substitute_ent   1498 ext/dom/document.c 	int validate, recover, resolve_externals, keep_blanks, substitute_ent;
substitute_ent   1512 ext/dom/document.c 	substitute_ent = doc_props->substituteentities;
substitute_ent   1573 ext/dom/document.c 	if (substitute_ent && ! (options & XML_PARSE_NOENT)) {