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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 part of csslib.parser; | |
6 | |
7 // TODO(terry): Need to be consistent with tokens either they're ASCII tokens | |
8 // e.g., ASTERISK or they're CSS e.g., PSEUDO, COMBINATOR_*. | |
9 class TokenKind { | |
10 // Common shared tokens used in TokenizerBase. | |
11 static const int UNUSED = 0; // Unused place holder... | |
12 static const int END_OF_FILE = 1; // EOF | |
13 static const int LPAREN = 2; // ( | |
14 static const int RPAREN = 3; // ) | |
15 static const int LBRACK = 4; // [ | |
16 static const int RBRACK = 5; // ] | |
17 static const int LBRACE = 6; // { | |
18 static const int RBRACE = 7; // } | |
19 static const int DOT = 8; // . | |
20 static const int SEMICOLON = 9; // ; | |
21 | |
22 // Unique tokens for CSS. | |
23 static const int AT = 10; // @ | |
24 static const int HASH = 11; // # | |
25 static const int PLUS = 12; // + | |
26 static const int GREATER = 13; // > | |
27 static const int TILDE = 14; // ~ | |
28 static const int ASTERISK = 15; // * | |
29 static const int NAMESPACE = 16; // | | |
30 static const int COLON = 17; // : | |
31 static const int PRIVATE_NAME = 18; // _ prefix private class or id | |
32 static const int COMMA = 19; // , | |
33 static const int SPACE = 20; | |
34 static const int TAB = 21; // /t | |
35 static const int NEWLINE = 22; // /n | |
36 static const int RETURN = 23; // /r | |
37 static const int PERCENT = 24; // % | |
38 static const int SINGLE_QUOTE = 25; // ' | |
39 static const int DOUBLE_QUOTE = 26; // " | |
40 static const int SLASH = 27; // / | |
41 static const int EQUALS = 28; // = | |
42 static const int CARET = 30; // ^ | |
43 static const int DOLLAR = 31; // $ | |
44 static const int LESS = 32; // < | |
45 static const int BANG = 33; // ! | |
46 static const int MINUS = 34; // - | |
47 static const int BACKSLASH = 35; // \ | |
48 static const int AMPERSAND = 36; // & | |
49 | |
50 // WARNING: Tokens from this point and above must have the corresponding ASCII | |
51 // character in the TokenChar list at the bottom of this file. The | |
52 // order of the above tokens should be the same order as TokenChar. | |
53 | |
54 /** [TokenKind] representing integer tokens. */ | |
55 static const int INTEGER = 60; | |
56 | |
57 /** [TokenKind] representing hex integer tokens. */ | |
58 static const int HEX_INTEGER = 61; | |
59 | |
60 /** [TokenKind] representing double tokens. */ | |
61 static const int DOUBLE = 62; | |
62 | |
63 /** [TokenKind] representing whitespace tokens. */ | |
64 static const int WHITESPACE = 63; | |
65 | |
66 /** [TokenKind] representing comment tokens. */ | |
67 static const int COMMENT = 64; | |
68 | |
69 /** [TokenKind] representing error tokens. */ | |
70 static const int ERROR = 65; | |
71 | |
72 /** [TokenKind] representing incomplete string tokens. */ | |
73 static const int INCOMPLETE_STRING = 66; | |
74 | |
75 /** [TokenKind] representing incomplete comment tokens. */ | |
76 static const int INCOMPLETE_COMMENT = 67; | |
77 | |
78 static const int VAR_DEFINITION = 400; // var-NNN-NNN | |
79 static const int VAR_USAGE = 401; // var(NNN-NNN [,default]) | |
80 | |
81 // Synthesized Tokens (no character associated with TOKEN). | |
82 static const int STRING = 500; | |
83 static const int STRING_PART = 501; | |
84 static const int NUMBER = 502; | |
85 static const int HEX_NUMBER = 503; | |
86 static const int HTML_COMMENT = 504; // <!-- | |
87 static const int IMPORTANT = 505; // !important | |
88 static const int CDATA_START = 506; // <![CDATA[ | |
89 static const int CDATA_END = 507; // ]]> | |
90 // U+uNumber[-U+uNumber] | |
91 // uNumber = 0..10FFFF | ?[?]* | |
92 static const int UNICODE_RANGE = 508; | |
93 static const int HEX_RANGE = 509; // ? in the hex range | |
94 static const int IDENTIFIER = 511; | |
95 | |
96 // Uniquely synthesized tokens for CSS. | |
97 static const int SELECTOR_EXPRESSION = 512; | |
98 static const int COMBINATOR_NONE = 513; | |
