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authorzecke <zecke>2002-03-14 16:42:33 (UTC)
committer zecke <zecke>2002-03-14 16:42:33 (UTC)
commitab6f5e5cdae5eacf6e1fc2434a7d2981c71cb408 (patch) (side-by-side diff)
tree4fadeac425a9454139a973bd66b785b9ae93afb5 /libopie
parentfc9d32d34df01757eb2b8e4bcb3a9b519b72f18d (diff)
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tronicals xmltree with a replaced encodeAttr method.
before we only talk about libopie i started it
Diffstat (limited to 'libopie') (more/less context) (show whitespace changes)
-rw-r--r--libopie/xmltree.cc324
1 files changed, 324 insertions, 0 deletions
diff --git a/libopie/xmltree.cc b/libopie/xmltree.cc
new file mode 100644
index 0000000..9b8dd05
--- a/dev/null
+++ b/libopie/xmltree.cc
@@ -0,0 +1,324 @@
+/* This file is part of the KDE project
+ Copyright (C) 2001 Simon Hausmann <hausmann@kde.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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ As a special exception this program may be linked with Qt non-commercial
+ edition, the resulting executable be distributed, without including the
+ source code for the Qt non-commercial edition in the source distribution.
+
+*/
+
+
+#include "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;
+}
+
+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 << encodeAttr( 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() << "=\"" << encodeAttr( 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;
+}
+/**
+ Encode an attribute value upon saving.
+ replaces '"' with "&quot"
+ replaces '<' with "&lt"
+ replaces '&' with "&amp"
+ replaces '>' with "&gt"
+*/
+QString XMLElement::encodeAttr( const QString& str )
+{
+ QString encAttr( str ); // cause of the const parameter
+ encAttr = encAttr.replace( QRegExp( "[<]" ), "&lt" );
+ encAttr = encAttr.replace( QRegExp( "[>]" ), "&gt" );
+ encAttr = encAttr.replace( QRegExp( "[\"]" ), "&quot" );
+ encAttr = encAttr.replace( QRegExp( "[&]" ), "&amp" );
+ return encAttr;
+}
+
+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();;
+}