diff options
author | George Hazan <george.hazan@gmail.com> | 2015-06-16 11:04:10 +0000 |
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committer | George Hazan <george.hazan@gmail.com> | 2015-06-16 11:04:10 +0000 |
commit | 437835559168a5945a1196161660c439266eb59d (patch) | |
tree | 60ee164dbe2d9fed20a7455b5e72f3d5b54e6839 /plugins/Pcre16/src/pcre16_valid_utf16.c | |
parent | ef9e5821a695a9f875712c2d767360cce15c0f6b (diff) |
unified project for pcre16 moved to libs
git-svn-id: http://svn.miranda-ng.org/main/trunk@14195 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/Pcre16/src/pcre16_valid_utf16.c')
-rw-r--r-- | plugins/Pcre16/src/pcre16_valid_utf16.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/plugins/Pcre16/src/pcre16_valid_utf16.c b/plugins/Pcre16/src/pcre16_valid_utf16.c deleted file mode 100644 index 09076539d0..0000000000 --- a/plugins/Pcre16/src/pcre16_valid_utf16.c +++ /dev/null @@ -1,137 +0,0 @@ -/************************************************* -* Perl-Compatible Regular Expressions * -*************************************************/ - -/* PCRE is a library of functions to support regular expressions whose syntax -and semantics are as close as possible to those of the Perl 5 language. - - Written by Philip Hazel - Copyright (c) 1997-2013 University of Cambridge - ------------------------------------------------------------------------------ -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - * Neither the name of the University of Cambridge nor the names of its - contributors may be used to endorse or promote products derived from - this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE -LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -POSSIBILITY OF SUCH DAMAGE. ------------------------------------------------------------------------------ -*/ - - -/* This module contains an internal function for validating UTF-16 character -strings. */ - - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -/* Generate code with 16 bit character support. */ -#define COMPILE_PCRE16 - -#include "pcre_internal.h" - - -/************************************************* -* Validate a UTF-16 string * -*************************************************/ - -/* This function is called (optionally) at the start of compile or match, to -check that a supposed UTF-16 string is actually valid. The early check means -that subsequent code can assume it is dealing with a valid string. The check -can be turned off for maximum performance, but the consequences of supplying an -invalid string are then undefined. - -From release 8.21 more information about the details of the error are passed -back in the returned value: - -PCRE_UTF16_ERR0 No error -PCRE_UTF16_ERR1 Missing low surrogate at the end of the string -PCRE_UTF16_ERR2 Invalid low surrogate -PCRE_UTF16_ERR3 Isolated low surrogate -PCRE_UTF16_ERR4 Unused (was non-character) - -Arguments: - string points to the string - length length of string, or -1 if the string is zero-terminated - errp pointer to an error position offset variable - -Returns: = 0 if the string is a valid UTF-16 string - > 0 otherwise, setting the offset of the bad character -*/ - -int -PRIV(valid_utf)(PCRE_PUCHAR string, int length, int *erroroffset) -{ -#ifdef SUPPORT_UTF -register PCRE_PUCHAR p; -register pcre_uint32 c; - -if (length < 0) - { - for (p = string; *p != 0; p++); - length = p - string; - } - -for (p = string; length-- > 0; p++) - { - c = *p; - - if ((c & 0xf800) != 0xd800) - { - /* Normal UTF-16 code point. Neither high nor low surrogate. */ - } - else if ((c & 0x0400) == 0) - { - /* High surrogate. Must be a followed by a low surrogate. */ - if (length == 0) - { - *erroroffset = p - string; - return PCRE_UTF16_ERR1; - } - p++; - length--; - if ((*p & 0xfc00) != 0xdc00) - { - *erroroffset = p - string; - return PCRE_UTF16_ERR2; - } - } - else - { - /* Isolated low surrogate. Always an error. */ - *erroroffset = p - string; - return PCRE_UTF16_ERR3; - } - } - -#else /* SUPPORT_UTF */ -(void)(string); /* Keep picky compilers happy */ -(void)(length); -(void)(erroroffset); -#endif /* SUPPORT_UTF */ - -return PCRE_UTF16_ERR0; /* This indicates success */ -} - -/* End of pcre16_valid_utf16.c */ |