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Diffstat (limited to 'src/3rdparty/webkit/JavaScriptCore/wrec/CharacterClassConstructor.h')
-rw-r--r-- | src/3rdparty/webkit/JavaScriptCore/wrec/CharacterClassConstructor.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/wrec/CharacterClassConstructor.h b/src/3rdparty/webkit/JavaScriptCore/wrec/CharacterClassConstructor.h new file mode 100644 index 0000000..581733d --- /dev/null +++ b/src/3rdparty/webkit/JavaScriptCore/wrec/CharacterClassConstructor.h @@ -0,0 +1,99 @@ +/* + * Copyright (C) 2008 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: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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. + */ + +#ifndef CharacterClassConstructor_h +#define CharacterClassConstructor_h + +#include <wtf/Platform.h> + +#if ENABLE(WREC) + +#include "CharacterClass.h" +#include <wtf/AlwaysInline.h> +#include <wtf/Vector.h> +#include <wtf/unicode/Unicode.h> + +namespace JSC { namespace WREC { + + class CharacterClassConstructor { + public: + CharacterClassConstructor(bool isCaseInsensitive) + : m_charBuffer(-1) + , m_isPendingDash(false) + , m_isCaseInsensitive(isCaseInsensitive) + , m_isUpsideDown(false) + { + } + + void flush(); + + // We need to flush prior to an escaped hyphen to prevent it as being treated as indicating + // a range, e.g. [a\-c] we flush prior to adding the hyphen so that this is not treated as + // [a-c]. However, we do not want to flush if we have already seen a non escaped hyphen - + // e.g. [+-\-] should be treated the same as [+--], producing a range that will also match + // a comma. + void flushBeforeEscapedHyphen() + { + if (!m_isPendingDash) + flush(); + } + + void put(UChar ch); + void append(const CharacterClass& other); + + bool isUpsideDown() { return m_isUpsideDown; } + + ALWAYS_INLINE CharacterClass charClass() + { + CharacterClass newCharClass = { + m_matches.begin(), m_matches.size(), + m_ranges.begin(), m_ranges.size(), + m_matchesUnicode.begin(), m_matchesUnicode.size(), + m_rangesUnicode.begin(), m_rangesUnicode.size(), + }; + + return newCharClass; + } + + private: + void addSorted(Vector<UChar>& matches, UChar ch); + void addSortedRange(Vector<CharacterRange>& ranges, UChar lo, UChar hi); + + int m_charBuffer; + bool m_isPendingDash; + bool m_isCaseInsensitive; + bool m_isUpsideDown; + + Vector<UChar> m_matches; + Vector<CharacterRange> m_ranges; + Vector<UChar> m_matchesUnicode; + Vector<CharacterRange> m_rangesUnicode; + }; + +} } // namespace JSC::WREC + +#endif // ENABLE(WREC) + +#endif // CharacterClassConstructor_h |