yarr/YarrSyntaxChecker.cpp

   1 /*
   2  * Copyright (C) 2011 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
  31 namespace JSC { namespace Yarr {
  32
  33 class SyntaxChecker {
  34 public:
  35     void assertionBOL() {}
  36     void assertionEOL() {}
  37     void assertionWordBoundary(bool) {}
  38     void atomPatternCharacter(UChar) {}
  39     void atomBuiltInCharacterClass(BuiltInCharacterClassID, bool) {}
  40     void atomCharacterClassBegin(bool = false) {}
  41     void atomCharacterClassAtom(UChar) {}
  42     void atomCharacterClassRange(UChar, UChar) {}
  43     void atomCharacterClassBuiltIn(BuiltInCharacterClassID, bool) {}
  44     void atomCharacterClassEnd() {}
  45     void atomParenthesesSubpatternBegin(bool = true) {}
  46     void atomParentheticalAssertionBegin(bool = false) {}
  47     void atomParenthesesEnd() {}
  48     void atomBackReference(unsigned) {}
  49     void quantifyAtom(unsigned, unsigned, bool) {}
  50     void disjunction() {}
  51 };
  52
  53 const char* checkSyntax(const String& pattern)
  54 {
  55     SyntaxChecker syntaxChecker;
  56     return parse(syntaxChecker, pattern);
  57 }
  58
  59 }} // JSC::YARR