include "dictionary.hh"
/// Support for the Babylon's .bgl dictionaries.
namespace Bgl {
using std::vector;
using std::string;
class Format: public Dictionary::Format
{
public:
virtual vector< sptr< Dictionary::Class > > makeDictionaries(
vector< string > const & fileNames,
string const & indicesDir,
Dictionary::Initializing & )
throw( std::exception );
};
}
#endif

547
src/bgl_babylon.cc Normal file
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@ -0,0 +1,547 @@
/***************************************************************************
* Copyright (C) 2007 by Raul Fernandes and Karl Grill *
* rgbr@yahoo.com.br *
* *
* 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. *
***************************************************************************/
/* Various improvements were made by Konstantin Isakov for the GoldenDict
* program. */
#include "bgl_babylon.hh"
#include<stdlib.h>
#include<stdio.h>
#include <iconv.h>
#ifdef _WIN32
#include <io.h>
#define DUP _dup
#else
#define DUP dup
#endif
Babylon::Babylon( std::string filename )
{
m_filename = filename;
file = NULL;
}
Babylon::~Babylon()
{
close();
}
bool Babylon::open()
{
FILE *f;
unsigned char buf[6];
int i;
f = fopen( m_filename.c_str(), "rb" );
if( f == NULL )
return false;
i = fread( buf, 1, 6, f );
/* First four bytes: BGL signature 0x12340001 or 0x12340002 (big-endian) */
if( i < 6 || memcmp( buf, "\x12\x34\x00", 3 ) || buf[3] == 0 || buf[3] > 2 )
{
fclose( f );
return false;
}
/* Calculate position of gz header */
i = buf[4] << 8 | buf[5];
if( i < 6 )
{
fclose( f );
return false;
}
if( fseek( f, i, SEEK_SET ) ) /* can't seek - emulate */
for(int j=0;j < i - 6;j++) fgetc( f );
if( ferror( f ) || feof( f ) )
{
fclose( f );
return false;
}
/* we need to flush the file because otherwise some nfs mounts don't seem
* to properly update the file position for the following reopen */
fflush( f );
file = gzdopen( DUP( fileno( f ) ), "r" );
fclose( f );
if( file == NULL )
return false;
return true;
}
void Babylon::close()
{
if ( file )
{
gzclose( file );
file = 0;
}
}
bool Babylon::readBlock( bgl_block &block )
{
if( gzeof( file ) || file == NULL )
return false;
block.length = bgl_readnum( 1 );
block.type = block.length & 0xf;
if( block.type == 4 ) return false; // end of file marker
block.length >>= 4;
block.length = block.length < 4 ? bgl_readnum( block.length + 1 ) : block.length - 4 ;
if( block.length )
{
block.data = (char *)malloc( block.length );
gzread( file, block.data, block.length );
}
return true;
}
unsigned int Babylon::bgl_readnum( int bytes )
{
unsigned char buf[4];
unsigned val = 0;
if ( bytes < 1 || bytes > 4 ) return (0);
gzread( file, buf, bytes );
for(int i=0;i<bytes;i++) val= (val << 8) | buf[i];
return val;
}
bool Babylon::read(std::string &source_charset, std::string &target_charset)
{
if( file == NULL ) return false;
bgl_block block;
unsigned int pos;
unsigned int type;
std::string headword;
std::string definition;
m_sourceCharset = source_charset;
m_targetCharset = target_charset;
m_numEntries = 0;
while( readBlock( block ) )
{
headword.clear();
definition.clear();
switch( block.type )
{
case 0:
switch( block.data[0] )
{
case 8:
type = (unsigned int)block.data[2];
if( type > 64 ) type -= 65;
if ( type >= 14 )
type = 0;
m_defaultCharset = bgl_charset[type];
break;
default:
break;
}
break;
case 1:
case 10:
// Only count entries
m_numEntries++;
break;
case 3:
pos = 2;
switch( block.data[1] )
{
case 1:
headword.reserve( block.length - 2 );
for(unsigned int a=0;a<block.length-2;a++) headword += block.data[pos++];
m_title = headword;
break;
case 2:
headword.reserve( block.length - 2 );
for(unsigned int a=0;a<block.length-2;a++) headword += block.data[pos++];
m_author = headword;
break;
case 3:
headword.reserve( block.length - 2 );
for(unsigned int a=0;a<block.length-2;a++) headword += block.data[pos++];
m_email = headword;
break;
case 4:
headword.reserve( block.length - 2 );
for(unsigned int a=0;a<block.length-2;a++) headword += block.data[pos++];
m_copyright = headword;
break;
case 7:
headword = bgl_language[(unsigned char)(block.data[5])];
m_sourceLang = headword;
break;
case 8:
headword = bgl_language[(unsigned char)(block.data[5])];
m_targetLang = headword;
break;
case 9:
headword.reserve( block.length - 2 );
for(unsigned int a=0;a<block.length-2;a++) {
if (block.data[pos] == '\r') {
} else if (block.data[pos] == '\n') {
headword += "<br>";
} else {
headword += block.data[pos];
}
pos++;
}
m_description = headword;
break;
case 26:
type = (unsigned int)block.data[2];
if( type > 64 ) type -= 65;
if ( type >= 14 )
type = 0;
if (m_sourceCharset.empty())
m_sourceCharset = bgl_charset[type];
break;
case 27:
type = (unsigned int)block.data[2];
if( type > 64 ) type -= 65;
if ( type >= 14 )
type = 0;
if (m_targetCharset.empty())
m_targetCharset = bgl_charset[type];
break;
default:
break;
}
break;
default:
;
}
if( block.length ) free( block.data );
}
gzseek( file, 0, SEEK_SET );
convertToUtf8( m_title, TARGET_CHARSET );
convertToUtf8( m_author, TARGET_CHARSET );
convertToUtf8( m_email, TARGET_CHARSET );
convertToUtf8( m_copyright, TARGET_CHARSET );
convertToUtf8( m_description, TARGET_CHARSET );
printf("Default charset: %s\nSource Charset: %s\nTargetCharset: %s\n", m_defaultCharset.c_str(), m_sourceCharset.c_str(), m_targetCharset.c_str());
return true;
}
bgl_entry Babylon::readEntry( ResourceHandler * resourceHandler )
{
bgl_entry entry;
if( file == NULL )
{
entry.headword = "";
return entry;
}
bgl_block block;
unsigned int len, pos;
std::string headword, displayedHeadword;
std::string definition;
std::string temp;
std::vector<std::string> alternates;
std::string alternate;
while( readBlock( block ) )
{
switch( block.type )
{
case 2:
{
pos = 0;
len = (unsigned char)block.data[pos++];
std::string filename( block.data+pos, len );
//if (filename != "8EAF66FD.bmp" && filename != "C2EEF3F6.html") {
pos += len;
if ( resourceHandler )
resourceHandler->handleBabylonResource( filename,
block.data + pos,
block.length - pos );
#if 0
FILE *ifile = fopen(filename.c_str(), "w");
fwrite(block.data + pos, 1, block.length -pos, ifile);
fclose(ifile);
#endif
break;
}
case 1:
case 10:
alternate.clear();
headword.clear();
displayedHeadword.clear();
definition.clear();
temp.clear();
pos = 0;
// Headword
len = 0;
len = (unsigned char)block.data[pos++];
headword.reserve( len );
for(unsigned int a=0;a<len;a++)
headword += block.data[pos++];
convertToUtf8( headword, SOURCE_CHARSET );
// Definition
len = 0;
len = (unsigned char)block.data[pos++] << 8;
len |= (unsigned char)block.data[pos++];
definition.reserve( len );
for(unsigned int a=0;a<len;a++)
{
if( (unsigned char)block.data[pos] == 0x0a )
{
definition += "<br>";
pos++;
}
else if ( (unsigned char)block.data[pos] == 6 )
{
// Something
pos += 2;
++a;
}
else if ( (unsigned char)block.data[pos] >= 0x40 &&
len - a >= 2 &&
(unsigned char)block.data[pos + 1 ] == 0x18 )
{
// Hidden displayed headword (a displayed headword which
// contains some garbage and shouldn't probably be visible).
unsigned length = (unsigned char)block.data[ pos ] - 0x3F;
if ( length > len - a - 2 )
{
fprintf( stderr, "Hidden displayed headword is too large %s\n", headword.c_str() );
pos += len - a;
break;
}
pos += length + 2;
a += length + 1;
}
else if ( (unsigned char)block.data[pos] == 0x18 )
{
// Displayed headword
unsigned length = (unsigned char)block.data[ pos + 1 ];
if ( length > len - a - 2 )
{
fprintf( stderr, "Displayed headword's length is too large for headword %s\n", headword.c_str() );
pos += len - a;
break;
}
displayedHeadword = std::string( block.data + pos + 2, length );
pos += length + 2;
a += length + 1;
}
else if ( (unsigned char)block.data[pos] == 0x50 && len - a - 1 >= 2 &&
(unsigned char)block.data[pos + 1 ] == 0x1B )
{
// 1-byte-sized transcription
unsigned length = (unsigned char)block.data[pos + 2 ];
if ( length > len - a - 3 )
{
fprintf( stderr, "1-byte-sized transcription's length is too large for headword %s\n", headword.c_str() );
pos += len - a;
break;
}
std::string transcription( block.data + pos + 3, length );
definition = std::string( "<span class=\"bgltrn\">" ) + transcription + "</span>" + definition;
pos += length + 3;
a += length + 2;
}
else if ( (unsigned char)block.data[pos] == 0x60 && len - a - 1 >= 3 &&
(unsigned char)block.data[pos + 1 ] == 0x1B )
{
// 2-byte-sized transcription
unsigned length = (unsigned char)block.data[pos + 2 ];
length <<= 8;
length += (unsigned char)block.data[pos + 3 ];
if ( length > len - a - 4)
{
fprintf( stderr, "2-byte-sized transcription's length is too large for headword %s\n", headword.c_str() );
pos += len - a;
break;
}
std::string transcription( block.data + pos + 4, length );
definition = std::string( "<span class=\"bgltrn\">" ) + transcription + "</span>" + definition;
pos += length + 4;
a += length + 3;
}
else if ( (unsigned char)block.data[pos] == 0x1E )
{
// Resource reference begin marker
definition += m_resourcePrefix;
++pos;
}
else if ( (unsigned char)block.data[pos] == 0x1F )
{
// Resource reference end marker
++pos;
}
else if( (unsigned char)block.data[pos] < 0x20 )
{
if( a <= len - 3 && block.data[pos] == 0x14 && block.data[pos+1] == 0x02 ) {
int index = (unsigned char)block.data[pos+2] - 0x30;
if (index >= 0 && index <= 10) {
definition = "<span class=\"bglpos\">" + partOfSpeech[index] + "</span> " + definition;
}
pos += 3;
a += 2;
//pos += len - a;
//break;
} else if (block.data[pos] == 0x14) {
pos++;
} else {
definition += block.data[pos++];
}
}else definition += block.data[pos++];
}
convertToUtf8( definition, TARGET_CHARSET );
if ( displayedHeadword.size() )
convertToUtf8( displayedHeadword, TARGET_CHARSET );
// Alternate forms
while( pos != block.length )
{
len = (unsigned char)block.data[pos++];
alternate.reserve( len );
for(unsigned int a=0;a<len;a++) alternate += block.data[pos++];
convertToUtf8( alternate, SOURCE_CHARSET );
alternates.push_back( alternate );
alternate.clear();
}
entry.headword = headword;
entry.displayedHeadword = displayedHeadword;
entry.definition = definition;
entry.alternates = alternates;
if( block.length ) free( block.data );
return entry;
break;
default:
;
}
if( block.length ) free( block.data );
}
entry.headword = "";
return entry;
}
void Babylon::convertToUtf8( std::string &s, unsigned int type )
{
if( s.size() < 1 ) return;
if( type > 2 ) return;
std::string charset;
switch( type )
{
case DEFAULT_CHARSET:
if(!m_defaultCharset.empty()) charset = m_defaultCharset;
else charset = m_sourceCharset;
break;
case SOURCE_CHARSET:
if(!m_sourceCharset.empty()) charset = m_sourceCharset;
else charset = m_defaultCharset;
break;
case TARGET_CHARSET:
if(!m_targetCharset.empty()) charset = m_targetCharset;
else charset = m_defaultCharset;
break;
default:
;
}
iconv_t cd = iconv_open( "UTF-8", charset.c_str() );
if( cd == (iconv_t)(-1) )
{
printf( "Error openning iconv library\n" );
exit(1);
}
char *outbuf, *defbuf;
size_t inbufbytes, outbufbytes;
inbufbytes = s.size();
outbufbytes = s.size() * 6;
#ifdef _WIN32
const char *inbuf;
inbuf = s.data();
#else
char *inbuf;
inbuf = (char *)s.data();
#endif
outbuf = (char*)malloc( outbufbytes + 1 );
memset( outbuf, '\0', outbufbytes + 1 );
defbuf = outbuf;
while (inbufbytes) {
if (iconv(cd, &inbuf, &inbufbytes, &outbuf, &outbufbytes) == (size_t)-1) {
printf( "\n%s\n", inbuf );
printf( "Error in iconv conversion\n" );
inbuf++;
inbufbytes--;
}
}
s = std::string( defbuf );
free( defbuf );
iconv_close( cd );
}

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src/bgl_babylon.hh Normal file
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/***************************************************************************
* Copyright (C) 2007 by Raul Fernandes and Karl Grill *
* rgbr@yahoo.com.br *
* *
* 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. *
***************************************************************************/
#ifndef BABYLON_H
#define BABYLON_H
#include <stdlib.h>
#include <zlib.h>
#include <string>
#include <vector>
const std::string bgl_language[] = {
"English",
"French",
"Italian",
"Spanish",
"Dutch",
"Portuguese",
"German",
"Russian",
"Japanese",
"Traditional Chinese",
"Simplified Chinese",
"Greek",
"Korean",
"Turkish",
"Hebrew",
"Arabic",
"Thai",
"Other",
"Other Simplified Chinese dialects",
"Other Traditional Chinese dialects",
"Other Eastern-European languages",
"Other Western-European languages",
"Other Russian languages",
"Other Japanese languages",
"Other Baltic languages",
"Other Greek languages",
"Other Korean dialects",
"Other Turkish dialects",
"Other Thai dialects",
"Polish",
"Hungarian",
"Czech",
"Lithuanian",
"Latvian",
"Catalan",
"Croatian",
"Serbian",
"Slovak",
"Albanian",
"Urdu",
"Slovenian",
"Estonian",
"Bulgarian",
"Danish",
"Finnish",
"Icelandic",
"Norwegian",
"Romanian",
"Swedish",
"Ukrainian",
"Belarusian",
"Farsi",
"Basque",
"Macedonian",
"Afrikaans",
"Faeroese",
"Latin",
"Esperanto",
"Tamazight",
"Armenian"};
const std::string bgl_charsetname[] = {
"Default" ,
"Latin",
"Eastern European",
"Cyrillic",
"Japanese",
"Traditional Chinese",
"Simplified Chinese",
"Baltic",
"Greek",
"Korean",
"Turkish",
"Hebrew",
"Arabic",
"Thai" };
const std::string bgl_charset[] = {
"ISO-8859-1", /*Default*/
"ISO-8859-1", /*Latin*/
"ISO-8859-2", /*Eastern European*/
"WINDOWS-1251", /*Cyriilic*/
"SJIS-WIN", /*Japanese*/
"BIG5", /*Traditional Chinese*/
"GB18030", /*Simplified Chinese*/
"CP1257", /*Baltic*/
"CP1253", /*Greek*/
"EUC-KR", /*Korean*/
"ISO-8859-9", /*Turkish*/
"WINDOWS-1255", /*Hebrew*/
"CP1256", /*Arabic*/
"CP874" /*Thai*/ };
const std::string partOfSpeech[] = {
"n.",
"adj.",
"v.",
"adv.",
"interj.",
"pron.",
"prep.",
"conj.",
"suff.",
"pref.",
"art." };
typedef struct {
unsigned type;
unsigned length;
char * data;
} bgl_block;
typedef struct {
std::string headword;
std::string definition;
std::string displayedHeadword;
std::vector<std::string> alternates;
} bgl_entry;
class Babylon
{
public:
Babylon( std::string );
~Babylon();
// Subclass this to store resources
class ResourceHandler
{
public:
virtual void handleBabylonResource( std::string const & filename,
char const * data, size_t size )=0;
virtual ~ResourceHandler()
{}
};
/// Sets a prefix string to append to each resource reference in hyperlinks.
void setResourcePrefix( std::string const & prefix )
{ m_resourcePrefix = prefix; }
bool open();
void close();
bool readBlock( bgl_block& );
bool read(std::string &source_charset, std::string &target_charset);
bgl_entry readEntry( ResourceHandler * = 0 );
inline std::string title() const { return m_title; };
inline std::string author() const { return m_author; };
inline std::string email() const { return m_email; };
inline std::string description() const { return m_description; };
inline std::string copyright() const { return m_copyright; };
inline std::string sourceLang() const { return m_sourceLang; };
inline std::string targetLang() const { return m_targetLang; };
inline unsigned int numEntries() const { return m_numEntries; };
inline std::string charset() const { return m_defaultCharset; };
inline std::string filename() const { return m_filename; };
enum
{
ParserVersion = 2
};
private:
unsigned int bgl_readnum( int );
void convertToUtf8( std::string &, unsigned int = 0 );
std::string m_filename;
gzFile file;
std::string m_title;
std::string m_author;
std::string m_email;
std::string m_description;
std::string m_copyright;
std::string m_sourceLang;
std::string m_targetLang;
unsigned int m_numEntries;
std::string m_defaultCharset;
std::string m_sourceCharset;
std::string m_targetCharset;
std::string m_resourcePrefix;
enum CHARSET { DEFAULT_CHARSET, SOURCE_CHARSET, TARGET_CHARSET };
};
#endif // BABYLON_H

