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Diffstat (limited to 'Source/JavaScriptCore/pcre/pcre_xclass.cpp')
| -rw-r--r-- | Source/JavaScriptCore/pcre/pcre_xclass.cpp | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/Source/JavaScriptCore/pcre/pcre_xclass.cpp b/Source/JavaScriptCore/pcre/pcre_xclass.cpp deleted file mode 100644 index a32edd4..0000000 --- a/Source/JavaScriptCore/pcre/pcre_xclass.cpp +++ /dev/null @@ -1,115 +0,0 @@ -/* This is JavaScriptCore's variant of the PCRE library. While this library -started out as a copy of PCRE, many of the features of PCRE have been -removed. This library now supports only the regular expression features -required by the JavaScript language specification, and has only the functions -needed by JavaScriptCore and the rest of WebKit. - - Originally written by Philip Hazel - Copyright (c) 1997-2006 University of Cambridge - Copyright (C) 2002, 2004, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. - ------------------------------------------------------------------------------ -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 that is used to match an extended -class (one that contains characters whose values are > 255). */ - -#include "config.h" -#include "pcre_internal.h" - -/************************************************* -* Match character against an XCLASS * -*************************************************/ - -/* This function is called to match a character against an extended class that -might contain values > 255. - -Arguments: - c the character - data points to the flag byte of the XCLASS data - -Returns: true if character matches, else false -*/ - -/* Get the next UTF-8 character, advancing the pointer. This is called when we - know we are in UTF-8 mode. */ - -static inline void getUTF8CharAndAdvancePointer(int& c, const unsigned char*& subjectPtr) -{ - c = *subjectPtr++; - if ((c & 0xc0) == 0xc0) { - int gcaa = jsc_pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ - int gcss = 6 * gcaa; - c = (c & jsc_pcre_utf8_table3[gcaa]) << gcss; - while (gcaa-- > 0) { - gcss -= 6; - c |= (*subjectPtr++ & 0x3f) << gcss; - } - } -} - -bool jsc_pcre_xclass(int c, const unsigned char* data) -{ - bool negated = (*data & XCL_NOT); - - /* Character values < 256 are matched against a bitmap, if one is present. If - not, we still carry on, because there may be ranges that start below 256 in the - additional data. */ - - if (c < 256) { - if ((*data & XCL_MAP) != 0 && (data[1 + c/8] & (1 << (c&7))) != 0) - return !negated; /* char found */ - } - - /* First skip the bit map if present. Then match against the list of Unicode - properties or large chars or ranges that end with a large char. We won't ever - encounter XCL_PROP or XCL_NOTPROP when UCP support is not compiled. */ - - if ((*data++ & XCL_MAP) != 0) - data += 32; - - int t; - while ((t = *data++) != XCL_END) { - if (t == XCL_SINGLE) { - int x; - getUTF8CharAndAdvancePointer(x, data); - if (c == x) - return !negated; - } - else if (t == XCL_RANGE) { - int x, y; - getUTF8CharAndAdvancePointer(x, data); - getUTF8CharAndAdvancePointer(y, data); - if (c >= x && c <= y) - return !negated; - } - } - - return negated; /* char did not match */ -} |