New (faster) representation for tags added; faster construction of parentheses

[SXSI/XMLTree.git] / libcds / src / utils / alphabet_mapper.cpp

diff --git a/libcds/src/utils/alphabet_mapper.cpp b/libcds/src/utils/alphabet_mapper.cpp
index a1b8cd5..0d35530 100644 (file)
--- a/libcds/src/utils/alphabet_mapper.cpp
+++ b/libcds/src/utils/alphabet_mapper.cpp
@@ -21,12 +21,27 @@
 
 #include <alphabet_mapper.h>
 
+alphabet_mapper::alphabet_mapper() {
+       user_count=0;
+}
+
+void alphabet_mapper::use() {
+       user_count++;
+}
+
+void alphabet_mapper::unuse() {
+       user_count--;
+       if(user_count==0)
+               delete this;
+}
+
 alphabet_mapper * alphabet_mapper::load(FILE *fp) {
   uint rd;
   if(fread(&rd,sizeof(uint),1,fp)!=1) return NULL;
   fseek(fp,-1*sizeof(uint),SEEK_CUR);
   switch(rd) {
     case ALPHABET_MAPPER_NONE_HDR: return alphabet_mapper_none::load(fp);
+    case ALPHABET_MAPPER_CONT_HDR: return alphabet_mapper_cont::load(fp);
   }
   return NULL;
 }