if (ret == EC_PARSE_NOMATCH) {
if (!is_root) {
- ec_pnode_unlink_child(pstate, child);
+ ec_pnode_unlink_child(child);
ec_pnode_free(child);
}
return ret;
fail:
if (!is_root) {
- ec_pnode_unlink_child(pstate, child);
+ ec_pnode_unlink_child(child);
ec_pnode_free(child);
}
return -1;
return __ec_parse_child(node, pstate, false, strvec);
}
-// XXX what is returned if no match ??
struct ec_pnode *ec_parse_strvec(const struct ec_node *node,
const struct ec_strvec *strvec)
{
- struct ec_pnode *parse = ec_pnode(node);
+ struct ec_pnode *pnode = ec_pnode(node);
int ret;
- if (parse == NULL)
+ if (pnode == NULL)
return NULL;
- ret = __ec_parse_child(node, parse, true, strvec);
+ ret = __ec_parse_child(node, pnode, true, strvec);
if (ret < 0) {
- ec_pnode_free(parse);
+ ec_pnode_free(pnode);
return NULL;
}
- return parse;
+ return pnode;
}
struct ec_pnode *ec_parse(const struct ec_node *node, const char *str)
{
struct ec_strvec *strvec = NULL;
- struct ec_pnode *parse = NULL;
+ struct ec_pnode *pnode = NULL;
errno = ENOMEM;
strvec = ec_strvec();
if (ec_strvec_add(strvec, str) < 0)
goto fail;
- parse = ec_parse_strvec(node, strvec);
- if (parse == NULL)
+ pnode = ec_parse_strvec(node, strvec);
+ if (pnode == NULL)
goto fail;
ec_strvec_free(strvec);
- return parse;
+ return pnode;
fail:
ec_strvec_free(strvec);
- ec_pnode_free(parse);
+ ec_pnode_free(pnode);
return NULL;
}
struct ec_pnode *ec_pnode(const struct ec_node *node)
{
- struct ec_pnode *parse = NULL;
+ struct ec_pnode *pnode = NULL;
- parse = ec_calloc(1, sizeof(*parse));
- if (parse == NULL)
+ pnode = ec_calloc(1, sizeof(*pnode));
+ if (pnode == NULL)
goto fail;
- TAILQ_INIT(&parse->children);
+ TAILQ_INIT(&pnode->children);
- parse->node = node;
- parse->attrs = ec_dict();
- if (parse->attrs == NULL)
+ pnode->node = node;
+ pnode->attrs = ec_dict();
+ if (pnode->attrs == NULL)
goto fail;
- return parse;
+ return pnode;
fail:
- if (parse != NULL)
- ec_dict_free(parse->attrs);
- ec_free(parse);
+ if (pnode != NULL)
+ ec_dict_free(pnode->attrs);
+ ec_free(pnode);
return NULL;
}
return NULL;
}
-struct ec_pnode *ec_pnode_dup(const struct ec_pnode *parse)
+struct ec_pnode *ec_pnode_dup(const struct ec_pnode *pnode)
{
const struct ec_pnode *root;
struct ec_pnode *dup_root, *dup = NULL;
- root = ec_pnode_get_root(parse);
- dup_root = __ec_pnode_dup(root, parse, &dup);
+ root = EC_PNODE_GET_ROOT(pnode);
+ dup_root = __ec_pnode_dup(root, pnode, &dup);
if (dup_root == NULL)
return NULL;
assert(dup != NULL);
return dup;
}
-void ec_pnode_free_children(struct ec_pnode *parse)
+void ec_pnode_free_children(struct ec_pnode *pnode)
{
struct ec_pnode *child;
- if (parse == NULL)
+ if (pnode == NULL)
return;
- while (!TAILQ_EMPTY(&parse->children)) {
- child = TAILQ_FIRST(&parse->children);
- TAILQ_REMOVE(&parse->children, child, next);
+ while (!TAILQ_EMPTY(&pnode->children)) {
+ child = TAILQ_FIRST(&pnode->children);
+ TAILQ_REMOVE(&pnode->children, child, next);
child->parent = NULL;
ec_pnode_free(child);
}
}
-void ec_pnode_free(struct ec_pnode *parse)
+void ec_pnode_free(struct ec_pnode *pnode)
{
- if (parse == NULL)
+ if (pnode == NULL)
return;
- ec_assert_print(parse->parent == NULL,
+ ec_assert_print(pnode->parent == NULL,
"parent not NULL in ec_pnode_free()");
- ec_pnode_free_children(parse);
- ec_strvec_free(parse->strvec);
- ec_dict_free(parse->attrs);
- ec_free(parse);
+ ec_pnode_free_children(pnode);
+ ec_strvec_free(pnode->strvec);
+ ec_dict_free(pnode->attrs);
+ ec_free(pnode);
}
static void __ec_pnode_dump(FILE *out,
- const struct ec_pnode *parse, size_t indent)
+ const struct ec_pnode *pnode, size_t indent)
{
struct ec_pnode *child;
const struct ec_strvec *vec;
const char *id = "none", *typename = "none";
/* node can be null when parsing is incomplete */
- if (parse->node != NULL) {
- id = ec_node_id(parse->node);
- typename = ec_node_type(parse->node)->name;
+ if (pnode->node != NULL) {
+ id = ec_node_id(pnode->node);
+ typename = ec_node_type(pnode->node)->name;
}
fprintf(out, "%*s" "type=%s id=%s vec=",
(int)indent * 4, "", typename, id);
- vec = ec_pnode_strvec(parse);
+ vec = ec_pnode_get_strvec(pnode);
ec_strvec_dump(out, vec);
- TAILQ_FOREACH(child, &parse->children, next)
+ TAILQ_FOREACH(child, &pnode->children, next)
__ec_pnode_dump(out, child, indent + 1);
}
-void ec_pnode_dump(FILE *out, const struct ec_pnode *parse)
+// XXX dump in other formats? yaml? json?
