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/html/parser/HTMLParserIdioms.h" 26 #include "core/svg/SVGTransform.h" 27 #include "platform/text/ParserUtilities.h" 28 #include "wtf/HashSet.h" 29 30 typedef pair<unsigned, unsigned> UnicodeRange; 31 typedef Vector<UnicodeRange> UnicodeRanges; 32 33 namespace blink { 34 35 class FloatPoint; 36 37 enum WhitespaceMode { 38 DisallowWhitespace = 0, 39 AllowLeadingWhitespace = 0x1, 40 AllowTrailingWhitespace = 0x2, 41 AllowLeadingAndTrailingWhitespace = AllowLeadingWhitespace | AllowTrailingWhitespace 42 }; 43 44 bool parseNumber(const LChar*& ptr, const LChar* end, float& number, WhitespaceMode = AllowLeadingAndTrailingWhitespace); 45 bool parseNumber(const UChar*& ptr, const UChar* end, float& number, WhitespaceMode = AllowLeadingAndTrailingWhitespace); 46 bool parseNumberOptionalNumber(const String& s, float& h, float& v); 47 bool parseNumberOrPercentage(const String& s, float& number); 48 bool parseArcFlag(const LChar*& ptr, const LChar* end, bool& flag); 49 bool parseArcFlag(const UChar*& ptr, const UChar* end, bool& flag); 50 51 template <typename CharType> 52 bool parseFloatPoint(const CharType*& current, const CharType* end, FloatPoint&); 53 template <typename CharType> 54 bool parseFloatPoint2(const CharType*& current, const CharType* end, FloatPoint&, FloatPoint&); 55 template <typename CharType> 56 bool parseFloatPoint3(const CharType*& current, const CharType* end, FloatPoint&, FloatPoint&, FloatPoint&); 57 58 template <typename CharType> 59 inline bool skipOptionalSVGSpaces(const CharType*& ptr, const CharType* end) 60 { 61 while (ptr < end && isHTMLSpace<CharType>(*ptr)) 62 ptr++; 63 return ptr < end; 64 } 65 66 template <typename CharType> 67 inline bool skipOptionalSVGSpacesOrDelimiter(const CharType*& ptr, const CharType* end, char delimiter = ',') 68 { 69 if (ptr < end && !isHTMLSpace<CharType>(*ptr) && *ptr != delimiter) 70 return false; 71 if (skipOptionalSVGSpaces(ptr, end)) { 72 if (ptr < end && *ptr == delimiter) { 73 ptr++; 74 skipOptionalSVGSpaces(ptr, end); 75 } 76 } 77 return ptr < end; 78 } 79 80 #if ENABLE(SVG_FONTS) 81 Vector<String> parseDelimitedString(const String& input, const char seperator); 82 bool parseKerningUnicodeString(const String& input, UnicodeRanges&, HashSet<String>& stringList); 83 bool parseGlyphName(const String& input, HashSet<String>& values); 84 #endif 85 86 template<typename CharType> 87 bool parseAndSkipTransformType(const CharType*& ptr, const CharType* end, SVGTransformType&); 88 SVGTransformType parseTransformType(const String&); 89 90 } // namespace blink 91 92 #endif // SVGParserUtilities_h 93
