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Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/wrec/WRECParser.h')
| -rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/wrec/WRECParser.h | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/wrec/WRECParser.h b/src/3rdparty/javascriptcore/JavaScriptCore/wrec/WRECParser.h deleted file mode 100644 index a3e151b..0000000 --- a/src/3rdparty/javascriptcore/JavaScriptCore/wrec/WRECParser.h +++ /dev/null @@ -1,214 +0,0 @@ -/* - * 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 Parser_h -#define Parser_h - -#include <wtf/Platform.h> - -#if ENABLE(WREC) - -#include "Escapes.h" -#include "Quantifier.h" -#include "UString.h" -#include "WRECGenerator.h" -#include <wtf/ASCIICType.h> - -namespace JSC { namespace WREC { - - struct CharacterClass; - - class Parser { - typedef Generator::JumpList JumpList; - typedef Generator::ParenthesesType ParenthesesType; - - friend class SavedState; - - public: - Parser(const UString& pattern, bool ignoreCase, bool multiline) - : m_generator(*this) - , m_data(pattern.data()) - , m_size(pattern.size()) - , m_ignoreCase(ignoreCase) - , m_multiline(multiline) - { - reset(); - } - - Generator& generator() { return m_generator; } - - bool ignoreCase() const { return m_ignoreCase; } - bool multiline() const { return m_multiline; } - - void recordSubpattern() { ++m_numSubpatterns; } - unsigned numSubpatterns() const { return m_numSubpatterns; } - - const char* error() const { return m_error; } - const char* syntaxError() const { return m_error == ParenthesesNotSupported ? 0 : m_error; } - - void parsePattern(JumpList& failures) - { - reset(); - - parseDisjunction(failures); - - if (peek() != EndOfPattern) - setError(ParenthesesUnmatched); // Parsing the pattern should fully consume it. - } - - void parseDisjunction(JumpList& failures); - void parseAlternative(JumpList& failures); - bool parseTerm(JumpList& failures); - bool parseNonCharacterEscape(JumpList& failures, const Escape&); - bool parseParentheses(JumpList& failures); - bool parseCharacterClass(JumpList& failures); - bool parseCharacterClassQuantifier(JumpList& failures, const CharacterClass& charClass, bool invert); - bool parseBackreferenceQuantifier(JumpList& failures, unsigned subpatternId); - - private: - class SavedState { - public: - SavedState(Parser& parser) - : m_parser(parser) - , m_index(parser.m_index) - { - } - - void restore() - { - m_parser.m_index = m_index; - } - - private: - Parser& m_parser; - unsigned m_index; - }; - - void reset() - { - m_index = 0; - m_numSubpatterns = 0; - m_error = 0; - } - - void setError(const char* error) - { - if (m_error) - return; - m_error = error; - } - - int peek() - { - if (m_index >= m_size) - return EndOfPattern; - return m_data[m_index]; - } - - int consume() - { - if (m_index >= m_size) - return EndOfPattern; - return m_data[m_index++]; - } - - bool peekIsDigit() - { - return WTF::isASCIIDigit(peek()); - } - - unsigned peekDigit() - { - ASSERT(peekIsDigit()); - return peek() - '0'; - } - - unsigned consumeDigit() - { - ASSERT(peekIsDigit()); - return consume() - '0'; - } - - unsigned consumeNumber() - { - int n = consumeDigit(); - while (peekIsDigit()) { - n *= 10; - n += consumeDigit(); - } - return n; - } - - int consumeHex(int count) - { - int n = 0; - while (count--) { - if (!WTF::isASCIIHexDigit(peek())) - return -1; - n = (n << 4) | WTF::toASCIIHexValue(consume()); - } - return n; - } - - unsigned consumeOctal() - { - unsigned n = 0; - while (n < 32 && WTF::isASCIIOctalDigit(peek())) - n = n * 8 + consumeDigit(); - return n; - } - - ALWAYS_INLINE Quantifier consumeGreedyQuantifier(); - Quantifier consumeQuantifier(); - Escape consumeEscape(bool inCharacterClass); - ParenthesesType consumeParenthesesType(); - - static const int EndOfPattern = -1; - - // Error messages. - static const char* QuantifierOutOfOrder; - static const char* QuantifierWithoutAtom; - static const char* ParenthesesUnmatched; - static const char* ParenthesesTypeInvalid; - static const char* ParenthesesNotSupported; - static const char* CharacterClassUnmatched; - static const char* CharacterClassOutOfOrder; - static const char* EscapeUnterminated; - - Generator m_generator; - const UChar* m_data; - unsigned m_size; - unsigned m_index; - bool m_ignoreCase; - bool m_multiline; - unsigned m_numSubpatterns; - const char* m_error; - }; - -} } // namespace JSC::WREC - -#endif // ENABLE(WREC) - -#endif // Parser_h |