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/*************************************************************************
copyright : (C) 2003-2006 by Robby Stephenson
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of version 2 of the GNU General Public License as *
* published by the Free Software Foundation; *
* *
***************************************************************************/
#include <config.h>
#include "bibtexmlexporter.h"
#include "bibtexhandler.h"
#include "../document.h"
#include "../collections/bibtexcollection.h"
#include "../latin1literal.h"
#include "../filehandler.h"
#include "tellico_xml.h"
#include "../stringset.h"
#include <klocale.h>
#include <kdebug.h>
#include <qvbox.h>
#include <qdom.h>
#include <qregexp.h>
#include <qtextcodec.h>
using Tellico::Export::BibtexmlExporter;
QString BibtexmlExporter::formatString() const {
return i18n("Bibtexml");
}
QString BibtexmlExporter::fileFilter() const {
return i18n("*.xml|Bibtexml Files (*.xml)") + QChar('\n') + i18n("*|All Files");
}
bool BibtexmlExporter::exec() {
Data::CollPtr c = collection();
if(!c || c->type() != Data::Collection::Bibtex) {
return false;
}
const Data::BibtexCollection* coll = static_cast<const Data::BibtexCollection*>(c.data());
// there are some special fields
// the entry-type specifies the entry type - book, inproceedings, whatever
QString typeField;
// the key specifies the cite-key
QString keyField;
const QString bibtex = QString::fromLatin1("bibtex");
// keep a list of all the 'ordinary' fields to iterate through later
Data::FieldVec fields;
Data::FieldVec vec = coll->fields();
for(Data::FieldVec::Iterator it = vec.begin(); it != vec.end(); ++it) {
QString bibtexField = it->property(bibtex);
if(bibtexField == Latin1Literal("entry-type")) {
typeField = it->name();
} else if(bibtexField == Latin1Literal("key")) {
keyField = it->name();
} else if(!bibtexField.isEmpty()) {
fields.append(it);
}
}
QDomImplementation impl;
QDomDocumentType doctype = impl.createDocumentType(QString::fromLatin1("file"),
QString::null,
XML::dtdBibtexml);
//default namespace
const QString& ns = XML::nsBibtexml;
QDomDocument dom = impl.createDocument(ns, QString::fromLatin1("file"), doctype);
// root element
QDomElement root = dom.documentElement();
QString encodeStr = QString::fromLatin1("version=\"1.0\" encoding=\"");
if(options() & Export::ExportUTF8) {
encodeStr += QString::fromLatin1("UTF-8");
} else {
encodeStr += QString::fromLatin1(QTextCodec::codecForLocale()->mimeName());
}
encodeStr += '"';
// createDocument creates a root node, insert the processing instruction before it
dom.insertBefore(dom.createProcessingInstruction(QString::fromLatin1("xml"), encodeStr), root);
QString comment = QString::fromLatin1("Generated by Tellico ") + QString::fromLatin1(VERSION);
dom.insertBefore(dom.createComment(comment), root);
Data::ConstFieldPtr field;
Data::FieldVec::ConstIterator fIt, end = fields.constEnd();
bool format = options() & Export::ExportFormatted;
StringSet usedKeys;
QString type, key, newKey, value, elemName, parElemName;
QDomElement btElem, entryElem, parentElem, fieldElem;
for(Data::EntryVec::ConstIterator entryIt = entries().begin(); entryIt != entries().end(); ++entryIt) {
key = entryIt->field(keyField);
if(key.isEmpty()) {
key = BibtexHandler::bibtexKey(entryIt.data());
}
QString newKey = key;
char c = 'a';
while(usedKeys.has(newKey)) {
// duplicate found!
newKey = key + c;
++c;
}
key = newKey;
usedKeys.add(key);
btElem = dom.createElement(QString::fromLatin1("entry"));
btElem.setAttribute(QString::fromLatin1("id"), key);
root.appendChild(btElem);
type = entryIt->field(typeField);
if(type.isEmpty()) {
kdWarning() << "BibtexmlExporter::exec() - the entry for '" << entryIt->title()
<< "' has no entry-type, skipping it!" << endl;
continue;
}
entryElem = dom.createElement(type);
btElem.appendChild(entryElem);
// now iterate over attributes
for(fIt = fields.constBegin(); fIt != end; ++fIt) {
field = fIt.data();
value = entryIt->field(field->name(), format);
if(value.isEmpty()) {
continue;
}
/* Bibtexml has special container elements for titles, authors, editors, and keywords
I'm going to ignore the titlelist element for right now. All authors are contained in
an authorlist element, editors in an editorlist element, and keywords are in a
keywords element, and themselves as a keyword. Also, Bibtexml can format names
similar to docbook, with first, middle, last, etc elements. I'm going to ignore that
for now, too.*/
elemName = field->property(bibtex);
// split text for author, editor, and keywords
if(elemName == Latin1Literal("author") ||
elemName == Latin1Literal("editor") ||
elemName == Latin1Literal("keywords")) {
if(elemName == Latin1Literal("author")) {
parElemName = QString::fromLatin1("authorlist");
} else if(elemName == Latin1Literal("editor")) {
parElemName = QString::fromLatin1("editorlist");
} else { // keywords
parElemName = QString::fromLatin1("keywords");
elemName = QString::fromLatin1("keyword");
}
parentElem = dom.createElement(parElemName);
const QStringList values = entryIt->fields(field->name(), false);
for(QStringList::ConstIterator it = values.begin(); it != values.end(); ++it) {
fieldElem = dom.createElement(elemName);
fieldElem.appendChild(dom.createTextNode(*it));
parentElem.appendChild(fieldElem);
}
if(parentElem.hasChildNodes()) {
entryElem.appendChild(parentElem);
}
} else {
fieldElem = dom.createElement(elemName);
fieldElem.appendChild(dom.createTextNode(value));
entryElem.appendChild(fieldElem);
}
}
}
return FileHandler::writeTextURL(url(), dom.toString(),
options() & ExportUTF8, options() & Export::ExportForce);
}
#include "bibtexmlexporter.moc"
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