1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
|
/*
* Copyright (C) 2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
* Copyright (C) 2009 - 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef CSSParser_h
#define CSSParser_h
#include "AtomicString.h"
#include "Color.h"
#include "CSSParserValues.h"
#include "CSSSelectorList.h"
#include "MediaQuery.h"
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/Vector.h>
namespace WebCore {
class CSSMutableStyleDeclaration;
class CSSPrimitiveValue;
class CSSProperty;
class CSSRule;
class CSSRuleList;
class CSSSelector;
class CSSStyleRule;
class CSSStyleSheet;
class CSSValue;
class CSSValueList;
class CSSVariablesDeclaration;
class Document;
class MediaList;
class MediaQueryExp;
class StyleBase;
class StyleList;
class WebKitCSSKeyframeRule;
class WebKitCSSKeyframesRule;
class CSSParser {
public:
typedef HashMap<CSSStyleRule*, std::pair<unsigned, unsigned> > StyleRuleRanges;
CSSParser(bool strictParsing = true);
~CSSParser();
void parseSheet(CSSStyleSheet*, const String&, int startLineNumber = 0, StyleRuleRanges* ruleRangeMap = 0);
PassRefPtr<CSSRule> parseRule(CSSStyleSheet*, const String&);
PassRefPtr<CSSRule> parseKeyframeRule(CSSStyleSheet*, const String&);
bool parseValue(CSSMutableStyleDeclaration*, int propId, const String&, bool important);
static bool parseColor(RGBA32& color, const String&, bool strict = false);
bool parseColor(CSSMutableStyleDeclaration*, const String&);
bool parseDeclaration(CSSMutableStyleDeclaration*, const String&);
bool parseMediaQuery(MediaList*, const String&);
Document* document() const;
void addProperty(int propId, PassRefPtr<CSSValue>, bool important);
void rollbackLastProperties(int num);
bool hasProperties() const { return m_numParsedProperties > 0; }
bool parseValue(int propId, bool important);
bool parseShorthand(int propId, const int* properties, int numProperties, bool important);
bool parse4Values(int propId, const int* properties, bool important);
bool parseContent(int propId, bool important);
PassRefPtr<CSSValue> parseAttr(CSSParserValueList* args);
PassRefPtr<CSSValue> parseBackgroundColor();
bool parseFillImage(RefPtr<CSSValue>&);
PassRefPtr<CSSValue> parseFillPositionXY(bool& xFound, bool& yFound);
void parseFillPosition(RefPtr<CSSValue>&, RefPtr<CSSValue>&);
void parseFillRepeat(RefPtr<CSSValue>&, RefPtr<CSSValue>&);
PassRefPtr<CSSValue> parseFillSize(int propId, bool &allowComma);
bool parseFillProperty(int propId, int& propId1, int& propId2, RefPtr<CSSValue>&, RefPtr<CSSValue>&);
bool parseFillShorthand(int propId, const int* properties, int numProperties, bool important);
void addFillValue(RefPtr<CSSValue>& lval, PassRefPtr<CSSValue> rval);
void addAnimationValue(RefPtr<CSSValue>& lval, PassRefPtr<CSSValue> rval);
PassRefPtr<CSSValue> parseAnimationDelay();
PassRefPtr<CSSValue> parseAnimationDirection();
PassRefPtr<CSSValue> parseAnimationDuration();
PassRefPtr<CSSValue> parseAnimationFillMode();
PassRefPtr<CSSValue> parseAnimationIterationCount();
PassRefPtr<CSSValue> parseAnimationName();
PassRefPtr<CSSValue> parseAnimationPlayState();
PassRefPtr<CSSValue> parseAnimationProperty();
PassRefPtr<CSSValue> parseAnimationTimingFunction();
void parseTransformOriginShorthand(RefPtr<CSSValue>&, RefPtr<CSSValue>&, RefPtr<CSSValue>&);
bool parseTimingFunctionValue(CSSParserValueList*& args, double& result);
bool parseAnimationProperty(int propId, RefPtr<CSSValue>&);
bool parseTransitionShorthand(bool important);
bool parseAnimationShorthand(bool important);
bool parseDashboardRegions(int propId, bool important);
bool parseShape(int propId, bool important);
bool parseFont(bool important);
