1 /*

     2  * Copyright (C) 2007, 2008, 2010 Apple Inc. All rights reserved.

     3  *

     4  * This library is free software; you can redistribute it and/or

     5  * modify it under the terms of the GNU Library General Public

     6  * License as published by the Free Software Foundation; either

     7  * version 2 of the License, or (at your option) any later version.

     8  *

     9  * This library is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    12  * Library General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU Library General Public License

    15  * along with this library; see the file COPYING.LIB.  If not, write to

    16  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    17  * Boston, MA 02111-1307, USA.

    18  *

    19  */

    20 

    21 #ifndef SpaceSplitString_h

    22 #define SpaceSplitString_h

    23 

    24 #include "AtomicString.h"

    25 #include <wtf/OwnPtr.h>

    26 #include <wtf/PassOwnPtr.h>

    27 #include <wtf/Vector.h>

    28 

    29 namespace WebCore {

    30 

    31     class SpaceSplitStringData : public Noncopyable {

    32     public:

    33         SpaceSplitStringData(const String& string, bool shouldFoldCase)

    34             : m_string(string), m_shouldFoldCase(shouldFoldCase), m_createdVector(false)

    35         {

    36         }

    37 

    38         bool contains(const AtomicString& string)

    39         {

    40             ensureVector();

    41             size_t size = m_vector.size();

    42             for (size_t i = 0; i < size; ++i) {

    43                 if (m_vector[i] == string)

    44                     return true;

    45             }

    46             return false;

    47         }

    48 

    49         bool containsAll(SpaceSplitStringData&);

    50 

    51         size_t size() { ensureVector(); return m_vector.size(); }

    52         const AtomicString& operator[](size_t i) { ensureVector(); ASSERT(i < size()); return m_vector[i]; }

    53 

    54     private:

    55         void ensureVector() { if (!m_createdVector) createVector(); }

    56         void createVector();

    57 

    58         typedef Vector<AtomicString, 8> StringVector;

    59         String m_string;

    60         StringVector m_vector;

    61         bool m_shouldFoldCase;

    62         bool m_createdVector;

    63     };

    64 

    65     class SpaceSplitString {

    66     public:

    67         SpaceSplitString() { }

    68         SpaceSplitString(const String& string, bool shouldFoldCase) : m_data(adoptPtr(new SpaceSplitStringData(string, shouldFoldCase))) { }

    69 

    70         void set(const String& string, bool shouldFoldCase) { m_data = adoptPtr(new SpaceSplitStringData(string, shouldFoldCase)); }

    71         void clear() { m_data.clear(); }

    72 

    73         bool contains(const AtomicString& string) const { return m_data && m_data->contains(string); }

    74         bool containsAll(const SpaceSplitString& names) const { return !names.m_data || (m_data && m_data->containsAll(*names.m_data)); }

    75 

    76         size_t size() const { return m_data ? m_data->size() : 0; }

    77         const AtomicString& operator[](size_t i) const { ASSERT(i < size()); return (*m_data)[i]; }

    78 

    79     private:

    80         OwnPtr<SpaceSplitStringData> m_data;

    81     };

    82 

    83     inline bool isClassWhitespace(UChar c)

    84     {

    85         return c == ' ' || c == '\r' || c == '\n' || c == '\t' || c == '\f';

    86     }

    87 

    88 } // namespace WebCore

    89 

    90 #endif // SpaceSplitString_h