/**
* [subtree_elements(n)] returns the number of element nodes below [n]
- * Runs in O(attribute_ids->size()+3)
+ * Runs in O(1)
*/
inline uint32_t subtree_elements(node_t) const;
tag_t register_tag(char *s);
//Navigation functions
+
+ /**
+ * [root()] returns the root node of the tree.
+ * Runs in O(1)
+ */
inline node_t root () const;
+
+ /**
+ * [child(n, i)] returns the [i]th child of [n]
+ * Runs in O(i) (?)
+ */
node_t child(node_t, uint32_t) const;
+
+ /**
+ * [parent(n)] returns the parent node of [n]. Returns
+ * xml_tree::NIL if [n] is the root of the tree.
+ * Runs in O(1)
+ */
inline node_t parent(node_t) const;
+
+ /**
+ * [first_child(n)] returns the first child of [n]. Returns
+ * xml_tree::NIL if [n] is a leaf.
+ * Runs in O(1)
+ */
inline node_t first_child(node_t) const;
+
+ /**
+ * [last_child(n)] returns the last child of [n]. Returns
+ * xml_tree::NIL if [n] is a leaf.
+ * Runs in O(1)
+ */
inline node_t last_child(node_t) const;
+
+ /**
+ * [next_sibling(n)] returns the following sibling of [n].
+ * Returns xml_tree::NIL if [n] is the last of its siblings.
+ * Runs in O(1)
+ */
inline node_t next_sibling(node_t) const;
+
+ /**
+ * [prev_sibling(n)] returns the preceding sibling of [n].
+ * Returns xml_tree::NIL if [n] is the first of its siblings.
+ * Runs in O(1)
+ */
inline node_t prev_sibling(node_t) const;
+
+ /**
+ * [first_element(n)] returns the first child of [n] which
+ * corresponds to an element node. Returns xml_tree::NIL if
+ * no such node exists.
+ * Runs in O(1)
+ */
inline node_t first_element(node_t) const;
+
+ /**
+ * [next_element(n)] returns the first following sibling of [n] which
+ * corresponds to an element node. Returns xml_tree::NIL if
+ * no such node exists.
+ * Runs in O(1)
+ */
inline node_t next_element(node_t) const;
- inline node_t tagged_next_close(node_t, tag_t) const;
+
+ /**
+ * [tagged_next(n, t)] returns the first node following [n] in pre-order
+ * which has tag [t]. Returns xml_tree::NIL if no such node exists.
+ * Runs in O(1)
+ */
inline node_t tagged_next(node_t, tag_t) const;
+
+ /**
+ * [tagged_next_close(n, t)], like [tagged_next(n, t)] but uses a euristic to
+ * return the result faster if the next tag is close to [n].
+ * Runs in O(1)
+ */
+ inline node_t tagged_next_close(node_t, tag_t) const;
+
+ /**
+ * [tagged_descendant(n, t)] returns the first descendant of [n] in
+ * pre-order which has tag [t]. Returns xml_tree::NIL if no such node
+ * exists.
+ * Runs in O(1)
+ */
inline node_t tagged_descendant(node_t, tag_t) const;
+
+ /**
+ * [tagged_following_before(n, t, m)] returns the first following node
+ * of [n] in pre-order which has tag [t] and which occurs before node
+ * [m]. Returns xml_tree::NIL if no such node exists.
+ * Runs in O(1)
+ */
inline node_t tagged_following_before(node_t, tag_t, node_t) const;
+
+ /**
+ * [tagged_child(n, t)] returns the first child of [n] in
+ * pre-order which has tag [t]. Returns xml_tree::NIL if no such node
+ * exists.
+ * Runs in O(1)
+ */
inline node_t tagged_child(node_t, tag_t) const;
+
+ /**
+ * [tagged_sibling(n, t)] returns the first following sibling of [n] in
+ * pre-order which has tag [t]. Returns xml_tree::NIL if no such node
+ * exists.
+ * Runs in O(1)
+ */
inline node_t tagged_sibling(node_t, tag_t) const;
+
+ /**
+ * [select_child(n, tags)] returns the first child of [n] in
+ * pre-order which has a tag in [tags]. [tags] is a xml_tree::NIL_TAG_ID
+ * terminated array of xml_tree::tag_t. Returns xml_tree::NIL if no such
+ * node exists.
+ * Runs in O(sizeof(tags))
+ */
node_t select_child(node_t, tag_t*) const;
+
+ /**
+ * [select_descendant(n, tags)] returns the first descendant of [n] in
+ * pre-order which has a tag in [tags]. [tags] is a xml_tree::NIL_TAG_ID
+ * terminated array of xml_tree::tag_t. Returns xml_tree::NIL if no such
+ * node exists.
+ * Runs in O(sizeof(tags))
+ */
inline node_t select_descendant(node_t, tag_t*) const;
+
+ /**
+ * [select_sibling(n, tags)] returns the first following sibling of
+ * of [n] in pre-order which has a tag in [tags].
+ * [tags] is a xml_tree::NIL_TAG_ID terminated array of xml_tree::tag_t.
+ * Returns xml_tree::NIL if no such node exists.
+ * Runs in O(sizeof(tags))
+ */
node_t select_sibling(node_t, tag_t*) const;
+
+ /**
+ * [select_sibling(n, tags, m)] returns the first following node
+ * of [n] in pre-order which has a tag in [tags] and which occurs before
+ * node [m]. [tags] is a xml_tree::NIL_TAG_ID terminated array of
+ * xml_tree::tag_t. Returns xml_tree::NIL if no such node exists.
+ * Runs in O(sizeof(tags))
+ */
inline node_t select_following_before (node_t, tag_t*, node_t) const;
+
+ /**
+ * [closing(n)] returns the node identifier corresponding to the closing
+ * parenthesis associated with [n] in the underlying BP representation.
+ * The result is undefined if [n] does not point to an opening parenthesis.
+ * Runs in O(1).
+ */
inline node_t closing(node_t) const;
//Text functions
+ /**
+ * [parent_node(i)] returns the node identifier corresponding to the [i]th
+ * text of the text collection. The result is undefined if [i] does not
+ * denote a valid text identifier.
+ * Runs in O(1) ?
+ */
inline node_t parent_node(int32_t) const;
+
+ /**
+ * [get_text_collection()] returns a pointer to the underlying text collection.
+ * The pointer may be 0 if text indexing was disabled during index creation.
+ * Runs in O(1)
+ */
inline SXSI::TextCollection *get_text_collection() const;
+
+ /**
+ * [text_id_range(n)] returns the identifier of the first and last text fragment
+ * that occur below node [n]. Returns (-1, -1) if there are no text fragment
+ * below [n] or if [n] does not denote a valid node.
+ * Runs in O(1) ?
+ */
std::pair<int32_t, int32_t> text_id_range(node_t) const;
+
+ /**
+ * [text_id(n)] returns the identifier of the text fragment associated with
+ * node [n]. The result is unspecified if [n] is not an attribute data node
+ * or a text node.
+ * Runs in O(1) ?
+ */
int32_t text_id(node_t) const;
- unsigned char* get_text(int32_t) const;
+
+ /**
+ * [get_text(i)] returns the content of the [i]th text stored in the text
+ * collection, has a 0 terminated string.
+ * Runs in O(1) ?
+ */
+ const char* get_text(int32_t) const;
SXSI::TextCollection::document_result prefix(uchar const *s) const;
SXSI::TextCollection::document_result suffix(uchar const *s) const;
projects / SXSI / XMLTree.git / blobdiff