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8968
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1 /* Counting the multibyte characters in a string. |
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2 Copyright (C) 2007 Free Software Foundation, Inc. |
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3 Written by Bruno Haible <bruno@clisp.org>, 2007. |
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4 |
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5 This program is free software; you can redistribute it and/or modify |
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6 it under the terms of the GNU General Public License as published by |
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7 the Free Software Foundation; either version 2, or (at your option) |
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8 any later version. |
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9 |
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10 This program is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 GNU General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU General Public License |
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16 along with this program; if not, write to the Free Software Foundation, |
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17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
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18 |
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19 #include <config.h> |
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20 |
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21 /* Specification. */ |
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22 #include <string.h> |
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23 |
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24 #include <stdlib.h> |
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25 |
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26 #if HAVE_MBRTOWC |
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27 # include "mbiter.h" |
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28 #endif |
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29 |
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30 /* Return the number of multibyte characters in the character string starting |
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31 at STRING and ending at STRING + LEN. */ |
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32 size_t |
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33 mbsnlen (const char *string, size_t len) |
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34 { |
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35 #if HAVE_MBRTOWC |
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36 if (MB_CUR_MAX > 1) |
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37 { |
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38 size_t count; |
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39 mbi_iterator_t iter; |
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40 |
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41 count = 0; |
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42 for (mbi_init (iter, string, len); mbi_avail (iter); mbi_advance (iter)) |
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43 count++; |
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44 |
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45 return count; |
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46 } |
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47 else |
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48 #endif |
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49 return len; |
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50 } |
