Function xmlInitializeCatalog

ThirdParty/libxml2/vtklibxml2/catalog.c:3069–3120

* xmlInitializeCatalog: * * Do the catalog initialization. * this function is not thread safe, catalog initialization should * preferably be done once at startup */

 * preferably be done once at startup
 */
void
xmlInitializeCatalog(void) {
    if (xmlCatalogInitialized != 0)
	return;

    xmlInitializeCatalogData();
    xmlRMutexLock(xmlCatalogMutex);

    if (getenv("XML_DEBUG_CATALOG"))
	xmlDebugCatalogs = 1;

    if (xmlDefaultCatalog == NULL) {
	const char *catalogs;
	char *path;
	const char *cur, *paths;
	xmlCatalogPtr catal;
	xmlCatalogEntryPtr *nextent;

	catalogs = (const char *) getenv("XML_CATALOG_FILES");
	if (catalogs == NULL)
	    catalogs = XML_XML_DEFAULT_CATALOG;

	catal = xmlCreateNewCatalog(XML_XML_CATALOG_TYPE,
		xmlCatalogDefaultPrefer);
	if (catal != NULL) {
	    /* the XML_CATALOG_FILES envvar is allowed to contain a
	       space-separated list of entries. */
	    cur = catalogs;
	    nextent = &catal->xml;
	    while (*cur != '\0') {
		while (xmlIsBlank_ch(*cur))
		    cur++;
		if (*cur != 0) {
		    paths = cur;
		    while ((*cur != 0) && (!xmlIsBlank_ch(*cur)))
			cur++;
		    path = (char *) xmlStrndup((const xmlChar *)paths, cur - paths);
		    if (path != NULL) {
			*nextent = xmlNewCatalogEntry(XML_CATA_CATALOG, NULL,
				NULL, BAD_CAST path, xmlCatalogDefaultPrefer, NULL);
			if (*nextent != NULL)
			    nextent = &((*nextent)->next);
			xmlFree(path);
		    }
		}
	    }
	    xmlDefaultCatalog = catal;
	}
    }

    xmlRMutexUnlock(xmlCatalogMutex);
}


/**