1 /* 2 * Copyright (C) 2002, 2003 The Karbon Developers 3 * Copyright (C) 2006, 2007 Rob Buis <buis (at) 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/platform/text/ParserUtilities.h" 26 #include "wtf/HashSet.h" 27 28 typedef pair<unsigned, unsigned> UnicodeRange; 29 typedef Vector<UnicodeRange> UnicodeRanges; 30 31 namespace WebCore { 32 33 class FloatPoint; 34 class FloatRect; 35 class SVGPointList; 36 37 template <typename CharType> 38 bool parseSVGNumber(CharType* ptr, size_t length, double& number); 39 bool parseNumber(const LChar*& ptr, const LChar* end, float& number, bool skip = true); 40 bool parseNumber(const UChar*& ptr, const UChar* end, float& number, bool skip = true); 41 bool parseNumberFromString(const String&, float& number, bool skip = true); 42 bool parseNumberOptionalNumber(const String& s, float& h, float& v); 43 bool parseArcFlag(const LChar*& ptr, const LChar* end, bool& flag); 44 bool parseArcFlag(const UChar*& ptr, const UChar* end, bool& flag); 45 bool parseRect(const String&, FloatRect&); 46 47 template <typename CharType> 48 bool parseFloatPoint(const CharType*& current, const CharType* end, FloatPoint&); 49 template <typename CharType> 50 bool parseFloatPoint2(const CharType*& current, const CharType* end, FloatPoint&, FloatPoint&); 51 template <typename CharType> 52 bool parseFloatPoint3(const CharType*& current, const CharType* end, FloatPoint&, FloatPoint&, FloatPoint&); 53 54 // SVG allows several different whitespace characters: 55 // http://www.w3.org/TR/SVG/paths.html#PathDataBNF 56 template <typename CharType> 57 inline bool isSVGSpace(CharType c) 58 { 59 return c == ' ' || c == '\t' || c == '\n' || c == '\r'; 60 } 61 62 template <typename CharType> 63 inline bool skipOptionalSVGSpaces(const CharType*& ptr, const CharType* end) 64 { 65 while (ptr < end && isSVGSpace(*ptr)) 66 ptr++; 67 return ptr < end; 68 } 69 70 template <typename CharType> 71 inline bool skipOptionalSVGSpacesOrDelimiter(const CharType*& ptr, const CharType* 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 84 bool pointsListFromSVGData(SVGPointList& pointsList, const String& points); 85 Vector<String> parseDelimitedString(const String& input, const char seperator); 86 bool parseKerningUnicodeString(const String& input, UnicodeRanges&, HashSet<String>& stringList); 87 bool parseGlyphName(const String& input, HashSet<String>& values); 88 89 } // namespace WebCore 90 91 #endif // SVGParserUtilities_h 92