+void ec_pnode_dump(FILE *out, const struct ec_pnode *pnode)
{
fprintf(out, "------------------- parse dump:\n");
- if (parse == NULL) {
- fprintf(out, "parse is NULL\n");
+ if (pnode == NULL) {
+ fprintf(out, "pnode is NULL\n");
return;
}
- /* only exist if it does not match (strvec == NULL) and if it
- * does not have children: an incomplete parse, like those
- * generated by complete() don't match but have children that
- * may match. */
- if (!ec_pnode_matches(parse) && TAILQ_EMPTY(&parse->children)) {
+ /* Do not dump if it does not match (strvec == NULL) and if it
+ * does not have children. Note that an incomplete parsing tree,
+ * like those generated by complete(), don't match but have
+ * children that may match, and we want to dump them. */
+ if (!ec_pnode_matches(pnode) && TAILQ_EMPTY(&pnode->children)) {
fprintf(out, "no match\n");
return;
}
- __ec_pnode_dump(out, parse, 0);
+ __ec_pnode_dump(out, pnode, 0);
}
-void ec_pnode_link_child(struct ec_pnode *parse,
+void ec_pnode_link_child(struct ec_pnode *pnode,
struct ec_pnode *child)
{
- TAILQ_INSERT_TAIL(&parse->children, child, next);
- child->parent = parse;
+ TAILQ_INSERT_TAIL(&pnode->children, child, next);
+ child->parent = pnode;
}
-void ec_pnode_unlink_child(struct ec_pnode *parse,
- struct ec_pnode *child)
+void ec_pnode_unlink_child(struct ec_pnode *child)
{
- TAILQ_REMOVE(&parse->children, child, next);
- child->parent = NULL;
-}
+ struct ec_pnode *parent = child->parent;
-struct ec_pnode *
-ec_pnode_get_first_child(const struct ec_pnode *parse)
-{
- return TAILQ_FIRST(&parse->children);
+ if (parent != NULL) {
+ TAILQ_REMOVE(&parent->children, child, next);
+ child->parent = NULL;
+ }
}
struct ec_pnode *
-ec_pnode_get_last_child(const struct ec_pnode *parse)
+ec_pnode_get_first_child(const struct ec_pnode *pnode)
{
- return TAILQ_LAST(&parse->children, ec_pnode_list);
+ return TAILQ_FIRST(&pnode->children);
}
-struct ec_pnode *ec_pnode_next(const struct ec_pnode *parse)
+struct ec_pnode *
+ec_pnode_get_last_child(const struct ec_pnode *pnode)
{
- return TAILQ_NEXT(parse, next);
+ return TAILQ_LAST(&pnode->children, ec_pnode_list);
}
-bool ec_pnode_has_child(const struct ec_pnode *parse)
+struct ec_pnode *ec_pnode_next(const struct ec_pnode *pnode)
{
- return !TAILQ_EMPTY(&parse->children);
+ return TAILQ_NEXT(pnode, next);
}
-const struct ec_node *ec_pnode_get_node(const struct ec_pnode *parse)
+const struct ec_node *ec_pnode_get_node(const struct ec_pnode *pnode)
{
- if (parse == NULL)
+ if (pnode == NULL)
return NULL;
- return parse->node;
+ return pnode->node;
}
-void ec_pnode_del_last_child(struct ec_pnode *parse)
+void ec_pnode_del_last_child(struct ec_pnode *pnode)
{
struct ec_pnode *child;
- child = ec_pnode_get_last_child(parse);
- ec_pnode_unlink_child(parse, child);
- ec_pnode_free(child);
+ child = ec_pnode_get_last_child(pnode);
+ if (child != NULL) {
+ ec_pnode_unlink_child(child);
+ ec_pnode_free(child);
+ }
}
-struct ec_pnode *__ec_pnode_get_root(struct ec_pnode *parse)
+struct ec_pnode *ec_pnode_get_root(struct ec_pnode *pnode)
{
- if (parse == NULL)
