- while (*refs) {
- while (*refs && isspace (*refs))
- refs++;
- if (*refs == '<')
- refs++;
- end = refs;
- while (*end && !isspace (*end))
- end++;
- next = end;
- end--;
- if (end > refs && *end == '>')
- end--;
- if (end > refs) {
- term = g_strndup (refs, end - refs + 1);
- add_term (doc, "ref", term);
- g_free (term);
+static char *
+find_thread_id (Xapian::Database db,
+ GPtrArray *parents,
+ const char *message_id)
+{
+ Xapian::PostingIterator child, children_end;
+ Xapian::Document doc;
+ GHashTable *thread_ids;
+ GList *keys, *l;
+ GString *result = NULL;
+ unsigned int i;
+ const char *parent_message_id;
+
+ thread_ids = g_hash_table_new (g_str_hash, g_str_equal);
+
+ find_messages_by_term (db, "ref", message_id, &child, &children_end);
+ for ( ; child != children_end; child++) {
+ doc = find_message_by_docid (db, *child);
+ insert_thread_id (thread_ids, doc);
+ }
+
+ for (i = 0; i < parents->len; i++) {
+ parent_message_id = (char *) g_ptr_array_index (parents, i);
+ doc = find_message_by_message_id (db, parent_message_id);
+ insert_thread_id (thread_ids, doc);
+ }
+
+ keys = g_hash_table_get_keys (thread_ids);
+ for (l = keys; l; l = l->next) {
+ char *id = (char *) l->data;
+ if (result == NULL) {
+ result = g_string_new (id);
+ } else {
+ g_string_append_printf (result, ",%s", id);