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tdevelop/lib/util/domutil.cpp

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/***************************************************************************
* Copyright (C) 2001-2002 by Bernd Gehrmann *
* bernd@kdevelop.org *
* default support: Eray Ozkural (exa) *
* additions: John Firebaugh <jfirebaugh@kde.org> *
* Jakob Simon-Gaarde <jakob@simon-gaarde.dk> *
* *
* 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. *
* *
***************************************************************************/
#include "domutil.h"
#include <kdebug.h>
#include <tqstringlist.h>
#include <tqfile.h>
void DomUtil::makeEmpty( TQDomElement& e )
{
while( !e.firstChild().isNull() )
e.removeChild( e.firstChild() );
}
TQDomElement DomUtil::elementByPath(const TQDomDocument &doc, const TQString &path)
{
TQStringList l = TQStringList::split('/', path);
TQDomElement el;
if(&doc) el = doc.documentElement();
TQStringList::ConstIterator it;
for (it = l.begin(); it != l.end(); ++it) {
el = el.namedItem(*it).toElement();
}
return el;
}
TQString DomUtil::readEntry(const TQDomDocument &doc, const TQString &path, const TQString &defaultEntry)
{
TQDomElement el = elementByPath(doc, path);
if (el.isNull())
return defaultEntry;
else
return el.firstChild().toText().data();
}
/// @todo consider whether it's okay to accept empty string == default value
/// if not use the below type
///typedef pair<bool,TQString> EltInfo;
TQString DomUtil::readEntryAux(const TQDomDocument &doc, const TQString &path)
{
TQDomElement el = elementByPath(doc, path);
if (el.isNull())
return TQString();
else
return el.firstChild().toText().data();
}
int DomUtil::readIntEntry(const TQDomDocument &doc, const TQString &path, int defaultEntry)
{
TQString entry = readEntryAux(doc, path);
if (entry.isNull())
return defaultEntry;
else
return entry.toInt();
}
bool DomUtil::readBoolEntry(const TQDomDocument &doc, const TQString &path, bool defaultEntry)
{
TQString entry = readEntryAux(doc, path);
if (entry.isNull())
return defaultEntry;
else
return entry == "TRUE" || entry == "true";
}
TQStringList DomUtil::readListEntry(const TQDomDocument &doc, const TQString &path, const TQString &tag)
{
TQStringList list;
TQDomElement el = elementByPath(doc, path);
TQDomElement subEl = el.firstChild().toElement();
while (!subEl.isNull()) {
if (subEl.tagName() == tag)
list << subEl.firstChild().toText().data();
subEl = subEl.nextSibling().toElement();
}
return list;
}
DomUtil::PairList DomUtil::readPairListEntry(const TQDomDocument &doc, const TQString &path, const TQString &tag,
const TQString &firstAttr, const TQString &secondAttr)
{
PairList list;
TQDomElement el = elementByPath(doc, path);
TQDomElement subEl = el.firstChild().toElement();
while (!subEl.isNull()) {
if (subEl.tagName() == tag) {
TQString first = subEl.attribute(firstAttr);
TQString second = subEl.attribute(secondAttr);
list << Pair(first, second);
}
subEl = subEl.nextSibling().toElement();
}
return list;
}
TQMap<TQString, TQString> DomUtil::readMapEntry(const TQDomDocument &doc, const TQString& path)
{
TQMap<TQString, TQString> map;
TQDomElement el = elementByPath(doc, path);
TQDomElement subEl = el.firstChild().toElement();
while (!subEl.isNull()) {
map[subEl.tagName()] = subEl.firstChild().toText().data();
subEl = subEl.nextSibling().toElement();
}
return map;
}
TQDomElement DomUtil::namedChildElement( TQDomElement& el, const TQString& name )
{
TQDomElement child = el.namedItem( name ).toElement();
if (child.isNull()) {
child = el.ownerDocument().createElement( name );
el.appendChild(child);
}
return child;
}
TQDomElement DomUtil::createElementByPath(TQDomDocument &doc, const TQString &path)
{
TQStringList l = TQStringList::split('/', path);
TQDomElement el;
if(&doc) el = doc.documentElement();
TQStringList::ConstIterator it;
for (it = l.begin(); it != l.end(); ++it)
el = DomUtil::namedChildElement( el, *it );
while (!el.firstChild().isNull())
el.removeChild(el.firstChild());
return el;
}
void DomUtil::writeEntry(TQDomDocument &doc, const TQString &path, const TQString &value)
{
TQDomElement el = createElementByPath(doc, path);
el.appendChild(doc.createTextNode(value));
}
void DomUtil::writeMapEntry(TQDomDocument &doc, const TQString &path, const TQMap<TQString, TQString> &map)
{
TQString basePath( path + "/" );
TQMap<TQString,TQString>::ConstIterator it;
for (it = map.begin(); it != map.end(); ++it)
{
kdDebug( 9010 ) << "writing " << basePath << ";" << it.key() << ";" << it.data() << endl;
if( ! it.key().isEmpty() )
