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goldendict-ng/xdxf2html.cc

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/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "xdxf2html.hh"
#include <QtXml>
#include "gddebug.hh"
#include "utf8.hh"
#include "wstring_qt.hh"
#include "folding.hh"
#include "fsencoding.hh"
#include "audiolink.hh"
#include "file.hh"
#include "filetype.hh"
#include "htmlescape.hh"
#include "qt4x5.hh"
#include <QDebug>
#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
#include <QRegularExpression>
#endif
namespace Xdxf2Html {
static void fixLink( QDomElement & el, string const & dictId, const char *attrName )
{
QUrl url;
url.setScheme( "bres" );
url.setHost( QString::fromStdString(dictId) );
url.setPath( Qt4x5::Url::ensureLeadingSlash( el.attribute(attrName) ) );
el.setAttribute( attrName, url.toEncoded().data() );
}
// converting a number into roman representation
string convertToRoman( int input, int lower_case )
{
string romanvalue = "";
if( input >= 4000 )
{
int x = ( input - input % 4000 ) / 1000;
romanvalue = "(" + convertToRoman( x, lower_case ) + ")" ;
input %= 4000;
}
const string roman[26] = { "M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I",
"m", "cm", "d", "cd", "c", "xc", "l", "xl", "x", "ix", "v", "iv", "i"};
const int decimal[13] = {1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};
for( int i = 0; i < 13; i++ )
{
while( input >= decimal[ i ] )
{
input -= decimal[ i ];
if ( lower_case == 1 )
romanvalue += roman[ i + 13 ];
else
romanvalue += roman[ i ];
}
}
return romanvalue;
}
QDomElement fakeElement( QDomDocument & dom )
{
// Create element which will be removed after
// We will insert it to empty elements to avoid output ones in <xxx/> form
return dom.createElement( "b" );
}
string convert( string const & in, DICT_TYPE type, map < string, string > const * pAbrv,
Dictionary::Class *dictPtr, IndexedZip * resourceZip,
bool isLogicalFormat, unsigned revisionNumber, QString * headword )
{
// DPRINTF( "Source>>>>>>>>>>: %s\n\n\n", in.c_str() );
// Convert spaces after each end of line to &nbsp;s, and then each end of
// line to a <br>
string inConverted;
inConverted.reserve( in.size() );
bool afterEol = false;
for( string::const_iterator i = in.begin(), j = in.end(); i != j; ++i )
{
switch( *i )
{
case '\n':
afterEol = true;
if( !isLogicalFormat )
inConverted.append( "<br/>" );
break;
case '\r':
break;
case ' ':
if ( afterEol )
{
if( !isLogicalFormat )
inConverted.append( "&nbsp;" );
break;
}
// Fall-through
default:
inConverted.push_back( *i );
afterEol = false;
}
}
// Strip "<nu />" tags - QDomDocument don't handle it correctly
string::size_type n;
while( ( n = inConverted.find( "<nu />" ) ) != string::npos )
inConverted.erase( n, 6 );
// We build a dom representation of the given xml, then do some transforms
QDomDocument dd;
QString errorStr;
int errorLine, errorColumn;
string in_data;
if( type == XDXF )
{
in_data = "<div class=\"xdxf\"";
if( dictPtr->isToLanguageRTL() )
in_data += " dir=\"rtl\"";
in_data += ">";
}
else
in_data = "<div class=\"sdct_x\">";
in_data += inConverted + "</div>";
if( !dd.setContent( QByteArray( in_data.c_str() ), false, &errorStr, &errorLine, &errorColumn ) )
{
qWarning( "Xdxf2html error, xml parse failed: %s at %d,%d\n", errorStr.toLocal8Bit().constData(), errorLine, errorColumn );
gdWarning( "The input was: %s\n", in.c_str() );
return in;
}
QDomNodeList nodes = dd.elementsByTagName( "ex" ); // Example
while( nodes.size() )
{
QString author, source;
QDomElement el = nodes.at( 0 ).toElement();
author = el.attribute( "author", QString() );
source = el.attribute( "source", QString() );
if( el.hasChildNodes() )
{
QDomNodeList lst = el.childNodes();
for( int i = 0; i < lst.count(); ++i )
{
QDomElement el2 = el.childNodes().at( i ).toElement();
if( el2.tagName().compare( "ex_orig", Qt::CaseInsensitive ) == 0 )
{
el2.setTagName( "span" );
el2.setAttribute( "class", "xdxf_ex_orig" );
}
else if( el2.tagName().compare( "ex_tran", Qt::CaseInsensitive ) == 0 )
{
el2.setTagName( "span" );
el2.setAttribute( "class", "xdxf_ex_tran" );
}
}
}