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "btreeidx.hh"
#include "folding.hh"
#include "utf8.hh"
#include <math.h>
//#define __BTREE_USE_LZO
// LZO mode is experimental and unsupported. Tests didn't show any substantial
// speed improvements.
#ifdef __BTREE_USE_LZO
#include <lzo/lzo1x.h>
namespace {
struct __LzoInit
{
__LzoInit()
{
lzo_init();
}
} __lzoInit;
}
#else
#include <zlib.h>
#endif
namespace BtreeIndexing {
enum
{
BtreeMinElements = 64,
BtreeMaxElements = 2048
};
BtreeDictionary::BtreeDictionary( string const & id,
vector< string > const & dictionaryFiles ):
Dictionary::Class( id, dictionaryFiles ), idxFile( 0 )
{
}
void BtreeDictionary::openIndex( File::Class & file )
{
indexNodeSize = file.read< uint32_t >();
rootOffset = file.read< uint32_t >();
idxFile = &file;
}
vector< WordArticleLink > BtreeDictionary::findArticles( wstring const & str )
{
vector< WordArticleLink > result;
wstring folded = Folding::apply( str );
bool exactMatch;
vector< char > leaf;
uint32_t nextLeaf;
char const * chainOffset = findChainOffsetExactOrPrefix( folded, exactMatch,
leaf, nextLeaf );
if ( chainOffset && exactMatch )
{
result = readChain( chainOffset );
antialias( str, result );
}
return result;
}
void BtreeDictionary::findExact( wstring const & str,
vector< wstring > & exactMatches,
vector< wstring > & prefixMatches,
unsigned long maxPrefixResults )
throw( std::exception )
{
exactMatches.clear();
prefixMatches.clear();
wstring folded = Folding::apply( str );
bool exactMatch;
vector< char > leaf;
uint32_t nextLeaf;
char const * chainOffset = findChainOffsetExactOrPrefix( folded, exactMatch,
leaf, nextLeaf );
if ( !chainOffset )
return;
for( ; ; )
{
//printf( "offset = %u, size = %u\n", chainOffset - &leaf.front(), leaf.size() );
vector< WordArticleLink > chain = readChain( chainOffset );
vector< wstring > wstrings = convertChainToWstrings( chain );
wstring resultFolded = Folding::apply( wstrings[ 0 ] );
if ( resultFolded == folded )
// Exact match
exactMatches.insert( exactMatches.end(), wstrings.begin(), wstrings.end() );
else
if ( resultFolded.size() > folded.size() && !resultFolded.compare( 0, folded.size(), folded ) )
{
// Prefix match
prefixMatches.insert( prefixMatches.end(), wstrings.begin(), wstrings.end() );
if ( prefixMatches.size() >= maxPrefixResults )
{
// For now we actually allow more than maxPrefixResults if the last
// chain yield more than one result. That's ok and maybe even more
// desirable.
break;
}
}
else
// No match at all, end this
break;
// Fetch new leaf if we're out of chains here
if ( chainOffset > &leaf.back() )
{
// We're past the current leaf, fetch the next one
//printf( "advancing\n" );
if ( nextLeaf )
{
readNode( nextLeaf, leaf );
nextLeaf = idxFile->read< uint32_t >();
chainOffset = &leaf.front() + sizeof( uint32_t );
uint32_t leafEntries = *(uint32_t *)&leaf.front();
if ( leafEntries == 0xffffFFFF )
{
//printf( "bah!\n" );
exit( 1 );
}
}
else
break; // That was the last leaf
}
}
}
void BtreeDictionary::readNode( uint32_t offset, vector< char > & out )
{
idxFile->seek( offset );
uint32_t uncompressedSize = idxFile->read< uint32_t >();
uint32_t compressedSize = idxFile->read< uint32_t >();
//printf( "%x,%x\n", uncompressedSize, compressedSize );
out.resize( uncompressedSize );
vector< unsigned char > compressedData( compressedSize );
idxFile->read( &compressedData.front(), compressedData.size() );
#ifdef __BTREE_USE_LZO
lzo_uint decompressedLength = out.size();
if ( lzo1x_decompress( &compressedData.front(), compressedData.size(),
(unsigned char *)&out.front(), &decompressedLength, 0 )
!= LZO_E_OK || decompressedLength != out.size() )
throw exFailedToDecompressNode();
#else
unsigned long decompressedLength = out.size();
if ( uncompress( (unsigned char *)&out.front(),
&decompressedLength,
&compressedData.front(),
compressedData.size() ) != Z_OK ||
decompressedLength != out.size() )
throw exFailedToDecompressNode();
#endif
}
char const * BtreeDictionary::findChainOffsetExactOrPrefix( wstring const & target,
bool & exactMatch,
vector< char > & leaf,
uint32_t & nextLeaf )
{
if ( !idxFile )
throw exIndexWasNotOpened();
// Lookup the index by traversing the index btree
vector< char > charBuffer;
vector< wchar_t > wcharBuffer;
vector< char > wordsBuffer;
exactMatch = false;
// Read a node
uint32_t currentNodeOffset = rootOffset;
for( ; ; )
{
//printf( "reading node at %x\n", currentNodeOffset );
readNode( currentNodeOffset, leaf );
// Is it a leaf or a node?
uint32_t leafEntries = *(uint32_t *)&leaf.front();
if ( leafEntries == 0xffffFFFF )
{
// A node
//printf( "=>a node\n" );
uint32_t const * offsets = (uint32_t *)&leaf.front() + 1;
char const * ptr = &leaf.front() + sizeof( uint32_t ) +
( indexNodeSize + 1 ) * sizeof( uint32_t );
unsigned entry;
for( entry = 0; entry < indexNodeSize; ++entry )
{
//printf( "checking node agaist word %s\n", ptr );
size_t wordSize = strlen( ptr );
if ( wcharBuffer.size() <= wordSize )
wcharBuffer.resize( wordSize + 1 );
long result = Utf8::decode( ptr, wordSize, &wcharBuffer.front() );
if ( result < 0 )
throw Utf8::exCantDecode( ptr );
wcharBuffer[ result ] = 0;
int compareResult = target.compare( &wcharBuffer.front() );
if ( !compareResult )
{
// The target string matches the current one.
// Go to the right, since it's there where we store such results.
currentNodeOffset = offsets[ entry + 1 ];
break;
}
if ( compareResult < 0 )
{
// The target string is smaller than the current one.
// Go to the left.
currentNodeOffset = offsets[ entry ];
break;
}
ptr += wordSize + 1;
}
if ( entry == indexNodeSize )
{
// We iterated through all entries, but our string is larger than
// all of them. Go the the rightmost node.
currentNodeOffset = offsets[ entry ];
}
}
else
{
//printf( "=>a leaf\n" );
// A leaf
nextLeaf = idxFile->read< uint32_t >();
// Iterate through chains until we find one that matches
char const * ptr = &leaf.front() + sizeof( uint32_t );
uint32_t chainSize;
while( leafEntries-- )
{
memcpy( &chainSize, ptr, sizeof( uint32_t ) );
ptr += sizeof( uint32_t );
if( chainSize )
{
size_t wordSize = strlen( ptr );
if ( wcharBuffer.size() <= wordSize )
wcharBuffer.resize( wordSize + 1 );
//printf( "checking agaist word %s, left = %u\n", ptr, leafEntries );
long result = Utf8::decode( ptr, wordSize, &wcharBuffer.front() );
if ( result < 0 )
throw Utf8::exCantDecode( ptr );
wcharBuffer[ result ] = 0;
wstring foldedWord = Folding::apply( &wcharBuffer.front() );
int compareResult = target.compare( foldedWord );
if ( !compareResult )
{
// Exact match -- return and be done
exactMatch = true;
return ptr - sizeof( uint32_t );
}
else
if ( compareResult < 0 )
{
// The target string is smaller than the current one.
// No point in travering further, return this result.
return ptr - sizeof( uint32_t );
}
ptr += chainSize;
}
}
// Well, our target is larger than all the chains here. This would mean
// that the next leaf is the right one.
if ( nextLeaf )
{
readNode( nextLeaf, leaf );
nextLeaf = idxFile->read< uint32_t >();
return &leaf.front() + sizeof( uint32_t );
}
else
return 0; // This was the last leaf
}
}
}
vector< WordArticleLink > BtreeDictionary::readChain( char const * & ptr )
{
uint32_t chainSize;
memcpy( &chainSize, ptr, sizeof( uint32_t ) );
ptr += sizeof( uint32_t );
vector< WordArticleLink > result;
vector< char > charBuffer;
while( chainSize )
{
string str = ptr;
ptr += str.size() + 1;
uint32_t articleOffset;
memcpy( &articleOffset, ptr, sizeof( uint32_t ) );
ptr += sizeof( uint32_t );
result.push_back( WordArticleLink( str, articleOffset ) );
if ( chainSize < str.size() + 1 + sizeof( uint32_t ) )
throw exCorruptedChainData();
else
chainSize -= str.size() + 1 + sizeof( uint32_t );
}
return result;
}
vector< wstring > BtreeDictionary::convertChainToWstrings(
vector< WordArticleLink > const & chain )
{
vector< wchar_t > wcharBuffer;
vector< wstring > result;
for( unsigned x = 0; x < chain.size(); ++x )
{
unsigned wordSize = chain[ x ].word.size();
if ( wcharBuffer.size() <= wordSize )
wcharBuffer.resize( wordSize + 1 );
long len = Utf8::decode( chain[ x ].word.data(), wordSize,
&wcharBuffer.front() );
if ( len < 0 )
{
fprintf( stderr, "Failed to decode utf8 of a word %s, skipping it.\n",
chain[ x ].word.c_str() );
continue;
}
wcharBuffer[ len ] = 0;
result.push_back( &wcharBuffer.front() );
}
return result;
}
void BtreeDictionary::antialias( wstring const & str,
vector< WordArticleLink > & chain )
{
wstring caseFolded = Folding::applySimpleCaseOnly( str );
for( unsigned x = chain.size(); x--; )
{
// If after applying case folding to each word they wouldn't match, we
// drop the entry.
if ( Folding::applySimpleCaseOnly( Utf8::decode( chain[ x ].word ) ) !=
caseFolded )
chain.erase( chain.begin() + x );
}
}
/// A function which recursively creates btree node.
/// The nextIndex iterator is being iterated over and increased when building
/// leaf nodes.
static uint32_t buildBtreeNode( IndexedWords::const_iterator & nextIndex,
size_t indexSize,
File::Class & file, size_t maxElements,
uint32_t & lastLeafLinkOffset )
{
// We compress all the node data. This buffer would hold it.
vector< unsigned char > uncompressedData;
bool isLeaf = indexSize <= maxElements;
if ( isLeaf )
{
// A leaf.
uint32_t totalChainsLength = 0;
IndexedWords::const_iterator nextWord = nextIndex;
for( unsigned x = indexSize; x--; ++nextWord )
{
totalChainsLength += sizeof( uint32_t );
vector< WordArticleLink > const & chain = nextWord->second;
for( unsigned y = 0; y < chain.size(); ++y )
totalChainsLength += chain[ y ].word.size() + 1 + sizeof( uint32_t );
}
uncompressedData.resize( sizeof( uint32_t ) + totalChainsLength );
// First uint32_t indicates that this is a leaf.
*(uint32_t *)&uncompressedData.front() = indexSize;
unsigned char * ptr = &uncompressedData.front() + sizeof( uint32_t );
for( unsigned x = indexSize; x--; ++nextIndex )
{
vector< WordArticleLink > const & chain = nextIndex->second;
unsigned char * saveSizeHere = ptr;
ptr += sizeof( uint32_t );
uint32_t size = 0;
for( unsigned y = 0; y < chain.size(); ++y )
{
memcpy( ptr, chain[ y ].word.c_str(), chain[ y ].word.size() + 1 );
ptr += chain[ y ].word.size() + 1;
memcpy( ptr, &(chain[ y ].articleOffset), sizeof( uint32_t ) );
ptr += sizeof( uint32_t );
size += chain[ y ].word.size() + 1 + sizeof( uint32_t );
}
memcpy( saveSizeHere, &size, sizeof( uint32_t ) );
}
}
else
{
// A node which will have children.
uncompressedData.resize( sizeof( uint32_t ) + ( maxElements + 1 ) * sizeof( uint32_t ) );
// First uint32_t indicates that this is a node.
*(uint32_t *)&uncompressedData.front() = 0xffffFFFF;
unsigned prevEntry = 0;
vector< char > charBuffer;
for( unsigned x = 0; x < maxElements; ++x )
{
unsigned curEntry = (uint64_t) indexSize * ( x + 1 ) / ( maxElements + 1 );
uint32_t offset = buildBtreeNode( nextIndex,
curEntry - prevEntry,
file, maxElements,
lastLeafLinkOffset );
memcpy( &uncompressedData.front() + sizeof( uint32_t ) + x * sizeof( uint32_t ), &offset, sizeof( uint32_t ) );
if ( charBuffer.size() < nextIndex->first.size() * 4 )
charBuffer.resize( nextIndex->first.size() * 4 );
size_t sz = Utf8::encode( nextIndex->first.data(), nextIndex->first.size(),
&charBuffer.front() );
size_t prevSize = uncompressedData.size();
uncompressedData.resize( prevSize + sz + 1 );
memcpy( &uncompressedData.front() + prevSize, &charBuffer.front(), sz );
uncompressedData.back() = 0;
prevEntry = curEntry;
}
// Rightmost child
uint32_t offset = buildBtreeNode( nextIndex,
indexSize - prevEntry,
file, maxElements,
lastLeafLinkOffset );
memcpy( &uncompressedData.front() + sizeof( uint32_t ) +
maxElements * sizeof( uint32_t ), &offset, sizeof( offset ) );
}
// Save the result.
#ifdef __BTREE_USE_LZO
vector< unsigned char > compressedData( uncompressedData.size() + uncompressedData.size() / 16 + 64 + 3 );
char workMem[ LZO1X_1_MEM_COMPRESS ];
lzo_uint compressedSize;
if ( lzo1x_1_compress( &uncompressedData.front(), uncompressedData.size(),
&compressedData.front(), &compressedSize, workMem )
!= LZO_E_OK )
{
fprintf( stderr, "Failed to compress btree node.\n" );
abort();
}
#else
vector< unsigned char > compressedData( compressBound( uncompressedData.size() ) );
unsigned long compressedSize = compressedData.size();
if ( compress( &compressedData.front(), &compressedSize,
&uncompressedData.front(), uncompressedData.size() ) != Z_OK )
{
fprintf( stderr, "Failed to compress btree node.\n" );
abort();
}
#endif
uint32_t offset = file.tell();
file.write< uint32_t >( uncompressedData.size() );
file.write< uint32_t >( compressedSize );
file.write( &compressedData.front(), compressedSize );
if ( isLeaf )
{
// A link to the next leef, which is zero and which will be updated
// should we happen to have another leaf.
file.write( ( uint32_t ) 0 );
uint32_t here = file.tell();
if ( lastLeafLinkOffset )
{
// Update the previous leaf to have the offset of this one.
file.seek( lastLeafLinkOffset );
file.write( offset );
file.seek( here );
}
// Make sure next leaf knows where to write its offset for us.
lastLeafLinkOffset = here - sizeof( uint32_t );
}
return offset;
}
uint32_t buildIndex( IndexedWords const & indexedWords, File::Class & file )
{
// We try to stick to two-level tree for most dictionaries. Try finding
// the right size for it.
size_t btreeMaxElements = ( (size_t) sqrt( indexedWords.size() ) ) + 1;
if ( btreeMaxElements < BtreeMinElements )
btreeMaxElements = BtreeMinElements;
else
if ( btreeMaxElements > BtreeMaxElements )
btreeMaxElements = BtreeMaxElements;
printf( "Building a tree of %u elements\n", btreeMaxElements );
IndexedWords::const_iterator nextIndex = indexedWords.begin();
uint32_t lastLeafOffset = 0;
uint32_t rootOffset = buildBtreeNode( nextIndex, indexedWords.size(),
file, btreeMaxElements,
lastLeafOffset );
// We need to save btreeMaxElements. For simplicity, we just save it here
// along with root offset, and then return that record's offset as the
// offset of the index itself.
uint32_t indexOffset = file.tell();
file.write( btreeMaxElements );
file.write( rootOffset );
return indexOffset;
}
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __BTREEIDX_HH_INCLUDED__
#define __BTREEIDX_HH_INCLUDED__
#include "dictionary.hh"
#include "file.hh"
#include <string>
#include <vector>
#include <map>
/// A base for the dictionary which creates a btree index to look up
/// the words.
namespace BtreeIndexing {
using std::string;
using std::wstring;
using std::vector;
using std::map;
enum
{
/// This is to be bumped up each time the internal format changes.
/// The value isn't used here by itself, it is supposed to be added
/// to each dictionary's internal format version.
FormatVersion = 1
};
// These exceptions which might be thrown during the index traversal
DEF_EX( exIndexWasNotOpened, "The index wasn't opened", Dictionary::Ex )
DEF_EX( exFailedToDecompressNode, "Failed to decompress a btree's node", Dictionary::Ex )
DEF_EX( exCorruptedChainData, "Corrupted chain data in the leaf of a btree encountered", Dictionary::Ex )
/// This structure describes a word linked to its translation. The
/// translation is represented as an abstract 32-bit offset.
struct WordArticleLink
{
string word; // in utf8
uint32_t articleOffset;
WordArticleLink()
{}
WordArticleLink( string const & word_, uint32_t articleOffset_ ):
word( word_ ), articleOffset( articleOffset_ )
{}
};
/// A base for the dictionary that utilizes a btree index build using
/// buildIndex() function declared below.
class BtreeDictionary: public Dictionary::Class
{
public:
BtreeDictionary( string const & id, vector< string > const & dictionaryFiles );
/// This function does the search using the btree index. Derivatives
/// need not to implement this function.
virtual void findExact( wstring const &,
vector< wstring > &,
vector< wstring > &,
unsigned long ) throw( std::exception );
protected:
/// Opens the index. The file must be positioned at the offset previously
/// returned by buildIndex(). The file reference is saved to be used for
/// subsequent lookups.
void openIndex( File::Class & );
/// Finds articles that match the given string. A case-insensitive search
/// is performed.
vector< WordArticleLink > findArticles( wstring const & );
private:
File::Class * idxFile;
uint32_t indexNodeSize;
uint32_t rootOffset;
/// Finds the offset in the btree leaf for the given word, either matching
/// by an exact match, or by finding the smallest entry that might match
/// by prefix. It can return zero if there isn't even a possible prefx
/// match. The input string must already be folded. The exactMatch is set
/// to true when an exact match is located, and to false otherwise.
/// The located leaf is loaded to 'leaf', and the pointer to the next
/// leaf is saved to 'nextLeaf'.
char const * findChainOffsetExactOrPrefix( wstring const & target,
bool & exactMatch,
vector< char > & leaf,
uint32_t & nextLeaf );
/// Reads a node or leaf at the given offset. Just uncompresses its data
/// to the given vector and does nothing more.
void readNode( uint32_t offset, vector< char > & out );
/// Reads the word-article links' chain at the given offset. The pointer
/// is updated to point to the next chain, if there's any.
vector< WordArticleLink > readChain( char const * & );
/// Converts words in a chain to a vector of wide strings. The article
/// offsets don't get used.
vector< wstring > convertChainToWstrings( vector< WordArticleLink > const & );
/// Drops any alises which arose due to folding. Only case-folded aliases
/// are left.
void antialias( wstring const &, vector< WordArticleLink > & );
};
// Everything below is for building the index data.
/// This represents the index in its source form, as a map which binds folded
/// words to sequences of their unfolded source forms and the corresponding
/// article offsets.
typedef map< wstring, vector< WordArticleLink > > IndexedWords;
/// Builds the index, as a compressed btree. Returns offset to its root.
/// All the data is stored to the given file, beginning from its current
/// position.
uint32_t buildIndex( IndexedWords const &, File::Class & file );
}
#endif