writeEntry(doc, basePath + it.key(), it.data() );
}
}
void DomUtil::writeIntEntry(TQDomDocument &doc, const TQString &path, int value)
{
writeEntry(doc, path, TQString::number(value));
}
void DomUtil::writeBoolEntry(TQDomDocument &doc, const TQString &path, bool value)
{
writeEntry(doc, path, value? "true" : "false");
}
void DomUtil::writeListEntry(TQDomDocument &doc, const TQString &path, const TQString &tag,
const TQStringList &value)
{
TQDomElement el = createElementByPath(doc, path);
TQStringList::ConstIterator it;
for (it = value.begin(); it != value.end(); ++it) {
TQDomElement subEl = doc.createElement(tag);
subEl.appendChild(doc.createTextNode(*it));
el.appendChild(subEl);
}
}
void DomUtil::writePairListEntry(TQDomDocument &doc, const TQString &path, const TQString &tag,
const TQString &firstAttr, const TQString &secondAttr,
const PairList &value)
{
TQDomElement el = createElementByPath(doc, path);
PairList::ConstIterator it;
for (it = value.begin(); it != value.end(); ++it) {
TQDomElement subEl = doc.createElement(tag);
subEl.setAttribute(firstAttr, (*it).first);
subEl.setAttribute(secondAttr, (*it).second);
el.appendChild(subEl);
}
}
DomPath DomUtil::resolvPathStringExt(const TQString pathstring)
{
// parse path
unsigned int i;
TQStringList pathParts = TQStringList::split('/',pathstring);
DomPath dompath;
for (i=0; i<pathParts.count(); i++)
{
TQStringList pathElemParts = TQStringList::split('|',pathParts[i],TRUE);
DomPathElement dompathelem;
dompathelem.tagName = pathElemParts[0].simplifyWhiteSpace();
if (pathElemParts.count()>1)
{
// handle attributes
TQStringList attrParts = TQStringList::split(';',pathElemParts[1]);
for (unsigned int j=0; j<attrParts.count(); j++)
{
TQStringList attribSet = TQStringList::split('=',attrParts[j]);
if (attribSet.count()<2)
continue;
DomAttribute domattribute;
domattribute.name = attribSet[0].simplifyWhiteSpace();
domattribute.value = attribSet[1].simplifyWhiteSpace();
dompathelem.attribute.append(domattribute);
}
}
if (pathElemParts.count()>2)
dompathelem.matchNumber = pathElemParts[2].toInt();
else
dompathelem.matchNumber = 0; // or else the first
dompath.append(dompathelem);
}
return dompath;
}
#define rightchild !wrongchild
TQDomElement DomUtil::elementByPathExt(TQDomDocument &doc, const TQString &pathstring)
{
DomPath dompath = resolvPathStringExt(pathstring);
TQDomElement elem = doc.documentElement();
TQDomNodeList children;
TQDomElement nextElem = elem;
for (unsigned int j=0; j<dompath.count(); j++)
{
children = nextElem.childNodes();
DomPathElement dompathelement= dompath[j];
bool wrongchild = false;
int matchCount = 0;
for (unsigned int i=0; i<children.count(); i++)
{
wrongchild = false;
TQDomElement child = children.item(i).toElement();
TQString tag = child.tagName();
tag = dompathelement.tagName;
if (child.tagName() == dompathelement.tagName)
{
for (unsigned int k=0; k<dompathelement.attribute.count(); k++)
{
DomAttribute domattribute = dompathelement.attribute[k];
TQDomAttr domattr = child.attributeNode(domattribute.name);
if (domattr.isNull() ||
domattr.value() != domattribute.value)
{
wrongchild = true;
break;
}
}
}
else
wrongchild=true;
if (rightchild)
{
if (dompathelement.matchNumber == matchCount++)
{
nextElem = child;
break;
}
}
}
if (wrongchild)
{
TQDomElement nullDummy;
nullDummy.clear();
return nullDummy;
}
}
return nextElem;
}
bool DomUtil::openDOMFile(TQDomDocument &doc, TQString filename)
{
TQFile file( filename );
if ( !file.open( IO_ReadOnly ) )
return false;
if ( !doc.setContent( &file ) ) {
file.close();
return false;
}
file.close();
return true;
}
bool DomUtil::saveDOMFile(TQDomDocument &doc, TQString filename)
{
TQFile file( filename );
if ( !file.open( IO_ReadWrite | IO_Truncate ) )
return false;
TQTextStream t( &file );
t << doc.toString();
file.close();
return true;
}
bool DomUtil::removeTextNodes(TQDomDocument doc,TQString pathExt)
{
TQDomElement elem = elementByPathExt(doc,pathExt);
if (elem.isNull())
return false;
TQDomNodeList children = elem.childNodes();
for (unsigned int i=0;i<children.count();i++)
if (children.item(i).isText())
elem.removeChild(children.item(i));
return true;
}
bool DomUtil::appendText(TQDomDocument doc, TQString pathExt, TQString text)
{
TQDomElement elem = elementByPathExt(doc,pathExt);
if (elem.isNull())
return false;
elem.appendChild(doc.createTextNode(text));
return true;
}
bool DomUtil::replaceText(TQDomDocument doc, TQString pathExt, TQString text)
{
if (removeTextNodes(doc,pathExt) &&
appendText(doc,pathExt,text))
return true;
else
return false;
}