diff options
Diffstat (limited to 'lib/unistring/unistr/u8-mbtouc-unsafe.c')
| -rw-r--r-- | lib/unistring/unistr/u8-mbtouc-unsafe.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/lib/unistring/unistr/u8-mbtouc-unsafe.c b/lib/unistring/unistr/u8-mbtouc-unsafe.c deleted file mode 100644 index b3c02e75bb..0000000000 --- a/lib/unistring/unistr/u8-mbtouc-unsafe.c +++ /dev/null @@ -1,160 +0,0 @@ -/* Look at first character in UTF-8 string. - Copyright (C) 1999-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc. - Written by Bruno Haible <bruno@clisp.org>, 2001. - - This program is free software: you can redistribute it and/or modify it - under the terms of either: - - * the GNU Lesser General Public License as published - by the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - or - - * the GNU General Public License as published by the Free - Software Foundation; either version 2 of the License, or - (at your option) any later version. - - or both in parallel, as here. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. */ - -#include <config.h> - -#if defined IN_LIBUNISTRING -/* Tell unistr.h to declare u8_mbtouc_unsafe as 'extern', not - 'static inline'. */ -# include "unistring-notinline.h" -#endif - -/* Specification. */ -#include "unistr.h" - -#if !HAVE_INLINE - -int -u8_mbtouc_unsafe (ucs4_t *puc, const uint8_t *s, size_t n) -{ - uint8_t c = *s; - - if (c < 0x80) - { - *puc = c; - return 1; - } - else if (c >= 0xc2) - { - if (c < 0xe0) - { - if (n >= 2) - { - if ((s[1] ^ 0x80) < 0x40) - { - *puc = ((unsigned int) (c & 0x1f) << 6) - | (unsigned int) (s[1] ^ 0x80); - return 2; - } - /* invalid multibyte character */ - } - else - { - /* incomplete multibyte character */ - *puc = 0xfffd; - return 1; - } - } - else if (c < 0xf0) - { - if (n >= 3) - { - if ((s[1] ^ 0x80) < 0x40) - { - if ((s[2] ^ 0x80) < 0x40) - { - if ((c >= 0xe1 || s[1] >= 0xa0) - && (c != 0xed || s[1] < 0xa0)) - { - *puc = ((unsigned int) (c & 0x0f) << 12) - | ((unsigned int) (s[1] ^ 0x80) << 6) - | (unsigned int) (s[2] ^ 0x80); - return 3; - } - /* invalid multibyte character */ - *puc = 0xfffd; - return 3; - } - /* invalid multibyte character */ - *puc = 0xfffd; - return 2; - } - /* invalid multibyte character */ - } - else - { - /* incomplete multibyte character */ - *puc = 0xfffd; - if (n == 1 || (s[1] ^ 0x80) >= 0x40) - return 1; - else - return 2; - } - } - else if (c < 0xf8) - { - if (n >= 4) - { - if ((s[1] ^ 0x80) < 0x40) - { - if ((s[2] ^ 0x80) < 0x40) - { - if ((s[3] ^ 0x80) < 0x40) - { - if ((c >= 0xf1 || s[1] >= 0x90) - && (c < 0xf4 || (c == 0xf4 && s[1] < 0x90)) - ) - { - *puc = ((unsigned int) (c & 0x07) << 18) - | ((unsigned int) (s[1] ^ 0x80) << 12) - | ((unsigned int) (s[2] ^ 0x80) << 6) - | (unsigned int) (s[3] ^ 0x80); - return 4; - } - /* invalid multibyte character */ - *puc = 0xfffd; - return 4; - } - /* invalid multibyte character */ - *puc = 0xfffd; - return 3; - } - /* invalid multibyte character */ - *puc = 0xfffd; - return 2; - } - /* invalid multibyte character */ - } - else - { - /* incomplete multibyte character */ - *puc = 0xfffd; - if (n == 1 || (s[1] ^ 0x80) >= 0x40) - return 1; - else if (n == 2 || (s[2] ^ 0x80) >= 0x40) - return 2; - else - return 3; - } - } - } - /* invalid multibyte character */ - *puc = 0xfffd; - return 1; -} - -#endif |