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "chunkedstorage.hh"
#include <zlib.h>
namespace ChunkedStorage {
enum
{
ChunkMaxSize = 65536 // Can't be more since it would overflow the address
};
Writer::Writer( File::Class & f ):
file( f ), chunkStarted( false ), bufferUsed( 0 )
{
}
uint32_t Writer::startNewBlock()
{
if ( bufferUsed >= ChunkMaxSize )
{
// Need to flush first.
saveCurrentChunk();
}
chunkStarted = true;
// The address is comprised of the offset within the chunk (in lower
// 16 bits, always fits there since ChunkMaxSize-1 does) and the
// number of the chunk, which is therefore limited to be 65535 max.
return bufferUsed | ( (uint32_t)offsets.size() << 16 );
}
void Writer::addToBlock( void const * data, size_t size )
{
if ( !size )
return;
if ( buffer.size() - bufferUsed < size )
buffer.resize( bufferUsed + size );
memcpy( &buffer.front() + bufferUsed, data, size );
bufferUsed += size;
chunkStarted = false;
}
void Writer::saveCurrentChunk()
{
size_t maxCompressedSize = compressBound( bufferUsed );
if ( bufferCompressed.size() < maxCompressedSize )
bufferCompressed.resize( maxCompressedSize );
unsigned long compressedSize = bufferCompressed.size();
if ( compress( &bufferCompressed.front(), &compressedSize,
&buffer.front(), bufferUsed ) != Z_OK )
throw exFailedToCompressChunk();
offsets.push_back( file.tell() );
file.write( (uint32_t) bufferUsed );
file.write( (uint32_t) compressedSize );
file.write( &bufferCompressed.front(), compressedSize );
bufferUsed = 0;
chunkStarted = false;
}
uint32_t Writer::finish()
{
if ( bufferUsed || chunkStarted )
saveCurrentChunk();
uint32_t offset = file.tell();
file.write( (uint32_t) offsets.size() );
file.write( &offsets.front(), offsets.size() * sizeof( uint32_t ) );
offsets.clear();
chunkStarted = false;
return offset;
}
Reader::Reader( File::Class & f, uint32_t offset ): file( f )
{
file.seek( offset );
offsets.resize( file.read< uint32_t >() );
file.read( &offsets.front(), offsets.size() * sizeof( uint32_t ) );
}
char * Reader::getBlock( uint32_t address, vector< char > & chunk )
{
size_t chunkIdx = address >> 16;
if ( chunkIdx >= offsets.size() )
throw exAddressOutOfRange();
// Read and decompress the chunk
{
file.seek( offsets[ chunkIdx ] );
uint32_t uncompressedSize = file.read< uint32_t >();
uint32_t compressedSize = file.read< uint32_t >();
chunk.resize( uncompressedSize );
vector< unsigned char > compressedData( compressedSize );
file.read( &compressedData.front(), compressedData.size() );
unsigned long decompressedLength = chunk.size();
if ( uncompress( (unsigned char *)&chunk.front(),
&decompressedLength,
&compressedData.front(),
compressedData.size() ) != Z_OK ||
decompressedLength != chunk.size() )
throw exFailedToDecompressChunk();
}
size_t offsetInChunk = address & 0xffFF;
if ( offsetInChunk > chunk.size() ) // It can be equal to for 0-sized blocks
throw exAddressOutOfRange();
return &chunk.front() + offsetInChunk;
}
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __CHUNKEDSTORAGE_HH_INCLUDED__
#define __CHUNKEDSTORAGE_HH_INCLUDED__
#include "ex.hh"
#include "file.hh"
#include <vector>
/// A chunked compression storage. We use this for articles' bodies. The idea
/// is to store data in a separately-compressed chunks, much like in dictzip,
/// but without any fancy gzip-compatibility or whatever. Another difference
/// is that any block of data saved is always contained without one chunk,
/// even if its size does exceed its maximum allowed size. This is very
/// handy since we're retrieving the data by the same blocks we used to save
/// it as, that' the only kind of seek we support, really.
namespace ChunkedStorage {
using std::vector;
DEF_EX( Ex, "Chunked storage exception", std::exception )
DEF_EX( exFailedToCompressChunk, "Failed to compress a chunk", Ex )
DEF_EX( exAddressOutOfRange, "The given chunked address is out of range", Ex )
DEF_EX( exFailedToDecompressChunk, "Failed to decompress a chunk", Ex )
/// This class writes data blocks in chunks.
class Writer
{
vector< uint32_t > offsets;
File::Class & file;
public:
Writer( File::Class & );
/// Starts new block. Returns its address.
uint32_t startNewBlock();
/// Add data to the previously started block.
void addToBlock( void const * data, size_t size );
/// Finishes writing chunks and returns the offset to the chunk table which
/// gets written at the moment of finishing.
uint32_t finish();
private:
/// Indicates that an address was allocated, which would mean the writeout
/// of the pending chunk is required even if its size is zero.
bool chunkStarted;
// This buffer accumulates the chunk data until either enough data is
// stored (>=ChunkMaxSize), or there's no more data left to store.
vector< unsigned char > buffer;
// Here we compress the chunk before writing it out to file.
vector< unsigned char > bufferCompressed;
// The amount of data stored in buffer so far. We keep it separate
// from buffer.size() for performance reasons; the latter one only
// grows, but never shrinks.
size_t bufferUsed;
void saveCurrentChunk();
};
/// This class reads data blocks previously written by Writer.
class Reader
{
vector< uint32_t > offsets;
File::Class & file;
public:
/// Creates reader by giving it a file to read from and the offset returned
/// by Writer::finish().
Reader( File::Class &, uint32_t );
/// Reads the block previously written by Writer, identified by its address.
/// Uses the user-provided storage to load the entire chunk, and then to
/// return a pointer to the requested block inside it.
char * getBlock( uint32_t address, vector< char > & );
};
}
#endif

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "config.hh"
#include <QDir>
#include <QFile>
#include <QtXml>
namespace Config {
namespace
{
QDir getHomeDir()
{
QDir result = QDir::home();
char const * pathInHome =
#ifdef Q_OS_WIN32
"Application Data/GoldenDict"
#else
".goldendict"
#endif
;
result.mkpath( pathInHome );
if ( !result.cd( pathInHome ) )
throw exCantUseHomeDir();
return result;
}
QString getConfigFileName()
{
return getHomeDir().absoluteFilePath( "config" );
}
}
Class load() throw( exError )
{
QString configName = getConfigFileName();
if ( !QFile::exists( configName ) )
{
// Make the default config, save it and return it
Class c;
#ifdef Q_OS_LINUX
if ( QDir( "/usr/share/stardict/dic" ).exists() )
c.paths.push_back( "/usr/share/stardict/dic" );
#endif
save( c );
return c;
}
QFile configFile( configName );
if ( !configFile.open( QFile::ReadOnly ) )
throw exCantReadConfigFile();
QDomDocument dd;
QString errorStr;
int errorLine, errorColumn;
if ( !dd.setContent( &configFile, false, &errorStr, &errorLine, &errorColumn ) )
{
printf( "Error: %s at %d,%d\n", errorStr.toLocal8Bit().constData(), errorLine, errorColumn );
throw exMalformedConfigFile();
}
configFile.close();
QDomNode root = dd.namedItem( "config" );
Class c;
QDomNode paths = root.namedItem( "paths" );
if ( !paths.isNull() )
{
QDomNodeList nl = paths.toElement().elementsByTagName( "path" );
for( unsigned x = 0; x < nl.length(); ++x )
c.paths.push_back( nl.item( x ).toElement().text() );
}
QDomNode groups = root.namedItem( "groups" );
if ( !groups.isNull() )
{
QDomNodeList nl = groups.toElement().elementsByTagName( "group" );
for( unsigned x = 0; x < nl.length(); ++x )
{
QDomElement grp = nl.item( x ).toElement();
Group g;
g.name = grp.attribute( "name" );
g.icon = grp.attribute( "icon" );
QDomNodeList dicts = grp.elementsByTagName( "dictionary" );
for( unsigned y = 0; y < dicts.length(); ++y )
g.dictionaries.push_back( dicts.item( y ).toElement().text() );
c.groups.push_back( g );
}
}
return c;
}
void save( Class const & c ) throw( exError )
{
QFile configFile( getConfigFileName() );
if ( !configFile.open( QFile::WriteOnly ) )
throw exCantWriteConfigFile();
QDomDocument dd;
QDomElement root = dd.createElement( "config" );
dd.appendChild( root );
{
QDomElement paths = dd.createElement( "paths" );
root.appendChild( paths );
for( Paths::const_iterator i = c.paths.begin(); i != c.paths.end(); ++i )
{
QDomElement path = dd.createElement( "path" );
paths.appendChild( path );
QDomText value = dd.createTextNode( *i );
path.appendChild( value );
}
}
{
QDomElement groups = dd.createElement( "groups" );
root.appendChild( groups );
for( Groups::const_iterator i = c.groups.begin(); i != c.groups.end(); ++i )
{
QDomElement group = dd.createElement( "group" );
groups.appendChild( group );
QDomAttr name = dd.createAttribute( "name" );
name.setValue( i->name );
group.setAttributeNode( name );
if ( i->icon.size() )
{
QDomAttr icon = dd.createAttribute( "icon" );
icon.setValue( i->icon );
group.setAttributeNode( icon );
}
for( vector< QString >::const_iterator j = i->dictionaries.begin(); j != i->dictionaries.end(); ++j )
{
QDomElement dictionary = dd.createElement( "dictionary" );
group.appendChild( dictionary );
QDomText value = dd.createTextNode( *j );
dictionary.appendChild( value );
}
}
}
configFile.write( dd.toByteArray() );
}
QString getIndexDir() throw( exError )
{
QDir result = getHomeDir();
result.mkpath( "index" );
if ( !result.cd( "index" ) )
throw exCantUseIndexDir();
return result.path() + QDir::separator();
}
QString getUserCssFileName() throw( exError )
{
return getHomeDir().filePath( "style.css" );
}
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __CONFIG_HH_INCLUDED__
#define __CONFIG_HH_INCLUDED__
#include <vector>
#include <QString>
#include "ex.hh"
/// GoldenDict's configuration
namespace Config {
using std::vector;
/// A list of paths where to search for the dictionaries
typedef vector< QString > Paths;
/// A dictionary group
struct Group
{
QString name, icon;
vector< QString > dictionaries; // consists of dictionary's ids
};
/// All the groups
typedef vector< Group > Groups;
struct Class
{
Paths paths;
Groups groups;
};
DEF_EX( exError, "Error with the program's configuration", std::exception )
DEF_EX( exCantUseHomeDir, "Can't use home directory to store GoldenDict preferences", exError )
DEF_EX( exCantUseIndexDir, "Can't use index directory to store GoldenDict index files", exError )
DEF_EX( exCantReadConfigFile, "Can't read the configuration file", exError )
DEF_EX( exCantWriteConfigFile, "Can't write the configuration file", exError )
DEF_EX( exMalformedConfigFile, "The configuration file is malformed", exError )
/// Loads the configuration, or creates the default one if none is present
Class load() throw( exError );
/// Saves the configuration
void save( Class const & ) throw( exError );
/// Returns the index directory, where the indices are to be stored.
QString getIndexDir() throw( exError );
/// Returns the user .css file name.
QString getUserCssFileName() throw( exError );
}
#endif

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<ui version="4.0" >
<class>DictGroupWidget</class>
<widget class="QWidget" name="DictGroupWidget" >
<property name="geometry" >
<rect>
<x>0</x>
<y>0</y>
<width>403</width>
<height>333</height>
</rect>
</property>
<property name="windowTitle" >
<string>Form</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout" >
<item>
<widget class="DictListWidget" name="dictionaries" />
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout" >
<item>
<widget class="QLabel" name="label" >
<property name="text" >
<string>Group icon:</string>
</property>
</widget>
</item>
<item>
<widget class="QComboBox" name="groupIcon" >
<property name="sizeAdjustPolicy" >
<enum>QComboBox::AdjustToContents</enum>
</property>
</widget>
</item>
<item>
<spacer name="horizontalSpacer" >
<property name="orientation" >
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0" >
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
</layout>
</item>
</layout>
</widget>
<customwidgets>
<customwidget>
<class>DictListWidget</class>
<extends>QListWidget</extends>
<header>groups_widgets.hh</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include <vector>
#include <algorithm>
#include <cstdio>
#include "dictionary.hh"
#include "md5.h"
// For needToRebuildIndex(), read below
#include <QFileInfo>
#include <QDateTime>
namespace Dictionary {
Class::Class( string const & id_, vector< string > const & dictionaryFiles_ ):
id( id_ ), dictionaryFiles( dictionaryFiles_ )
{
}
string Format::makeDictionaryId( vector< string > const & dictionaryFiles ) throw()
{
std::vector< string > sortedList( dictionaryFiles );
std::sort( sortedList.begin(), sortedList.end() );
md5_state_t context;
md5_init( &context );
for( std::vector< string >::const_iterator i = sortedList.begin();
i != sortedList.end(); ++i )
md5_append( &context, (unsigned char const *)i->c_str(), i->size() + 1 );
unsigned char digest[ 16 ];
md5_finish( &context, digest );
char result[ sizeof( digest ) * 2 + 1 ];
for( unsigned x = 0; x < sizeof( digest ); ++x )
sprintf( result + x * 2, "%02x", digest[ x ] );
return result;
}
// While this file is not supposed to have any Qt stuff since it's used by
// the dictionary backends, there's no platform-independent way to get hold
// of a timestamp of the file, so we use here Qt anyway. It is supposed to
// be fixed in the future when it's needed.
bool Format::needToRebuildIndex( vector< string > const & dictionaryFiles,
string const & indexFile ) throw()
{
unsigned long lastModified = 0;
for( std::vector< string >::const_iterator i = dictionaryFiles.begin();
i != dictionaryFiles.end(); ++i )
{
QFileInfo fileInfo( QString::fromStdString( *i ) );
if ( !fileInfo.exists() )
return true;
unsigned long ts = fileInfo.lastModified().toTime_t();
if ( ts > lastModified )
lastModified = ts;
}
QFileInfo fileInfo( QString::fromStdString( indexFile ) );
if ( !fileInfo.exists() )
return true;
return fileInfo.lastModified().toTime_t() < lastModified;
}
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __DICTIONARY_HH_INCLUDED__
#define __DICTIONARY_HH_INCLUDED__
#include <vector>
#include <string>
#include <map>
#include "sptr.hh"
#include "ex.hh"
/// Abstract dictionary-related stuff
namespace Dictionary {
using std::vector;
using std::string;
using std::wstring;
using std::map;
enum Property
{
Author,
Copyright,
Description,
Email
};
DEF_EX( Ex, "Dictionary error", std::exception )
DEF_EX( exNoSuchWord, "The given word does not exist", Ex )
DEF_EX( exNoSuchResource, "The given resource does not exist", Ex )
/// A dictionary. Can be used to query words.
class Class
{
string id;
vector< string > dictionaryFiles;
public:
/// Creates a dictionary. The id should be made using
/// Format::makeDictionaryId(), the dictionaryFiles is the file names the
/// dictionary consists of.
Class( string const & id, vector< string > const & dictionaryFiles );
/// Returns the dictionary's id.
string getId() throw()
{ return id; }
/// Returns the list of file names the dictionary consists of.
vector< string > const & getDictionaryFilenames() throw()
{ return dictionaryFiles; }
/// Returns the dictionary's full name, utf8.
virtual string getName() throw()=0;
/// Returns all the available properties, like the author's name, copyright,
/// description etc. All strings are in utf8.
virtual map< Property, string > getProperties() throw()=0;
/// Returns the number of articles in the dictionary.
virtual unsigned long getArticleCount() throw()=0;
/// Returns the number of words in the dictionary. This can be equal to
/// the number of articles, or can be larger if some synonyms are present.
virtual unsigned long getWordCount() throw()=0;
/// Looks up a given word in the dictionary, aiming for exact matches. The
/// result is a list of such matches. If it is possible to also look up words
/// that begin with the given substring without much expense, they should be
/// put into the prefix results (if not, it should be left empty). Not more
/// than maxPrefixResults prefix results should be stored. The whole
/// operation is supposed to be fast and is executed in a GUI thread.
virtual void findExact( wstring const &,
vector< wstring > & exactMatches,
vector< wstring > & prefixMatches,
unsigned long maxPrefixResults ) throw( std::exception )=0;
/// Finds known headwords for the given word, that is, the words for which
/// the given word is a synonym. If a dictionary can't perform this operation,
/// it should leave the default implementation which always returns an empty
/// vector.
virtual vector< wstring > findHeadwordsForSynonym( wstring const & )
throw( std::exception )
{ return vector< wstring >(); }
/// Returns a definition for the given word. The definition should
/// be an html fragment (without html/head/body tags) in an utf8 encoding.
/// The 'alts' vector could contain a list of words the definitions of which
/// should be included in the output as well, being treated as additional
/// synonyms for the main word.
virtual string getArticle( wstring const &, vector< wstring > const & alts )
throw( exNoSuchWord, std::exception )=0;
/// Loads contents of a resource named 'name' into the 'data' vector. This is
/// usually a picture file referenced in the article or something like that.
virtual void getResource( string const & name,
vector< char > & data ) throw( exNoSuchResource,
std::exception )
{ throw exNoSuchResource(); }
virtual ~Class()
{}
};
/// Callbacks to be used when the dictionaries are being initialized.
class Initializing
{
public:
/// Called by the Format instance to notify the caller that the given
/// dictionary is being indexed. Since indexing can take some time, this
/// is useful to show in some kind of a splash screen.
/// The dictionaryName is in utf8.
virtual void indexingDictionary( string const & dictionaryName ) throw()=0;
virtual ~Initializing()
{}
};
/// A dictionary format. This is a factory to create dictionaries' instances.
/// It is fed filenames to check if they are dictionaries, and it creates
/// instances when they are.
class Format
{
public:
/// Should go through the given list of file names, trying each one as a
/// possible dictionary of the supported format. Upon finding one, creates a
/// corresponding dictionary instance. As a result, a list of dictionaries
/// is created.
/// indicesDir indicates a directory where index files can be created, should
/// there be need for them. The index file name must be the same as the
/// dictionary's id, made by makeDictionaryId() from the list of file names.
/// Any exception thrown would terminate the program with an error.
virtual vector< sptr< Class > > makeDictionaries( vector< string > const & fileNames,
string const & indicesDir,
Initializing & )
throw( std::exception )=0;
virtual ~Format()
{}
public://protected:
/// Generates an id based on the set of file names which the dictionary
/// consists of. The resulting id is an alphanumeric hex value made by
/// hashing the file names. This id should be used to identify dictionary
/// and for the index file name, if one is needed.
static string makeDictionaryId( vector< string > const & dictionaryFiles ) throw();
/// Checks if it is needed to regenerate index file based on its timestamp
/// and the timestamps of the dictionary files. If some files are newer than
/// the index file, or the index file doesn't exist, returns true. If some
/// dictionary files don't exist, returns true, too.
static bool needToRebuildIndex( vector< string > const & dictionaryFiles,
string const & indexFile ) throw();
};
}
#endif

