Merge xiphis.org:/usr/home/antony/work2/mysql-4.1

into  xiphis.org:/usr/home/antony/work2/merge-5.0


client/mysql.cc:
  Auto merged
client/mysqldump.c:
  Auto merged
client/mysqltest.c:
  Auto merged
myisam/ft_boolean_search.c:
  Auto merged
myisammrg/myrg_static.c:
  Auto merged
mysql-test/r/func_str.result:
  Auto merged
mysql-test/r/rpl_drop_temp.result:
  Auto merged
mysql-test/r/type_datetime.result:
  Auto merged
mysql-test/t/bigint.test:
  Auto merged
mysql-test/t/func_str.test:
  Auto merged
mysql-test/t/rpl_drop_temp.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sql_cache.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql-common/my_time.c:
  Auto merged
include/my_sys.h:
  manual merge 4.1->5.0
mysql-test/r/bigint.result:
  manual merge 4.1->5.0
mysql-test/r/subselect.result:
  manual merge 4.1->5.0
mysql-test/t/subselect.test:
  manual merge 4.1->5.0
mysys/charset.c:
  manual merge 4.1->5.0
sql/ha_ndbcluster.cc:
  manual merge 4.1->5.0
sql/item_strfunc.cc:
  manual merge 4.1->5.0
sql/sql_base.cc:
  manual merge 4.1->5.0
sql/sql_select.cc:
  manual merge 4.1->5.0
sql/sql_union.cc:
  manual merge 4.1->5.0
strings/Makefile.am:
  manual merge 4.1->5.0
tests/mysql_client_test.c:
  manual merge 4.1->5.0

3 files changed, 70 insertions, 1 deletions

diff --git a/mysys/charset.c b/mysys/charset.c
index 701170b747b..c02144fafc0 100644
--- a/mysys/charset.c
+++ b/mysys/charset.c
@@ -679,6 +679,32 @@ ulong escape_string_for_mysql(CHARSET_INFO *charset_info,
 }
 
 
+#ifdef BACKSLASH_MBTAIL
+static CHARSET_INFO *fs_cset_cache= NULL;
+
+CHARSET_INFO *fs_character_set()
+{
+  if (!fs_cset_cache)
+  {
+    char buf[10]= "cp";
+    GetLocaleInfo(LOCALE_SYSTEM_DEFAULT, LOCALE_IDEFAULTANSICODEPAGE,
+                  buf+2, sizeof(buf)-3);
+    /*
+      We cannot call get_charset_by_name here
+      because fs_character_set() is executed before
+      LOCK_THD_charset mutex initialization, which
+      is used inside get_charset_by_name.
+      As we're now interested in cp932 only,
+      let's just detect it using strcmp().
+    */
+    fs_cset_cache= !strcmp(buf, "cp932") ?
+                   &my_charset_cp932_japanese_ci : &my_charset_bin;
+  }
+  return fs_cset_cache;
+}
+#endif
+
+
 /*
   Escape apostrophes by doubling them up
 
diff --git a/mysys/mf_dirname.c b/mysys/mf_dirname.c
index 3de82c05b87..45bf4d56c31 100644
--- a/mysys/mf_dirname.c
+++ b/mysys/mf_dirname.c
@@ -22,6 +22,9 @@
 uint dirname_length(const char *name)
 {
   register my_string pos,gpos;
+#ifdef BASKSLASH_MBTAIL
+  CHARSET_INFO *fs= fs_character_set();
+#endif
 #ifdef FN_DEVCHAR
   if ((pos=(char*)strrchr(name,FN_DEVCHAR)) == 0)
 #endif
@@ -29,12 +32,22 @@ uint dirname_length(const char *name)
 
   gpos= pos++;
   for ( ; *pos ; pos++)				/* Find last FN_LIBCHAR */
+  {
+#ifdef BASKSLASH_MBTAIL
+    uint l;
+    if (use_mb(fs) && (l= my_ismbchar(fs, pos, pos + 3)))
+    {
+      pos+= l - 1;
+      continue;
+    }
+#endif
     if (*pos == FN_LIBCHAR || *pos == '/'
 #ifdef FN_C_AFTER_DIR
 	|| *pos == FN_C_AFTER_DIR || *pos == FN_C_AFTER_DIR_2
 #endif
 	)
       gpos=pos;
+  }
   return ((uint) (uint) (gpos+1-(char*) name));
 }
 
@@ -85,6 +98,9 @@ uint dirname_part(my_string to, const char *name)
 char *convert_dirname(char *to, const char *from, const char *from_end)
 {
   char *to_org=to;
+#ifdef BACKSLASH_MBTAIL
+  CHARSET_INFO *fs= fs_character_set();
+#endif
 
   /* We use -2 here, becasue we need place for the last FN_LIBCHAR */
   if (!from_end || (from_end - from) > FN_REFLEN-2)
@@ -103,7 +119,22 @@ char *convert_dirname(char *to, const char *from, const char *from_end)
 	*to++= FN_C_AFTER_DIR;
 #endif
       else
-	*to++= *from;
+      {
+#ifdef BACKSLASH_MBTAIL
+        uint l;
+        if (use_mb(fs) && (l= my_ismbchar(fs, from, from + 3)))
+        {
+          memmove(to, from, l);
+          to+= l;
+          from+= l - 1;
+          to_org= to; /* Don't look inside mbchar */
+        }
+        else
+#endif
+        {
+          *to++= *from;
+        }
+      }
     }
     *to=0;
   }
diff --git a/mysys/mf_pack.c b/mysys/mf_pack.c
index 86172f648f4..049aa59a578 100644
--- a/mysys/mf_pack.c
+++ b/mysys/mf_pack.c
@@ -124,6 +124,9 @@ uint cleanup_dirname(register my_string to, const char *from)
   reg4 my_string start;
   char parent[5],				/* for "FN_PARENTDIR" */
        buff[FN_REFLEN+1],*end_parentdir;
+#ifdef BACKSLASH_MBTAIL
+  CHARSET_INFO *fs= fs_character_set();
+#endif
   DBUG_ENTER("cleanup_dirname");
   DBUG_PRINT("enter",("from: '%s'",from));
 
@@ -141,6 +144,15 @@ uint cleanup_dirname(register my_string to, const char *from)
   length=(uint) (strmov(parent+1,FN_PARENTDIR)-parent);
   for (pos=start ; (*pos= *from_ptr++) != 0 ; pos++)
   {
+#ifdef BACKSLASH_MBTAIL
+    uint l;
+    if (use_mb(fs) && (l= my_ismbchar(fs, from_ptr - 1, from_ptr + 2)))
+    {
+      for (l-- ; l ; *++pos= *from_ptr++, l--);
+      start= pos + 1; /* Don't look inside multi-byte char */
+      continue;
+    }
+#endif
     if (*pos == '/')
       *pos = FN_LIBCHAR;
     if (*pos == FN_LIBCHAR)