/* Look at first character in UTF-8 string.
- Copyright (C) 1999-2000, 2002, 2006-2007 Free Software Foundation, Inc.
+ Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2013 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
int
u8_strmblen (const uint8_t *s)
{
- /* Keep in sync with unistr.h and utf8-ucs4.c. */
+ /* Keep in sync with unistr.h and u8-mbtouc-aux.c. */
uint8_t c = *s;
if (c < 0x80)
if (c >= 0xc2)
{
if (c < 0xe0)
- {
+ {
#if CONFIG_UNICODE_SAFETY
- if ((s[1] ^ 0x80) < 0x40)
+ if ((s[1] ^ 0x80) < 0x40)
#else
- if (s[1] != 0)
+ if (s[1] != 0)
#endif
- return 2;
- }
+ 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))
+ 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)
+ if (s[1] != 0 && s[2] != 0)
#endif
- return 3;
- }
+ 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 ((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
- )
+ )
#else
- if (s[1] != 0 && s[2] != 0 && s[3] != 0)
+ if (s[1] != 0 && s[2] != 0 && s[3] != 0)
#endif
- return 4;
- }
+ 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))
+ 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)
+ if (s[1] != 0 && s[2] != 0 && s[3] != 0 && s[4] != 0)
#endif
- return 5;
- }
+ 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))
+ 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)
+ if (s[1] != 0 && s[2] != 0 && s[3] != 0 && s[4] != 0 && s[5] != 0)
#endif
- return 6;
- }
+ return 6;
+ }
#endif
}
/* invalid or incomplete multibyte character */