PassRefPtr<CSSValueList> parseFontFamily();
bool parseCounter(int propId, int defaultValue, bool important);
PassRefPtr<CSSValue> parseCounterContent(CSSParserValueList* args, bool counters);
bool parseColorParameters(CSSParserValue*, int* colorValues, bool parseAlpha);
bool parseHSLParameters(CSSParserValue*, double* colorValues, bool parseAlpha);
PassRefPtr<CSSPrimitiveValue> parseColor(CSSParserValue* = 0);
bool parseColorFromValue(CSSParserValue*, RGBA32&);
void parseSelector(const String&, Document* doc, CSSSelectorList&);
static bool parseColor(const String&, RGBA32& rgb, bool strict);
bool parseFontStyle(bool important);
bool parseFontVariant(bool important);
bool parseFontWeight(bool important);
bool parseFontFaceSrc();
bool parseFontFaceUnicodeRange();
#if ENABLE(SVG)
bool parseSVGValue(int propId, bool important);
PassRefPtr<CSSValue> parseSVGPaint();
PassRefPtr<CSSValue> parseSVGColor();
PassRefPtr<CSSValue> parseSVGStrokeDasharray();
#endif
#if ENABLE(WCSS)
PassRefPtr<CSSValue> parseWCSSInputProperty();
#endif
// CSS3 Parsing Routines (for properties specific to CSS3)
bool parseShadow(int propId, bool important);
bool parseBorderImage(int propId, bool important, RefPtr<CSSValue>&);
bool parseBorderRadius(int propId, bool important);
bool parseReflect(int propId, bool important);
// Image generators
bool parseCanvas(RefPtr<CSSValue>&);
bool parseGradient(RefPtr<CSSValue>&);
PassRefPtr<CSSValueList> parseTransform();
bool parseTransformOrigin(int propId, int& propId1, int& propId2, int& propId3, RefPtr<CSSValue>&, RefPtr<CSSValue>&, RefPtr<CSSValue>&);
bool parsePerspectiveOrigin(int propId, int& propId1, int& propId2, RefPtr<CSSValue>&, RefPtr<CSSValue>&);
bool parseVariable(CSSVariablesDeclaration*, const String& variableName, const String& variableValue);
void parsePropertyWithResolvedVariables(int propId, bool important, CSSMutableStyleDeclaration*, CSSParserValueList*);
int yyparse();
CSSSelector* createFloatingSelector();
CSSSelector* sinkFloatingSelector(CSSSelector*);
CSSParserValueList* createFloatingValueList();
CSSParserValueList* sinkFloatingValueList(CSSParserValueList*);
CSSParserFunction* createFloatingFunction();
CSSParserFunction* sinkFloatingFunction(CSSParserFunction*);
CSSParserValue& sinkFloatingValue(CSSParserValue&);
MediaList* createMediaList();
CSSRule* createCharsetRule(const CSSParserString&);
CSSRule* createImportRule(const CSSParserString&, MediaList*);
WebKitCSSKeyframeRule* createKeyframeRule(CSSParserValueList*);
WebKitCSSKeyframesRule* createKeyframesRule();
CSSRule* createMediaRule(MediaList*, CSSRuleList*);
CSSRuleList* createRuleList();
CSSRule* createStyleRule(Vector<CSSSelector*>* selectors);
CSSRule* createFontFaceRule();
CSSRule* createVariablesRule(MediaList*, bool variablesKeyword);
CSSRule* createPageRule(CSSSelector* pageSelector);
CSSRule* createMarginAtRule(CSSSelector::MarginBoxType marginBox);
void startDeclarationsForMarginBox();
void endDeclarationsForMarginBox();
MediaQueryExp* createFloatingMediaQueryExp(const AtomicString&, CSSParserValueList*);
MediaQueryExp* sinkFloatingMediaQueryExp(MediaQueryExp*);
Vector<MediaQueryExp*>* createFloatingMediaQueryExpList();
Vector<MediaQueryExp*>* sinkFloatingMediaQueryExpList(Vector<MediaQueryExp*>*);
MediaQuery* createFloatingMediaQuery(MediaQuery::Restrictor, const String&, Vector<MediaQueryExp*>*);
MediaQuery* createFloatingMediaQuery(Vector<MediaQueryExp*>*);
MediaQuery* sinkFloatingMediaQuery(MediaQuery*);
void addNamespace(const AtomicString& prefix, const AtomicString& uri);
bool addVariable(const CSSParserString&, CSSParserValueList*);
bool addVariableDeclarationBlock(const CSSParserString&);
