kjs/regexp.h

   1 // -*- c-basic-offset: 2 -*-
   2 /*
   3  *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
   4  *  Copyright (C) 2007 Apple Inc. All rights reserved.
   5  *
   6  *  This library is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU Lesser General Public
   8  *  License as published by the Free Software Foundation; either
   9  *  version 2 of the License, or (at your option) any later version.
  10  *
  11  *  This library is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  *  Lesser General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU Lesser General Public
  17  *  License along with this library; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifndef KJS_REGEXP_H
  23 #define KJS_REGEXP_H
  24
  25 #include "ustring.h"
  26 #include <pcre/pcre.h>
  27 #include <sys/types.h>
  28 #include <wtf/OwnArrayPtr.h>
  29 #include <wtf/RefCounted.h>
  30
  31 namespace KJS {
  32
  33   class RegExp : public RefCounted<RegExp> {
  34   private:
  35     enum {
  36         Global = 1,
  37         IgnoreCase = 2,
  38         Multiline = 4
  39     };
  40
  41   public:
  42     RegExp(const UString& pattern);
  43     RegExp(const UString& pattern, const UString& flags);
  44     ~RegExp();
  45
  46     bool global() const { return m_flagBits & Global; }
  47     bool ignoreCase() const { return m_flagBits & IgnoreCase; }
  48     bool multiline() const { return m_flagBits & Multiline; }
  49
  50     const UString& pattern() const { return m_pattern; }
  51     const UString& flags() const { return m_flags; }
  52
  53     bool isValid() const { return !m_constructionError; }
  54     const char* errorMessage() const { return m_constructionError; }
  55
  56     int match(const UString&, int offset, OwnArrayPtr<int>* ovector = 0);
  57     unsigned numSubpatterns() const { return m_numSubpatterns; }
  58
  59   private:
  60     void compile();
  61
  62     // Data supplied by caller.
  63     UString m_pattern; // FIXME: Just decompile m_regExp instead of storing this.
  64     UString m_flags; // FIXME: Just decompile m_regExp instead of storing this.
  65     int m_flagBits;
  66
  67     // Data supplied by PCRE.
  68     JSRegExp* m_regExp;
  69     const char* m_constructionError;
  70     unsigned m_numSubpatterns;
  71   };
  72
  73 } // namespace
  74
  75 #endif