Function xmlNodeGetContent

ThirdParty/libxml2/vtklibxml2/tree.c:5657–5718

* xmlNodeGetContent: * @cur: the node being read * * Read the value of a node, this can be either the text carried * directly by this node if it's a TEXT node or the aggregate string * of the values carried by this node child's (TEXT and ENTITY_REF). * Entity references are substituted. * Returns a new #xmlChar * or NULL if no content is available. * It's up to the caller to free the

 *     It's up to the caller to free the memory with xmlFree().
 */
xmlChar *
xmlNodeGetContent(const xmlNode *cur)
{
    xmlBufPtr buf;
    xmlChar *ret;

    if (cur == NULL)
        return (NULL);

    switch (cur->type) {
        case XML_DOCUMENT_NODE:
        case XML_HTML_DOCUMENT_NODE:
        case XML_ENTITY_REF_NODE:
            break;

        case XML_DOCUMENT_FRAG_NODE:
        case XML_ELEMENT_NODE:
        case XML_ATTRIBUTE_NODE:
        case XML_ENTITY_DECL: {
            xmlNodePtr children = cur->children;

            if (children == NULL)
                return(xmlStrdup(BAD_CAST ""));

            /* Optimization for single text children */
            if (((children->type == XML_TEXT_NODE) ||
                 (children->type == XML_CDATA_SECTION_NODE)) &&
                (children->next == NULL)) {
                if (children->content == NULL)
                    return(xmlStrdup(BAD_CAST ""));
                return(xmlStrdup(children->content));
            }

            break;
        }

        case XML_CDATA_SECTION_NODE:
        case XML_TEXT_NODE:
        case XML_COMMENT_NODE:
        case XML_PI_NODE:
            if (cur->content != NULL)
                return(xmlStrdup(cur->content));
            else
                return(xmlStrdup(BAD_CAST ""));

        case XML_NAMESPACE_DECL:
	    return(xmlStrdup(((xmlNsPtr) cur)->href));

        default:
            return(NULL);
    }

    buf = xmlBufCreateSize(64);
    if (buf == NULL)
        return (NULL);
    xmlBufSetAllocationScheme(buf, XML_BUFFER_ALLOC_DOUBLEIT);
    xmlBufGetNodeContent(buf, cur);
    ret = xmlBufDetach(buf);