| 1 | /* |
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| 2 | * Copyright (C) 2011, 2016 Apple Inc. All rights reserved. |
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| 3 | * |
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| 4 | * Redistribution and use in source and binary forms, with or without |
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| 5 | * modification, are permitted provided that the following conditions |
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| 6 | * are met: |
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| 7 | * 1. Redistributions of source code must retain the above copyright |
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| 8 | * notice, this list of conditions and the following disclaimer. |
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| 9 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer in the |
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| 11 | * documentation and/or other materials provided with the distribution. |
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| 12 | * |
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| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
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| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
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| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 24 | */ |
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| 25 | |
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| 26 | #include "config.h" |
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| 27 | #include "YarrSyntaxChecker.h" |
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| 28 | |
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| 29 | #include "YarrParser.h" |
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| 30 | #include <wtf/Optional.h> |
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| 31 | #include <wtf/text/WTFString.h> |
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| 32 | |
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| 33 | namespace JSC { namespace Yarr { |
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| 34 | |
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| 35 | class SyntaxChecker { |
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| 36 | public: |
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| 37 | void assertionBOL() {} |
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| 38 | void assertionEOL() {} |
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| 39 | void assertionWordBoundary(bool) {} |
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| 40 | void atomPatternCharacter(UChar32) {} |
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| 41 | void atomBuiltInCharacterClass(BuiltInCharacterClassID, bool) {} |
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| 42 | void atomCharacterClassBegin(bool = false) {} |
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| 43 | void atomCharacterClassAtom(UChar) {} |
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| 44 | void atomCharacterClassRange(UChar, UChar) {} |
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| 45 | void atomCharacterClassBuiltIn(BuiltInCharacterClassID, bool) {} |
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| 46 | void atomCharacterClassEnd() {} |
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| 47 | void atomParenthesesSubpatternBegin(bool = true, std::optional<String> = std::nullopt) {} |
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| 48 | void atomParentheticalAssertionBegin(bool = false) {} |
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| 49 | void atomParenthesesEnd() {} |
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| 50 | void atomBackReference(unsigned) {} |
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| 51 | void atomNamedBackReference(const String&) {} |
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| 52 | bool isValidNamedForwardReference(const String&) { return true; } |
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| 53 | void atomNamedForwardReference(const String&) {} |
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| 54 | void quantifyAtom(unsigned, unsigned, bool) {} |
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| 55 | void disjunction() {} |
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| 56 | }; |
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| 57 | |
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| 58 | ErrorCode checkSyntax(const String& pattern, const String& flags) |
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| 59 | { |
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| 60 | SyntaxChecker syntaxChecker; |
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| 61 | return parse(delegate&: syntaxChecker, pattern, isUnicode: flags.contains(c: u'u')); |
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| 62 | } |
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| 63 | |
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| 64 | }} // JSC::Yarr |
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| 65 | |
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