Added iterator interface to API, removed cmark_walk.

* Added `iterator.c`, `iterator.h`.
* Removed `cmark_walk`.
* Replaced `cmark_walk` with iterator in HTML renderer.
* Replaced API test for `cmark_walk` with simple iterator test.

1 files changed, 0 insertions, 66 deletions

diff --git a/src/node.c b/src/node.c
index 72eb619..ab3771b 100644
--- a/src/node.c
+++ b/src/node.c
@@ -766,69 +766,3 @@ cmark_node_check(cmark_node *node, FILE *out)
 
 	return errors;
 }
-
-int S_is_leaf_node(cmark_node *current_node)
-{
-	switch (cmark_node_get_type(current_node)) {
-	case CMARK_NODE_HTML:
-	case CMARK_NODE_HRULE:
-	case CMARK_NODE_CODE_BLOCK:
-	case CMARK_NODE_TEXT:
-	case CMARK_NODE_SOFTBREAK:
-	case CMARK_NODE_LINEBREAK:
-	case CMARK_NODE_INLINE_CODE:
-	case CMARK_NODE_INLINE_HTML:
-		return 1;
-	default:
-		return 0;
-	}
-}
-
-int cmark_walk(cmark_node *root, cmark_node_handler handler, void *state)
-{
-	int ev_type = CMARK_EVENT_ENTER;
-	cmark_node *current_node = root;
-	int depth = 0;
-	cmark_node *next, *parent, *first_child;
-
-	while (current_node != NULL && depth >= 0) {
-
-		next = current_node->next;
-		parent = current_node->parent;
-
-		if (!handler(current_node, ev_type, state)) {
-			return 0;
-		}
-
-		if (ev_type == CMARK_EVENT_ENTER &&
-		    !S_is_leaf_node(current_node)) {
-			first_child = current_node->first_child;
-			if (first_child == NULL) {
-				ev_type = CMARK_EVENT_EXIT; // stay on this node
-			} else {
-				depth += 1;
-				current_node = first_child;
-			}
-		} else {
-			if (current_node) {
-				next = current_node->next;
-				parent = current_node->parent;
-			}
-			if (next) {
-				// don't go past root:
-				if (current_node == root) {
-					ev_type = CMARK_EVENT_DONE;
-					return 1;
-				} else {
-					ev_type = CMARK_EVENT_ENTER;
-					current_node = next;
-				}
-			} else {
-				ev_type = CMARK_EVENT_EXIT;
-				depth -= 1;
-				current_node = parent;
-			}
-		}
-	}
-	return 1;
-}