/* Shared definition for glob and glob_pattern_p.

   Copyright (C) 2017-2024 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <https://www.gnu.org/licenses/>.  */

#ifndef GLOB_INTERNAL_H

# define GLOB_INTERNAL_H

enum

{

  GLOBPAT_NONE      = 0x0,

  GLOBPAT_SPECIAL   = 0x1,

  GLOBPAT_BACKSLASH = 0x2,

  GLOBPAT_BRACKET   = 0x4

};

static inline int

__glob_pattern_type (const char *pattern, int quote)

{

  const char *p;

  int ret = GLOBPAT_NONE;

  for (p = pattern; *p != '\0'; ++p)

    switch (*p)

      {

      case '?':

      case '*':

        return GLOBPAT_SPECIAL;

      case '\\':

        if (quote)

          {

            if (p[1] != '\0')

              ++p;

            ret |= GLOBPAT_BACKSLASH;

          }

        break;

      case '[':

        ret |= GLOBPAT_BRACKET;

        break;

      case ']':

        if (ret & 4)

          return GLOBPAT_SPECIAL;

        break;

      }

  return ret;

}

#endif /* GLOB_INTERNAL_H  */