if( ( !author.isEmpty() || !source.isEmpty() )
&& ( !el.text().isEmpty() || !el.childNodes().isEmpty() ) )
{
QDomElement el2 = dd.createElement( "span" );
el2.setAttribute( "class", "xdxf_ex_source" );
QString text = author;
if( !source.isEmpty() )
{
if( !text.isEmpty() )
text += ", ";
text += source;
}
QDomText txtNode = dd.createTextNode( text );
el2.appendChild( txtNode );
el.appendChild( el2 );
}
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
if( isLogicalFormat )
el.setAttribute( "class", "xdxf_ex" );
else
el.setAttribute( "class", "xdxf_ex_old" );
}
nodes = dd.elementsByTagName( "mrkd" ); // marked out words in translations/examples of usage
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
el.setAttribute( "class", "xdxf_ex_markd" );
}
nodes = dd.elementsByTagName( "k" ); // Key
if( headword )
headword->clear();
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
if( type == STARDICT )
{
el.setTagName( "span" );
el.setAttribute( "class", "xdxf_k" );
}
else
{
if( headword && headword->isEmpty() )
*headword = el.text();
el.setTagName( "div" );
el.setAttribute( "class", "xdxf_headwords" );
if( dictPtr->isFromLanguageRTL() != dictPtr->isToLanguageRTL() )
el.setAttribute( "dir", dictPtr->isFromLanguageRTL() ? "rtl" : "ltr" );
}
}
// processing of nested <def>s
if( isLogicalFormat ) // in articles with visual format <def> tags do not effect the formatting.
{
nodes = dd.elementsByTagName( "def" );
// this is a logical type of XDXF, so we need to render proper numbering
// we will do it this way:
// 1. we compute the maximum nesting depth of the article
int maxNestingDepth = 1; // maximum nesting depth of the article
for( int i = 0; i < nodes.size(); i++ )
{
QDomElement el = nodes.at( i ).toElement();
QDomElement nestingNode = el;
int nestingCount = 0;
while ( nestingNode.parentNode().toElement().tagName() == "def" )
{
nestingCount++;
nestingNode = nestingNode.parentNode().toElement();
}
if ( nestingCount > maxNestingDepth )
maxNestingDepth = nestingCount;
}
// 2. in this loop we go layer-by-layer through all <def> and insert proper numbers according to its structure
for( int j = maxNestingDepth; j > 0; j-- ) // j symbolizes special depth to be processed at this iteration
{
int siblingCount = 0; // this that counts the number of among all siblings of this depth
QString numberText = ""; // the number to be inserted into the beginning of <def> (I,II,IV,1,2,3,a),b),c)...)
for( int i = 0; i < nodes.size(); i++ )
{
QDomElement el = nodes.at( i ).toElement();
QDomElement nestingNode = el;
// computing the depth @nestingDepth of a current node @el
int nestingDepth = 0;
while( nestingNode.parentNode().toElement().tagName() == "def" )
{
nestingDepth++;
nestingNode=nestingNode.parentNode().toElement();
}
// we process nodes on of current depth @j
// we do this in order not to break the numbering at this depth level
if (nestingDepth == j)
{
siblingCount++;
if( maxNestingDepth == 1 )
{
numberText = numberText.setNum( siblingCount ) + ". ";
}
else if( maxNestingDepth == 2 )
{
if( nestingDepth == 1 )
numberText = numberText.setNum( siblingCount ) + ". ";
if( nestingDepth == 2 )
numberText = numberText.setNum( siblingCount ) + ") ";
}
else
{
if( nestingDepth == 1 )
numberText = QString::fromStdString( convertToRoman(siblingCount,0) + ". " );
if( nestingDepth == 2 )
numberText = numberText.setNum( siblingCount ) + ". ";
if( nestingDepth == 3 )
numberText = numberText.setNum( siblingCount ) + ") ";
if( nestingDepth == 4 )
numberText = QString::fromStdString( convertToRoman(siblingCount,1) + ") " );
}
QDomElement numberNode = dd.createElement( "span" );
numberNode.setAttribute( "class", "xdxf_num" );
QDomText text_num = dd.createTextNode( numberText );
numberNode.appendChild( text_num );
el.insertBefore( numberNode, el.firstChild() );
if ( el.hasAttribute( "cmt" ) )
{
QDomElement cmtNode = dd.createElement( "span" );
cmtNode.setAttribute( "class", "xdxf_co" );
QDomText text_num = dd.createTextNode( el.attribute( "cmt" ) );
cmtNode.appendChild( text_num );
el.insertAfter( cmtNode, el.firstChild() );
}
}
else if( nestingDepth < j ) // if it goes one level up @siblingCount needs to be reset
