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/*
* Copyright (C) 2002, 2003 The Karbon Developers
* Copyright (C) 2006, 2007 Rob Buis <buis@kde.org>
* Copyright (C) 2013 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef SVGParserUtilities_h
#define SVGParserUtilities_h
#include "ParserUtilities.h"
#include <wtf/HashSet.h>
typedef std::pair<unsigned, unsigned> UnicodeRange;
typedef Vector<UnicodeRange> UnicodeRanges;
namespace WebCore {
class FloatPoint;
class FloatRect;
class SVGPointList;
template <typename CharacterType>
bool parseSVGNumber(CharacterType* ptr, size_t length, double& number);
bool parseNumber(const LChar*& ptr, const LChar* end, float& number, bool skip = true);
bool parseNumber(const UChar*& ptr, const UChar* end, float& number, bool skip = true);
bool parseNumberFromString(const String&, float& number, bool skip = true);
bool parseNumberOptionalNumber(const String& s, float& h, float& v);
bool parseArcFlag(const LChar*& ptr, const LChar* end, bool& flag);
bool parseArcFlag(const UChar*& ptr, const UChar* end, bool& flag);
bool parseRect(const String&, FloatRect&);
template <typename CharacterType>
bool parseFloatPoint(const CharacterType*& current, const CharacterType* end, FloatPoint&);
template <typename CharacterType>
bool parseFloatPoint2(const CharacterType*& current, const CharacterType* end, FloatPoint&, FloatPoint&);
template <typename CharacterType>
bool parseFloatPoint3(const CharacterType*& current, const CharacterType* end, FloatPoint&, FloatPoint&, FloatPoint&);
// SVG allows several different whitespace characters:
// http://www.w3.org/TR/SVG/paths.html#PathDataBNF
template <typename CharacterType>
inline bool isSVGSpace(CharacterType c)
{
return c == ' ' || c == '\t' || c == '\n' || c == '\r';
}
template <typename CharacterType>
inline bool skipOptionalSVGSpaces(const CharacterType*& ptr, const CharacterType* end)
{
while (ptr < end && isSVGSpace(*ptr))
ptr++;
return ptr < end;
}
template <typename CharacterType>
inline bool skipOptionalSVGSpacesOrDelimiter(const CharacterType*& ptr, const CharacterType* end, char delimiter = ',')
{
if (ptr < end && !isSVGSpace(*ptr) && *ptr != delimiter)
return false;
if (skipOptionalSVGSpaces(ptr, end)) {
if (ptr < end && *ptr == delimiter) {
ptr++;
skipOptionalSVGSpaces(ptr, end);
}
}
return ptr < end;
}
bool pointsListFromSVGData(SVGPointList& pointsList, const String& points);
Vector<String> parseDelimitedString(const String& input, const char seperator);
bool parseKerningUnicodeString(const String& input, UnicodeRanges&, HashSet<String>& stringList);
bool parseGlyphName(const String& input, HashSet<String>& values);
} // namespace WebCore
#endif // SVGParserUtilities_h
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