X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=lib%2Fnotmuch.h;h=9fc34ef13424ade22eb539b824316f91d4e01b50;hp=373933677772234958a494eea03c8a18e0d4ae3f;hb=a7bf045fb178b5ed48e71269427cec42c21f8cd6;hpb=16aa65ba2575fd504c31d9671d8c5150f8e8adf1

diff --git a/lib/notmuch.h b/lib/notmuch.h
index 37393367..9fc34ef1 100644
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -500,14 +500,36 @@ typedef enum {
 const char *
 notmuch_query_get_query_string (notmuch_query_t *query);
 
+/* Exclude values for notmuch_query_set_omit_excluded. The strange
+ * order is to maintain backward compatibility: the old FALSE/TRUE
+ * options correspond to the new
+ * NOTMUCH_EXCLUDE_FLAG/NOTMUCH_EXCLUDE_TRUE options.
+ */
+typedef enum {
+    NOTMUCH_EXCLUDE_FLAG,
+    NOTMUCH_EXCLUDE_TRUE,
+    NOTMUCH_EXCLUDE_FALSE,
+    NOTMUCH_EXCLUDE_ALL
+} notmuch_exclude_t;
+
 /* Specify whether to omit excluded results or simply flag them.  By
  * default, this is set to TRUE.
  *
- * If this is TRUE, notmuch_query_search_messages will omit excluded
- * messages from the results.  notmuch_query_search_threads will omit
- * threads that match only in excluded messages, but will include all
- * messages in threads that match in at least one non-excluded
- * message.
+ * If set to TRUE or ALL, notmuch_query_search_messages will omit excluded
+ * messages from the results, and notmuch_query_search_threads will omit
+ * threads that match only in excluded messages.  If set to TRUE,
+ * notmuch_query_search_threads will include all messages in threads that
+ * match in at least one non-excluded message.  Otherwise, if set to ALL,
+ * notmuch_query_search_threads will omit excluded messages from all threads.
+ *
+ * If set to FALSE or FLAG then both notmuch_query_search_messages and
+ * notmuch_query_search_threads will return all matching
+ * messages/threads regardless of exclude status. If set to FLAG then
+ * the exclude flag will be set for any excluded message that is
+ * returned by notmuch_query_search_messages, and the thread counts
+ * for threads returned by notmuch_query_search_threads will be the
+ * number of non-excluded messages/matches. Otherwise, if set to
+ * FALSE, then the exclude status is completely ignored.
  *
  * The performance difference when calling
  * notmuch_query_search_messages should be relatively small (and both
@@ -516,9 +538,9 @@ notmuch_query_get_query_string (notmuch_query_t *query);
  * excluded messages as it does not need to construct the threads that
  * only match in excluded messages.
  */
-
 void
-notmuch_query_set_omit_excluded (notmuch_query_t *query, notmuch_bool_t omit_excluded);
+notmuch_query_set_omit_excluded (notmuch_query_t *query,
+				 notmuch_exclude_t omit_excluded);
 
 /* Specify the sorting desired for this query. */
 void
@@ -993,8 +1015,11 @@ notmuch_message_get_date  (notmuch_message_t *message);
 
 /* Get the value of the specified header from 'message'.
  *
- * The value will be read from the actual message file, not from the
- * notmuch database. The header name is case insensitive.
+ * Common headers are stored in the database when the message is
+ * indexed and will be returned from the database.  Other headers will
+ * be read from the actual message file.
+ *
+ * The header name is case insensitive.
  *
  * The returned string belongs to the message so should not be
  * modified or freed by the caller (nor should it be referenced after