Add nextNodeBefore primitive.

[SXSI/XMLTree.git] / libcds / src / static_sequence / wt_coder_huff.h

diff --git a/libcds/src/static_sequence/wt_coder_huff.h b/libcds/src/static_sequence/wt_coder_huff.h
index cb05056..1811ff0 100644 (file)
--- a/libcds/src/static_sequence/wt_coder_huff.h
+++ b/libcds/src/static_sequence/wt_coder_huff.h
@@ -1,4 +1,24 @@
-
+/* wt_coder_huff.h
+ * Copyright (C) 2008, Francisco Claude, all rights reserved.
+ *
+ * wt_coder_huff definition
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+ 
 #ifndef wt_coder_huff_h
 #define wt_coder_huff_h
 
@@ -7,16 +27,23 @@
 #include <huffman_codes.h>
 #include <alphabet_mapper.h>
 
+/** Uses huffman codes to determine the shape of the wavelet tree  
+ * 
+ *  @author Francisco Claude
+ */
 class wt_coder_huff: public wt_coder {
        public:
+    /** Buils a wt_coder_huff using the sequence of length n and the alphabet_mapper
+     *  to determine the huffman codes */
                wt_coder_huff(uint *symbs, uint n, alphabet_mapper * am);
+               wt_coder_huff(uchar *symbs, uint n, alphabet_mapper * am);
                virtual ~wt_coder_huff();
                virtual bool is_set(uint symbol, uint l);
                virtual bool done(uint symbol, uint l);
     virtual uint size();
     virtual uint save(FILE *fp);
     static wt_coder_huff * load(FILE *fp);
-    uint * get_buffer(uint symbol, uint *n);
+    //uint * get_buffer(uint symbol, uint *n);
 
        protected:
     wt_coder_huff();
@@ -26,4 +53,3 @@ class wt_coder_huff: public wt_coder {
 };
 
 #endif
-