679
src/dictzip.c Normal file
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@ -0,0 +1,679 @@
/* Made up from data.c and other supplementary files of dictd-1.0.11 for the
* GoldenDict program.
*/
/* data.c --
* Created: Tue Jul 16 12:45:41 1996 by faith@dict.org
* Revised: Sat Mar 30 10:46:06 2002 by faith@dict.org
* Copyright 1996, 1997, 1998, 2000, 2002 Rickard E. Faith (faith@dict.org)
*
* 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 1, 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "dictzip.h"
#include <limits.h>
#include <stdarg.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#define BUFFERSIZE 10240
#define OUT_BUFFER_SIZE 0xffffL
#define IN_BUFFER_SIZE ((unsigned long)((double)(OUT_BUFFER_SIZE - 12) * 0.89))
/* For gzip-compatible header, as defined in RFC 1952 */
/* Magic for GZIP (rfc1952) */
#define GZ_MAGIC1 0x1f /* First magic byte */
#define GZ_MAGIC2 0x8b /* Second magic byte */
/* FLaGs (bitmapped), from rfc1952 */
#define GZ_FTEXT 0x01 /* Set for ASCII text */
#define GZ_FHCRC 0x02 /* Header CRC16 */
#define GZ_FEXTRA 0x04 /* Optional field (random access index) */
#define GZ_FNAME 0x08 /* Original name */
#define GZ_COMMENT 0x10 /* Zero-terminated, human-readable comment */
#define GZ_MAX 2 /* Maximum compression */
#define GZ_FAST 4 /* Fasted compression */
/* These are from rfc1952 */
#define GZ_OS_FAT 0 /* FAT filesystem (MS-DOS, OS/2, NT/Win32) */
#define GZ_OS_AMIGA 1 /* Amiga */
#define GZ_OS_VMS 2 /* VMS (or OpenVMS) */
#define GZ_OS_UNIX 3 /* Unix */
#define GZ_OS_VMCMS 4 /* VM/CMS */
#define GZ_OS_ATARI 5 /* Atari TOS */
#define GZ_OS_HPFS 6 /* HPFS filesystem (OS/2, NT) */
#define GZ_OS_MAC 7 /* Macintosh */
#define GZ_OS_Z 8 /* Z-System */
#define GZ_OS_CPM 9 /* CP/M */
#define GZ_OS_TOPS20 10 /* TOPS-20 */
#define GZ_OS_NTFS 11 /* NTFS filesystem (NT) */
#define GZ_OS_QDOS 12 /* QDOS */
#define GZ_OS_ACORN 13 /* Acorn RISCOS */
#define GZ_OS_UNKNOWN 255 /* unknown */
#define GZ_RND_S1 'R' /* First magic for random access format */
#define GZ_RND_S2 'A' /* Second magic for random access format */
#define GZ_ID1 0 /* GZ_MAGIC1 */
#define GZ_ID2 1 /* GZ_MAGIC2 */
#define GZ_CM 2 /* Compression Method (Z_DEFALTED) */
#define GZ_FLG 3 /* FLaGs (see above) */
#define GZ_MTIME 4 /* Modification TIME */
#define GZ_XFL 8 /* eXtra FLags (GZ_MAX or GZ_FAST) */
#define GZ_OS 9 /* Operating System */
#define GZ_XLEN 10 /* eXtra LENgth (16bit) */
#define GZ_FEXTRA_START 12 /* Start of extra fields */
#define GZ_SI1 12 /* Subfield ID1 */
#define GZ_SI2 13 /* Subfield ID2 */
#define GZ_SUBLEN 14 /* Subfield length (16bit) */
#define GZ_VERSION 16 /* Version for subfield format */
#define GZ_CHUNKLEN 18 /* Chunk length (16bit) */
#define GZ_CHUNKCNT 20 /* Number of chunks (16bit) */
#define GZ_RNDDATA 22 /* Random access data (16bit) */
#define DBG_VERBOSE (0<<30|1<< 0) /* Verbose */
#define DBG_ZIP (0<<30|1<< 1) /* Zip */
#define DBG_UNZIP (0<<30|1<< 2) /* Unzip */
#define DBG_SEARCH (0<<30|1<< 3) /* Search */
#define DBG_SCAN (0<<30|1<< 4) /* Config file scan */
#define DBG_PARSE (0<<30|1<< 5) /* Config file parse */
#define DBG_INIT (0<<30|1<< 6) /* Database initialization */
#define DBG_PORT (0<<30|1<< 7) /* Log port number for connections */
#define DBG_LEV (0<<30|1<< 8) /* Levenshtein matching */
#define DBG_AUTH (0<<30|1<< 9) /* Debug authentication */
#define DBG_NODETACH (0<<30|1<<10) /* Don't detach as a background proc. */
#define DBG_NOFORK (0<<30|1<<11) /* Don't fork (single threaded) */
#define DBG_ALT (0<<30|1<<12) /* altcompare() */
#define LOG_SERVER (0<<30|1<< 0) /* Log server diagnostics */
#define LOG_CONNECT (0<<30|1<< 1) /* Log connection information */
#define LOG_STATS (0<<30|1<< 2) /* Log termination information */
#define LOG_COMMAND (0<<30|1<< 3) /* Log commands */
#define LOG_FOUND (0<<30|1<< 4) /* Log words found */
#define LOG_NOTFOUND (0<<30|1<< 5) /* Log words not found */
#define LOG_CLIENT (0<<30|1<< 6) /* Log client */
#define LOG_HOST (0<<30|1<< 7) /* Log remote host name */
#define LOG_TIMESTAMP (0<<30|1<< 8) /* Log with timestamps */
#define LOG_MIN (0<<30|1<< 9) /* Log a few minimal things */
#define LOG_AUTH (0<<30|1<<10) /* Log authentication denials */
#define DICT_LOG_TERM 0
#define DICT_LOG_DEFINE 1
#define DICT_LOG_MATCH 2
#define DICT_LOG_NOMATCH 3
#define DICT_LOG_CLIENT 4
#define DICT_LOG_TRACE 5
#define DICT_LOG_COMMAND 6
#define DICT_LOG_AUTH 7
#define DICT_LOG_CONNECT 8
#define DICT_UNKNOWN 0
#define DICT_TEXT 1
#define DICT_GZIP 2
#define DICT_DZIP 3
/* For now, just always enable the mmap mode */
#define HAVE_MMAP
#include <sys/stat.h>
#ifdef HAVE_MMAP
#include <sys/mman.h>
#endif
#include <ctype.h>
#include <fcntl.h>
#include <assert.h>
#ifdef HAVE_MMAP
#include <sys/mman.h>
#endif
#include <sys/stat.h>
#define USE_CACHE 1
#ifdef HAVE_MMAP
int mmap_mode = 1; /* dictd uses mmap() function (the default) */
#else
int mmap_mode = 0;
#endif
#define dict_data_filter( ... )
#define PRINTF( ... )
#define xmalloc malloc
#define xfree free
static const char * _err_programName = "GoldenDict";
#define log_error( ... )
#define log_error_va( ... )
static void err_fatal( const char *routine, const char *format, ... )
{
va_list ap;
fflush( stdout );
if (_err_programName) {
if (routine)
fprintf( stderr, "%s (%s): ", _err_programName, routine );
else
fprintf( stderr, "%s: ", _err_programName );
} else {
if (routine) fprintf( stderr, "%s: ", routine );
}
va_start( ap, format );
vfprintf( stderr, format, ap );
log_error_va( routine, format, ap );
va_end( ap );
fflush( stderr );
fflush( stdout );
exit ( 1 );
}
/* \doc |err_fatal_errno| flushes "stdout", prints a fatal error report on
"stderr", prints the system error corresponding to |errno|, flushes
"stderr" and "stdout", and calls |exit|. |routine| is the name of the
routine in which the error took place. */
static void err_fatal_errno( const char *routine, const char *format, ... )
{
va_list ap;
int errorno = errno;
fflush( stdout );
if (_err_programName) {
if (routine)
fprintf( stderr, "%s (%s): ", _err_programName, routine );
else
fprintf( stderr, "%s: ", _err_programName );
} else {
if (routine) fprintf( stderr, "%s: ", routine );
}
va_start( ap, format );
vfprintf( stderr, format, ap );
log_error_va( routine, format, ap );
va_end( ap );
#if HAVE_STRERROR
fprintf( stderr, "%s: %s\n", routine, strerror( errorno ) );
log_error( routine, "%s: %s\n", routine, strerror( errorno ) );
#else
errno = errorno;
perror( routine );
log_error( routine, "%s: errno = %d\n", routine, errorno );
#endif
fflush( stderr );
fflush( stdout );
exit( 1 );
}
/* \doc |err_internal| flushes "stdout", prints the fatal error message,
flushes "stderr" and "stdout", and calls |abort| so that a core dump is
generated. */
static void err_internal( const char *routine, const char *format, ... )
{
va_list ap;
fflush( stdout );
if (_err_programName) {
if (routine)
fprintf( stderr, "%s (%s): Internal error\n ",
_err_programName, routine );
else
fprintf( stderr, "%s: Internal error\n ", _err_programName );
} else {
if (routine) fprintf( stderr, "%s: Internal error\n ", routine );
else fprintf( stderr, "Internal error\n " );
}
va_start( ap, format );
vfprintf( stderr, format, ap );
log_error( routine, format, ap );
va_end( ap );
if (_err_programName)
fprintf( stderr, "Aborting %s...\n", _err_programName );
else
fprintf( stderr, "Aborting...\n" );
fflush( stderr );
fflush( stdout );
abort();
}
static int dict_read_header( const char *filename,
dictData *header, int computeCRC )
{
FILE *str;
int id1, id2, si1, si2;
char buffer[BUFFERSIZE];
int extraLength, subLength;
int i;
char *pt;
int c;
struct stat sb;
unsigned long crc = crc32( 0L, Z_NULL, 0 );
int count;
unsigned long offset;
if (!(str = fopen( filename, "r" )))
err_fatal_errno( __func__,
"Cannot open data file \"%s\" for read\n", filename );
header->filename = NULL;//str_find( filename );
header->headerLength = GZ_XLEN - 1;
header->type = DICT_UNKNOWN;
id1 = getc( str );
id2 = getc( str );
if (id1 != GZ_MAGIC1 || id2 != GZ_MAGIC2) {
header->type = DICT_TEXT;
fstat( fileno( str ), &sb );
header->compressedLength = header->length = sb.st_size;
header->origFilename = NULL;//str_find( filename );
header->mtime = sb.st_mtime;
if (computeCRC) {
rewind( str );
while (!feof( str )) {
if ((count = fread( buffer, 1, BUFFERSIZE, str ))) {
crc = crc32( crc, buffer, count );
}
}
}
header->crc = crc;
fclose( str );
return 0;
}
header->type = DICT_GZIP;
header->method = getc( str );
header->flags = getc( str );
header->mtime = getc( str ) << 0;
header->mtime |= getc( str ) << 8;
header->mtime |= getc( str ) << 16;
header->mtime |= getc( str ) << 24;
header->extraFlags = getc( str );
header->os = getc( str );
if (header->flags & GZ_FEXTRA) {
extraLength = getc( str ) << 0;
extraLength |= getc( str ) << 8;
header->headerLength += extraLength + 2;
si1 = getc( str );
si2 = getc( str );
if (si1 == GZ_RND_S1 && si2 == GZ_RND_S2) {
subLength = getc( str ) << 0;
subLength |= getc( str ) << 8;
header->version = getc( str ) << 0;
header->version |= getc( str ) << 8;
if (header->version != 1)
err_internal( __func__,
"dzip header version %d not supported\n",
header->version );
header->chunkLength = getc( str ) << 0;
header->chunkLength |= getc( str ) << 8;
header->chunkCount = getc( str ) << 0;
header->chunkCount |= getc( str ) << 8;
if (header->chunkCount <= 0) {
fclose( str );
return 5;
}
header->chunks = xmalloc( sizeof( header->chunks[0] )
* header->chunkCount );
for (i = 0; i < header->chunkCount; i++) {
header->chunks[i] = getc( str ) << 0;
header->chunks[i] |= getc( str ) << 8;
}
header->type = DICT_DZIP;
} else {
fseek( str, header->headerLength, SEEK_SET );
}
}
if (header->flags & GZ_FNAME) { /* FIXME! Add checking against header len */
pt = buffer;
while ((c = getc( str )) && c != EOF){
*pt++ = c;
if (pt == buffer + sizeof (buffer)){
err_fatal (
__func__,
"too long FNAME field in dzip file \"%s\"\n", filename);
}
}
*pt = '\0';
header->origFilename = NULL;//str_find( buffer );
header->headerLength += strlen( buffer ) + 1;
} else {
header->origFilename = NULL;
}
if (header->flags & GZ_COMMENT) { /* FIXME! Add checking for header len */
pt = buffer;
while ((c = getc( str )) && c != EOF){
*pt++ = c;
if (pt == buffer + sizeof (buffer)){
err_fatal (
__func__,
"too long COMMENT field in dzip file \"%s\"\n", filename);
}
}
*pt = '\0';
header->comment = NULL;//str_find( buffer );
header->headerLength += strlen( header->comment ) + 1;
} else {
header->comment = NULL;
}
if (header->flags & GZ_FHCRC) {
getc( str );
getc( str );
header->headerLength += 2;
}
if (ftell( str ) != header->headerLength + 1)
err_internal( __func__,
"File position (%lu) != header length + 1 (%d)\n",
ftell( str ), header->headerLength + 1 );
fseek( str, -8, SEEK_END );
header->crc = getc( str ) << 0;
header->crc |= getc( str ) << 8;
header->crc |= getc( str ) << 16;
header->crc |= getc( str ) << 24;
header->length = getc( str ) << 0;
header->length |= getc( str ) << 8;
header->length |= getc( str ) << 16;
header->length |= getc( str ) << 24;
header->compressedLength = ftell( str );
/* Compute offsets */
header->offsets = xmalloc( sizeof( header->offsets[0] )
* header->chunkCount );
for (offset = header->headerLength + 1, i = 0;
i < header->chunkCount;
i++)
{
header->offsets[i] = offset;
offset += header->chunks[i];
}
fclose( str );
return 0;
}
dictData *dict_data_open( const char *filename, int computeCRC )
{
dictData *h = NULL;
struct stat sb;
int j;
if (!filename)
return NULL;
h = xmalloc( sizeof( struct dictData ) );
memset( h, 0, sizeof( struct dictData ) );
h->initialized = 0;
if (dict_read_header( filename, h, computeCRC )) {
err_fatal( __func__,
"\"%s\" not in text or dzip format\n", filename );
}
if ((h->fd = open( filename, O_RDONLY )) < 0)
err_fatal_errno( __func__,
"Cannot open data file \"%s\"\n", filename );
if (fstat( h->fd, &sb ))
err_fatal_errno( __func__,
"Cannot stat data file \"%s\"\n", filename );
h->size = sb.st_size;
if (mmap_mode){
#ifdef HAVE_MMAP
h->start = mmap( NULL, h->size, PROT_READ, MAP_SHARED, h->fd, 0 );
if ((void *)h->start == (void *)(-1))
err_fatal_errno(
__func__,
"Cannot mmap data file \"%s\"\n", filename );
#else
err_fatal (__func__, "This should not happen");
#endif
}else{
h->start = xmalloc (h->size);
if (-1 == read (h->fd, (char *) h->start, h->size))
err_fatal_errno (
__func__,
"Cannot read data file \"%s\"\n", filename );
close (h -> fd);
h -> fd = 0;
}
h->end = h->start + h->size;
for (j = 0; j < DICT_CACHE_SIZE; j++) {
h->cache[j].chunk = -1;
h->cache[j].stamp = -1;
h->cache[j].inBuffer = NULL;
h->cache[j].count = 0;
}
return h;
}
void dict_data_close( dictData *header )
{
int i;
if (!header)
return;
if (header->fd >= 0) {
if (mmap_mode){
#ifdef HAVE_MMAP
munmap( (void *)header->start, header->size );
close( header->fd );
header->fd = 0;
header->start = header->end = NULL;
#else
err_fatal (__func__, "This should not happen");
#endif
}else{
if (header -> start)
xfree ((char *) header -> start);
}
}
if (header->chunks) xfree( header->chunks );
if (header->offsets) xfree( header->offsets );
if (header->initialized) {
if (inflateEnd( &header->zStream ))
err_internal( __func__,
"Cannot shut down inflation engine: %s\n",
header->zStream.msg );
}
for (i = 0; i < DICT_CACHE_SIZE; ++i){
if (header -> cache [i].inBuffer)
xfree (header -> cache [i].inBuffer);
}
memset( header, 0, sizeof( struct dictData ) );
xfree( header );
}
char *dict_data_read_ (
dictData *h, unsigned long start, unsigned long size,
const char *preFilter, const char *postFilter )
{
char *buffer, *pt;
unsigned long end;
int count;
char *inBuffer;
char outBuffer[OUT_BUFFER_SIZE];
int firstChunk, lastChunk;
int firstOffset, lastOffset;
int i, j;
int found, target, lastStamp;
static int stamp = 0;
end = start + size;
buffer = xmalloc( size + 1 );
PRINTF(DBG_UNZIP,
("dict_data_read( %p, %lu, %lu, %s, %s )\n",
h, start, size, preFilter, postFilter ));
assert( h != NULL);
switch (h->type) {
case DICT_GZIP:
err_fatal( __func__,
"Cannot seek on pure gzip format files.\n"
"Use plain text (for performance)"
" or dzip format (for space savings).\n" );
break;
case DICT_TEXT:
memcpy( buffer, h->start + start, size );
buffer[size] = '\0';
break;
case DICT_DZIP:
if (!h->initialized) {
++h->initialized;
h->zStream.zalloc = NULL;
h->zStream.zfree = NULL;
h->zStream.opaque = NULL;
h->zStream.next_in = 0;
h->zStream.avail_in = 0;
h->zStream.next_out = NULL;
h->zStream.avail_out = 0;
if (inflateInit2( &h->zStream, -15 ) != Z_OK)
err_internal( __func__,
"Cannot initialize inflation engine: %s\n",
h->zStream.msg );
}
firstChunk = start / h->chunkLength;
firstOffset = start - firstChunk * h->chunkLength;
lastChunk = end / h->chunkLength;
lastOffset = end - lastChunk * h->chunkLength;
PRINTF(DBG_UNZIP,
(" start = %lu, end = %lu\n"
"firstChunk = %d, firstOffset = %d,"
" lastChunk = %d, lastOffset = %d\n",
start, end, firstChunk, firstOffset, lastChunk, lastOffset ));
for (pt = buffer, i = firstChunk; i <= lastChunk; i++) {
/* Access cache */
found = 0;
target = 0;
lastStamp = INT_MAX;
for (j = 0; j < DICT_CACHE_SIZE; j++) {
#if USE_CACHE
if (h->cache[j].chunk == i) {
found = 1;
target = j;
break;
}
#endif
if (h->cache[j].stamp < lastStamp) {
lastStamp = h->cache[j].stamp;
target = j;
}
}
h->cache[target].stamp = ++stamp;
if (found) {
count = h->cache[target].count;
inBuffer = h->cache[target].inBuffer;
} else {
h->cache[target].chunk = i;
if (!h->cache[target].inBuffer)
h->cache[target].inBuffer = xmalloc( IN_BUFFER_SIZE );
inBuffer = h->cache[target].inBuffer;
if (h->chunks[i] >= OUT_BUFFER_SIZE ) {
err_internal( __func__,
"h->chunks[%d] = %d >= %ld (OUT_BUFFER_SIZE)\n",
i, h->chunks[i], OUT_BUFFER_SIZE );
}
memcpy( outBuffer, h->start + h->offsets[i], h->chunks[i] );
dict_data_filter( outBuffer, &count, OUT_BUFFER_SIZE, preFilter );
h->zStream.next_in = outBuffer;
h->zStream.avail_in = h->chunks[i];
h->zStream.next_out = inBuffer;
h->zStream.avail_out = IN_BUFFER_SIZE;
if (inflate( &h->zStream, Z_PARTIAL_FLUSH ) != Z_OK)
err_fatal( __func__, "inflate: %s\n", h->zStream.msg );
if (h->zStream.avail_in)
err_internal( __func__,
"inflate did not flush (%d pending, %d avail)\n",
h->zStream.avail_in, h->zStream.avail_out );
count = IN_BUFFER_SIZE - h->zStream.avail_out;
dict_data_filter( inBuffer, &count, IN_BUFFER_SIZE, postFilter );
h->cache[target].count = count;
}
if (i == firstChunk) {
if (i == lastChunk) {
memcpy( pt, inBuffer + firstOffset, lastOffset-firstOffset);
pt += lastOffset - firstOffset;
} else {
if (count != h->chunkLength )
err_internal( __func__,
"Length = %d instead of %d\n",
count, h->chunkLength );
memcpy( pt, inBuffer + firstOffset,
h->chunkLength - firstOffset );
pt += h->chunkLength - firstOffset;
}
} else if (i == lastChunk) {
memcpy( pt, inBuffer, lastOffset );
pt += lastOffset;
} else {
assert( count == h->chunkLength );
memcpy( pt, inBuffer, h->chunkLength );
pt += h->chunkLength;
}
}
*pt = '\0';
break;
case DICT_UNKNOWN:
err_fatal( __func__, "Cannot read unknown file type\n" );
break;
}
return buffer;
}

