gboolean
mu_msg_field_needs_prefix (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),FALSE);
return mu_msg_field(id)->_flags &
FLAG_XAPIAN_PREFIX_ONLY ? TRUE: FALSE;
}
MuMsgFieldType
mu_msg_field_type (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),
MU_MSG_FIELD_TYPE_NONE);
return mu_msg_field(id)->_type;
}
gboolean
mu_msg_field_is_cacheable (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),FALSE);
/* note the FALSE: TRUE */
return mu_msg_field(id)->_flags & FLAG_DONT_CACHE ? FALSE : TRUE;
}
gboolean
mu_msg_field_is_numeric (MuMsgFieldId mfid)
{
MuMsgFieldType type;
g_return_val_if_fail (mu_msg_field_id_is_valid(mfid),FALSE);
type = mu_msg_field_type (mfid);
return type == MU_MSG_FIELD_TYPE_BYTESIZE ||
type == MU_MSG_FIELD_TYPE_TIME_T ||
type == MU_MSG_FIELD_TYPE_INT;
}
MuContainer*
mu_container_sort (MuContainer *c, MuMsgFieldId mfid, gboolean descending,
gpointer user_data)
{
SortFuncData sfdata;
sfdata.mfid = mfid;
sfdata.descending = descending;
sfdata.user_data = user_data;
g_return_val_if_fail (c, NULL);
g_return_val_if_fail (mu_msg_field_id_is_valid(mfid), NULL);
return container_sort_real (c, &sfdata);
}
/* msg threading algorithm, based on JWZ's algorithm,
* http://www.jwz.org/doc/threading.html */
GHashTable*
mu_threader_calculate (MuMsgIter *iter, size_t matchnum,
MuMsgFieldId sortfield, gboolean descending)
{
GHashTable *id_table, *thread_ids;
MuContainer *root_set;
g_return_val_if_fail (iter, FALSE);
g_return_val_if_fail (mu_msg_field_id_is_valid (sortfield) ||
sortfield == MU_MSG_FIELD_ID_NONE,
FALSE);
/* step 1 */
id_table = create_containers (iter);
if (matchnum == 0)
return id_table; /* just return an empty table */
/* step 2 -- the root_set is the list of children without parent */
root_set = find_root_set (id_table);
/* step 3: skip until the end; we still need to containers */
/* step 4: prune empty containers */
root_set = prune_empty_containers (root_set);
/* sort root set */
if (sortfield != MU_MSG_FIELD_ID_NONE)
root_set = mu_container_sort (root_set, sortfield, descending,
NULL);
/* step 5: group root set by subject */
/* group_root_set_by_subject (root_set); */
/* sort */
mu_msg_iter_reset (iter); /* go all the way back */
/* finally, deliver the docid => thread-path hash */
thread_ids = mu_container_thread_info_hash_new (root_set,
matchnum);
g_hash_table_destroy (id_table); /* step 3*/
return thread_ids;
}
int
mu_msg_cmp (MuMsg *m1, MuMsg *m2, MuMsgFieldId mfid)
{
g_return_val_if_fail (m1, 0);
g_return_val_if_fail (m2, 0);
g_return_val_if_fail (mu_msg_field_id_is_valid(mfid), 0);
if (mfid == MU_MSG_FIELD_ID_SUBJECT)
return cmp_subject (get_str_field (m1, mfid),
get_str_field (m2, mfid));
if (mu_msg_field_is_string (mfid))
return cmp_str (get_str_field (m1, mfid),
get_str_field (m2, mfid));
/* TODO: note, we cast (potentially > MAXINT to int) */
if (mu_msg_field_is_numeric (mfid))
return get_num_field(m1, mfid) - get_num_field(m2, mfid);
return 0; /* TODO: handle lists */
}
int
mu_msg_cmp (MuMsg *m1, MuMsg *m2, MuMsgFieldId mfid)
{
g_return_val_if_fail (m1, 0);
g_return_val_if_fail (m2, 0);
g_return_val_if_fail (mu_msg_field_id_is_valid(mfid), 0);
/* even though date is a numeric field, we can sort it by its
* string repr. in the database, which is much faster */
if (mfid == MU_MSG_FIELD_ID_DATE ||
mu_msg_field_is_string (mfid))
return cmp_str (get_str_field (m1, mfid),
get_str_field (m2, mfid));
if (mfid == MU_MSG_FIELD_ID_SUBJECT)
return cmp_subject (get_str_field (m1, mfid),
get_str_field (m2, mfid));
/* TODO: note, we cast (potentially > MAXINT to int) */
if (mu_msg_field_is_numeric (mfid))
return get_num_field(m1, mfid) - get_num_field(m2, mfid);
return 0; /* TODO: handle lists */
}
gboolean
mu_msg_field_gmime (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),FALSE);
return mu_msg_field(id)->_flags & FLAG_GMIME ? TRUE: FALSE;
}
gboolean
mu_msg_field_uses_boolean_prefix (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),FALSE);
return mu_msg_field(id)->_flags & FLAG_XAPIAN_BOOLEAN?TRUE:FALSE;
}
gboolean
mu_msg_field_is_range_field (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),FALSE);
return mu_msg_field(id)->_flags & FLAG_RANGE_FIELD ? TRUE: FALSE;
}
char
mu_msg_field_shortcut (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),0);
return mu_msg_field(id)->_shortcut;
}
char
mu_msg_field_xapian_prefix (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),0);
return mu_msg_field(id)->_xprefix;
}
const char*
mu_msg_field_name (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),NULL);
return mu_msg_field(id)->_name;
}
gboolean
mu_msg_field_xapian_index (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),FALSE);
return mu_msg_field(id)->_flags & FLAG_XAPIAN_INDEX ? TRUE: FALSE;
}
gboolean
mu_msg_field_xapian_escape (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),FALSE);
return mu_msg_field(id)->_flags & FLAG_XAPIAN_ESCAPE ? TRUE: FALSE;
}
gboolean
mu_msg_field_normalize (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),FALSE);
return mu_msg_field(id)->_flags & FLAG_NORMALIZE ? TRUE: FALSE;
}
gboolean
mu_msg_field_xapian_contact (MuMsgFieldId id)
{
g_return_val_if_fail (mu_msg_field_id_is_valid(id),FALSE);
return mu_msg_field(id)->_flags & FLAG_XAPIAN_CONTACT ? TRUE: FALSE;
}
