Index: runtime/third_party/jscre/pcre_xclass.cpp |
=================================================================== |
--- runtime/third_party/jscre/pcre_xclass.cpp (revision 44981) |
+++ runtime/third_party/jscre/pcre_xclass.cpp (working copy) |
@@ -1,118 +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 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 "pcre_internal.h" |
- |
-namespace dart { namespace jscre { |
- |
-/************************************************* |
-* 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 = kjs_pcre_utf8_table4[c & 0x3f]; /* Number of additional bytes */ |
- int gcss = 6 * gcaa; |
- c = (c & kjs_pcre_utf8_table3[gcaa]) << gcss; |
- while (gcaa-- > 0) { |
- gcss -= 6; |
- c |= (*subjectPtr++ & 0x3f) << gcss; |
- } |
- } |
-} |
- |
-bool kjs_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 */ |
-} |
- |
-} } // namespace dart::jscre |