97
src/dictzip.h Normal file
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/* Made up from data.h and other supplementary files of dictd-1.0.11 for the
* GoldenDict program.
*/
/* data.h --
* Created: Sat Mar 15 18:04:25 2003 by Aleksey Cheusov <vle@gmx.net>
* Copyright 1994-2003 Rickard E. Faith (faith@dict.org)
*
* 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 1, 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _DICTZIP_H_
#define _DICTZIP_H_
#include <stdio.h>
#include <zlib.h>
#ifdef __cplusplus
extern "C"
{
#endif
/* Excerpts from defs.h */
#define DICT_CACHE_SIZE 5
typedef struct dictCache {
int chunk;
char *inBuffer;
int stamp;
int count;
} dictCache;
typedef struct dictData {
int fd; /* file descriptor */
const char *start; /* start of mmap'd area */
const char *end; /* end of mmap'd area */
unsigned long size; /* size of mmap */
int type;
const char *filename;
z_stream zStream;
int initialized;
int headerLength;
int method;
int flags;
time_t mtime;
int extraFlags;
int os;
int version;
int chunkLength;
int chunkCount;
int *chunks;
unsigned long *offsets; /* Sum-scan of chunks. */
const char *origFilename;
const char *comment;
unsigned long crc;
unsigned long length;
unsigned long compressedLength;
dictCache cache[DICT_CACHE_SIZE];
} dictData;
/* initialize .data file */
extern dictData *dict_data_open (
const char *filename, int computeCRC);
/* */
extern void dict_data_close (
dictData *data);
extern char *dict_data_read_ (
dictData *data,
unsigned long start, unsigned long end,
const char *preFilter,
const char *postFilter );
extern int mmap_mode;
#ifdef __cplusplus
} /* end extern "C" */
#endif
#endif /* _DICTZIP_H_ */

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "dsl.hh"
#include "dsl_details.hh"
#include "btreeidx.hh"
#include "folding.hh"
#include "utf8.hh"
#include "chunkedstorage.hh"
#include "dictzip.h"
#include "htmlescape.hh"
#include "iconv.hh"
#include "filetype.hh"
#include "fsencoding.hh"
#include <zlib.h>
#include <map>
#include <set>
#include <string>
#include <vector>
#include <list>
#include <wctype.h>
// For TIFF conversion
#include <QImage>
#include <QByteArray>
#include <QBuffer>
namespace Dsl {
using namespace Details;
using std::map;
using std::multimap;
using std::pair;
using std::set;
using std::string;
using std::wstring;
using std::vector;
using std::list;
using BtreeIndexing::WordArticleLink;
using BtreeIndexing::IndexedWords;
namespace {
DEF_EX_STR( exCantReadFile, "Can't read file", Dictionary::Ex )
enum
{
Signature = 0x584c5344, // DSLX on little-endian, XLSD on big-endian
CurrentFormatVersion = 6 + BtreeIndexing::FormatVersion + Folding::Version
};
struct IdxHeader
{
uint32_t signature; // First comes the signature, DSLX
uint32_t formatVersion; // File format version (CurrentFormatVersion)
int dslEncoding; // Which encoding is used for the file indexed
uint32_t chunksOffset; // The offset to chunks' storage
uint32_t hasAbrv; // Non-zero means file has abrvs at abrvAddress
uint32_t abrvAddress; // Address of abrv map in the chunked storage
uint32_t indexOffset; // The offset of the index in the file
} __attribute__((packed));
bool indexIsOldOrBad( string const & indexFile )
{
File::Class idx( indexFile, "rb" );
IdxHeader header;
return idx.readRecords( &header, sizeof( header ), 1 ) != 1 ||
header.signature != Signature ||
header.formatVersion != CurrentFormatVersion;
}
class DslDictionary: public BtreeIndexing::BtreeDictionary
{
File::Class idx;
IdxHeader idxHeader;
ChunkedStorage::Reader chunks;
string dictionaryName;
map< string, string > abrv;
dictData * dz;
public:
DslDictionary( string const & id, string const & indexFile,
vector< string > const & dictionaryFiles );
~DslDictionary();
virtual string getName() throw()
{ return dictionaryName; }
virtual map< Dictionary::Property, string > getProperties() throw()
{ return map< Dictionary::Property, string >(); }
virtual unsigned long getArticleCount() throw()
{ return 0; }
virtual unsigned long getWordCount() throw()
{ return 0; }
virtual vector< wstring > findHeadwordsForSynonym( wstring const & )
throw( std::exception )
{
return vector< wstring >();
}
virtual string getArticle( wstring const &, vector< wstring > const & alts )
throw( Dictionary::exNoSuchWord, std::exception );
virtual void getResource( string const & name,
vector< char > & data )
throw( Dictionary::exNoSuchResource, std::exception );
private:
/// Loads the article. Does not process the DSL language.
void loadArticle( uint32_t address,
string & headword,
list< wstring > & displayedHeadwords,
wstring & articleText );
/// Converts DSL language to an Html.
string dslToHtml( wstring const & );
// Parts of dslToHtml()
string nodeToHtml( ArticleDom::Node const & );
string processNodeChildren( ArticleDom::Node const & node );
};
DslDictionary::DslDictionary( string const & id,
string const & indexFile,
vector< string > const & dictionaryFiles ):
BtreeDictionary( id, dictionaryFiles ),
idx( indexFile, "rb" ),
idxHeader( idx.read< IdxHeader >() ),
chunks( idx, idxHeader.chunksOffset )
{
// Open the .dict file
dz = dict_data_open( dictionaryFiles[ 0 ].c_str(), 0 );
if ( !dz )
throw exCantReadFile( dictionaryFiles[ 0 ] );
// Read the dictionary name
idx.seek( sizeof( idxHeader ) );
vector< char > dName( idx.read< uint32_t >() );
idx.read( &dName.front(), dName.size() );
dictionaryName = string( &dName.front(), dName.size() );
// Read the abrv, if any
if ( idxHeader.hasAbrv )
{
vector< char > chunk;
char * abrvBlock = chunks.getBlock( idxHeader.abrvAddress, chunk );
uint32_t total;
memcpy( &total, abrvBlock, sizeof( uint32_t ) );
abrvBlock += sizeof( uint32_t );
printf( "Loading %u abbrv\n", total );
while( total-- )
{
uint32_t keySz;
memcpy( &keySz, abrvBlock, sizeof( uint32_t ) );
abrvBlock += sizeof( uint32_t );
char * key = abrvBlock;
abrvBlock += keySz;
uint32_t valueSz;
memcpy( &valueSz, abrvBlock, sizeof( uint32_t ) );
abrvBlock += sizeof( uint32_t );
abrv[ string( key, keySz ) ] = string( abrvBlock, valueSz );
abrvBlock += valueSz;
}
}
// Initialize the index
idx.seek( idxHeader.indexOffset );
openIndex( idx );
}
DslDictionary::~DslDictionary()
{
if ( dz )
dict_data_close( dz );
}
void DslDictionary::loadArticle( uint32_t address,
string & headword,
list< wstring > & displayedHeadwords,
wstring & articleText )
{
wstring articleData;
{
vector< char > chunk;
char * articleProps = chunks.getBlock( address, chunk );
uint32_t articleOffset, articleSize;
memcpy( &articleOffset, articleProps, sizeof( articleOffset ) );
memcpy( &articleSize, articleProps + sizeof( articleOffset ),
sizeof( articleSize ) );
printf( "offset = %x\n", articleOffset );
char * articleBody = dict_data_read_( dz, articleOffset, articleSize, 0, 0 );
if ( !articleBody )
throw exCantReadFile( getDictionaryFilenames()[ 0 ] );
try
{
articleData =
DslIconv::toWstring(
DslIconv::getEncodingNameFor( DslEncoding( idxHeader.dslEncoding ) ),
articleBody, articleSize );
}
catch( ... )
{
free( articleBody );
throw;
}
}
size_t pos = articleData.find_first_of( L"\n\r" );
if ( pos == wstring::npos )
pos = articleData.size();
wstring firstHeadword( articleData, 0, pos );
printf( "first headword = %ls\n", firstHeadword.c_str() );
// Make a headword
{
wstring str( firstHeadword );
list< wstring > lst;
processUnsortedParts( str, true );
expandOptionalParts( str, lst );
headword = Utf8::encode( lst.front() );
}
// Generate displayed headwords
displayedHeadwords.clear();
processUnsortedParts( firstHeadword, false );
expandOptionalParts( firstHeadword, displayedHeadwords );
// Now skip alts until we reach the body itself
while ( pos != articleData.size() )
{
if ( articleData[ pos ] == '\r' )
++pos;
if ( pos != articleData.size() )
{
if ( articleData[ pos ] == '\n' )
++pos;
}
if ( pos != articleData.size() && !iswblank( articleData[ pos ] ) )
{
// Skip any alt headwords
pos = articleData.find_first_of( L"\n\r", pos );
if ( pos == wstring::npos )
pos = articleData.size();
}
else
break;
}
if ( pos != articleData.size() )
articleText = wstring( articleData, pos );
else
articleText = L"";
}
string DslDictionary::dslToHtml( wstring const & str )
{
ArticleDom dom( str );
string html = processNodeChildren( dom.root );
// Lines seem to indicate paragraphs in Dsls, so we enclose each line within
// a <p></p>.
for( size_t x = html.size(); x--; )
if ( html[ x ] == '\n' )
html.insert( x + 1, "</p><p>" );
return "<!-- DSL Source:\n" + Utf8::encode( str ) + "\n-->"
"<p>" + html + "</p>";
}
string DslDictionary::processNodeChildren( ArticleDom::Node const & node )
{
string result;
for( ArticleDom::Node::const_iterator i = node.begin(); i != node.end();
++i )
result += nodeToHtml( *i );
return result;
}
string DslDictionary::nodeToHtml( ArticleDom::Node const & node )
{
if ( !node.isTag )
return Html::escape( Utf8::encode( node.text ) );
string result;
if ( node.tagName == L"b" )
result += "<b class=\"dsl_b\">" + processNodeChildren( node ) + "</b>";
else
if ( node.tagName == L"i" )
result += "<i class=\"dsl_i\">" + processNodeChildren( node ) + "</i>";
else
if ( node.tagName == L"u" )
result += "<span class=\"dsl_u\">" + processNodeChildren( node ) + "</span>";
else
if ( node.tagName == L"c" )
{
result += "<font color=\"" + ( node.tagAttrs.size() ?
Html::escape( Utf8::encode( node.tagAttrs ) ) : string( "c_default_color" ) )
+ "\">" + processNodeChildren( node ) + "</font>";
}
else
if ( node.tagName == L"*" )
result += "<span class=\"dsl_opt\">" + processNodeChildren( node ) + "</span>";
else
if ( node.tagName.size() == 2 && node.tagName[ 0 ] == L'm' &&
iswdigit( node.tagName[ 1 ] ) )
result += "<div class=\"dsl_" + Utf8::encode( node.tagName ) + "\">" + processNodeChildren( node ) + "</div>";
else
if ( node.tagName == L"trn" )
result += "<span class=\"dsl_trn\">" + processNodeChildren( node ) + "</span>";
else
if ( node.tagName == L"ex" )
result += "<span class=\"dsl_ex\">" + processNodeChildren( node ) + "</span>";
else
if ( node.tagName == L"com" )
result += "<span class=\"dsl_com\">" + processNodeChildren( node ) + "</span>";
else
if ( node.tagName == L"s" )
{
string filename = Utf8::encode( node.renderAsText() );
if ( Filetype::isNameOfSound( filename ) )
{
// If we have the file here, do the exact reference to this dictionary.
// Otherwise, make a global 'search' one.
string n =
FsEncoding::dirname( getDictionaryFilenames()[ 0 ] ) +
FsEncoding::separator() +
FsEncoding::encode( filename );
bool search = true;
try
{
File::Class f( n, "r" );
search = false;
}
catch( File::Ex & )
{
}
string ref = "\"gdau://" + ( search ? string( "search" ) : getId() ) +
"/" + Html::escape( filename ) +"\"";
result += "<span class=\"dsl_s_wav\"><a href=" + ref
+ "><img src=\"qrcx://localhost/icons/playsound.png\" border=\"0\" align=\"absmiddle\" alt=\"Play\"/></a></span>";
}
else
if ( Filetype::isNameOfPicture( filename ) )
{
result += "<img src=\"bres://" + getId() + "/" + Html::escape( filename )
+ "\" alt=\"" + Html::escape( filename ) + "\"/>";
}
else
{
// Unknown file type, downgrade to a hyperlink
result += "<a class=\"dsl_s\" href=\"bres://" + getId() + "/" + Html::escape( filename )
+ "\">" + processNodeChildren( node ) + "</a>";
}
}
else
if ( node.tagName == L"url" )
result += "<a class=\"dsl_url\" href=\"" + Html::escape( Utf8::encode( node.renderAsText() ) ) +"\">" + processNodeChildren( node ) + "</a>";
else
if ( node.tagName == L"!trs" )
result += "<span class=\"dsl_trs\">" + processNodeChildren( node ) + "</span>";
else
if ( node.tagName == L"p" )
{
result += "<span class=\"dsl_p\"";
string val = Utf8::encode( node.renderAsText() );
// If we have such a key, display a title
map< string, string >::const_iterator i = abrv.find( val );
if ( i != abrv.end() )
result += " title=\"" + Html::escape( i->second ) + "\"";
result += ">" + processNodeChildren( node ) + "</span>";
}
else
if ( node.tagName == L"'" )
{
result += "<span class=\"dsl_stress\">" + processNodeChildren( node ) + "<span class=\"dsl_stacc\">" + Utf8::encode( wstring( 1, 0x301 ) ) + "</span></span>";
}
else
if ( node.tagName == L"lang" )
{
result += "<span class=\"dsl_lang\">" + processNodeChildren( node ) + "</span>";
}
else
if ( node.tagName == L"ref" )
{
result += "<a class=\"dsl_ref\" href=\"bword://" + Html::escape( Utf8::encode( node.renderAsText() ) ) +"\">" + processNodeChildren( node ) + "</a>";
}
else
if ( node.tagName == L"sub" )
{
result += "<sub>" + processNodeChildren( node ) + "</sub>";
}
else
if ( node.tagName == L"sup" )
{
result += "<sup>" + processNodeChildren( node ) + "</sup>";
}
else
if ( node.tagName == L"t" )
{
result += "<span class=\"dsl_t\">" + processNodeChildren( node ) + "</span>";
}
else
result += "<span class=\"dsl_unknown\">" + processNodeChildren( node ) + "</span>";
return result;
}
#if 0
vector< wstring > StardictDictionary::findHeadwordsForSynonym( wstring const & str )
throw( std::exception )
{
vector< wstring > result;
vector< WordArticleLink > chain = findArticles( str );
wstring caseFolded = Folding::applySimpleCaseOnly( str );
for( unsigned x = 0; x < chain.size(); ++x )
{
string headword, articleText;
loadArticle( chain[ x ].articleOffset,
headword, articleText );
wstring headwordDecoded = Utf8::decode( headword );
if ( caseFolded != Folding::applySimpleCaseOnly( headwordDecoded ) )
{
// The headword seems to differ from the input word, which makes the
// input word its synonym.
result.push_back( headwordDecoded );
}
}
return result;
}
#endif
string DslDictionary::getArticle( wstring const & word,
vector< wstring > const & alts )
throw( Dictionary::exNoSuchWord, std::exception )
{
vector< WordArticleLink > chain = findArticles( word );
for( unsigned x = 0; x < alts.size(); ++x )
{
/// Make an additional query for each alt
vector< WordArticleLink > altChain = findArticles( alts[ x ] );
chain.insert( chain.end(), altChain.begin(), altChain.end() );
}
multimap< wstring, string > mainArticles, alternateArticles;
set< uint32_t > articlesIncluded; // Some synonims make it that the articles
// appear several times. We combat this
// by only allowing them to appear once.
wstring wordCaseFolded = Folding::applySimpleCaseOnly( word );
for( unsigned x = 0; x < chain.size(); ++x )
{
if ( articlesIncluded.find( chain[ x ].articleOffset ) != articlesIncluded.end() )
continue; // We already have this article in the body.
// Now grab that article
string headword;
list< wstring > displayedHeadwords;
wstring articleBody;
loadArticle( chain[ x ].articleOffset, headword, displayedHeadwords,
articleBody );
string articleText;
articleText += "<span class=\"dsl_article\">";
articleText += "<div class=\"dsl_headwords\">";
for( list< wstring >::const_iterator i = displayedHeadwords.begin();
i != displayedHeadwords.end(); ++i )
articleText += dslToHtml( *i );
articleText += "</div>";
if ( displayedHeadwords.size() )
expandTildes( articleBody, displayedHeadwords.front() );
articleText += "<div class=\"dsl_definition\">";
articleText += dslToHtml( articleBody );
articleText += "</div>";
articleText += "</span>";
// Ok. Now, does it go to main articles, or to alternate ones? We list
// main ones first, and alternates after.
// We do the case-folded comparison here.
wstring headwordStripped =
Folding::applySimpleCaseOnly( Utf8::decode( headword ) );
multimap< wstring, string > & mapToUse =
( wordCaseFolded == headwordStripped ) ?
mainArticles : alternateArticles;
mapToUse.insert( pair< wstring, string >(
Folding::applySimpleCaseOnly( Utf8::decode( headword ) ),
articleText ) );
articlesIncluded.insert( chain[ x ].articleOffset );
}
if ( mainArticles.empty() && alternateArticles.empty() )
throw Dictionary::exNoSuchWord();
string result;
multimap< wstring, string >::const_iterator i;
for( i = mainArticles.begin(); i != mainArticles.end(); ++i )
result += i->second;
for( i = alternateArticles.begin(); i != alternateArticles.end(); ++i )
result += i->second;
return result;
}
void DslDictionary::getResource( string const & name,
vector< char > & data )
throw( Dictionary::exNoSuchResource, std::exception )
{
string n =
FsEncoding::dirname( getDictionaryFilenames()[ 0 ] ) +
FsEncoding::separator() +
FsEncoding::encode( name );
printf( "n is %s\n", n.c_str() );
try
{
File::Class f( n, "r" );
f.seekEnd();
data.resize( f.tell() );
f.rewind();
f.read( &data.front(), data.size() );
if ( Filetype::isNameOfTiff( name ) )
{
// Convert it
QImage img = QImage::fromData( (unsigned char *) &data.front(),
data.size() );
if ( img.isNull() )
{
// Failed to load, return data as is
return;
}
QByteArray ba;
QBuffer buffer( &ba );
buffer.open( QIODevice::WriteOnly );
img.save( &buffer, "BMP" );
data.resize( buffer.size() );
memcpy( &data.front(), buffer.data(), data.size() );
}
}
catch( File::Ex & )
{
throw Dictionary::exNoSuchResource();
}
}
} // anonymous namespace
static bool tryPossibleName( string const & name, string & copyTo )
{
try
{
File::Class f( name, "rb" );
copyTo = name;
return true;
}
catch( ... )
{
return false;
}
}
#if 0
static void findCorrespondingFiles( string const & ifo,
string & idx, string & dict, string & syn,
bool needSyn )
{
string base( ifo, 0, ifo.size() - 3 );
if ( !(
tryPossibleName( base + "idx", idx ) ||
tryPossibleName( base + "idx.gz", idx ) ||
tryPossibleName( base + "idx.dz", idx ) ||
tryPossibleName( base + "IDX", idx ) ||
tryPossibleName( base + "IDX.GZ", idx ) ||
tryPossibleName( base + "IDX.DZ", idx )
) )
throw exNoIdxFile( ifo );
if ( !(
tryPossibleName( base + "dict", dict ) ||
tryPossibleName( base + "dict.dz", dict ) ||
tryPossibleName( base + "DICT", dict ) ||
tryPossibleName( base + "dict.DZ", dict )
) )
throw exNoDictFile( ifo );
if ( needSyn && !(
tryPossibleName( base + "syn", syn ) ||
tryPossibleName( base + "syn.gz", syn ) ||
tryPossibleName( base + "syn.dz", syn ) ||
tryPossibleName( base + "SYN", syn ) ||
tryPossibleName( base + "SYN.GZ", syn ) ||
tryPossibleName( base + "SYN.DZ", syn )
) )
throw exNoSynFile( ifo );
}
#endif
vector< sptr< Dictionary::Class > > Format::makeDictionaries(
vector< string > const & fileNames,
string const & indicesDir,
Dictionary::Initializing & initializing )
throw( std::exception )
{
vector< sptr< Dictionary::Class > > dictionaries;
for( vector< string >::const_iterator i = fileNames.begin(); i != fileNames.end();
++i )
{
// Try .dsl and .dsl.dz suffixes
if ( ( i->size() < 4 ||
strcasecmp( i->c_str() + ( i->size() - 4 ), ".dsl" ) != 0 ) &&
( i->size() < 7 ||
strcasecmp( i->c_str() + ( i->size() - 7 ), ".dsl.dz" ) != 0 ) )
continue;
try
{
vector< string > dictFiles( 1, *i );
// Check if there is an 'abrv' file present
string baseName = ( (*i)[ i->size() - 4 ] == '.' ) ?
string( *i, 0, i->size() - 4 ) : string( *i, 0, i->size() - 7 );
string abrvFileName;
if ( tryPossibleName( baseName + "_abrv.dsl", abrvFileName ) ||
tryPossibleName( baseName + "_abrv.dsl.dz", abrvFileName ) ||
tryPossibleName( baseName + "_ABRV.DSL", abrvFileName ) ||
tryPossibleName( baseName + "_ABRV.DSL.DZ", abrvFileName ) ||
tryPossibleName( baseName + "_ABRV.DSL.dz", abrvFileName ) )
dictFiles.push_back( abrvFileName );
string dictId = makeDictionaryId( dictFiles );
string indexFile = indicesDir + dictId;
if ( needToRebuildIndex( dictFiles, indexFile ) ||
indexIsOldOrBad( indexFile ) )
{
DslScanner scanner( *i );
if ( scanner.getDictionaryName() == L"Abbrev" )
continue; // For now just skip abbreviations
// Building the index
initializing.indexingDictionary( Utf8::encode( scanner.getDictionaryName() ) );
printf( "Dictionary name: %ls\n", scanner.getDictionaryName().c_str() );
File::Class idx( indexFile, "wb" );
IdxHeader idxHeader;
memset( &idxHeader, 0, sizeof( idxHeader ) );
// We write a dummy header first. At the end of the process the header
// will be rewritten with the right values.
idx.write( idxHeader );
string dictionaryName = Utf8::encode( scanner.getDictionaryName() );
idx.write( (uint32_t) dictionaryName.size() );
idx.write( dictionaryName.data(), dictionaryName.size() );
idxHeader.dslEncoding = scanner.getEncoding();
IndexedWords indexedWords;
ChunkedStorage::Writer chunks( idx );
// Read the abbreviations
if ( abrvFileName.size() )
{
try
{
DslScanner abrvScanner( abrvFileName );
map< string, string > abrv;
wstring curString;
size_t curOffset;
for( ; ; )
{
// Skip any whitespace
if ( !abrvScanner.readNextLine( curString, curOffset ) )
break;
if ( curString.empty() || iswblank( curString[ 0 ] ) )
continue;
string key = Utf8::encode( curString );
if ( !abrvScanner.readNextLine( curString, curOffset ) )
{
fprintf( stderr, "Warning: premature end of file %s\n", abrvFileName.c_str() );
break;
}
if ( curString.empty() || !iswblank( curString[ 0 ] ) )
{
fprintf( stderr, "Warning: malformed file %s\n", abrvFileName.c_str() );
break;
}
curString.erase( 0, curString.find_first_not_of( L" \t" ) );
abrv[ key ] = Utf8::encode( curString );
}
idxHeader.hasAbrv = 1;
idxHeader.abrvAddress = chunks.startNewBlock();
uint32_t sz = abrv.size();
chunks.addToBlock( &sz, sizeof( uint32_t ) );
for( map< string, string >::const_iterator i = abrv.begin();
i != abrv.end(); ++i )
{
printf( "%s:%s\n", i->first.c_str(), i->second.c_str() );
sz = i->first.size();
chunks.addToBlock( &sz, sizeof( uint32_t ) );
chunks.addToBlock( i->first.data(), sz );
sz = i->second.size();
chunks.addToBlock( &sz, sizeof( uint32_t ) );
chunks.addToBlock( i->second.data(), sz );
}
}
catch( std::exception & e )
{
fprintf( stderr, "Error reading abrv file %s: %s. Skipping it.\n",
abrvFileName.c_str(), e.what() );
}
}
bool hasString = false;
wstring curString;
size_t curOffset;
for( ; ; )
{
// Find the main headword
if ( !hasString && !scanner.readNextLine( curString, curOffset ) )
break; // Clean end of file
hasString = false;
// The line read should either consist of pure whitespace, or be a
// headword
if ( curString.empty() )
continue;
if ( iswblank( curString[ 0 ] ) )
{
// The first character is blank. Let's make sure that all other
// characters are blank, too.
for( size_t x = 1; x < curString.size(); ++x )
{
if ( !iswblank( curString[ x ] ) )
{
fprintf( stderr, "Warning: garbage string in %s at offset 0x%X\n", i->c_str(), curOffset );
break;
}
}
continue;
}
// Ok, got the headword
list< wstring > allEntryWords;
processUnsortedParts( curString, true );
expandOptionalParts( curString, allEntryWords );
uint32_t articleOffset = curOffset;
//printf( "Headword: %ls\n", curString.c_str() );
// More headwords may follow
for( ; ; )
{
if ( ! ( hasString = scanner.readNextLine( curString, curOffset ) ) )
{
fprintf( stderr, "Warning: premature end of file %s\n", i->c_str() );
exit( 0 );
break;
}
if ( curString.empty() || iswblank( curString[ 0 ] ) )
break; // No more headwords
printf( "Alt headword: %ls\n", curString.c_str() );
processUnsortedParts( curString, true );
expandTildes( curString, allEntryWords.front() );
expandOptionalParts( curString, allEntryWords );
}
if ( !hasString )
break;
// Insert new entry
uint32_t descOffset = chunks.startNewBlock();
chunks.addToBlock( &articleOffset, sizeof( articleOffset ) );
for( list< wstring >::iterator j = allEntryWords.begin();
j != allEntryWords.end(); ++j )
{
unescapeDsl( *j );
wstring folded = Folding::apply( *j );
IndexedWords::iterator e = indexedWords.insert(
IndexedWords::value_type( folded, vector< WordArticleLink >() ) ).first;
// Try to conserve memory somewhat -- slow insertions are ok
e->second.reserve( e->second.size() + 1 );
e->second.push_back( WordArticleLink( Utf8::encode( *j ), descOffset ) );
}
// Skip the article's body
for( ; ; )
{
if ( ! ( hasString = scanner.readNextLine( curString, curOffset ) ) )
break;
if ( curString.size() && !iswblank( curString[ 0 ] ) )
break;
}
// Now that we're having read the first string after the article
// itself, we can use its offset to calculate the article's size.
// An end of file works here, too.
uint32_t articleSize = ( curOffset - articleOffset );
chunks.addToBlock( &articleSize, sizeof( articleSize ) );
if ( !hasString )
break;
}
// Finish with the chunks
idxHeader.chunksOffset = chunks.finish();
// Build index
idxHeader.indexOffset = BtreeIndexing::buildIndex( indexedWords, idx );
// That concludes it. Update the header.
idxHeader.signature = Signature;
idxHeader.formatVersion = CurrentFormatVersion;
idx.rewind();
idx.write( &idxHeader, sizeof( idxHeader ) );
}
dictionaries.push_back( new DslDictionary( dictId,
indexFile,
dictFiles ) );
}
catch( std::exception & e )
{
fprintf( stderr, "DSL dictionary reading failed: %s, error: %s\n",
i->c_str(), e.what() );
}
}
return dictionaries;
}
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __DSL_HH_INCLUDED__
#define __DSL_HH_INCLUDED__
#include "dictionary.hh"
/// Support for the ABBYY Lingo .DSL files.
namespace Dsl {
using std::vector;
using std::string;
class Format: public Dictionary::Format
{
public:
virtual vector< sptr< Dictionary::Class > > makeDictionaries(
vector< string > const & fileNames,
string const & indicesDir,
Dictionary::Initializing & )
throw( std::exception );
};
}
#endif

