Defined basic DOM operations.

1 files changed, 69 insertions, 0 deletions

diff --git a/wv_dom.h b/wv_dom.h
new file mode 100644
index 0000000..9a2c281
--- /dev/null
+++ b/wv_dom.h
@@ -0,0 +1,69 @@
+#ifndef WV_DOM_H
+#define WV_DOM_H
+
+#include "wv_mem.h"
+
+typedef enum {
+	WV_TAG_UNKNOWN = 0,
+	WV_TAG_DOCUMENT,
+	WV_TAG_HTML,
+	WV_TAG_HEAD,
+	WV_TAG_META,
+	WV_TAG_TITLE,
+	WV_TAG_LINK,
+	WV_TAG_BODY,
+	WV_TAG_HEADER,
+	WV_TAG_H1,
+	WV_TAG_A,
+	WV_TAG_ARTICLE,
+	WV_TAG_UL,
+	WV_TAG_LI,
+	WV_TAG_TIME,
+	WV_TAG_FOOTER,
+	WV_TAG_P
+} wv_tag_id;
+
+typedef enum {
+	WV_NODE_DOCUMENT,
+	WV_NODE_ELEMENT,
+	WV_NODE_TEXT
+} wv_node_type;
+
+struct wv_attr {
+	wv_ref key;   /* E.g., "href" */
+	wv_ref val;   /* E.g., "/log/vcs-1/" */
+	wv_ref next;  /* Next attribute in the list */
+};
+
+struct wv_node {
+	wv_node_type type;
+
+	wv_ref parent;
+	wv_ref first_child;
+	wv_ref last_child;
+	wv_ref prev_sibling;
+	wv_ref next_sibling;
+
+	union {
+		struct {
+			wv_tag_id tag_id;
+			wv_ref attr_head;
+		} element;
+
+		struct {
+			wv_ref str;
+			size_t len;
+		} text;
+	} u;
+};
+
+/* DOM operations */
+wv_ref  wv_node_new(struct wv_arena *arena, wv_node_type type);
+void    wv_node_append(struct wv_arena *arena, wv_ref parent, wv_ref child);
+
+/* Attribute operations */
+wv_ref  wv_attr_get(struct wv_arena *arena, wv_ref node_ref, const char *key_name);
+void    wv_attr_set(struct wv_arena *arena, wv_ref node_ref, wv_ref key_str, wv_ref val_str);
+
+#endif /* WV_DOM_H */
+