siblingCount = 0;
}
}
// we finally change all <def> tags into 'xdxf_def' <span>s
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
el.setTagName( "span" );
el.setAttribute( "class", "xdxf_def" );
}
}
nodes = dd.elementsByTagName( "opt" ); // Optional headword part
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
el.setAttribute( "class", "xdxf_opt" );
}
nodes = dd.elementsByTagName( "kref" ); // Reference to another word
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "a" );
el.setAttribute( "href", QString( "bword:" ) + el.text() );
el.setAttribute( "class", "xdxf_kref" );
if ( el.hasAttribute( "idref" ) )
{
// todo implement support for referencing only specific parts of the article
el.setAttribute( "href", QString( "bword:" ) + el.text() + "#" + el.attribute( "idref" ));
}
if ( el.hasAttribute( "kcmt" ) )
{
QDomText kcmtText = dd.createTextNode( " " + el.attribute( "kcmt" ) );
el.parentNode().insertAfter( kcmtText, el );
}
}
nodes = dd.elementsByTagName( "iref" ); // Reference to internet site
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
QString ref = el.attribute( "href" );
if( ref.isEmpty() )
ref = el.text();
el.setAttribute( "href", ref );
el.setTagName( "a" );
}
// Abbreviations
if( revisionNumber < 29 )
nodes = dd.elementsByTagName( "abr" );
else
nodes = dd.elementsByTagName( "abbr" );
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
el.setAttribute( "class", "xdxf_abbr" );
if( type == XDXF && pAbrv != NULL )
{
string val = Utf8::encode( Folding::trimWhitespace( gd::toWString( el.text() ) ) );
// If we have such a key, display a title
map< string, string >::const_iterator i = pAbrv->find( val );
if ( i != pAbrv->end() )
{
string title;
if ( Utf8::decode( i->second ).size() < 70 )
{
// Replace all spaces with non-breakable ones, since that's how Lingvo shows tooltips
title.reserve( i->second.size() );
for( char const * c = i->second.c_str(); *c; ++c )
{
if ( *c == ' ' || *c == '\t' )
{
// u00A0 in utf8
title.push_back( 0xC2 );
title.push_back( 0xA0 );
}
else
if( *c == '-' ) // Change minus to non-breaking hyphen (uE28091 in utf8)
{
title.push_back( 0xE2 );
title.push_back( 0x80 );
title.push_back( 0x91 );
}
else
title.push_back( *c );
}
}
else
title = i->second;
el.setAttribute( "title", gd::toQString( Utf8::decode( title ) ) );
}
}
}
nodes = dd.elementsByTagName( "dtrn" ); // Direct translation
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
el.setAttribute( "class", "xdxf_dtrn" );
}
nodes = dd.elementsByTagName( "c" ); // Color
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
if ( el.hasAttribute( "c" ) )
{
el.setAttribute( "style", "color:" + el.attribute( "c" ) );
el.removeAttribute( "c" );
}
else
el.setAttribute( "style", "color:blue" );
}
nodes = dd.elementsByTagName( "co" ); // Editorial comment
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
if( isLogicalFormat )
el.setAttribute( "class", "xdxf_co" );
else
el.setAttribute( "class", "xdxf_co_old" );
}
/* grammar information */
nodes = dd.elementsByTagName( "gr" ); // proper grammar tag
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
if( isLogicalFormat )
el.setAttribute( "class", "xdxf_gr" );
else
el.setAttribute( "class", "xdxf_gr_old" );
}
nodes = dd.elementsByTagName( "pos" ); // deprecated grammar tag
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
if( isLogicalFormat )
el.setAttribute( "class", "xdxf_gr" );
else
el.setAttribute( "class", "xdxf_gr_old" );
}
nodes = dd.elementsByTagName( "tense" ); // deprecated grammar tag
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
if( isLogicalFormat )
el.setAttribute( "class", "xdxf_gr" );
else
el.setAttribute( "class", "xdxf_gr_old" );
}
/* end of grammar generation */
nodes = dd.elementsByTagName( "tr" ); // Transcription
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
el.setTagName( "span" );
if( isLogicalFormat )
el.setAttribute( "class", "xdxf_tr" );
else
el.setAttribute( "class", "xdxf_tr_old" );
}
// Ensure that ArticleNetworkAccessManager can deal with XDXF images.
// We modify the URL by using the dictionary ID as the hostname.
