1 /* Copyright (C) 2001, 2006, 2009, 2010, 2012 Free Software Foundation, Inc.
3 This program is free software: you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 3 of the License, or
6 (at your option) any later version.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 #if defined (HANDLE_MULTIBYTE)
28 /* Bit table of characters in the ISO C "basic character set". */
29 const unsigned int is_basic_table [UCHAR_MAX / 32 + 1] =
31 0x00001a00, /* '\t' '\v' '\f' */
32 0xffffffef, /* ' '...'#' '%'...'?' */
33 0xfffffffe, /* 'A'...'Z' '[' '\\' ']' '^' '_' */
34 0x7ffffffe /* 'a'...'z' '{' '|' '}' '~' */
35 /* The remaining bits are 0. */
38 #endif /* IS_BASIC_ASCII */
45 mbstate_t mbs = { 0 }, mbsbak = { 0 };
49 while (*s && (clen = (f = is_basic (*s)) ? 1 : mbrlen(s, MB_CUR_MAX, &mbs)) != 0)
51 if (MB_INVALIDCH(clen))
53 clen = 1; /* assume single byte */
66 /* Return pointer to first multibyte char in S, or NULL if none. */
73 mbstate_t mbs = { 0 };
75 for (t = (char *)s; *t; t++)
80 clen = mbrlen (t, MB_CUR_MAX, &mbs);
84 if (MB_INVALIDCH(clen))
94 sh_mbsnlen(src, srclen, maxlen)
103 for (sind = count = 0; src[sind]; )
105 count++; /* number of multibyte characters */
106 ADVANCE_CHAR (src, srclen, sind);