blob: a2694b28ea49fd157fee7f9ef9149c63b2ee0298 [file] [log] [blame]
/*
* Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef UnicodeRangeSet_h
#define UnicodeRangeSet_h
#include "platform/PlatformExport.h"
#include "wtf/Allocator.h"
#include "wtf/RefCounted.h"
#include "wtf/Vector.h"
#include "wtf/text/CharacterNames.h"
#include "wtf/text/Unicode.h"
#include "wtf/text/WTFString.h"
namespace blink {
struct PLATFORM_EXPORT UnicodeRange final {
DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
UnicodeRange(UChar32 from, UChar32 to) : m_from(from), m_to(to) {}
UChar32 from() const { return m_from; }
UChar32 to() const { return m_to; }
bool contains(UChar32 c) const { return m_from <= c && c <= m_to; }
bool operator<(const UnicodeRange& other) const {
return m_from < other.m_from;
}
bool operator<(UChar32 c) const { return m_to < c; }
bool operator==(const UnicodeRange& other) const {
return other.m_from == m_from && other.m_to == m_to;
};
private:
UChar32 m_from;
UChar32 m_to;
};
class PLATFORM_EXPORT UnicodeRangeSet : public RefCounted<UnicodeRangeSet> {
public:
explicit UnicodeRangeSet(const Vector<UnicodeRange>&);
UnicodeRangeSet(){};
bool contains(UChar32) const;
bool intersectsWith(const String&) const;
bool isEntireRange() const { return m_ranges.isEmpty(); }
size_t size() const { return m_ranges.size(); }
const UnicodeRange& rangeAt(size_t i) const { return m_ranges[i]; }
bool operator==(const UnicodeRangeSet& other) const;
private:
Vector<UnicodeRange> m_ranges; // If empty, represents the whole code space.
};
} // namespace blink
#endif