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 "core/svg/SVGTransform.h" 26#include "platform/text/ParserUtilities.h" 27#include "wtf/HashSet.h" 28 29typedef pair<unsigned, unsigned> UnicodeRange; 30typedef Vector<UnicodeRange> UnicodeRanges; 31 32namespace WebCore { 33 34class FloatPoint; 35class FloatRect; 36class SVGPointList; 37class SVGTransformList; 38 39template <typename CharType> 40bool parseSVGNumber(CharType* ptr, size_t length, double& number); 41bool parseNumber(const LChar*& ptr, const LChar* end, float& number, bool skip = true); 42bool parseNumber(const UChar*& ptr, const UChar* end, float& number, bool skip = true); 43bool parseNumberFromString(const String&, float& number, bool skip = true); 44bool parseNumberOptionalNumber(const String& s, float& h, float& v); 45bool parseArcFlag(const LChar*& ptr, const LChar* end, bool& flag); 46bool parseArcFlag(const UChar*& ptr, const UChar* end, bool& flag); 47bool parseRect(const String&, FloatRect&); 48 49template <typename CharType> 50bool parseFloatPoint(const CharType*& current, const CharType* end, FloatPoint&); 51template <typename CharType> 52bool parseFloatPoint2(const CharType*& current, const CharType* end, FloatPoint&, FloatPoint&); 53template <typename CharType> 54bool parseFloatPoint3(const CharType*& current, const CharType* end, FloatPoint&, FloatPoint&, FloatPoint&); 55 56// SVG allows several different whitespace characters: 57// http://www.w3.org/TR/SVG/paths.html#PathDataBNF 58template <typename CharType> 59inline bool isSVGSpace(CharType c) 60{ 61 return c == ' ' || c == '\t' || c == '\n' || c == '\r'; 62} 63 64template <typename CharType> 65inline bool skipOptionalSVGSpaces(const CharType*& ptr, const CharType* end) 66{ 67 while (ptr < end && isSVGSpace(*ptr)) 68 ptr++; 69 return ptr < end; 70} 71 72template <typename CharType> 73inline bool skipOptionalSVGSpacesOrDelimiter(const CharType*& ptr, const CharType* end, char delimiter = ',') 74{ 75 if (ptr < end && !isSVGSpace(*ptr) && *ptr != delimiter) 76 return false; 77 if (skipOptionalSVGSpaces(ptr, end)) { 78 if (ptr < end && *ptr == delimiter) { 79 ptr++; 80 skipOptionalSVGSpaces(ptr, end); 81 } 82 } 83 return ptr < end; 84} 85 86bool pointsListFromSVGData(SVGPointList& pointsList, const String& points); 87Vector<String> parseDelimitedString(const String& input, const char seperator); 88bool parseKerningUnicodeString(const String& input, UnicodeRanges&, HashSet<String>& stringList); 89bool parseGlyphName(const String& input, HashSet<String>& values); 90 91enum TransformParsingMode { 92 ClearList, 93 DoNotClearList 94}; 95 96bool parseTransformAttribute(SVGTransformList&, const LChar*& ptr, const LChar* end, TransformParsingMode = ClearList); 97bool parseTransformAttribute(SVGTransformList&, const UChar*& ptr, const UChar* end, TransformParsingMode = ClearList); 98 99bool parseTransformValue(unsigned type, const LChar*& ptr, const LChar* end, SVGTransform&); 100bool parseTransformValue(unsigned type, const UChar*& ptr, const UChar* end, SVGTransform&); 101 102SVGTransform::SVGTransformType parseTransformType(const String&); 103 104} // namespace WebCore 105 106#endif // SVGParserUtilities_h 107