diff options
Diffstat (limited to 'lib/unistr/u8-strmblen.c')
| -rw-r--r-- | lib/unistr/u8-strmblen.c | 61 |
1 files changed, 15 insertions, 46 deletions
diff --git a/lib/unistr/u8-strmblen.c b/lib/unistr/u8-strmblen.c index 09b876b8..79412328 100644 --- a/lib/unistr/u8-strmblen.c +++ b/lib/unistr/u8-strmblen.c @@ -1,13 +1,22 @@ /* Look at first character in UTF-8 string. - Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2015 Free Software + Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2002. - This program is free software: you can redistribute it and/or modify it - under the terms of 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. + 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 @@ -33,64 +42,24 @@ u8_strmblen (const uint8_t *s) { if (c < 0xe0) { -#if CONFIG_UNICODE_SAFETY if ((s[1] ^ 0x80) < 0x40) -#else - if (s[1] != 0) -#endif return 2; } else if (c < 0xf0) { -#if CONFIG_UNICODE_SAFETY if ((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 && (c >= 0xe1 || s[1] >= 0xa0) && (c != 0xed || s[1] < 0xa0)) -#else - if (s[1] != 0 && s[2] != 0) -#endif return 3; } else if (c < 0xf8) { -#if CONFIG_UNICODE_SAFETY if ((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 && (s[3] ^ 0x80) < 0x40 && (c >= 0xf1 || s[1] >= 0x90) -#if 1 - && (c < 0xf4 || (c == 0xf4 && s[1] < 0x90)) -#endif - ) -#else - if (s[1] != 0 && s[2] != 0 && s[3] != 0) -#endif + && (c < 0xf4 || (c == 0xf4 && s[1] < 0x90))) return 4; } -#if 0 - else if (c < 0xfc) - { -#if CONFIG_UNICODE_SAFETY - if ((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40 - && (c >= 0xf9 || s[1] >= 0x88)) -#else - if (s[1] != 0 && s[2] != 0 && s[3] != 0 && s[4] != 0) -#endif - return 5; - } - else if (c < 0xfe) - { -#if CONFIG_UNICODE_SAFETY - if ((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40 - && (s[5] ^ 0x80) < 0x40 - && (c >= 0xfd || s[1] >= 0x84)) -#else - if (s[1] != 0 && s[2] != 0 && s[3] != 0 && s[4] != 0 && s[5] != 0) -#endif - return 6; - } -#endif } /* invalid or incomplete multibyte character */ return -1; |