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Diffstat (limited to 'src/third_party/pcre-8.42/pcre32_valid_utf32.c')
| -rw-r--r-- | src/third_party/pcre-8.42/pcre32_valid_utf32.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/src/third_party/pcre-8.42/pcre32_valid_utf32.c b/src/third_party/pcre-8.42/pcre32_valid_utf32.c deleted file mode 100644 index 94cda1a2c4c..00000000000 --- a/src/third_party/pcre-8.42/pcre32_valid_utf32.c +++ /dev/null @@ -1,124 +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-32 character -strings. */ - - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -/* Generate code with 32 bit character support. */ -#define COMPILE_PCRE32 - -#include "pcre_internal.h" - -/************************************************* -* Validate a UTF-32 string * -*************************************************/ - -/* This function is called (optionally) at the start of compile or match, to -check that a supposed UTF-32 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. - -More information about the details of the error are passed -back in the returned value: - -PCRE_UTF32_ERR0 No error -PCRE_UTF32_ERR1 Surrogate character -PCRE_UTF32_ERR2 Unused (was non-character) -PCRE_UTF32_ERR3 Character > 0x10ffff - -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-32 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_uchar c; - -if (length < 0) - { - for (p = string; *p != 0; p++); - length = p - string; - } - -for (p = string; length-- > 0; p++) - { - c = *p; - - if ((c & 0xfffff800u) != 0xd800u) - { - /* Normal UTF-32 code point. Neither high nor low surrogate. */ - if (c > 0x10ffffu) - { - *erroroffset = p - string; - return PCRE_UTF32_ERR3; - } - } - else - { - /* A surrogate */ - *erroroffset = p - string; - return PCRE_UTF32_ERR1; - } - } - -#else /* SUPPORT_UTF */ -(void)(string); /* Keep picky compilers happy */ -(void)(length); -(void)(erroroffset); -#endif /* SUPPORT_UTF */ - -return PCRE_UTF32_ERR0; /* This indicates success */ -} - -/* End of pcre32_valid_utf32.c */ |