Function xmlXPathNewContext

ThirdParty/libxml2/vtklibxml2/xpath.c:5096–5138

* xmlXPathNewContext: * @doc: the XML document * * Create a new xmlXPathContext * * Returns the xmlXPathContext just allocated. The caller will need to free it. */

 * Returns the xmlXPathContext just allocated. The caller will need to free it.
 */
xmlXPathContextPtr
xmlXPathNewContext(xmlDocPtr doc) {
    xmlXPathContextPtr ret;

    ret = (xmlXPathContextPtr) xmlMalloc(sizeof(xmlXPathContext));
    if (ret == NULL)
	return(NULL);
    memset(ret, 0 , sizeof(xmlXPathContext));
    ret->doc = doc;
    ret->node = NULL;

    ret->varHash = NULL;

    ret->nb_types = 0;
    ret->max_types = 0;
    ret->types = NULL;

    ret->nb_axis = 0;
    ret->max_axis = 0;
    ret->axis = NULL;

    ret->nsHash = NULL;
    ret->user = NULL;

    ret->contextSize = -1;
    ret->proximityPosition = -1;

#ifdef XP_DEFAULT_CACHE_ON
    if (xmlXPathContextSetCache(ret, 1, -1, 0) == -1) {
	xmlXPathFreeContext(ret);
	return(NULL);
    }
#endif

    xmlXPathRegisterAllFunctions(ret);

    if (ret->lastError.code != XML_ERR_OK) {
	xmlXPathFreeContext(ret);
	return(NULL);
    }

    return(ret);
}

/**
 * xmlXPathFreeContext: