/* Line breaking auxiliary functions.

   Copyright (C) 2001-2003, 2006-2025 Free Software Foundation, Inc.

   Written by Bruno Haible <bruno@clisp.org>, 2001.

   This file is free software.

   It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".

   You can redistribute it and/or modify it under either

     - the terms of the GNU Lesser General Public License as published

       by the Free Software Foundation, either version 3, or (at your

       option) any later version, or

     - the terms of the GNU General Public License as published by the

       Free Software Foundation; either version 2, or (at your option)

       any later version, or

     - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".

   This file 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 and the GNU General Public License

   for more details.

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

   License and of the GNU General Public License along with this

   program.  If not, see <https://www.gnu.org/licenses/>.  */

#include <config.h>

/* Specification.  */

#include "unilbrk/ulc-common.h"

#include "c-ctype.h"

#include "c-strcaseeq.h"

int

is_utf8_encoding (const char *encoding)

{

  if (STRCASEEQ (encoding, "UTF-8", 'U', 'T', 'F', '-', '8', 0, 0, 0, 0))

    return 1;

  return 0;

}

#if C_CTYPE_ASCII

/* Tests whether a string is entirely ASCII.  Returns 1 if yes.

   Returns 0 if the string is in an 8-bit encoding or an ISO-2022 encoding.  */

int

is_all_ascii (const char *s, size_t n)

{

  for (; n > 0; s++, n--)

    {

      unsigned char c = (unsigned char) *s;

      if (!(c_isprint (c) || c_isspace (c)))

        return 0;

    }

  return 1;

}

#endif /* C_CTYPE_ASCII */