[PATCH v2 5/7] Introduce _notmuch_message_has_term()
Daniel Kahn Gillmor
dkg at fifthhorseman.net
Sat Apr 2 07:15:39 PDT 2016
It can be useful to easily tell if a given message has a given term
associated with it.
---
lib/message.cc | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
lib/notmuch-private.h | 13 +++++++++++++
2 files changed, 62 insertions(+)
diff --git a/lib/message.cc b/lib/message.cc
index e414e9c..fab70fd 100644
--- a/lib/message.cc
+++ b/lib/message.cc
@@ -1216,6 +1216,55 @@ _notmuch_message_remove_term (notmuch_message_t *message,
return NOTMUCH_PRIVATE_STATUS_SUCCESS;
}
+notmuch_bool_t
+_notmuch_message_has_term (notmuch_message_t *message,
+ const char *prefix_name,
+ const char *value)
+{
+ notmuch_bool_t out;
+ notmuch_private_status_t st =
+ _notmuch_message_has_term_st (message, prefix_name, value, &out);
+ if (st)
+ return FALSE;
+ return out;
+}
+
+
+notmuch_private_status_t
+_notmuch_message_has_term_st (notmuch_message_t *message,
+ const char *prefix_name,
+ const char *value,
+ notmuch_bool_t *result)
+{
+ char *term;
+ notmuch_bool_t out = FALSE;
+ notmuch_private_status_t status = NOTMUCH_PRIVATE_STATUS_SUCCESS;
+
+ if (value == NULL)
+ return NOTMUCH_PRIVATE_STATUS_NULL_POINTER;
+
+ term = talloc_asprintf (message, "%s%s",
+ _find_prefix (prefix_name), value);
+
+ if (strlen (term) > NOTMUCH_TERM_MAX)
+ return NOTMUCH_PRIVATE_STATUS_TERM_TOO_LONG;
+
+ try {
+ /* Look for the exact term */
+ Xapian::TermIterator i = message->doc.termlist_begin ();
+ i.skip_to (term);
+ if (i != message->doc.termlist_end () &&
+ !strcmp ((*i).c_str (), term))
+ out = TRUE;
+ } catch (Xapian::Error &error) {
+ status = NOTMUCH_PRIVATE_STATUS_XAPIAN_EXCEPTION;
+ }
+ talloc_free (term);
+
+ *result = out;
+ return status;
+}
+
notmuch_status_t
notmuch_message_add_tag (notmuch_message_t *message, const char *tag)
{
diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h
index cbfc144..00391a9 100644
--- a/lib/notmuch-private.h
+++ b/lib/notmuch-private.h
@@ -279,6 +279,19 @@ _notmuch_message_remove_term (notmuch_message_t *message,
const char *prefix_name,
const char *value);
+/* _notmuch_message_has_term designed to be simple: if there is an
+ * error, it will return false */
+notmuch_bool_t
+_notmuch_message_has_term (notmuch_message_t *message,
+ const char *prefix_name,
+ const char *value);
+
+notmuch_private_status_t
+_notmuch_message_has_term_st (notmuch_message_t *message,
+ const char *prefix_name,
+ const char *value,
+ notmuch_bool_t *result);
+
notmuch_private_status_t
_notmuch_message_gen_terms (notmuch_message_t *message,
const char *prefix_name,
--
2.8.0.rc3
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