Hendrik Lipka
Mbed port of the Simple Plain Xml parser. See http://code.google.com/p/spxml/ for more details. This library uses less memory and is much better suited to streaming data than TinyXML (doesn\'t use as much C++ features, and especially works without streams). See http://mbed.org/users/hlipka/notebook/xml-parsing/ for usage examples.
Dependents: spxmltest_weather VFD_fontx2_weather weather_LCD_display News_LCD_display ... more
Diff: spdomiterator.cpp
- Revision:
- 0:3fa97f2c0505
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/spdomiterator.cpp Wed Nov 24 20:52:14 2010 +0000
@@ -0,0 +1,102 @@
+/*
+ * Copyright 2007 Stephen Liu
+ * LGPL, see http://code.google.com/p/spxml/
+ * For license terms, see the file COPYING along with this library.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include "spdomiterator.hpp"
+#include "spxmlnode.hpp"
+
+SP_DomIterator :: SP_DomIterator( const SP_XmlNode * node )
+{
+ mRoot = node;
+ mCurrent = node;
+}
+
+SP_DomIterator :: ~SP_DomIterator()
+{
+}
+
+const SP_XmlNode * SP_DomIterator :: getNext()
+{
+ if( NULL == mCurrent ) return NULL;
+
+ const SP_XmlNode * retNode = mCurrent;
+
+ // find first left child
+ if( SP_XmlNode::eXMLDOC == mCurrent->getType() ) {
+ SP_XmlDocument * document = static_cast<SP_XmlDocument*>((SP_XmlNode*)mCurrent);
+
+ mCurrent = NULL;
+ retNode = document->getDocDecl();
+ if( NULL == retNode ) retNode = document->getDocType();
+ if( NULL == retNode ) {
+ retNode = document->getRootElement();
+ if( NULL != retNode ) mCurrent = document->getRootElement()->getChildren()->get( 0 );
+ }
+ } else if( SP_XmlNode::eELEMENT == mCurrent->getType() ) {
+ SP_XmlElementNode * element = static_cast<SP_XmlElementNode*>((SP_XmlNode*)mCurrent);
+ const SP_XmlNodeList * children = element->getChildren();
+ mCurrent = children->get( 0 );
+ } else {
+ mCurrent = NULL;
+ }
+
+ // find next sibling
+ if( NULL == mCurrent ) {
+ mCurrent = retNode;
+
+ const SP_XmlNode * parent = NULL;
+ if( NULL != mCurrent ) parent = mCurrent->getParent();
+
+ for( ; NULL != parent; ) {
+ if( SP_XmlNode::eXMLDOC == parent->getType() ) {
+ SP_XmlDocument * document = static_cast<SP_XmlDocument*>((SP_XmlNode*)parent);
+ if( mCurrent == document->getDocDecl() ) {
+ mCurrent = document->getDocType();
+ if( NULL == mCurrent ) mCurrent = document->getRootElement();
+ } else if( mCurrent == document->getDocType() ) {
+ mCurrent = document->getRootElement();
+ } else {
+ mCurrent = NULL;
+ }
+ } else if( SP_XmlNode::eELEMENT == parent->getType() ) {
+ SP_XmlElementNode * element = static_cast<SP_XmlElementNode*>((SP_XmlNode*)parent);
+ const SP_XmlNodeList * children = element->getChildren();
+
+ int index = -1;
+ for( int i = 0; i < children->getLength(); i++ ) {
+ if( mCurrent == children->get( i ) ) {
+ index = i;
+ break;
+ }
+ }
+
+ if( index >= 0 && index < ( children->getLength() - 1 ) ) {
+ mCurrent = children->get( index + 1 );
+ } else {
+ mCurrent = NULL;
+ }
+ } else {
+ mCurrent = NULL;
+ assert( 0 ); // should not occur
+ }
+
+ if( NULL == mCurrent ) {
+ mCurrent = parent;
+ parent = mCurrent->getParent();
+ if( NULL == parent ) mCurrent = NULL;
+ if( mRoot == mCurrent ) mCurrent = NULL;
+ } else {
+ break;
+ }
+ }
+ }
+
+ return retNode;
+}
+