Documentation step 6: Properly document text functions.

diff --git a/xml-tree.hpp b/xml-tree.hpp
index fd396e7..1591285 100644 (file)
--- a/xml-tree.hpp
+++ b/xml-tree.hpp
@@ -342,11 +342,43 @@ public:
   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;