Hendrik Lipka / spxml

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

spcanonxml.cpp

Committer:
hlipka
Date:
2010-11-24
Revision:
0:3fa97f2c0505

File content as of revision 0:3fa97f2c0505:

/*
 * Copyright 2007 Stephen Liu
 * LGPL, see http://code.google.com/p/spxml/
 * For license terms, see the file COPYING along with this library.
 */

#include <string.h>

#include "spcanonxml.hpp"

#include "spxmlnode.hpp"
#include "spxmlutils.hpp"
#include "spxmlcodec.hpp"

SP_CanonXmlBuffer :: SP_CanonXmlBuffer( const SP_XmlNode * node )
{
    mBuffer = new SP_XmlStringBuffer();
    dump( node, mBuffer );
}

SP_CanonXmlBuffer :: ~SP_CanonXmlBuffer()
{
    if( NULL != mBuffer ) delete mBuffer;
    mBuffer = NULL;
}

const char * SP_CanonXmlBuffer :: getBuffer() const
{
    return mBuffer->getBuffer();
}

int SP_CanonXmlBuffer :: getSize() const
{
    return mBuffer->getSize();
}

void SP_CanonXmlBuffer :: canonEncode( const char * value,
        SP_XmlStringBuffer * buffer )
{
    SP_XmlStringBuffer temp;
    SP_XmlStringCodec::encode( "", value, &temp );

    for( const char * pos = temp.getBuffer(); '\0' != *pos; pos++ ) {
        if( '\r' == *pos ) {
        } else if( '\n' == *pos ) {
            buffer->append( "&#10;" );
        } else {
            buffer->append( *pos );
        }
    }
}

void SP_CanonXmlBuffer :: dump(
        const SP_XmlNode * node, SP_XmlStringBuffer * buffer )
{
    if( NULL == node ) return;

    if( SP_XmlNode::eXMLDOC == node->getType() ) {
        SP_XmlDocument * document = static_cast<SP_XmlDocument*>((SP_XmlNode*)node);
        const SP_XmlNodeList * children = document->getChildren();
        for( int j = 0; j < children->getLength(); j++ ) {
            dump( children->get( j ), buffer );
        }
    } else if( SP_XmlNode::eCDATA == node->getType() ) {
        SP_XmlCDataNode * cdata = static_cast<SP_XmlCDataNode*>((SP_XmlNode*)node);

        canonEncode( cdata->getText(), buffer );
    } else if( SP_XmlNode::ePI == node->getType() ) {
        SP_XmlPINode * piNode = static_cast<SP_XmlPINode*>((SP_XmlNode*)node);

        buffer->append( "<?" );
        buffer->append( piNode->getTarget() );
        if( '\0' != *( piNode->getTarget() ) ) buffer->append( ' ' );
        buffer->append( piNode->getData() );
        buffer->append( "?>" );
    } else if( SP_XmlNode::eCOMMENT == node->getType() ) {
        // ignore
    } else if( SP_XmlNode::eELEMENT == node->getType() ) {
        dumpElement( node, buffer );
    } else if( SP_XmlNode::eDOCDECL == node->getType() ) {
        // ignore
    } else if( SP_XmlNode::eDOCTYPE == node->getType() ) {
        // ignore
    } else {
        // ignore
    }
}

void SP_CanonXmlBuffer :: dumpElement(
        const SP_XmlNode * node, SP_XmlStringBuffer * buffer )
{
    if( NULL == node ) return;

    if( SP_XmlNode::eELEMENT == node->getType() ) {
        SP_XmlElementNode * element = static_cast<SP_XmlElementNode*>((SP_XmlNode*)node);
        buffer->append( "<" );
        buffer->append( element->getName() );

        int i = 0;

        SP_XmlArrayList attrList;
        for( i = 0; i < element->getAttrCount(); i++ ) {
            attrList.append( (void*)element->getAttr( i, NULL ) );
        }
        attrList.sort( reinterpret_cast<int(*)(const void*, const void*)>(strcmp) );

        const char * name = NULL, * value = NULL;
        for( i = 0; i < attrList.getCount(); i++ ) {
            name = (char*)attrList.getItem( i );
            value = element->getAttrValue( name );
            if( NULL != name && NULL != value ) {
                buffer->append( ' ' );
                buffer->append( name );
                buffer->append( "=\"" );
                canonEncode( value, buffer );
                buffer->append( "\"" );
            }
        }

        const SP_XmlNodeList * children = element->getChildren();

        buffer->append( ">" );

        for( int j = 0; j < children->getLength(); j++ ) {
            dump( children->get( j ), buffer );
        }

        buffer->append( "</" );
        buffer->append( element->getName() );
        buffer->append( ">" );
    } else {
        dump( node, buffer );
    }
}