diff options
Diffstat (limited to 'lib/libc/locale/utf2.c')
| -rw-r--r-- | lib/libc/locale/utf2.c | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/lib/libc/locale/utf2.c b/lib/libc/locale/utf2.c deleted file mode 100644 index cf0e3c8..0000000 --- a/lib/libc/locale/utf2.c +++ /dev/null @@ -1,184 +0,0 @@ -/*- - * Copyright (c) 2002-2004 Tim J. Robbins - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -/* - * UTF2 encoding. - * - * This is an obsolete subset of UTF-8, maintained for temporary - * compatibility with old applications. It is limited to 1-, 2- or - * 3-byte encodings, and allows redundantly-encoded characters. - * - * See utf2(5) for details. - */ - -/* UTF2 is obsolete and will be removed in FreeBSD 6 -- use UTF-8 instead. */ -#define OBSOLETE_IN_6 - -#include <sys/param.h> -__FBSDID("$FreeBSD$"); - -#include <errno.h> -#include <runetype.h> -#include <stdlib.h> -#include <string.h> -#include <wchar.h> -#include "mblocal.h" - -size_t _UTF2_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t, - mbstate_t * __restrict); -int _UTF2_mbsinit(const mbstate_t *); -size_t _UTF2_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict); - -typedef struct { - int count; - u_char bytes[3]; -} _UTF2State; - -int -_UTF2_init(_RuneLocale *rl) -{ - - __mbrtowc = _UTF2_mbrtowc; - __wcrtomb = _UTF2_wcrtomb; - __mbsinit = _UTF2_mbsinit; - _CurrentRuneLocale = rl; - __mb_cur_max = 3; - - return (0); -} - -int -_UTF2_mbsinit(const mbstate_t *ps) -{ - - return (ps == NULL || ((const _UTF2State *)ps)->count == 0); -} - -size_t -_UTF2_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n, - mbstate_t * __restrict ps) -{ - _UTF2State *us; - int ch, i, len, mask, ocount; - wchar_t wch; - size_t ncopy; - - us = (_UTF2State *)ps; - - if (us->count < 0 || us->count > sizeof(us->bytes)) { - errno = EINVAL; - return ((size_t)-1); - } - - if (s == NULL) { - s = ""; - n = 1; - pwc = NULL; - } - - ncopy = MIN(MIN(n, MB_CUR_MAX), sizeof(us->bytes) - us->count); - memcpy(us->bytes + us->count, s, ncopy); - ocount = us->count; - us->count += ncopy; - s = (char *)us->bytes; - n = us->count; - - if (n == 0) - return ((size_t)-2); - - ch = (unsigned char)*s; - if ((ch & 0x80) == 0) { - mask = 0x7f; - len = 1; - } else if ((ch & 0xe0) == 0xc0) { - mask = 0x1f; - len = 2; - } else if ((ch & 0xf0) == 0xe0) { - mask = 0x0f; - len = 3; - } else { - errno = EILSEQ; - return ((size_t)-1); - } - - if (n < (size_t)len) - return ((size_t)-2); - - wch = (unsigned char)*s++ & mask; - i = len; - while (--i != 0) { - if ((*s & 0xc0) != 0x80) { - errno = EILSEQ; - return ((size_t)-1); - } - wch <<= 6; - wch |= *s++ & 0x3f; - } - if (pwc != NULL) - *pwc = wch; - us->count = 0; - return (wch == L'\0' ? 0 : len - ocount); -} - -size_t -_UTF2_wcrtomb(char * __restrict s, wchar_t wc, mbstate_t * __restrict ps) -{ - _UTF2State *us; - unsigned char lead; - int i, len; - - us = (_UTF2State *)ps; - - if (us->count != 0) { - errno = EINVAL; - return ((size_t)-1); - } - - if (s == NULL) - /* Reset to initial conversion state. */ - return (1); - - if ((wc & ~0x7f) == 0) { - lead = 0; - len = 1; - } else if ((wc & ~0x7ff) == 0) { - lead = 0xc0; - len = 2; - } else if ((wc & ~0xffff) == 0) { - lead = 0xe0; - len = 3; - } else { - errno = EILSEQ; - return ((size_t)-1); - } - - for (i = len - 1; i > 0; i--) { - s[i] = (wc & 0x3f) | 0x80; - wc >>= 6; - } - *s = (wc & 0xff) | lead; - - return (len); -} |
