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/*
* Copyright (C) 2016-2023 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.
*/
#include "config.h"
#include "CSSPropertyParserConsumer+Speech.h"
#include "CSSParserContext.h"
#include "CSSParserTokenRange.h"
#include "CSSPrimitiveValue.h"
#include "CSSPropertyParserConsumer+Ident.h"
#include "CSSValueKeywords.h"
#include "CSSValueList.h"
namespace WebCore {
namespace CSSPropertyParserHelpers {
RefPtr<CSSValue> consumeSpeakAs(CSSParserTokenRange& range, const CSSParserContext&)
{
// <'speak-as'> = normal | spell-out || digits || [ literal-punctuation | no-punctuation ]
// https://drafts.csswg.org/css-speech-1/#propdef-speak-as
if (range.peek().id() == CSSValueNone)
return consumeIdent(range);
CSSValueListBuilder list;
bool seenNormal = false;
bool seenSpellOut = false;
bool seenLiteralPunctuation = false;
bool seenNoPunctuation = false;
while (!range.atEnd()) {
CSSValueID valueID = range.peek().id();
if ((valueID == CSSValueNormal && seenSpellOut)
|| (valueID == CSSValueSpellOut && seenNormal)
|| (valueID == CSSValueLiteralPunctuation && seenNoPunctuation)
|| (valueID == CSSValueNoPunctuation && seenLiteralPunctuation))
return nullptr;
auto ident = consumeIdent<CSSValueNormal, CSSValueSpellOut, CSSValueDigits, CSSValueLiteralPunctuation, CSSValueNoPunctuation>(range);
if (!ident)
return nullptr;
switch (valueID) {
case CSSValueNormal:
seenNormal = true;
break;
case CSSValueSpellOut:
seenSpellOut = true;
break;
case CSSValueLiteralPunctuation:
seenLiteralPunctuation = true;
break;
case CSSValueNoPunctuation:
seenNoPunctuation = true;
break;
default:
break;
}
list.append(ident.releaseNonNull());
}
if (list.isEmpty())
return nullptr;
return CSSValueList::createSpaceSeparated(WTFMove(list));
}
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
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