+ if (pnode == NULL)
return NULL;
- while (parse->parent != NULL)
- parse = parse->parent;
+ while (pnode->parent != NULL)
+ pnode = pnode->parent;
- return parse;
+ return pnode;
}
-struct ec_pnode *ec_pnode_get_parent(const struct ec_pnode *parse)
+struct ec_pnode *ec_pnode_get_parent(const struct ec_pnode *pnode)
{
- if (parse == NULL)
+ if (pnode == NULL)
return NULL;
- return parse->parent;
+ return pnode->parent;
}
struct ec_pnode *__ec_pnode_iter_next(const struct ec_pnode *root,
- struct ec_pnode *parse, bool iter_children)
+ struct ec_pnode *pnode, bool iter_children)
{
struct ec_pnode *child, *parent, *next;
if (iter_children) {
- child = TAILQ_FIRST(&parse->children);
+ child = TAILQ_FIRST(&pnode->children);
if (child != NULL)
return child;
}
- parent = parse->parent;
- while (parent != NULL && parse != root) {
- next = TAILQ_NEXT(parse, next);
+ parent = pnode->parent;
+ while (parent != NULL && pnode != root) {
+ next = TAILQ_NEXT(pnode, next);
if (next != NULL)
return next;
- parse = parent;
- parent = parse->parent;
+ pnode = parent;
+ parent = pnode->parent;
}
return NULL;
}
struct ec_pnode *
-ec_pnode_find_next(struct ec_pnode *root, struct ec_pnode *start,
+ec_pnode_find_next(struct ec_pnode *root, struct ec_pnode *prev,
const char *id, bool iter_children)
{
struct ec_pnode *iter;
if (root == NULL)
return NULL;
- if (start == NULL)
- start = root;
+ if (prev == NULL)
+ prev = root;
else
- start = EC_PNODE_ITER_NEXT(root, start, iter_children);
+ prev = EC_PNODE_ITER_NEXT(root, prev, iter_children);
- for (iter = start; iter != NULL;
+ for (iter = prev; iter != NULL;
iter = EC_PNODE_ITER_NEXT(root, iter, 1)) {
if (iter->node != NULL &&
!strcmp(ec_node_id(iter->node), id))
return NULL;
}
-struct ec_pnode *ec_pnode_find(struct ec_pnode *parse,
- const char *id)
+struct ec_pnode *ec_pnode_find(struct ec_pnode *root, const char *id)
{
- return ec_pnode_find_next(parse, NULL, id, 1);
+ return ec_pnode_find_next(root, NULL, id, 1);
}
struct ec_dict *
-ec_pnode_get_attrs(struct ec_pnode *parse)
+ec_pnode_get_attrs(struct ec_pnode *pnode)
{
- if (parse == NULL)
+ if (pnode == NULL)
return NULL;
- return parse->attrs;
+ return pnode->attrs;
}
-const struct ec_strvec *ec_pnode_strvec(const struct ec_pnode *parse)
+const struct ec_strvec *ec_pnode_get_strvec(const struct ec_pnode *pnode)
{
- if (parse == NULL || parse->strvec == NULL)
+ if (pnode == NULL)
return NULL;
- return parse->strvec;
+ return pnode->strvec;
}
-/* number of strings in the parse vector */
-size_t ec_pnode_len(const struct ec_pnode *parse)
+/* number of strings in the parsed string vector */
+size_t ec_pnode_len(const struct ec_pnode *pnode)
{
- if (parse == NULL || parse->strvec == NULL)
+ if (pnode == NULL || pnode->strvec == NULL)
return 0;
- return ec_strvec_len(parse->strvec);
+ return ec_strvec_len(pnode->strvec);
}
-size_t ec_pnode_matches(const struct ec_pnode *parse)
+size_t ec_pnode_matches(const struct ec_pnode *pnode)
{
- if (parse == NULL)
+ if (pnode == NULL)
return 0;
- if (parse->strvec == NULL)
+ if (pnode->strvec == NULL)
return 0;
return 1;