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/*
* Copyright (C) 2024 Apple Inc. All rights reserved.
* 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 "CSSParserToken.h"
#include "CSSParserTokenRange.h"
#include "CSSPrimitiveValue.h"
#include "CSSValuePool.h"
#include <optional>
#include <wtf/RefPtr.h>
namespace WebCore {
namespace CSSPropertyParserHelpers {
// MARK: - Ident
std::optional<CSSValueID> consumeIdentRaw(CSSParserTokenRange&);
RefPtr<CSSPrimitiveValue> consumeIdent(CSSParserTokenRange&);
RefPtr<CSSPrimitiveValue> consumeIdentRange(CSSParserTokenRange&, CSSValueID lower, CSSValueID upper);
template<typename... emptyBaseCase> bool identMatches(CSSValueID)
{
return false;
}
template<CSSValueID head, CSSValueID... tail> bool identMatches(CSSValueID id)
{
return id == head || identMatches<tail...>(id);
}
template<CSSValueID... names> std::optional<CSSValueID> consumeIdentRaw(CSSParserTokenRange& range)
{
if (range.peek().type() != IdentToken || !identMatches<names...>(range.peek().id()))
return std::nullopt;
return range.consumeIncludingWhitespace().id();
}
template<CSSValueID... names> RefPtr<CSSPrimitiveValue> consumeIdent(CSSParserTokenRange& range)
{
if (range.peek().type() != IdentToken || !identMatches<names...>(range.peek().id()))
return nullptr;
return CSSPrimitiveValue::create(range.consumeIncludingWhitespace().id());
}
template<typename Predicate, typename... Args> std::optional<CSSValueID> consumeIdentRaw(CSSParserTokenRange& range, Predicate&& predicate, Args&&... args)
{
if (auto keyword = range.peek().id(); predicate(keyword, std::forward<Args>(args)...)) {
range.consumeIncludingWhitespace();
return keyword;
}
return std::nullopt;
}
template<typename Predicate, typename... Args> RefPtr<CSSPrimitiveValue> consumeIdent(CSSParserTokenRange& range, Predicate&& predicate, Args&&... args)
{
if (auto keyword = range.peek().id(); predicate(keyword, std::forward<Args>(args)...)) {
range.consumeIncludingWhitespace();
return CSSPrimitiveValue::create(keyword);
}
return nullptr;
}
template<typename Map>
std::optional<typename Map::ValueType> consumeIdentUsingMapping(CSSParserTokenRange& range, Map& map)
{
if (auto value = map.tryGet(range.peek().id())) {
range.consumeIncludingWhitespace();
return std::make_optional(*value);
}
return std::nullopt;
}
template<typename Map>
std::optional<typename Map::ValueType> peekIdentUsingMapping(CSSParserTokenRange& range, Map& map)
{
if (auto value = map.tryGet(range.peek().id()))
return std::make_optional(*value);
return std::nullopt;
}
// MARK: <custom-ident>
// https://drafts.csswg.org/css-values/#custom-idents
String consumeCustomIdentRaw(CSSParserTokenRange&, bool shouldLowercase = false);
RefPtr<CSSPrimitiveValue> consumeCustomIdent(CSSParserTokenRange&, bool shouldLowercase = false);
// MARK: <dashed-ident>
// https://drafts.csswg.org/css-values/#dashed-idents
String consumeDashedIdentRaw(CSSParserTokenRange&, bool shouldLowercase = false);
RefPtr<CSSPrimitiveValue> consumeDashedIdent(CSSParserTokenRange&, bool shouldLowercase = false);
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
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