1  /* Shared definition for glob and glob_pattern_p.
       2     Copyright (C) 2017-2023 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
      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  */