bool checkForVariables(CSSParserValueList*);
void addUnresolvedProperty(int propId, bool important);
void invalidBlockHit();
Vector<CSSSelector*>* reusableSelectorVector() { return &m_reusableSelectorVector; }
void updateLastSelectorLineAndPosition();
void clearProperties();
bool m_strict;
bool m_important;
int m_id;
CSSStyleSheet* m_styleSheet;
RefPtr<CSSRule> m_rule;
RefPtr<CSSRule> m_keyframe;
MediaQuery* m_mediaQuery;
CSSParserValueList* m_valueList;
CSSProperty** m_parsedProperties;
CSSSelectorList* m_selectorListForParseSelector;
unsigned m_numParsedProperties;
unsigned m_maxParsedProperties;
unsigned m_numParsedPropertiesBeforeMarginBox;
int m_inParseShorthand;
int m_currentShorthand;
bool m_implicitShorthand;
bool m_hasFontFaceOnlyValues;
bool m_hadSyntacticallyValidCSSRule;
Vector<String> m_variableNames;
Vector<RefPtr<CSSValue> > m_variableValues;
AtomicString m_defaultNamespace;
// tokenizer methods and data
unsigned m_ruleBodyStartOffset;
unsigned m_ruleBodyEndOffset;
StyleRuleRanges* m_ruleRanges;
void markRuleBodyStart();
void markRuleBodyEnd();
void resetRuleBodyMarks() { m_ruleBodyStartOffset = m_ruleBodyEndOffset = 0; }
int lex(void* yylval);
int token() { return yyTok; }
UChar* text(int* length);
void countLines();
int lex();
private:
void recheckAtKeyword(const UChar* str, int len);
void setupParser(const char* prefix, const String&, const char* suffix);
bool inShorthand() const { return m_inParseShorthand; }
void checkForOrphanedUnits();
void clearVariables();
void deleteFontFaceOnlyValues();
enum SizeParameterType {
None,
Auto,
Length,
PageSize,
Orientation,
};
bool parsePage(int propId, bool important);
bool parseSize(int propId, bool important);
SizeParameterType parseSizeParameter(CSSValueList* parsedValues, CSSParserValue* value, SizeParameterType prevParamType);
UChar* m_data;
UChar* yytext;
UChar* yy_c_buf_p;
UChar yy_hold_char;
int yy_last_accepting_state;
UChar* yy_last_accepting_cpos;
int yyleng;
int yyTok;
int yy_start;
int m_lineNumber;
int m_lastSelectorLineNumber;
bool m_allowImportRules;
bool m_allowVariablesRules;
bool m_allowNamespaceDeclarations;
Vector<RefPtr<StyleBase> > m_parsedStyleObjects;
Vector<RefPtr<CSSRuleList> > m_parsedRuleLists;
HashSet<CSSSelector*> m_floatingSelectors;
HashSet<CSSParserValueList*> m_floatingValueLists;
HashSet<CSSParserFunction*> m_floatingFunctions;
MediaQuery* m_floatingMediaQuery;
MediaQueryExp* m_floatingMediaQueryExp;
Vector<MediaQueryExp*>* m_floatingMediaQueryExpList;
Vector<CSSSelector*> m_reusableSelectorVector;
// defines units allowed for a certain property, used in parseUnit
enum Units {
FUnknown = 0x0000,
FInteger = 0x0001,
FNumber = 0x0002, // Real Numbers
FPercent = 0x0004,
FLength = 0x0008,
FAngle = 0x0010,
FTime = 0x0020,
FFrequency = 0x0040,
FRelative = 0x0100,
FNonNeg = 0x0200
};
friend inline Units operator|(Units a, Units b)
{
return static_cast<Units>(static_cast<unsigned>(a) | static_cast<unsigned>(b));
}
static bool validUnit(CSSParserValue*, Units, bool strict);
friend class TransformOperationInfo;
};
int cssPropertyID(const CSSParserString&);
int cssPropertyID(const String&);
int cssValueKeywordID(const CSSParserString&);
class ShorthandScope : public FastAllocBase {
public:
ShorthandScope(CSSParser* parser, int propId) : m_parser(parser)
{
if (!(m_parser->m_inParseShorthand++))
m_parser->m_currentShorthand = propId;
}
~ShorthandScope()
{
if (!(--m_parser->m_inParseShorthand))
m_parser->m_currentShorthand = 0;
}
private:
CSSParser* m_parser;
};
String quoteCSSString(const String&);
String quoteCSSStringIfNeeded(const String&);
String quoteCSSURLIfNeeded(const String&);
} // namespace WebCore
#endif // CSSParser_h
|