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "dsl_details.hh"
#include <wctype.h>
namespace Dsl {
namespace Details {
using std::wstring;
using std::list;
/////////////// ArticleDom
wstring ArticleDom::Node::renderAsText() const
{
if ( !isTag )
return text;
wstring result;
for( list< Node >::const_iterator i = begin(); i != end(); ++i )
result += i->renderAsText();
return result;
}
// Returns true if src == 'm' and dest is 'mX', where X is a digit
static inline bool checkM( wstring const & dest, wstring const & src )
{
return ( src == L"m" && dest.size() == 2 &&
dest[ 0 ] == L'm' && iswdigit( dest[ 1 ] ) );
}
ArticleDom::ArticleDom( wstring const & str ):
root( Node::Tag(), L"", L"" ), stringPos( str.c_str() )
{
list< Node * > stack; // Currently opened tags
Node * textNode = 0; // A leaf node which currently accumulates text.
try
{
for( ;; )
{
nextChar();
if ( ch == L'[' && !escaped )
{
// Beginning of a tag.
do
{
nextChar();
} while( iswblank( ch ) );
bool isClosing;
if ( ch == L'/' && !escaped )
{
// A closing tag.
isClosing = true;
nextChar();
}
else
isClosing = false;
// Read tag's name
wstring name;
while( ( ch != L']' || escaped ) && !iswblank( ch ) )
{
name.push_back( ch );
nextChar();
}
while( iswblank( ch ) )
nextChar();
// Read attrs
wstring attrs;
while( ch != L']' || escaped )
{
attrs.push_back( ch );
nextChar();
}
// Add the tag, or close it
if ( textNode )
{
// Close the currently opened text node
stack.pop_back();
textNode = 0;
}
if ( !isClosing )
{
Node node( Node::Tag(), name, attrs );
if ( stack.empty() )
{
root.push_back( node );
stack.push_back( &root.back() );
}
else
{
stack.back()->push_back( node );
stack.push_back( &stack.back()->back() );
}
}
else
{
// Find the tag which is to be closed
list< Node * >::reverse_iterator n;
for( n = stack.rbegin(); n != stack.rend(); ++n )
{
if ( (*n)->tagName == name || checkM( (*n)->tagName, name ) )
{
// Found it
break;
}
}
if ( n != stack.rend() )
{
// If there is a corresponding tag, close all tags above it,
// then close the tag itself, then reopen all the tags which got
// closed.
list< Node > nodesToReopen;
while( stack.size() )
{
bool found = stack.back()->tagName == name ||
checkM( stack.back()->tagName, name );
if ( !found )
nodesToReopen.push_back( Node( Node::Tag(), stack.back()->tagName,
stack.back()->tagAttrs ) );
if ( stack.back()->empty() )
{
// Empty nodes are deleted since they're no use
stack.pop_back();
Node * parent = stack.size() ? stack.back() : &root;
parent->pop_back();
}
else
stack.pop_back();
if ( found )
break;
}
while( nodesToReopen.size() )
{
if ( stack.empty() )
{
root.push_back( nodesToReopen.back() );
stack.push_back( &root.back() );
}
else
{
stack.back()->push_back( nodesToReopen.back() );
stack.push_back( &stack.back()->back() );
}
nodesToReopen.pop_back();
}
}
else
{
fprintf( stderr, "Warning: no corresponding opening tag for closing tag \"/%ls\" found.\n",
name.c_str() );
}
} // if ( isClosing )
continue;
} // if ( ch == '[' )
if ( ch == L'<' && !escaped )
{
// Special case: the <<name>> link
nextChar();
if ( ch != L'<' || escaped )
{
// Ok, it's not it.
--stringPos;
if ( escaped )
{
--stringPos;
escaped = false;
}
ch = L'<';
}
else
{
// Get the link's body
do
{
nextChar();
} while( iswblank( ch ) );
wstring linkTo;
for( ; ; nextChar() )
{
// Is it the end?
if ( ch == L'>' && !escaped )
{
nextChar();
if ( ch == L'>' && !escaped )
break;
else
{
linkTo.push_back( L'>' );
linkTo.push_back( ch );
}
}
else
linkTo.push_back( ch );
}
// Add the corresponding node
if ( textNode )
{
// Close the currently opened text node
stack.pop_back();
textNode = 0;
}
Node link( Node::Tag(), L"ref", L"" );
link.push_back( Node( Node::Text(), linkTo ) );
if ( stack.empty() )
root.push_back( link );
else
stack.back()->push_back( link );
continue;
}
} // if ( ch == '<' )
// If we're here, we've got a normal symbol, to be saved as text.
// If there's currently no text node, open one
if ( !textNode )
{
Node text( Node::Text(), L"" );
if ( stack.empty() )
{
root.push_back( text );
stack.push_back( &root.back() );
}
else
{
stack.back()->push_back( text );
stack.push_back( &stack.back()->back() );
}
textNode = stack.back();
}
textNode->text.push_back( ch );
} // for( ; ; )
}
catch( eot )
{
}
if ( textNode )
stack.pop_back();
if ( stack.size() )
fprintf( stderr, "Warning: %u tags were unclosed.\n", stack.size() );
}
void ArticleDom::nextChar() throw( eot )
{
if ( !*stringPos )
throw eot();
ch = *stringPos++;
if ( ch == L'\\' )
{
if ( !*stringPos )
throw eot();
ch = *stringPos++;
escaped = true;
}
else
escaped = false;
}
/////////////// DslScanner
DslScanner::DslScanner( string const & fileName ) throw( Ex, Iconv::Ex ):
encoding( Windows1252 ), iconv( encoding ), readBufferPtr( readBuffer ),
readBufferLeft( 0 )
{
// Since .dz is backwards-compatible with .gz, we use gz- functions to
// read it -- they are much nicer than the dict_data- ones.
f = gzopen( fileName.c_str(), "rb");
if ( !f )
throw exCantOpen( fileName );
// Now try guessing the encoding by reading the first two bytes
unsigned char firstBytes[ 2 ];
if ( gzread( f, firstBytes, sizeof( firstBytes ) ) != sizeof( firstBytes ) )
{
// Apparently the file's too short
gzclose( f );
throw exMalformedDslFile( fileName );
}
bool needExactEncoding = false;
// If the file begins with the dedicated Unicode marker, we just consume
// it. If, on the other hand, it's not, we return the bytes back
if ( firstBytes[ 0 ] == 0xFF && firstBytes[ 1 ] == 0xFE )
encoding = Utf16LE;
else
if ( firstBytes[ 0 ] == 0xFE && firstBytes[ 1 ] == 0xFF )
encoding = Utf16BE;
else
{
if ( firstBytes[ 0 ] && !firstBytes[ 1 ] )
encoding = Utf16LE;
else
if ( !firstBytes[ 0 ] && firstBytes[ 1 ] )
encoding = Utf16BE;
else
{
// Ok, this doesn't look like 16-bit Unicode. We will start with a
// 8-bit encoding with an intent to find out the exact one from
// the header.
needExactEncoding = true;
encoding = Windows1251;
}
if ( gzrewind( f ) )
{
gzclose( f );
throw exCantOpen( fileName );
}
}
iconv.reinit( encoding );
// We now can use our own readNextLine() function
wstring str;
size_t offset;
for( ; ; )
{
if ( !readNextLine( str, offset ) )
{
gzclose( f );
throw exMalformedDslFile( fileName );
}
if ( str.empty() || str[ 0 ] != L'#' )
break;
bool isName = false;
if ( !str.compare( 0, 5, L"#NAME", 5 ) )
isName = true;
else
if ( str.compare( 0, 17, L"#SOURCE_CODE_PAGE", 17 ) )
continue;
// Locate the argument
size_t beg = str.find_first_of( L'"' );
if ( beg == wstring::npos )
throw exMalformedDslFile( fileName );
size_t end = str.find_last_of( L'"' );
if ( end == beg )
throw exMalformedDslFile( fileName );
wstring arg( str, beg + 1, end - beg - 1 );
if ( isName )
dictionaryName = arg;
else
{
// The encoding
if ( !needExactEncoding )
{
// We don't need that!
fprintf( stderr, "Warning: encoding was specified in a Unicode file, ignoring.\n" );
}
else
if ( !wcscasecmp( arg.c_str(), L"Latin" ) )
encoding = Windows1252;
else
if ( !wcscasecmp( arg.c_str(), L"Cyrillic" ) )
encoding = Windows1251;
else
if ( !wcscasecmp( arg.c_str(), L"EasternEuropean" ) )
encoding = Windows1250;
else
{
gzclose( f );
throw exUnknownCodePage();
}
}
}
// The loop will always end up reading a line which was not a #-directive.
// We need to rewind to that line so readNextLine() would return it again
// next time it's called. To do that, we just use the slow gzseek() and
// empty the read buffer.
gzseek( f, offset, SEEK_SET );
readBufferPtr = readBuffer;
readBufferLeft = 0;
if ( needExactEncoding )
iconv.reinit( encoding );
}
DslScanner::~DslScanner() throw()
{
gzclose( f );
}
bool DslScanner::readNextLine( wstring & out, size_t & offset ) throw( Ex,
Iconv::Ex )
{
offset = (size_t)( gztell( f ) - readBufferLeft );
// For now we just read one char at a time
size_t readMultiple = distanceToBytes( 1 );
size_t leftInOut = wcharBuffer.size();
wchar_t * outPtr = &wcharBuffer.front();
for( ; ; )
{
// Check that we have bytes to read
if ( !readBufferLeft )
{
if ( gzeof( f ) )
return false;
// Read some more bytes to readBuffer
int result = gzread( f, readBuffer, sizeof( readBuffer ) );
if ( result == -1 )
throw exCantReadDslFile();
readBufferPtr = readBuffer;
readBufferLeft = (size_t) result;
}
if ( readBufferLeft < readMultiple )
{
// No more data. Return what we've got so far, forget the last byte if
// it was a 16-bit Unicode and a file had an odd number of bytes.
readBufferLeft = 0;
if ( outPtr != &wcharBuffer.front() )
{
// If there was a stray \r, remove it
if ( outPtr[ -1 ] == L'\r' )
--outPtr;
out = wstring( &wcharBuffer.front(), outPtr - &wcharBuffer.front() );
return true;
}
else
return false;
}
// Check that we have chars to write
if ( !leftInOut )
{
wcharBuffer.resize( wcharBuffer.size() + 64 );
outPtr = &wcharBuffer.front() + wcharBuffer.size() - 64;
leftInOut += 64;
}
// Ok, now convert one char
size_t inBytesLeft = readMultiple;
size_t outBytesLeft = sizeof( wchar_t );
if ( iconv.convert( (void const *&)readBufferPtr, inBytesLeft,
(void *&)outPtr, outBytesLeft ) !=
Iconv::Success || inBytesLeft || outBytesLeft )
throw exEncodingError();
readBufferLeft -= readMultiple;
--leftInOut;
// Have we got \n?
if ( outPtr[ -1 ] == L'\n' )
{
--outPtr;
// Now kill a \r if there is one, and return the result.
if ( outPtr != &wcharBuffer.front() && outPtr[ -1 ] == L'\r' )
--outPtr;
out = wstring( &wcharBuffer.front(), outPtr - &wcharBuffer.front() );
return true;
}
}
}
/////////////// DslScanner
DslIconv::DslIconv( DslEncoding e ) throw( Iconv::Ex ):
Iconv( Iconv::Wchar_t, getEncodingNameFor( e ) )
{
}
void DslIconv::reinit( DslEncoding e ) throw( Iconv::Ex )
{
Iconv::reinit( Iconv::Wchar_t, getEncodingNameFor( e ) );
}
char const * DslIconv::getEncodingNameFor( DslEncoding e )
{
switch( e )
{
case Utf16LE:
return "UTF-16LE";
case Utf16BE:
return "UTF-16BE";
case Windows1252:
return "WINDOWS-1252";
case Windows1251:
return "WINDOWS-1251";
case Windows1250:
default:
return "WINDOWS-1250";
}
}
void processUnsortedParts( wstring & str, bool strip )
{
int refCount = 0;
size_t startPos = 0;
for( size_t x = 0; x < str.size(); )
{
wchar_t ch = str[ x ];
if ( ch == L'\\' )
{
// Escape code
x += 2;
continue;
}
if ( ch == '{' )
{
++refCount;
if ( !strip )
{
// Just remove it and continue
str.erase( x, 1 );
continue;
}
else
if ( refCount == 1 )
{
// First opening brace. Save this position, we will be erasing the
// whole range when we encounter the last closing brace.
startPos = x;
}
}
else
if ( ch == '}' )
{
--refCount;
if ( refCount < 0 )
{
fprintf( stderr, "Warning: an unmatched closing brace was encountered.\n" );
refCount = 0;
// But we remove that thing either way
str.erase( x, 1 );
continue;
}
if ( !strip )
{
// Just remove it and continue
str.erase( x, 1 );
continue;
}
else
if ( !refCount )
{
// The final closing brace -- we can erase the whole range now.
str.erase( startPos, x - startPos + 1 );
x = startPos;
continue;
}
}
++x;
}
if ( strip && refCount )
{
fprintf( stderr, "Warning: unclosed brace(s) encountered.\n" );
str.erase( startPos );
}
}
void expandOptionalParts( wstring & str, list< wstring > & result,
size_t x )
{
for( ; x < str.size(); )
{
wchar_t ch = str[ x ];
if ( ch == L'\\' )
{
// Escape code
x += 2;
}
else
if ( ch == L'(' )
{
// First, handle the case where this block is removed
{
int refCount = 1;
for( size_t y = x + 1; y < str.size(); ++y )
{
wchar_t ch = str[ y ];
if ( ch == L'\\' )
{
// Escape code
++y;
}
else
if ( ch == L'(' )
++refCount;
else
if ( ch == L')' )
{
if ( !--refCount )
{
// Now that the closing parenthesis is found,
// cut the whole thing out and be done.
if ( y != x + 1 ) // Only do for non-empty cases
{
wstring removed( str, 0, x );
removed.append( str, y + 1, str.size() - y - 1 );
expandOptionalParts( removed, result, x );
}
break;
}
}
}
if ( refCount && x != str.size() - 1 )
{
// Closing paren not found? Chop it.
wstring removed( str, 0, x );
result.push_back( removed );
}
}
// Now, handling the case where it is kept -- we just erase
// the paren and go on
str.erase( x, 1 );
}
else
if ( ch == L')' )
{
// Closing paren doesn't mean much -- just erase it
str.erase( x, 1 );
}
else
++x;
}
result.push_back( str );
}
void expandTildes( wstring & str, wstring const & tildeReplacement )
{
for( size_t x = 0; x < str.size(); )
if ( str[ x ] == L'\\' )
x+=2;
else
if ( str[ x ] == L'~' )
{
str.replace( x, 1, tildeReplacement );
x += tildeReplacement.size();
}
else
++x;
}
void unescapeDsl( wstring & str )
{
for( size_t x = 0; x < str.size(); ++x )
if ( str[ x ] == L'\\' )
str.erase( x, 1 ); // ++x would skip the next char without processing it
}
}
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __DSL_DETAILS_HH_INCLUDED__
#define __DSL_DETAILS_HH_INCLUDED__
#include <string>
#include <list>
#include <vector>
#include <zlib.h>
#include "dictionary.hh"
#include "iconv.hh"
// Implementation details for Dsl, not part of its interface
namespace Dsl {
namespace Details {
using std::string;
using std::wstring;
using std::list;
using std::vector;
// Those are possible encodings for .dsl files
enum DslEncoding
{
Utf16LE,
Utf16BE,
Windows1252,
Windows1251,
Windows1250
};
/// Parses the DSL language, representing it in its structural DOM form.
struct ArticleDom
{
struct Node: public list< Node >
{
bool isTag; // true if it is a tag with subnodes, false if it's a leaf text
// data.
// Those are only used if isTag is true
wstring tagName;
wstring tagAttrs;
wstring text; // This is only used if isTag is false
class Text {};
class Tag {};
Node( Tag, wstring const & name, wstring const & attrs ): isTag( true ),
tagName( name ), tagAttrs( attrs )
{}
Node( Text, wstring const & text_ ): isTag( false ), text( text_ )
{}
/// Concatenates all childen text nodes recursively to form all text
/// the node contains stripped of any markup.
wstring renderAsText() const;
};
/// Does the parse at construction. Refer to the 'root' member variable
/// afterwards.
ArticleDom( wstring const & );
/// Root of DOM's tree
Node root;
private:
wchar_t const * stringPos;
class eot {};
wchar_t ch;
bool escaped;
void nextChar() throw( eot );
};
/// A adapted version of Iconv which takes Dsl encoding and decodes to wchar_t.
class DslIconv: public Iconv
{
public:
DslIconv( DslEncoding ) throw( Iconv::Ex );
void reinit( DslEncoding ) throw( Iconv::Ex );
/// Returns a name to be passed to iconv for the given dsl encoding.
static char const * getEncodingNameFor( DslEncoding );
};
/// Opens the .dsl or .dsl.dz file and allows line-by-line reading. Auto-detects
/// the encoding, and reads all headers by itself.
class DslScanner
{
gzFile f;
DslEncoding encoding;
DslIconv iconv;
wstring dictionaryName;
char readBuffer[ 65536 ];
char * readBufferPtr;
size_t readBufferLeft;
vector< wchar_t > wcharBuffer;
public:
DEF_EX( Ex, "Dsl scanner exception", Dictionary::Ex )
DEF_EX_STR( exCantOpen, "Can't open .dsl file", Ex )
DEF_EX( exCantReadDslFile, "Can't read .dsl file", Ex )
DEF_EX_STR( exMalformedDslFile, "The .dsl file is malformed:", Ex )
DEF_EX( exUnknownCodePage, "The .dsl file specified an unknown code page", Ex )
DEF_EX( exEncodingError, "Encoding error", Ex ) // Should never happen really
DslScanner( string const & fileName ) throw( Ex, Iconv::Ex );
~DslScanner() throw();
/// Returns the detected encoding of this file.
DslEncoding getEncoding() const
{ return encoding; }
/// Returns the dictionary's name, as was read from file's headers.
wstring const & getDictionaryName() const
{ return dictionaryName; }
/// Reads next line from the file. Returns true if reading succeeded --
/// the string gets stored in the one passed, along with its physical
/// file offset in the file (the uncompressed one if the file is compressed).
/// If end of file is reached, false is returned.
/// Reading begins from the first line after the headers (ones which start
/// with #).
bool readNextLine( wstring &, size_t & offset ) throw( Ex, Iconv::Ex );
/// Converts the given number of characters to the number of bytes they
/// would occupy in the file, knowing its encoding. It's possible to know
/// that because no multibyte encodings are supported in .dsls.
inline size_t distanceToBytes( size_t ) const;
};
/// This function either removes parts of string enclosed in braces, or leaves
/// them intact. The braces themselves are removed always, though.
void processUnsortedParts( wstring & str, bool strip );
/// Expands optional parts of a headword (ones marked with parentheses),
/// producing all possible combinations where they are present or absent.
void expandOptionalParts( wstring & str, list< wstring > & result,
size_t x = 0 );
/// Expands all unescaped tildes, inserting tildeReplacement text instead of
/// them.
void expandTildes( wstring & str, wstring const & tildeReplacement );
// Unescapes any escaped chars. Be sure to handle all their special meanings
// before unescaping them.
void unescapeDsl( wstring & str );
inline size_t DslScanner::distanceToBytes( size_t x ) const
{
switch( encoding )
{
case Utf16LE:
case Utf16BE:
return x*2;
default:
return x;
}
}
}
}
#endif

