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Unified Diff: src/third_party/jscre/pcre_xclass.cpp

Issue 21504: Remove JSCRE (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 11 years, 10 months ago
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Index: src/third_party/jscre/pcre_xclass.cpp
===================================================================
--- src/third_party/jscre/pcre_xclass.cpp (revision 1305)
+++ src/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 v8 { 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 v8::jscre

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