nobu	2007-12-29 22:44:32 +0900 (Sat, 29 Dec 2007)

  New Revision: 14782

  Modified files:
    trunk/ChangeLog
    trunk/re.c
    trunk/string.c

  Log:
    * re.c (rb_reg_regsub): returns the given string itself if nothing
      changed.
    
    * string.c (rb_str_sub_bang): keeps code-range as possible.
    
    * string.c (str_gsub): adjusts code-range.  [ruby-core:14566]


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/string.c?r1=14782&r2=14781
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=14782&r2=14781
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/re.c?r1=14782&r2=14781