Add nextNodeBefore primitive.

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

diff --git a/libcds/src/static_sequence/wt_coder_huff.cpp b/libcds/src/static_sequence/wt_coder_huff.cpp
index f5fafef..5ba633b 100644 (file)
--- a/libcds/src/static_sequence/wt_coder_huff.cpp
+++ b/libcds/src/static_sequence/wt_coder_huff.cpp
@@ -1,4 +1,24 @@
-
+/* wt_coder_huff.cpp
+ * 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
+ *
+ */
+ 
 #include <wt_coder_huff.h>
 
 wt_coder_huff::wt_coder_huff(uint * symbs, uint n, alphabet_mapper * am) {
@@ -11,6 +31,16 @@ wt_coder_huff::wt_coder_huff(uint * symbs, uint n, alphabet_mapper * am) {
     symbs[i] = am->unmap(symbs[i]);
 }
 
+wt_coder_huff::wt_coder_huff(uchar * symbs, uint n, alphabet_mapper * am) {
+  for(uint i=0;i<n;i++)
+    symbs[i] = (uchar)am->map((uint)symbs[i]);
+       hc = new huffman_codes(symbs, n);
+  buffer = new uint[hc->max_length()/W+1]; 
+  s_len = 0; last_symbol = (uint)-1;
+  for(uint i=0;i<n;i++)
+    symbs[i] = (uchar)am->unmap((uint)symbs[i]);
+}
+
 wt_coder_huff::wt_coder_huff() {}
 
 wt_coder_huff::~wt_coder_huff() {