diff options
Diffstat (limited to 'main/xml.c')
| -rw-r--r-- | main/xml.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/main/xml.c b/main/xml.c index bdf983e51..5ca4d4ff1 100644 --- a/main/xml.c +++ b/main/xml.c @@ -28,6 +28,7 @@ #include "asterisk.h" #include "asterisk/xml.h" #include "asterisk/logger.h" +#include "asterisk/utils.h" ASTERISK_FILE_VERSION(__FILE__, "$Revision$") @@ -35,6 +36,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$") #include <libxml/parser.h> #include <libxml/tree.h> #include <libxml/xinclude.h> +#include <libxml/xpath.h> /* libxml2 ast_xml implementation. */ @@ -316,5 +318,42 @@ struct ast_xml_node *ast_xml_node_get_parent(struct ast_xml_node *node) return (struct ast_xml_node *) ((xmlNode *) node)->parent; } +struct ast_xml_node *ast_xml_xpath_get_first_result(struct ast_xml_xpath_results *results) +{ + return (struct ast_xml_node *) ((xmlXPathObjectPtr) results)->nodesetval->nodeTab[0]; +} + +void ast_xml_xpath_results_free(struct ast_xml_xpath_results *results) +{ + xmlXPathFreeObject((xmlXPathObjectPtr) results); +} + +int ast_xml_xpath_num_results(struct ast_xml_xpath_results *results) +{ + return ((xmlXPathObjectPtr) results)->nodesetval->nodeNr; +} + +struct ast_xml_xpath_results *ast_xml_query(struct ast_xml_doc *doc, const char *xpath_str) +{ + xmlXPathContextPtr context; + xmlXPathObjectPtr result; + if (!(context = xmlXPathNewContext((xmlDoc *) doc))) { + ast_log(LOG_ERROR, "Could not create XPath context!\n"); + return NULL; + } + result = xmlXPathEvalExpression((xmlChar *) xpath_str, context); + xmlXPathFreeContext(context); + if (!result) { + ast_log(LOG_WARNING, "Error for query: %s\n", xpath_str); + return NULL; + } + if (xmlXPathNodeSetIsEmpty(result->nodesetval)) { + xmlXPathFreeObject(result); + ast_debug(5, "No results for query: %s\n", xpath_str); + return NULL; + } + return (struct ast_xml_xpath_results *) result; +} + #endif /* defined(HAVE_LIBXML2) */ |