X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Funistr%2Fu8-mblen.c;h=e15f66f7b6dba374d0ac35030cdb65967735348e;hb=4779b635ef35c7b0bc4044fcb5bc746d06f158c4;hp=4d42b493b82cf0e661c2d31572a69813080bd0bc;hpb=5973fdf3621d596452f3b9d8af3492ccc530600a;p=gnulib.git diff --git a/lib/unistr/u8-mblen.c b/lib/unistr/u8-mblen.c index 4d42b493b..e15f66f7b 100644 --- a/lib/unistr/u8-mblen.c +++ b/lib/unistr/u8-mblen.c @@ -1,21 +1,20 @@ /* 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 , 2002. - This program is free software; you can redistribute it and/or modify it - under the terms of the GNU Library General Public License as published - by the Free Software Foundation; either version 2, or (at your option) - any later version. + 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 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 - Library General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU Library General Public - License along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, - USA. */ + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ #include @@ -27,73 +26,73 @@ u8_mblen (const uint8_t *s, size_t n) { if (n > 0) { - /* 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) - return (c != 0 ? 1 : 0); + return (c != 0 ? 1 : 0); if (c >= 0xc2) - { - if (c < 0xe0) - { - if (n >= 2 + { + if (c < 0xe0) + { + if (n >= 2 #if CONFIG_UNICODE_SAFETY - && (s[1] ^ 0x80) < 0x40 + && (s[1] ^ 0x80) < 0x40 #endif - ) - return 2; - } - else if (c < 0xf0) - { - if (n >= 3 + ) + return 2; + } + else if (c < 0xf0) + { + if (n >= 3 #if CONFIG_UNICODE_SAFETY - && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (c >= 0xe1 || s[1] >= 0xa0) - && (c != 0xed || s[1] < 0xa0) + && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 + && (c >= 0xe1 || s[1] >= 0xa0) + && (c != 0xed || s[1] < 0xa0) #endif - ) - return 3; - } - else if (c < 0xf8) - { - if (n >= 4 + ) + return 3; + } + else if (c < 0xf8) + { + if (n >= 4 #if CONFIG_UNICODE_SAFETY - && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (s[3] ^ 0x80) < 0x40 - && (c >= 0xf1 || s[1] >= 0x90) + && (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 #endif - ) - return 4; - } + ) + return 4; + } #if 0 - else if (c < 0xfc) - { - if (n >= 5 + else if (c < 0xfc) + { + if (n >= 5 #if CONFIG_UNICODE_SAFETY - && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40 - && (c >= 0xf9 || s[1] >= 0x88) + && (s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 + && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40 + && (c >= 0xf9 || s[1] >= 0x88) #endif - ) - return 5; - } - else if (c < 0xfe) - { - if (n >= 6 + ) + return 5; + } + else if (c < 0xfe) + { + if (n >= 6 #if CONFIG_UNICODE_SAFETY - && (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[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 + && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40 + && (s[5] ^ 0x80) < 0x40 + && (c >= 0xfd || s[1] >= 0x84) #endif - ) - return 6; - } + ) + return 6; + } #endif - } + } } /* invalid or incomplete multibyte character */ return -1;