source/texk/kpathsea/extend-fname.c

   1 /* extend-fname.c: give a filename a suffix, if necessary.
   2
   3    Copyright 1992, 1993, 2008, 2011 Karl Berry.
   4
   5    This library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    This library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public License
  16    along with this library; if not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include <kpathsea/config.h>
  19
  20
  21 const_string
  22 extend_filename (const_string name, const_string default_suffix)
  23 {
  24   const_string new_s;
  25   const_string suffix = find_suffix (name);
  26
  27   new_s = suffix == NULL ? concat3 (name, ".", default_suffix)
  28                          : name;
  29   return new_s;
  30 }