From eec3c9ab5eb881d596b489f1f6024e4ac29f23ce Mon Sep 17 00:00:00 2001
From: Dimitri van Heesch <doxygen@gmail.com>
Date: Fri, 1 Jan 2021 11:28:09 +0100
Subject: Refactoring: remove unused Doxygen::htmlDirMap

---
 src/doxygen.cpp |  1 -
 src/doxygen.h   |  1 -
 src/util.cpp    | 43 ++-----------------------------------------
 3 files changed, 2 insertions(+), 43 deletions(-)

diff --git a/src/doxygen.cpp b/src/doxygen.cpp
index bd2f69e..4c66014 100644
--- a/src/doxygen.cpp
+++ b/src/doxygen.cpp
@@ -146,7 +146,6 @@ SearchIndexIntf      *Doxygen::searchIndex=0;
 SymbolMap<Definition> Doxygen::symbolMap;
 QDict<Definition>    *Doxygen::clangUsrMap = 0;
 bool                  Doxygen::outputToWizard=FALSE;
-QDict<int> *          Doxygen::htmlDirMap = 0;
 Cache<std::string,LookupInfo> *Doxygen::lookupCache;
 DirLinkedMap         *Doxygen::dirLinkedMap;
 SDict<DirRelation>    Doxygen::dirRelations(257);
diff --git a/src/doxygen.h b/src/doxygen.h
index a75618c..2ce27bd 100644
--- a/src/doxygen.h
+++ b/src/doxygen.h
@@ -126,7 +126,6 @@ class Doxygen
     static SymbolMap<Definition>     symbolMap;
     static QDict<Definition>        *clangUsrMap;
     static bool                      outputToWizard;
-    static QDict<int>               *htmlDirMap;
     static Cache<std::string,LookupInfo> *lookupCache;
     static DirLinkedMap             *dirLinkedMap;
     static SDict<DirRelation>        dirRelations;
diff --git a/src/util.cpp b/src/util.cpp
index b520505..d64994b 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -83,17 +83,6 @@
 
 //------------------------------------------------------------------------
 
-// selects one of the name to sub-dir mapping algorithms that is used
-// to select a sub directory when CREATE_SUBDIRS is set to YES.
-
-#define ALGO_COUNT 1
-#define ALGO_CRC16 2
-#define ALGO_MD5   3
-
-//#define MAP_ALGO ALGO_COUNT
-//#define MAP_ALGO ALGO_CRC16
-#define MAP_ALGO ALGO_MD5
-
 #define REL_PATH_TO_ROOT "../../"
 
 static const char *hex = "0123456789ABCDEF";
@@ -3834,40 +3823,12 @@ QCString convertNameToFile(const char *name,bool allowDots,bool allowUnderscore)
   {
     int l1Dir=0,l2Dir=0;
 
-#if MAP_ALGO==ALGO_COUNT
-    // old algorithm, has the problem that after regeneration the
-    // output can be located in a different dir.
-    if (Doxygen::htmlDirMap==0)
-    {
-      Doxygen::htmlDirMap=new QDict<int>(100003);
-      Doxygen::htmlDirMap->setAutoDelete(TRUE);
-    }
-    static int curDirNum=0;
-    int *dirNum = Doxygen::htmlDirMap->find(result);
-    if (dirNum==0) // new name
-    {
-      Doxygen::htmlDirMap->insert(result,new int(curDirNum));
-      l1Dir = (curDirNum)&0xf;    // bits 0-3
-      l2Dir = (curDirNum>>4)&0xff; // bits 4-11
-      curDirNum++;
-    }
-    else // existing name
-    {
-      l1Dir = (*dirNum)&0xf;       // bits 0-3
-      l2Dir = ((*dirNum)>>4)&0xff; // bits 4-11
-    }
-#elif MAP_ALGO==ALGO_CRC16
-    // second algorithm based on CRC-16 checksum
-    int dirNum = qChecksum(result,result.length());
-    l1Dir = dirNum&0xf;
-    l2Dir = (dirNum>>4)&0xff;
-#elif MAP_ALGO==ALGO_MD5
-    // third algorithm based on MD5 hash
+    // compute md5 hash to determine sub directory to use
     uchar md5_sig[16];
     MD5Buffer((const unsigned char *)result.data(),result.length(),md5_sig);
     l1Dir = md5_sig[14]&0xf;
     l2Dir = md5_sig[15];
-#endif
+
     result.prepend(QCString().sprintf("d%x/d%02x/",l1Dir,l2Dir));
   }
   //printf("*** convertNameToFile(%s)->%s\n",name,result.data());
-- 
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