1/* Counting the multibyte characters in a string. 2 Copyright (C) 2007-2010 Free Software Foundation, Inc. 3 Written by Bruno Haible <bruno@clisp.org>, 2007. 4 5 This program is free software: you can redistribute it and/or modify 6 it under the terms of the GNU Lesser General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program 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 13 GNU Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18#include <config.h> 19 20/* Specification. */ 21#include <string.h> 22 23#include <stdlib.h> 24 25#include "mbiter.h" 26 27/* Return the number of multibyte characters in the character string starting 28 at STRING and ending at STRING + LEN. */ 29size_t 30mbsnlen (const char *string, size_t len) 31{ 32 if (MB_CUR_MAX > 1) 33 { 34 size_t count; 35 mbi_iterator_t iter; 36 37 count = 0; 38 for (mbi_init (iter, string, len); mbi_avail (iter); mbi_advance (iter)) 39 count++; 40 41 return count; 42 } 43 else 44 return len; 45} 46