diff options
Diffstat (limited to 'lib/unistr/u8-check.c')
| -rw-r--r-- | lib/unistr/u8-check.c | 126 |
1 files changed, 63 insertions, 63 deletions
diff --git a/lib/unistr/u8-check.c b/lib/unistr/u8-check.c index 53897fc5..368042b0 100644 --- a/lib/unistr/u8-check.c +++ b/lib/unistr/u8-check.c @@ -1,5 +1,5 @@ /* Check UTF-8 string. - Copyright (C) 2002, 2006-2007 Free Software Foundation, Inc. + Copyright (C) 2002, 2006-2007, 2009-2010 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 @@ -31,73 +31,73 @@ u8_check (const uint8_t *s, size_t n) uint8_t c = *s; if (c < 0x80) - { - s++; - continue; - } + { + s++; + continue; + } if (c >= 0xc2) - { - if (c < 0xe0) - { - if (s + 2 <= s_end - && (s[1] ^ 0x80) < 0x40) - { - s += 2; - continue; - } - } - else if (c < 0xf0) - { - if (s + 3 <= s_end - && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (c >= 0xe1 || s[1] >= 0xa0) - && (c != 0xed || s[1] < 0xa0)) - { - s += 3; - continue; - } - } - else if (c < 0xf8) - { - if (s + 4 <= s_end - && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (s[3] ^ 0x80) < 0x40 - && (c >= 0xf1 || s[1] >= 0x90) + { + if (c < 0xe0) + { + if (s + 2 <= s_end + && (s[1] ^ 0x80) < 0x40) + { + s += 2; + continue; + } + } + else if (c < 0xf0) + { + if (s + 3 <= s_end + && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 + && (c >= 0xe1 || s[1] >= 0xa0) + && (c != 0xed || s[1] < 0xa0)) + { + s += 3; + continue; + } + } + else if (c < 0xf8) + { + if (s + 4 <= s_end + && (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)) + && (c < 0xf4 || (c == 0xf4 && s[1] < 0x90)) #endif - ) - { - s += 4; - continue; - } - } + ) + { + s += 4; + continue; + } + } #if 0 - else if (c < 0xfc) - { - if (s + 5 <= s_end - && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40 - && (c >= 0xf9 || s[1] >= 0x88)) - { - s += 5; - continue; - } - } - else if (c < 0xfe) - { - if (s + 6 <= s_end - && (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)) - { - s += 6; - continue; - } - } + else if (c < 0xfc) + { + if (s + 5 <= s_end + && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 + && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40 + && (c >= 0xf9 || s[1] >= 0x88)) + { + s += 5; + continue; + } + } + else if (c < 0xfe) + { + if (s + 6 <= s_end + && (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)) + { + s += 6; + continue; + } + } #endif - } + } /* invalid or incomplete multibyte character */ return s; } |