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