posix/glob_internal.h

   1 /* Shared definition for glob and glob_pattern_p.
   2    Copyright (C) 2017 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C 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    The GNU C 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
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef GLOB_INTERNAL_H
  20 # define GLOB_INTERNAL_H
  21
  22 static inline int
  23 __glob_pattern_type (const char *pattern, int quote)
  24 {
  25   const char *p;
  26   int ret = 0;
  27
  28   for (p = pattern; *p != '\0'; ++p)
  29     switch (*p)
  30       {
  31       case '?':
  32       case '*':
  33         return 1;
  34
  35       case '\\':
  36         if (quote)
  37           {
  38             if (p[1] != '\0')
  39               ++p;
  40             ret |= 2;
  41           }
  42         break;
  43
  44       case '[':
  45         ret |= 4;
  46         break;
  47
  48       case ']':
  49         if (ret & 4)
  50           return 1;
  51         break;
  52       }
  53
  54   return ret;
  55 }
  56
  57 #endif /* GLOB_INTERNAL_H  */