src/filename_ext.cxx

   1 //
   2 // "$Id: filename_ext.cxx 7903 2010-11-28 21:06:39Z matt $"
   3 //
   4 // Filename extension routines for the Fast Light Tool Kit (FLTK).
   5 //
   6 // Copyright 1998-2010 by Bill Spitzak and others.
   7 //
   8 // This library is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU Library General Public
  10 // License as published by the Free Software Foundation; either
  11 // version 2 of the License, or (at your option) any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 // Library General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU Library General Public
  19 // License along with this library; if not, write to the Free Software
  20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21 // USA.
  22 //
  23 // Please report all bugs and problems on the following page:
  24 //
  25 //     http://www.fltk.org/str.php
  26 //
  27
  28 // returns pointer to the last '.' or to the null if none:
  29
  30 #include <FL/filename.H>
  31
  32 /** Gets the extensions of a filename.
  33    \code
  34    #include <FL/filename.H>
  35    [..]
  36    const char *out;
  37    out = fl_filename_ext("/some/path/foo.txt");        // result: ".txt"
  38    out = fl_filename_ext("/some/path/foo");            // result: NULL
  39    \endcode
  40    \param[in] buf the filename to be parsed
  41    \return a pointer to the extension (including '.') if any or NULL otherwise
  42  */
  43 const char *fl_filename_ext(const char *buf) {
  44   const char *q = 0;
  45   const char *p = buf;
  46   for (p=buf; *p; p++) {
  47     if (*p == '/') q = 0;
  48 #if defined(WIN32) || defined(__EMX__) && !defined(__CYGWIN__)
  49     else if (*p == '\\') q = 0;
  50 #endif
  51     else if (*p == '.') q = p;
  52   }
  53   return q ? q : p;
  54 }
  55
  56 //
  57 // End of "$Id: filename_ext.cxx 7903 2010-11-28 21:06:39Z matt $".
  58 //