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/*
* 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_UNICODE_RANGE_SET_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_UNICODE_RANGE_SET_H_
#include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/text/character_names.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_uchar.h"
namespace blink {
struct PLATFORM_EXPORT UnicodeRange final {
DISALLOW_NEW();
UnicodeRange(UChar32 from, UChar32 to) : from_(from), to_(to) {}
UChar32 From() const { return from_; }
UChar32 To() const { return to_; }
bool Contains(UChar32 c) const { return from_ <= c && c <= to_; }
bool operator<(const UnicodeRange& other) const {
return from_ < other.from_;
}
bool operator<(UChar32 c) const { return to_ < c; }
bool operator==(const UnicodeRange& other) const {
return other.from_ == from_ && other.to_ == to_;
}
private:
UChar32 from_;
UChar32 to_;
};
class PLATFORM_EXPORT UnicodeRangeSet
: public GarbageCollected<UnicodeRangeSet> {
public:
explicit UnicodeRangeSet(HeapVector<UnicodeRange>&&);
UnicodeRangeSet() = default;
void Trace(Visitor* visitor) const { visitor->Trace(ranges_); }
bool Contains(UChar32) const;
bool IntersectsWith(const String&) const;
bool IsEntireRange() const { return ranges_.empty(); }
wtf_size_t size() const { return ranges_.size(); }
const UnicodeRange& RangeAt(wtf_size_t i) const { return ranges_[i]; }
bool operator==(const UnicodeRangeSet& other) const;
private:
HeapVector<UnicodeRange>
ranges_; // If empty, represents the whole code space.
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_UNICODE_RANGE_SET_H_
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