/* This file is part of the KDE project Copyright (C) 2001 Simon Hausmann <hausmann@kde.org> This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <qpe/stringutil.h> #include <opie/xmltree.h> #include <qxml.h> #include <assert.h> XMLElement::XMLElement() : m_parent( 0 ), m_next( 0 ), m_prev( 0 ), m_first( 0 ), m_last( 0 ) { } XMLElement::~XMLElement() { XMLElement *n = m_first; while ( n ) { XMLElement *tmp = n; n = n->m_next; delete tmp; } } void XMLElement::appendChild( XMLElement *child ) { if ( child->m_parent ) child->m_parent->removeChild( child ); child->m_parent = this; if ( m_last ) m_last->m_next = child; child->m_prev = m_last; if ( !m_first ) m_first = child; m_last = child; } void XMLElement::insertAfter( XMLElement *newChild, XMLElement *refChild ) { assert( newChild != refChild ); if ( refChild == m_last ) { appendChild( newChild ); return; } assert( refChild ); assert( refChild->m_parent ); assert( refChild->m_parent == this ); if ( newChild->m_parent && newChild != refChild ) newChild->m_parent->removeChild( newChild ); newChild->m_parent = this; XMLElement *next = refChild->m_next; refChild->m_next = newChild; newChild->m_prev = refChild; newChild->m_next = next; if ( next ) next->m_prev = newChild; } QString XMLElement::attribute( const QString &attr ) const { AttributeMap::ConstIterator it = m_attributes.find( attr ); if ( it == m_attributes.end() ) return QString::null; return it.data(); } void XMLElement::setAttribute( const QString &attr, const QString &value ) { m_attributes.replace( attr, value ); } void XMLElement::insertBefore( XMLElement *newChild, XMLElement *refChild ) { assert( refChild ); assert( refChild->m_parent ); assert( refChild->m_parent == this ); assert( newChild != refChild ); if ( newChild->m_parent && newChild != refChild ) newChild->m_parent->removeChild( newChild ); newChild->m_parent = this; XMLElement *prev = refChild->m_prev; refChild->m_prev = newChild; newChild->m_prev = prev; newChild->m_next = refChild; if ( prev ) prev->m_next = newChild; if ( refChild == m_first ) m_first = newChild; } void XMLElement::removeChild( XMLElement *child ) { if ( child->m_parent != this ) return; if ( m_first == child ) m_first = child->m_next; if ( m_last == child ) m_last = child->m_prev; if ( child->m_prev ) child->m_prev->m_next = child->m_next; if ( child->m_next ) child->m_next->m_prev = child->m_prev; child->m_parent = 0; child->m_prev = 0; child->m_next = 0; } void XMLElement::save( QTextStream &s, uint indent ) { if ( !m_value.isEmpty() ) { s << Qtopia::escapeString( m_value ); return; } for ( uint i = 0; i < indent; ++i ) s << " "; s << "<" << m_tag; if ( !m_attributes.isEmpty() ) { s << " "; AttributeMap::ConstIterator it = m_attributes.begin(); AttributeMap::ConstIterator end = m_attributes.end(); for (; it != end; ++it ) { s << it.key() << "=\"" << Qtopia::escapeString( it.data() ) << "\""; s << " "; } } if ( m_last ) { if ( ( m_first && !m_first->value().isEmpty() ) || !m_parent ) s << ">"; else s << ">" << endl; int newIndent = indent; if ( m_parent ) newIndent++; XMLElement *n = m_first; while ( n ) { n->save( s, newIndent ); n = n->nextChild(); } if ( m_last && m_last->value().isEmpty() && m_parent ) for ( uint i = 0; i < indent; ++i ) s << " "; if ( m_parent ) s << "</" << m_tag << ">" << endl; } else s << "/>" << endl; } class Handler : public QXmlDefaultHandler { public: Handler() : m_node( 0 ), m_root( 0 ) {} XMLElement *root() const { return m_root; } virtual bool startDocument(); virtual bool endDocument(); virtual bool startElement( const QString &ns, const QString &ln, const QString &qName, const QXmlAttributes &attr ); virtual bool endElement( const QString &ns, const QString &ln, const QString &qName ); virtual bool characters( const QString &ch ); private: XMLElement *m_node; XMLElement *m_root; }; bool Handler::startDocument() { m_root = m_node = new XMLElement; return true; } bool Handler::endDocument() { return m_root == m_node; } bool Handler::startElement( const QString &, const QString &, const QString &qName, const QXmlAttributes &attr ) { XMLElement *bm = new XMLElement; XMLElement::AttributeMap attributes; for ( int i = 0; i < attr.length(); ++i ) attributes[ attr.qName( i ) ] = attr.value( i ); bm->setAttributes( attributes ); bm->setTagName( qName ); m_node->appendChild( bm ); m_node = bm; return true; } bool Handler::endElement( const QString &, const QString &, const QString & ) { if ( m_node == m_root ) return false; m_node = m_node->parent(); return true; } bool Handler::characters( const QString &ch ) { XMLElement *textNode = new XMLElement; textNode->setValue( ch ); m_node->appendChild( textNode ); return true; } XMLElement *XMLElement::namedItem( const QString &name ) { XMLElement *e = m_first; for (; e; e = e->nextChild() ) if ( e->tagName() == name ) return e; return 0; } XMLElement *XMLElement::clone() const { XMLElement *res = new XMLElement; res->setTagName( m_tag ); res->setValue( m_value ); res->setAttributes( m_attributes ); XMLElement *e = m_first; for (; e; e = e->m_next ) res->appendChild( e->clone() ); return res; } XMLElement *XMLElement::load( const QString &fileName ) { QFile f( fileName ); if ( !f.open( IO_ReadOnly ) ) return 0; QTextStream stream( &f ); stream.setEncoding( QTextStream::UnicodeUTF8 ); QXmlInputSource src( stream ); QXmlSimpleReader reader; Handler handler; reader.setFeature( "http://trolltech.com/xml/features/report-whitespace-only-CharData", false ); reader.setContentHandler( &handler ); reader.parse( src ); return handler.root();; } /* vim: et sw=4 */