// This is necessary to determine from which dictionary a requested
// image originates.
nodes = dd.elementsByTagName( "img" );
for( int i = 0; i < nodes.size(); i++ )
{
QDomElement el = nodes.at( i ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
if ( el.hasAttribute( "src" ) )
{
fixLink( el, dictPtr->getId(), "src" );
}
if ( el.hasAttribute( "losrc" ) )
{
fixLink( el, dictPtr->getId(), "losrc" );
}
if ( el.hasAttribute( "hisrc" ) )
{
fixLink( el, dictPtr->getId(), "hisrc" );
}
}
nodes = dd.elementsByTagName( "rref" ); // Resource reference
while( nodes.size() )
{
QDomElement el = nodes.at( 0 ).toElement();
if( el.text().isEmpty() && el.childNodes().isEmpty() )
el.appendChild( fakeElement( dd ) );
// if( type == XDXF && dictPtr != NULL && !el.hasAttribute( "start" ) )
if( dictPtr != NULL && !el.hasAttribute( "start" ) )
{
string filename = Utf8::encode( gd::toWString( el.text() ) );
if ( Filetype::isNameOfPicture( filename ) )
{
QUrl url;
url.setScheme( "bres" );
url.setHost( QString::fromUtf8( dictPtr->getId().c_str() ) );
url.setPath( Qt4x5::Url::ensureLeadingSlash( QString::fromUtf8( filename.c_str() ) ) );
QDomElement newEl = dd.createElement( "img" );
newEl.setAttribute( "src", url.toEncoded().data() );
newEl.setAttribute( "alt", Html::escape( filename ).c_str() );
QDomNode parent = el.parentNode();
if( !parent.isNull() )
{
parent.replaceChild( newEl, el );
continue;
}
}
else if( Filetype::isNameOfSound( filename ) )
{
QDomElement el_script = dd.createElement( "script" );
QDomNode parent = el.parentNode();
if( !parent.isNull() )
{
bool search = false;
if( type == STARDICT )
{
string n = FsEncoding::dirname( dictPtr->getDictionaryFilenames()[ 0 ] ) +
FsEncoding::separator() + string( "res" ) + FsEncoding::separator() +
FsEncoding::encode( filename );
search = !File::exists( n ) &&
( !resourceZip ||
!resourceZip->isOpen() ||
!resourceZip->hasFile( Utf8::decode( filename ) ) );
}
else
{
string n = dictPtr->getDictionaryFilenames()[ 0 ] + ".files" +
FsEncoding::separator() +
FsEncoding::encode( filename );
search = !File::exists( n ) && !File::exists( FsEncoding::dirname( dictPtr->getDictionaryFilenames()[ 0 ] ) +
FsEncoding::separator() +
FsEncoding::encode( filename ) ) &&
( !resourceZip ||
!resourceZip->isOpen() ||
!resourceZip->hasFile( Utf8::decode( filename ) ) );
}
QUrl url;
url.setScheme( "gdau" );
url.setHost( QString::fromUtf8( search ? "search" : dictPtr->getId().c_str() ) );
url.setPath( Qt4x5::Url::ensureLeadingSlash( QString::fromUtf8( filename.c_str() ) ) );
el_script.setAttribute( "type", "text/javascript" );
parent.replaceChild( el_script, el );
QDomText el_txt = dd.createTextNode( makeAudioLinkScript( string( "\"" ) + url.toEncoded().data() + "\"",
dictPtr->getId() ).c_str() );
el_script.appendChild( el_txt );
QDomElement el_span = dd.createElement( "span" );
el_span.setAttribute( "class", "xdxf_wav" );
parent.insertAfter( el_span, el_script );
QDomElement el_a = dd.createElement( "a" );
el_a.setAttribute( "href", url.toEncoded().data() );
el_span.appendChild( el_a );
QDomElement el_img = dd.createElement( "img");
el_img.setAttribute( "src", "qrcx://localhost/icons/playsound.png" );
el_img.setAttribute( "border", "0" );
el_img.setAttribute( "align", "absmiddle" );
el_img.setAttribute( "alt", "Play" );
el_a.appendChild( el_img );
continue;
}
}
}
// We don't really know how to handle this at the moment, so we'll just
// convert it to a span and leave it as is for now.
el.setTagName( "span" );
el.setAttribute( "class", "xdxf_rref" );
}
// GD_DPRINTF( "Result>>>>>>>>>>: %s\n\n\n", dd.toByteArray( 0 ).data() );
#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
return dd.toString( 1 ).remove('\n').remove( QRegularExpression( "<(b|i)/>" ) ).toUtf8().data();
#else
return dd.toString( 1 ).remove('\n').remove( QRegExp( "<(b|i)/>" ) ).toUtf8().data();
#endif
}
}
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