57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* Counting the multibyte characters in a string.
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Copyright (C) 2007-2025 Free Software Foundation, Inc.
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Written by Bruno Haible <bruno@clisp.org>, 2007.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include <string.h>
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#include <stdlib.h>
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#if GNULIB_MCEL_PREFER
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# include "mcel.h"
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#else
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# include "mbuiterf.h"
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#endif
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/* Return the number of multibyte characters in the character string STRING. */
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size_t
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mbslen (const char *string)
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{
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if (MB_CUR_MAX > 1)
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{
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size_t count = 0;
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#if GNULIB_MCEL_PREFER
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for (; *string; string += mcel_scanz (string).len)
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count++;
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#else
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mbuif_state_t state;
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const char *iter;
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for (mbuif_init (state), iter = string; mbuif_avail (state, iter); )
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{
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mbchar_t cur = mbuif_next (state, iter);
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count++;
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iter += mb_len (cur);
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}
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#endif
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return count;
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}
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else
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return strlen (string);
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}
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