Added ast.[c,h] for AST definitions and AST-manipulating functions.

1 files changed, 30 insertions, 0 deletions

diff --git a/src/ast.c b/src/ast.c
new file mode 100644
index 0000000..1622568
--- /dev/null
+++ b/src/ast.c
@@ -0,0 +1,30 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include "buffer.h"
+#include "ast.h"
+#include "inlines.h"
+#include "references.h"
+
+// Free a node_block list and any children.
+void cmark_free_nodes(node_block *e)
+{
+	node_block * next;
+	while (e != NULL) {
+		free_inlines(e->inline_content);
+		strbuf_free(&e->string_content);
+		if (e->tag == BLOCK_FENCED_CODE) {
+			strbuf_free(&e->as.code.info);
+		} else if (e->tag == BLOCK_DOCUMENT) {
+			reference_map_free(e->as.document.refmap);
+		}
+		if (e->last_child) {
+			// Splice children into list
+			e->last_child->next = e->next;
+			e->next = e->children;
+		}
+		next = e->next;
+		free(e);
+		e = next;
+	}
+}
+