static MuContainer*
prune_empty_containers (MuContainer *root_set)
{
MuContainer *cur;
mu_container_foreach (root_set,
(MuContainerForeachFunc)prune_maybe,
NULL);
/* and prune the root_set itself... */
for (cur = root_set; cur; cur = cur->next) {
if (cur->flags & MU_CONTAINER_FLAG_DELETE)
root_set = mu_container_remove_sibling (root_set, cur);
else if (cur->flags & MU_CONTAINER_FLAG_SPLICE) {
MuContainer *newchild;
newchild = cur->child;
cur->child = NULL;
root_set = mu_container_append_siblings (root_set,
newchild);
}
}
return root_set;
}
MuContainer*
mu_container_splice_children (MuContainer *c, MuContainer *sibling)
{
MuContainer *children;
g_return_val_if_fail (c, NULL);
g_return_val_if_fail (sibling, NULL);
children = sibling->child;
sibling->child = NULL;
return mu_container_append_siblings (c, children);
}
static void
filter_root_set (const gchar *msgid, MuContainer *c, MuContainer **root_set)
{
/* ignore children */
if (c->parent)
return;
/* ignore duplicates */
if (c->flags & MU_CONTAINER_FLAG_DUP)
return;
if (*root_set == NULL) {
*root_set = c;
return;
} else
*root_set = mu_container_append_siblings (*root_set, c);
}
MuContainer*
mu_container_append_children (MuContainer *c, MuContainer *child)
{
g_return_val_if_fail (c, NULL);
g_return_val_if_fail (child, NULL);
g_return_val_if_fail (c != child, NULL);
/* assert_no_duplicates (c); */
set_parent (child, c);
if (!c->child)
c->child = child;
else
c->child = mu_container_append_siblings (c->child, child);
/* assert_no_duplicates (c->child); */
return c;
}