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