Add:traffic:API function to parse XML data from a string

Signed-off-by: mvglasow <michael -at- vonglasow.com>

2 files changed, 39 insertions, 0 deletions

diff --git a/navit/traffic.c b/navit/traffic.c
index 82b0a9146..2dac34ed8 100644
--- a/navit/traffic.c
+++ b/navit/traffic.c
@@ -4574,6 +4574,34 @@ struct traffic_message ** traffic_get_messages_from_xml_file(struct traffic * th
     return ret;
 }
 
+struct traffic_message ** traffic_get_messages_from_xml_string(struct traffic * this_, char * xml) {
+    struct traffic_message ** ret = NULL;
+
+    struct xml_state state;
+    int i, count;
+    GList * msg_iter;
+    int read_success = 0;
+
+    if (xml) {
+        memset(&state, 0, sizeof(struct xml_state));
+        read_success = xml_parse_text(xml, &state, traffic_xml_start, traffic_xml_end, traffic_xml_text);
+        if (read_success) {
+            count = g_list_length(state.messages);
+            if (count)
+                ret = g_new0(struct traffic_message *, count + 1);
+            msg_iter = state.messages;
+            for (i = 0; i < count; i++) {
+                ret[i] = (struct traffic_message *) msg_iter->data;
+                msg_iter = g_list_next(msg_iter);
+            }
+            g_list_free(state.messages);
+        } else {
+            dbg(lvl_error,"no data supplied");
+        }
+    } /* if (xml) */
+    return ret;
+}
+
 int traffic_process_messages(struct traffic * this_, struct traffic_message ** messages) {
     return traffic_process_messages_int(this_, messages, 0);
 }
diff --git a/navit/traffic.h b/navit/traffic.h
index 8c8849620..dd8967a90 100644
--- a/navit/traffic.h
+++ b/navit/traffic.h
@@ -907,6 +907,17 @@ void traffic_init(void);
 struct traffic_message ** traffic_get_messages_from_xml_file(struct traffic * this_, char * filename);
 
 /**
+ * @brief Reads traffic messages from an XML string.
+ *
+ * @param this_ The traffic instance
+ * @param filename The XML document to parse, as a string
+ *
+ * @return A `NULL`-terminated pointer array. Each element points to one `struct traffic_message`.
+ * `NULL` is returned (rather than an empty pointer array) if there are no messages to report.
+ */
+struct traffic_message ** traffic_get_messages_from_xml_string(struct traffic * this_, char * xml);
+
+/**
  * @brief Returns the map for the traffic plugin.
  *
  * The map is created by the first traffic plugin loaded. If multiple traffic plugin instances are