| /* |
| * 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/platform_export.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h" |
| #include "third_party/blink/renderer/platform/wtf/ref_counted.h" |
| #include "third_party/blink/renderer/platform/wtf/text/character_names.h" |
| #include "third_party/blink/renderer/platform/wtf/text/unicode.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.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 RefCounted<UnicodeRangeSet> { |
| USING_FAST_MALLOC(UnicodeRangeSet); |
| |
| public: |
| explicit UnicodeRangeSet(const Vector<UnicodeRange>&); |
| UnicodeRangeSet() = default; |
| |
| bool Contains(UChar32) const; |
| bool IntersectsWith(const String&) const; |
| bool IsEntireRange() const { return ranges_.IsEmpty(); } |
| 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: |
| Vector<UnicodeRange> ranges_; // If empty, represents the whole code space. |
| }; |
| |
| } // namespace blink |
| |
| #endif |