Function xmlXIncludeLoadDoc

ThirdParty/libxml2/vtklibxml2/xinclude.c:1304–1575

* xmlXIncludeLoadDoc: * @ctxt: the XInclude context * @url: the associated URL * @ref: an XMLXincludeRefPtr * * Load the document, and store the result in the XInclude context * * Returns 0 in case of success, -1 in case of failure */

 * Returns 0 in case of success, -1 in case of failure
 */
static int
xmlXIncludeLoadDoc(xmlXIncludeCtxtPtr ctxt, xmlXIncludeRefPtr ref) {
    xmlXIncludeDocPtr cache;
    xmlDocPtr doc;
    const xmlChar *url = ref->URI;
    const xmlChar *fragment = ref->fragment;
    int i = 0;
    int ret = -1;
    int cacheNr;
#ifdef LIBXML_XPTR_ENABLED
    int saveFlags;
#endif

    /*
     * Handling of references to the local document are done
     * directly through ctxt->doc.
     */
    if ((url[0] == 0) || (url[0] == '#') ||
	((ctxt->doc != NULL) && (xmlStrEqual(url, ctxt->doc->URL)))) {
	doc = ctxt->doc;
        goto loaded;
    }

    /*
     * Prevent reloading the document twice.
     */
    for (i = 0; i < ctxt->urlNr; i++) {
	if (xmlStrEqual(url, ctxt->urlTab[i].url)) {
            if (ctxt->urlTab[i].expanding) {
                xmlXIncludeErr(ctxt, ref->elem, XML_XINCLUDE_RECURSION,
                               "inclusion loop detected\n", NULL);
                goto error;
            }
	    doc = ctxt->urlTab[i].doc;
            if (doc == NULL)
                goto error;
	    goto loaded;
	}
    }

    /*
     * Load it.
     */
#ifdef LIBXML_XPTR_ENABLED
    /*
     * If this is an XPointer evaluation, we want to assure that
     * all entities have been resolved prior to processing the
     * referenced document
     */
    saveFlags = ctxt->parseFlags;
    if (fragment != NULL) {	/* if this is an XPointer eval */
	ctxt->parseFlags |= XML_PARSE_NOENT;
    }
#endif

    doc = xmlXIncludeParseFile(ctxt, (const char *)url);
#ifdef LIBXML_XPTR_ENABLED
    ctxt->parseFlags = saveFlags;