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __EX_HH_INCLUDED__
#define __EX_HH_INCLUDED__
#include <string>
/// A way to declare an exception class fast
/// Do like this:
/// DEF_EX( exErrorInFoo, "An error in foo encountered", std::exception )
/// DEF_EX( exFooNotFound, "Foo was not found", exErrorInFoo )
#define DEF_EX( exName, exDescription, exParent ) \
class exName: public exParent { \
public: \
virtual const char * what() const throw() { return (exDescription); } \
virtual ~exName() throw() {} };
/// Same as DEF_EX, but takes a runtime string argument, which gets concatenated
/// with the description.
///
/// DEF_EX_STR( exCantOpen, "can't open file", std::exception )
/// ...
/// throw exCantOpen( "example.txt" );
///
/// what() would return "can't open file example.txt"
#define DEF_EX_STR( exName, exDescription, exParent ) \
class exName: public exParent { \
std::string value; \
public: \
exName( std::string const & value_ ): value( std::string( exDescription ) + " " + value_ ) {} \
virtual const char * what() const throw() { return value.c_str(); } \
virtual ~exName() throw() {} };
#endif

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "externalviewer.hh"
#include <QDir>
using std::vector;
ExternalViewer::ExternalViewer( QObject * parent, vector< char > const & data,
QString const & extension,
QString const & viewerProgram_ )
throw( exCantCreateTempFile ):
QObject( parent ),
tempFile( QDir::temp().filePath( QString( "gd-XXXXXXXX." ) + extension ) ),
viewer( this ),
viewerProgram( viewerProgram_ )
{
if ( !tempFile.open() || tempFile.write( &data.front(), data.size() ) != data.size() )
throw exCantCreateTempFile();
tempFileName = tempFile.fileName(); // For some reason it loses it after it was closed()
tempFile.close();
printf( "%s\n", tempFile.fileName().toLocal8Bit().data() );
connect( &viewer, SIGNAL( finished( int, QProcess::ExitStatus ) ),
this, SLOT( viewerFinished( int, QProcess::ExitStatus ) ) );
connect( this, SIGNAL( finished( ExternalViewer * ) ),
&ExternalViewerDeleter::instance(), SLOT( deleteExternalViewer( ExternalViewer * ) ),
Qt::QueuedConnection );
}
void ExternalViewer::start() throw( exCantRunViewer )
{
viewer.start( viewerProgram, QStringList( tempFileName ), QIODevice::NotOpen );
if ( !viewer.waitForStarted() )
throw exCantRunViewer( viewerProgram.toStdString() );
}
void ExternalViewer::viewerFinished( int, QProcess::ExitStatus )
{
emit finished( this );
}
ExternalViewerDeleter & ExternalViewerDeleter::instance()
{
static ExternalViewerDeleter evd( 0 );
return evd;
}
void ExternalViewerDeleter::deleteExternalViewer( ExternalViewer * e )
{
printf( "Deleting external viewer\n" );
delete e;
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __EXTERNALVIEWER_HH_INCLUDED__
#define __EXTERNALVIEWER_HH_INCLUDED__
#include <QObject>
#include <QTemporaryFile>
#include <QProcess>
#include <vector>
#include "ex.hh"
/// An external viewer, opens resources in other programs
class ExternalViewer: public QObject
{
Q_OBJECT
QTemporaryFile tempFile;
QProcess viewer;
QString viewerProgram;
QString tempFileName;
public:
DEF_EX( Ex, "External viewer exception", std::exception )
DEF_EX( exCantCreateTempFile, "Couldn't create temporary file.", Ex )
DEF_EX_STR( exCantRunViewer, "Couldn't run external viewer:", Ex )
ExternalViewer( QObject * parent, std::vector< char > const & data,
QString const & extension, QString const & viewerProgram )
throw( exCantCreateTempFile );
void start() throw( exCantRunViewer );
private slots:
void viewerFinished( int, QProcess::ExitStatus );
signals:
void finished( ExternalViewer * );
};
class ExternalViewerDeleter: public QObject
{
Q_OBJECT
public:
static ExternalViewerDeleter & instance();
public slots:
void deleteExternalViewer( ExternalViewer * e );
private:
ExternalViewerDeleter( QObject * parent ): QObject( parent )
{}
};
#endif

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "file.hh"
#include <cstring>
#include <cerrno>
namespace File {
enum
{
// We employ a writing buffer to considerably speed up file operations when
// they consists of many small writes. The default size for the buffer is 64k
WriteBufferSize = 65536
};
void Class::open( char const * filename, char const * mode ) throw( exCantOpen )
{
f = fopen( filename, mode );
if ( !f )
throw exCantOpen( std::string( filename ) + ": " + strerror( errno ) );
}
Class::Class( char const * filename, char const * mode ) throw( exCantOpen ):
writeBuffer( 0 )
{
open( filename, mode );
}
Class::Class( std::string const & filename, char const * mode )
throw( exCantOpen ): writeBuffer( 0 )
{
open( filename.c_str(), mode );
}
void Class::read( void * buf, size_t size ) throw( exReadError, exWriteError )
{
if ( !size )
return;
if ( writeBuffer )
flushWriteBuffer();
size_t result = fread( buf, size, 1, f );
if ( result != 1 )
throw exReadError();
}
size_t Class::readRecords( void * buf, size_t size, size_t count ) throw( exWriteError )
{
if ( writeBuffer )
flushWriteBuffer();
return fread( buf, size, count, f );
}
void Class::write( void const * buf, size_t size ) throw( exWriteError )
{
if ( !size )
return;
if ( size >= WriteBufferSize )
{
// If the write is large, there's not much point in buffering
flushWriteBuffer();
size_t result = fwrite( buf, size, 1, f );
if ( result != 1 )
throw exWriteError();
return;
}
if ( !writeBuffer )
{
// Allocate the writing buffer since we don't have any yet
writeBuffer = new char[ WriteBufferSize ];
writeBufferLeft = WriteBufferSize;
}
size_t toAdd = size < writeBufferLeft ? size : writeBufferLeft;
memcpy( writeBuffer + ( WriteBufferSize - writeBufferLeft ),
buf, toAdd );
size -= toAdd;
writeBufferLeft -= toAdd;
if ( !writeBufferLeft ) // Out of buffer? Flush it.
{
flushWriteBuffer();
if ( size ) // Something's still left? Add to buffer.
{
memcpy( writeBuffer, (char const *)buf + toAdd, size );
writeBufferLeft -= size;
}
}
}
size_t Class::writeRecords( void const * buf, size_t size, size_t count )
throw( exWriteError )
{
flushWriteBuffer();
return fwrite( buf, size, count, f );
}
char * Class::gets( char * s, int size, bool stripNl )
throw( exWriteError )
{
if ( writeBuffer )
flushWriteBuffer();
char * result = fgets( s, size, f );
if ( result && stripNl )
{
size_t len = strlen( result );
char * last = result + len;
while( len-- )
{
--last;
if ( *last == '\n' || *last == '\r' )
*last = 0;
else
break;
}
}
return result;
}
std::string Class::gets( bool stripNl ) throw( exReadError, exWriteError )
{
char buf[ 1024 ];
if ( !gets( buf, sizeof( buf ), stripNl ) )
throw exReadError();
return std::string( buf );
}
void Class::seek( long offset ) throw( exSeekError, exWriteError )
{
if ( writeBuffer )
flushWriteBuffer();
if ( fseek( f, offset, SEEK_SET ) != 0 )
throw exSeekError();
}
void Class::seekCur( long offset ) throw( exSeekError, exWriteError )
{
if ( writeBuffer )
flushWriteBuffer();
if ( fseek( f, offset, SEEK_CUR ) != 0 )
throw exSeekError();
}
void Class::seekEnd( long offset ) throw( exSeekError, exWriteError )
{
if ( writeBuffer )
flushWriteBuffer();
if ( fseek( f, offset, SEEK_END ) != 0 )
throw exSeekError();
}
void Class::rewind() throw( exSeekError, exWriteError )
{
seek( 0 );
}
size_t Class::tell() throw( exSeekError )
{
long result = ftell( f );
if ( result == -1 )
throw exSeekError();
if ( writeBuffer )
result += ( WriteBufferSize - writeBufferLeft );
return ( size_t ) result;
}
bool Class::eof() throw( exWriteError )
{
if ( writeBuffer )
flushWriteBuffer();
return feof( f );
}
FILE * Class::file() throw( exWriteError )
{
flushWriteBuffer();
return f;
}
FILE * Class::release() throw( exWriteError )
{
releaseWriteBuffer();
FILE * c = f;
f = 0;
return c;
}
void Class::close() throw( exWriteError )
{
fclose( release() );
}
Class::~Class() throw()
{
if ( f )
{
try
{
releaseWriteBuffer();
}
catch( exWriteError & )
{
}
fclose( f );
}
}
void Class::flushWriteBuffer() throw( exWriteError )
{
if ( writeBuffer && writeBufferLeft != WriteBufferSize )
{
size_t result = fwrite( writeBuffer, WriteBufferSize - writeBufferLeft, 1, f );
if ( result != 1 )
throw exWriteError();
writeBufferLeft = WriteBufferSize;
}
}
void Class::releaseWriteBuffer() throw( exWriteError )
{
flushWriteBuffer();
if ( writeBuffer )
{
delete [] writeBuffer;
writeBuffer = 0;
}
}
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __FILE_HH_INCLUDED__
#define __FILE_HH_INCLUDED__
#include <cstdio>
#include <string>
#include "ex.hh"
/// A simple wrapper over FILE * operations with added write-buffering,
/// used for non-Qt parts of code.
/// It is possible to ifdef implementation details for some platforms.
namespace File {
DEF_EX( Ex, "File exception", std::exception )
DEF_EX_STR( exCantOpen, "Can't open", Ex )
DEF_EX( exReadError, "Error reading from the file", Ex )
DEF_EX( exWriteError, "Error writing to the file", Ex )
DEF_EX( exSeekError, "File seek error", Ex )
class Class
{
FILE * f;
char * writeBuffer;
size_t writeBufferLeft;
void open( char const * filename, char const * mode ) throw( exCantOpen );
public:
Class( char const * filename, char const * mode ) throw( exCantOpen );
Class( std::string const & filename, char const * mode ) throw( exCantOpen );
/// Reads the number of bytes to the buffer, throws an error if it
/// failed to fill the whole buffer (short read, i/o error etc).
void read( void * buf, size_t size ) throw( exReadError, exWriteError );
template< typename T >
void read( T & value ) throw( exReadError, exWriteError )
{ read( &value, sizeof( value ) ); }
template< typename T >
T read() throw( exReadError, exWriteError )
{ T value; read( value ); return value; }
/// Attempts reading at most 'count' records sized 'size'. Returns
/// the number of records it managed to read, up to 'count'.
size_t readRecords( void * buf, size_t size, size_t count ) throw( exWriteError );
/// Writes the number of bytes from the buffer, throws an error if it
/// failed to write the whole buffer (short write, i/o error etc).
/// This function employs write buffering, and as such, writes may not
/// end up on disk immediately, or a short write may occur later
/// than it really did. If you don't want write buffering, use
/// writeRecords() function instead.
void write( void const * buf, size_t size ) throw( exWriteError );
template< typename T >
void write( T const & value ) throw( exWriteError )
{ write( &value, sizeof( value ) ); }
/// Attempts writing at most 'count' records sized 'size'. Returns
/// the number of records it managed to write, up to 'count'.
/// This function does not employ buffering, but flushes the buffer if it
/// was used before.
size_t writeRecords( void const * buf, size_t size, size_t count )
throw( exWriteError );
/// Reads a string from the file. Unlike the normal fgets(), this one
/// can strip the trailing newline character, if this was requested.
/// Returns either s or 0 if no characters were read.
char * gets( char * s, int size, bool stripNl = false ) throw( exWriteError );
/// Like the above, but uses its own local internal buffer (1024 bytes
/// currently), and strips newlines by default.
std::string gets( bool stripNl = true ) throw( exReadError, exWriteError );
/// Seeks in the file, relative to its beginning.
void seek( long offset ) throw( exSeekError, exWriteError );
/// Seeks in the file, relative to the current position.
void seekCur( long offset ) throw( exSeekError, exWriteError );
/// Seeks in the file, relative to the end of file.
void seekEnd( long offset = 0 ) throw( exSeekError, exWriteError );
/// Seeks to the beginning of file
void rewind() throw( exSeekError, exWriteError );
/// Tells the current position within the file, relative to its beginning.
size_t tell() throw( exSeekError );
/// Returns true if end-of-file condition is set.
bool eof() throw( exWriteError );
/// Returns the underlying FILE * record, so other operations can be
/// performed on it.
FILE * file() throw( exWriteError );
/// Releases the file handle out of the control of the class. No further
/// operations are valid. The file will not be closed on destruction.
FILE * release() throw( exWriteError );
/// Closes the file. No further operations are valid.
void close() throw( exWriteError );
~Class() throw();
private:
void flushWriteBuffer() throw( exWriteError );
void releaseWriteBuffer() throw( exWriteError );
};
}
#endif

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "filetype.hh"
#include <ctype.h>
namespace Filetype {
namespace {
/// Removes any trailing or leading spaces and lowercases the string.
/// The lowercasing is done simplistically, but it is enough for file
/// extensions.
string simplifyString( string const & str )
{
string result;
size_t beginPos = 0;
while( beginPos < str.size() && isblank( str[ beginPos ] ) );
size_t endPos = str.size();
while( endPos && isblank( str[ endPos - 1 ] ) )
--endPos;
result.reserve( endPos - beginPos );
while( beginPos < endPos )
result.push_back( tolower( str[ beginPos++ ] ) );
return result;
}
/// Checks if the given string ends with the given substring
bool endsWith( string const & str, string const & tail )
{
return str.size() >= tail.size() &&
str.compare( str.size() - tail.size(), tail.size(), tail ) == 0;
}
}
bool isNameOfSound( string const & name )
{
string s = simplifyString( name );
return
endsWith( s, ".wav" ) ||
endsWith( s, ".au" ) ||
endsWith( s, ".voc" ) ||
endsWith( s, ".ogg" ) ||
endsWith( s, ".mp3" );
}
bool isNameOfPicture( string const & name )
{
string s = simplifyString( name );
return
endsWith( s, ".jpg" ) ||
endsWith( s, ".jpeg" ) ||
endsWith( s, ".jpe" ) ||
endsWith( s, ".png" ) ||
endsWith( s, ".gif" ) ||
endsWith( s, ".bmp" ) ||
endsWith( s, ".tif" ) ||
endsWith( s, ".tiff" ) ||
endsWith( s, ".tga" ) ||
endsWith( s, ".pcx" ) ||
endsWith( s, ".ico" ) ||
endsWith( s, ".svg" );
}
bool isNameOfTiff( string const & name )
{
string s = simplifyString( name );
return
endsWith( s, ".tif" ) ||
endsWith( s, ".tiff" );
}
}

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/* This file is (c) 2008-2009 Konstantin Isakov <ikm@users.sf.net>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#ifndef __FILETYPE_HH_INCLUDED__
#define __FILETYPE_HH_INCLUDED__
#include <string>
/// Utilities to guess file types based on their names.
namespace Filetype {
using std::string;
/// Returns true if the name resembles the one of a sound file (i.e. ends
/// with .wav, .ogg and such).
bool isNameOfSound( string const & );
/// Returns true if the name resembles the one of a picture file (i.e. ends
/// with .jpg, .png and such).
bool isNameOfPicture( string const & );
/// Returns true if the name resembles the one of a .tiff file (i.e. ends
/// with .tif or tiff). We have this one separately since we need to reconvert
/// TIFF files as WebKit doesn't seem to support them.
bool isNameOfTiff( string const & );
}
#endif

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<RCC>
<qresource>
<file>flags/ad.png</file>
<file>flags/ae.png</file>
<file>flags/af.png</file>
<file>flags/ag.png</file>
<file>flags/ai.png</file>
<file>flags/al.png</file>
<file>flags/am.png</file>
<file>flags/an.png</file>
<file>flags/ao.png</file>
<file>flags/ar.png</file>
<file>flags/as.png</file>
<file>flags/at.png</file>
<file>flags/au.png</file>
<file>flags/aw.png</file>
<file>flags/ax.png</file>
<file>flags/az.png</file>
<file>flags/ba.png</file>
<file>flags/bb.png</file>
<file>flags/bd.png</file>
<file>flags/be.png</file>
<file>flags/bf.png</file>
<file>flags/bg.png</file>
<file>flags/bh.png</file>
<file>flags/bi.png</file>
<file>flags/bj.png</file>
<file>flags/bm.png</file>
<file>flags/bn.png</file>
<file>flags/bo.png</file>
<file>flags/br.png</file>
<file>flags/bs.png</file>
<file>flags/bt.png</file>
<file>flags/bv.png</file>
<file>flags/bw.png</file>
<file>flags/by.png</file>
<file>flags/bz.png</file>
<file>flags/ca.png</file>
<file>flags/catalonia.png</file>
<file>flags/cc.png</file>
<file>flags/cd.png</file>
<file>flags/cf.png</file>
<file>flags/cg.png</file>
<file>flags/ch.png</file>
<file>flags/ci.png</file>
<file>flags/ck.png</file>
<file>flags/cl.png</file>
<file>flags/cm.png</file>
<file>flags/cn.png</file>
<file>flags/co.png</file>
<file>flags/cr.png</file>
<file>flags/cs.png</file>
<file>flags/cu.png</file>
<file>flags/cv.png</file>
<file>flags/cx.png</file>
<file>flags/cy.png</file>
<file>flags/cz.png</file>
<file>flags/de.png</file>
<file>flags/dj.png</file>
<file>flags/dk.png</file>
<file>flags/dm.png</file>
<file>flags/do.png</file>
<file>flags/dz.png</file>
<file>flags/ec.png</file>
<file>flags/ee.png</file>
<file>flags/eg.png</file>
<file>flags/eh.png</file>
<file>flags/england.png</file>
<file>flags/er.png</file>
<file>flags/es.png</file>
<file>flags/et.png</file>
<file>flags/europeanunion.png</file>
<file>flags/fam.png</file>
<file>flags/fi.png</file>
<file>flags/fj.png</file>
<file>flags/fk.png</file>
<file>flags/fm.png</file>
<file>flags/fo.png</file>
<file>flags/fr.png</file>
<file>flags/ga.png</file>
<file>flags/gb.png</file>
<file>flags/gd.png</file>
<file>flags/ge.png</file>
<file>flags/gf.png</file>
<file>flags/gh.png</file>
<file>flags/gi.png</file>
<file>flags/gl.png</file>
<file>flags/gm.png</file>
<file>flags/gn.png</file>
<file>flags/gp.png</file>
<file>flags/gq.png</file>
<file>flags/gr.png</file>
<file>flags/gs.png</file>
<file>flags/gt.png</file>
<file>flags/gu.png</file>
<file>flags/gw.png</file>
<file>flags/gy.png</file>
<file>flags/hk.png</file>
<file>flags/hm.png</file>
<file>flags/hn.png</file>
<file>flags/hr.png</file>
<file>flags/ht.png</file>
<file>flags/hu.png</file>
<file>flags/id.png</file>
<file>flags/ie.png</file>
<file>flags/il.png</file>
<file>flags/in.png</file>
<file>flags/io.png</file>
<file>flags/iq.png</file>
<file>flags/ir.png</file>
<file>flags/is.png</file>
<file>flags/it.png</file>
<file>flags/jm.png</file>
<file>flags/jo.png</file>
<file>flags/jp.png</file>
<file>flags/ke.png</file>
<file>flags/kg.png</file>
<file>flags/kh.png</file>
<file>flags/ki.png</file>
<file>flags/km.png</file>
<file>flags/kn.png</file>
<file>flags/kp.png</file>
<file>flags/kr.png</file>
<file>flags/kw.png</file>
<file>flags/ky.png</file>
<file>flags/kz.png</file>
<file>flags/la.png</file>
<file>flags/lb.png</file>
<file>flags/lc.png</file>
<file>flags/li.png</file>
<file>flags/lk.png</file>
<file>flags/lr.png</file>
<file>flags/ls.png</file>
<file>flags/lt.png</file>
<file>flags/lu.png</file>
<file>flags/lv.png</file>
<file>flags/ly.png</file>
<file>flags/ma.png</file>
<file>flags/mc.png</file>
<file>flags/md.png</file>
<file>flags/me.png</file>
<file>flags/mg.png</file>
<file>flags/mh.png</file>
<file>flags/mk.png</file>
<file>flags/ml.png</file>
<file>flags/mm.png</file>
<file>flags/mn.png</file>
<file>flags/mo.png</file>
<file>flags/mp.png</file>
<file>flags/mq.png</file>
<file>flags/mr.png</file>
<file>flags/ms.png</file>
<file>flags/mt.png</file>
<file>flags/mu.png</file>
<file>flags/mv.png</file>
<file>flags/mw.png</file>
<file>flags/mx.png</file>
<file>flags/my.png</file>
<file>flags/mz.png</file>
<file>flags/na.png</file>
<file>flags/nc.png</file>
<file>flags/ne.png</file>
<file>flags/nf.png</file>
<file>flags/ng.png</file>
<file>flags/ni.png</file>
<file>flags/nl.png</file>
<file>flags/no.png</file>
<file>flags/np.png</file>
<file>flags/nr.png</file>
<file>flags/nu.png</file>
<file>flags/nz.png</file>
<file>flags/om.png</file>
<file>flags/pa.png</file>
<file>flags/pe.png</file>
<file>flags/pf.png</file>
<file>flags/pg.png</file>
<file>flags/ph.png</file>
<file>flags/pk.png</file>
<file>flags/pl.png</file>
<file>flags/pm.png</file>
<file>flags/pn.png</file>
<file>flags/pr.png</file>
<file>flags/ps.png</file>
<file>flags/pt.png</file>
<file>flags/pw.png</file>
<file>flags/py.png</file>
<file>flags/qa.png</file>
<file>flags/re.png</file>
<file>flags/ro.png</file>
<file>flags/rs.png</file>
<file>flags/ru.png</file>
<file>flags/rw.png</file>
<file>flags/sa.png</file>
<file>flags/sb.png</file>
<file>flags/scotland.png</file>
<file>flags/sc.png</file>
<file>flags/sd.png</file>
<file>flags/se.png</file>
<file>flags/sg.png</file>
<file>flags/sh.png</file>
<file>flags/si.png</file>
<file>flags/sj.png</file>
<file>flags/sk.png</file>
<file>flags/sl.png</file>
<file>flags/sm.png</file>
<file>flags/sn.png</file>
<file>flags/so.png</file>
<file>flags/sr.png</file>
<file>flags/st.png</file>
<file>flags/sv.png</file>
<file>flags/sy.png</file>
<file>flags/sz.png</file>
<file>flags/tc.png</file>
<file>flags/td.png</file>
<file>flags/tf.png</file>
<file>flags/tg.png</file>
<file>flags/th.png</file>
<file>flags/tj.png</file>
<file>flags/tk.png</file>
<file>flags/tl.png</file>
<file>flags/tm.png</file>
<file>flags/tn.png</file>
<file>flags/to.png</file>
<file>flags/tr.png</file>
<file>flags/tt.png</file>
<file>flags/tv.png</file>
<file>flags/tw.png</file>
<file>flags/tz.png</file>
<file>flags/ua.png</file>
<file>flags/ug.png</file>
<file>flags/um.png</file>
<file>flags/us.png</file>
<file>flags/uy.png</file>
<file>flags/uz.png</file>
<file>flags/va.png</file>
<file>flags/vc.png</file>
<file>flags/ve.png</file>
<file>flags/vg.png</file>
<file>flags/vi.png</file>
<file>flags/vn.png</file>
<file>flags/vu.png</file>
<file>flags/wales.png</file>
<file>flags/wf.png</file>
<file>flags/ws.png</file>
<file>flags/ye.png</file>
<file>flags/yt.png</file>
<file>flags/za.png</file>
<file>flags/zm.png</file>
<file>flags/zw.png</file>
</qresource>
</RCC>

6
src/flags/00readme.txt Normal file
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@ -0,0 +1,6 @@
These icons were taken from http://www.famfamfam.com/lab/icons/flags/
Licensed under the following conditions:
"These flag icons are available for free use for any purpose with no
requirement for attribution."

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