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/*
* Copyright (C) 2024 Samuel Weinig <sam@webkit.org>
*
* 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 "CSSCalcSymbolsAllowed.h"
#include "CSSPrimitiveNumericRange.h"
#include "CSSPropertyParserOptions.h"
#include <optional>
namespace WebCore {
namespace Calculation {
enum class Category : uint8_t;
}
class CSSParserTokenRange;
struct CSSParserContext;
enum CSSValueID : uint16_t;
namespace CSSCalc {
struct SimplificationOptions;
struct Tree;
struct ParserOptions {
// `category` represents the context in which the parse is taking place.
Calculation::Category category;
// `range` represents the allowed numeric range for the calculated result.
CSS::Range range;
// `allowedSymbols` contains additional symbols that can be used in the calculation. These will need to be resolved before the calculation can be resolved.
CSSCalcSymbolsAllowed allowedSymbols;
// `propertyOptions` contains options about the specific property the calc() is intended to be used with.
CSSPropertyParserOptions propertyOptions;
};
// Parses and simplifies the provided `CSSParserTokenRange` into a CSSCalc::Tree. Returns `std::nullopt` on failure.
std::optional<Tree> parseAndSimplify(CSSParserTokenRange&, const CSSParserContext&, const ParserOptions&, const SimplificationOptions&);
// Returns whether the provided `CSSValueID` is one of the functions that should be parsed as a `calc()`.
bool isCalcFunction(CSSValueID function, const CSSParserContext&);
} // namespace CSSCalc
} // namespace WebCore
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