1 /* Shared definition for glob and glob_pattern_p.
2    Copyright (C) 2017-2022 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    <https://www.gnu.org/licenses/>.  */
18 
19 #ifndef GLOB_INTERNAL_H
20 # define GLOB_INTERNAL_H
21 
22 enum
23 {
24   GLOBPAT_NONE      = 0x0,
25   GLOBPAT_SPECIAL   = 0x1,
26   GLOBPAT_BACKSLASH = 0x2,
27   GLOBPAT_BRACKET   = 0x4
28 };
29 
30 static inline int
__glob_pattern_type(const char * pattern,int quote)31 __glob_pattern_type (const char *pattern, int quote)
32 {
33   const char *p;
34   int ret = GLOBPAT_NONE;
35 
36   for (p = pattern; *p != '\0'; ++p)
37     switch (*p)
38       {
39       case '?':
40       case '*':
41         return GLOBPAT_SPECIAL;
42 
43       case '\\':
44         if (quote)
45           {
46             if (p[1] != '\0')
47               ++p;
48             ret |= GLOBPAT_BACKSLASH;
49           }
50         break;
51 
52       case '[':
53         ret |= GLOBPAT_BRACKET;
54         break;
55 
56       case ']':
57         if (ret & 4)
58           return GLOBPAT_SPECIAL;
59         break;
60       }
61 
62   return ret;
63 }
64 
65 #endif /* GLOB_INTERNAL_H  */
66