/**
* This allocates a property node for use in the property AVL tree. The
* note has the given name (memory is copied over) and is set dirty, but
* otherwise is a blank slate ready to be added to the AVL.
*
* Chances are, you do not want to use this method. It is exposed because
* it is used in boolexp.c and props.c
*
* @internal
* @param name String property name (memory will be copied)
* @return allocated PropPtr AVL node.
*/
PropPtr
alloc_propnode(const char *name)
{
PropPtr new_node;
size_t nlen = strlen(name);
new_node = malloc(sizeof(struct plist) + nlen);
if (!new_node) {
fprintf(stderr, "alloc_propnode(): Out of Memory!\n");
abort();
}
new_node->left = NULL;
new_node->right = NULL;
new_node->height = 1;
strcpyn(PropName(new_node), nlen + 1, name);
SetPFlagsRaw(new_node, PROP_DIRTYP);
SetPDataVal(new_node, 0);
SetPDir(new_node, NULL);
return new_node;
}
/* path is the name of the property to delete */
PropPtr
propdir_delete_elem(PropPtr root, char *path)
{
PropPtr p;
char *n;
if (!root)
return (NULL);
while (*path && *path == PROPDIR_DELIMITER)
path++;
if (!*path)
return (root);
n = index(path, PROPDIR_DELIMITER);
while (n && *n == PROPDIR_DELIMITER)
*(n++) = '\0';
if (n && *n) {
/* just another propdir in the path */
p = locate_prop(root, path);
if (p && PropDir(p)) {
/* yup, found the propdir */
SetPDir(p, propdir_delete_elem(PropDir(p), n));
if (!PropDir(p) && PropType(p) == PROP_DIRTYP) {
root = delete_prop(&root, PropName(p));
}
}
/* return the updated root pntr */
return (root);
} else {
/* aha, we are finally to the property itself. */
p = locate_prop(root, path);
if (p && PropDir(p)) {
delete_proplist(PropDir(p));
}
(void) delete_prop(&root, path);
return (root);
}
}
