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/*
* Copyright (C) 2022 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 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 INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* 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.
*/
#pragma once
#include <wtf/text/AtomString.h>
#include <wtf/text/StringParsingBuffer.h>
namespace WebCore {
struct CSSCustomPropertySyntax {
enum class Type : uint8_t {
Length,
LengthPercentage,
Percentage,
Integer,
Number,
Angle,
Time,
Resolution,
Color,
Image,
URL,
CustomIdent,
TransformFunction,
TransformList,
Unknown
};
enum class Multiplier : uint8_t {
Single,
SpaceList,
CommaList
};
struct Component {
Type type;
Multiplier multiplier { Multiplier::Single };
AtomString ident { };
};
using Definition = Vector<Component>;
Definition definition;
bool isUniversal() const { return definition.isEmpty(); }
static std::optional<CSSCustomPropertySyntax> parse(StringView);
static CSSCustomPropertySyntax universal() { return { }; }
private:
template<typename CharacterType> static std::optional<Component> parseComponent(StringParsingBuffer<CharacterType>);
static Type typeForTypeName(StringView);
};
}
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