Add _notmuch_message_get_in_reply_to.

The existing notmuch_message_get_header is *almost* good enough for
this, except that we also need to remove the '<' and '>'
delimiters. We'll probably want to implement this function with
database storage in the future rather than loading the email message.

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h
index 74edf24..c4b6639 100644
--- a/lib/notmuch-private.h
+++ b/lib/notmuch-private.h
@@ -172,6 +172,9 @@ _notmuch_message_create_for_message_id (const void *talloc_owner,
 					const char *message_id,
 					notmuch_private_status_t *status);
 
+const char *
+_notmuch_message_get_in_reply_to (notmuch_message_t *message);
+
 notmuch_private_status_t
 _notmuch_message_add_term (notmuch_message_t *message,
 			   const char *prefix_name,