1/* 2 * Copyright (C) 2002, 2003 The Karbon Developers 3 * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org> 4 * Copyright (C) 2013 Apple Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22#ifndef SVGParserUtilities_h 23#define SVGParserUtilities_h 24 25#include "ParserUtilities.h" 26#include <wtf/HashSet.h> 27 28typedef std::pair<unsigned, unsigned> UnicodeRange; 29typedef Vector<UnicodeRange> UnicodeRanges; 30 31namespace WebCore { 32 33class FloatPoint; 34class FloatRect; 35class SVGPointList; 36 37template <typename CharacterType> 38bool parseSVGNumber(CharacterType* ptr, size_t length, double& number); 39bool parseNumber(const LChar*& ptr, const LChar* end, float& number, bool skip = true); 40bool parseNumber(const UChar*& ptr, const UChar* end, float& number, bool skip = true); 41bool parseNumberFromString(const String&, float& number, bool skip = true); 42bool parseNumberOptionalNumber(const String& s, float& h, float& v); 43bool parseArcFlag(const LChar*& ptr, const LChar* end, bool& flag); 44bool parseArcFlag(const UChar*& ptr, const UChar* end, bool& flag); 45bool parseRect(const String&, FloatRect&); 46 47template <typename CharacterType> 48bool parseFloatPoint(const CharacterType*& current, const CharacterType* end, FloatPoint&); 49template <typename CharacterType> 50bool parseFloatPoint2(const CharacterType*& current, const CharacterType* end, FloatPoint&, FloatPoint&); 51template <typename CharacterType> 52bool parseFloatPoint3(const CharacterType*& current, const CharacterType* end, FloatPoint&, FloatPoint&, FloatPoint&); 53 54// SVG allows several different whitespace characters: 55// http://www.w3.org/TR/SVG/paths.html#PathDataBNF 56template <typename CharacterType> 57inline bool isSVGSpace(CharacterType c) 58{ 59 return c == ' ' || c == '\t' || c == '\n' || c == '\r'; 60} 61 62template <typename CharacterType> 63inline bool skipOptionalSVGSpaces(const CharacterType*& ptr, const CharacterType* end) 64{ 65 while (ptr < end && isSVGSpace(*ptr)) 66 ptr++; 67 return ptr < end; 68} 69 70template <typename CharacterType> 71inline bool skipOptionalSVGSpacesOrDelimiter(const CharacterType*& ptr, const CharacterType* end, char delimiter = ',') 72{ 73 if (ptr < end && !isSVGSpace(*ptr) && *ptr != delimiter) 74 return false; 75 if (skipOptionalSVGSpaces(ptr, end)) { 76 if (ptr < end && *ptr == delimiter) { 77 ptr++; 78 skipOptionalSVGSpaces(ptr, end); 79 } 80 } 81 return ptr < end; 82} 83 84bool pointsListFromSVGData(SVGPointList& pointsList, const String& points); 85Vector<String> parseDelimitedString(const String& input, const char seperator); 86bool parseKerningUnicodeString(const String& input, UnicodeRanges&, HashSet<String>& stringList); 87bool parseGlyphName(const String& input, HashSet<String>& values); 88 89} // namespace WebCore 90 91#endif // SVGParserUtilities_h 92