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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
* Copyright (C) 2016 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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.
*/
#pragma once
#include "CSSParserContext.h"
#include "CSSValueKeywords.h"
#include "CSSWideKeyword.h"
#include <wtf/ASCIICType.h>
namespace WebCore {
// Space characters as defined by the CSS specification.
// http://www.w3.org/TR/css3-syntax/#whitespace
template<typename CharacterType>
inline bool isCSSSpace(CharacterType c)
{
return c == ' ' || c == '\t' || c == '\n';
}
// http://dev.w3.org/csswg/css-syntax/#name-start-code-point
template <typename CharacterType>
bool isNameStartCodePoint(CharacterType c)
{
return isASCIIAlpha(c) || c == '_' || !isASCII(c);
}
// http://dev.w3.org/csswg/css-syntax/#name-code-point
template <typename CharacterType>
bool isNameCodePoint(CharacterType c)
{
return isNameStartCodePoint(c) || isASCIIDigit(c) || c == '-';
}
inline bool isValidCustomIdentifier(CSSValueID valueID)
{
// "default" is obsolete as a CSS-wide keyword but is still not allowed as a custom identifier.
return !isCSSWideKeyword(valueID) && valueID != CSSValueDefault;
}
// https://drafts.csswg.org/css-conditional-5/#propdef-container-name
inline bool isValidContainerNameIdentifier(CSSValueID valueID)
{
switch (valueID) {
case CSSValueNone:
case CSSValueAnd:
case CSSValueOr:
case CSSValueNot:
return false;
default:
return isValidCustomIdentifier(valueID);
}
}
} // namespace WebCore
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