99 static const int COMBINATOR_DESCENDANT = 514; // Space combinator | |
100 static const int COMBINATOR_PLUS = 515; // + combinator | |
101 static const int COMBINATOR_GREATER = 516; // > combinator | |
102 static const int COMBINATOR_TILDE = 517; // ~ combinator | |
103 | |
104 static const int UNARY_OP_NONE = 518; // No unary operator present. | |
105 | |
106 // Attribute match types: | |
107 static const int INCLUDES = 530; // '~=' | |
108 static const int DASH_MATCH = 531; // '|=' | |
109 static const int PREFIX_MATCH = 532; // '^=' | |
110 static const int SUFFIX_MATCH = 533; // '$=' | |
111 static const int SUBSTRING_MATCH = 534; // '*=' | |
112 static const int NO_MATCH = 535; // No operator. | |
113 | |
114 // Unit types: | |
115 static const int UNIT_EM = 600; | |
116 static const int UNIT_EX = 601; | |
117 static const int UNIT_LENGTH_PX = 602; | |
118 static const int UNIT_LENGTH_CM = 603; | |
119 static const int UNIT_LENGTH_MM = 604; | |
120 static const int UNIT_LENGTH_IN = 605; | |
121 static const int UNIT_LENGTH_PT = 606; | |
122 static const int UNIT_LENGTH_PC = 607; | |
123 static const int UNIT_ANGLE_DEG = 608; | |
124 static const int UNIT_ANGLE_RAD = 609; | |
125 static const int UNIT_ANGLE_GRAD = 610; | |
126 static const int UNIT_ANGLE_TURN = 611; | |
127 static const int UNIT_TIME_MS = 612; | |
128 static const int UNIT_TIME_S = 613; | |
129 static const int UNIT_FREQ_HZ = 614; | |
130 static const int UNIT_FREQ_KHZ = 615; | |
131 static const int UNIT_PERCENT = 616; | |
132 static const int UNIT_FRACTION = 617; | |
133 static const int UNIT_RESOLUTION_DPI = 618; | |
134 static const int UNIT_RESOLUTION_DPCM = 619; | |
135 static const int UNIT_RESOLUTION_DPPX = 620; | |
136 static const int UNIT_CH = 621; // Measure of "0" U+0030 glyph. | |
137 static const int UNIT_REM = 622; // computed value ‘font-size’ on root elem. | |
138 static const int UNIT_VIEWPORT_VW = 623; | |
139 static const int UNIT_VIEWPORT_VH = 624; | |
140 static const int UNIT_VIEWPORT_VMIN = 625; | |
141 static const int UNIT_VIEWPORT_VMAX = 626; | |
142 | |
143 // Directives (@nnnn) | |
144 static const int DIRECTIVE_NONE = 640; | |
145 static const int DIRECTIVE_IMPORT = 641; | |
146 static const int DIRECTIVE_MEDIA = 642; | |
147 static const int DIRECTIVE_PAGE = 643; | |
148 static const int DIRECTIVE_CHARSET = 644; | |
149 static const int DIRECTIVE_STYLET = 645; | |
150 static const int DIRECTIVE_KEYFRAMES = 646; | |
151 static const int DIRECTIVE_WEB_KIT_KEYFRAMES = 647; | |
152 static const int DIRECTIVE_MOZ_KEYFRAMES = 648; | |
153 static const int DIRECTIVE_MS_KEYFRAMES = 649; | |
154 static const int DIRECTIVE_O_KEYFRAMES = 650; | |
155 static const int DIRECTIVE_FONTFACE = 651; | |
156 static const int DIRECTIVE_NAMESPACE = 652; | |
157 static const int DIRECTIVE_HOST = 653; | |
158 static const int DIRECTIVE_MIXIN = 654; | |
159 static const int DIRECTIVE_INCLUDE = 655; | |
160 static const int DIRECTIVE_CONTENT = 656; | |
161 static const int DIRECTIVE_EXTEND = 657; | |
162 | |
163 // Media query operators | |
164 static const int MEDIA_OP_ONLY = 665; // Unary. | |
165 static const int MEDIA_OP_NOT = 666; // Unary. | |
166 static const int MEDIA_OP_AND = 667; // Binary. | |
167 | |
168 // Directives inside of a @page (margin sym). | |
169 static const int MARGIN_DIRECTIVE_TOPLEFTCORNER = 670; | |
170 static const int MARGIN_DIRECTIVE_TOPLEFT = 671; | |
171 static const int MARGIN_DIRECTIVE_TOPCENTER = 672; | |
172 static const int MARGIN_DIRECTIVE_TOPRIGHT = 673; | |
173 static const int MARGIN_DIRECTIVE_TOPRIGHTCORNER = 674; | |
174 static const int MARGIN_DIRECTIVE_BOTTOMLEFTCORNER = 675; | |
175 static const int MARGIN_DIRECTIVE_BOTTOMLEFT = 676; | |
176 static const int MARGIN_DIRECTIVE_BOTTOMCENTER = 677; | |
177 static const int MARGIN_DIRECTIVE_BOTTOMRIGHT = 678; | |
178 static const int MARGIN_DIRECTIVE_BOTTOMRIGHTCORNER = 679; | |
179 static const int MARGIN_DIRECTIVE_LEFTTOP = 680; | |
180 static const int MARGIN_DIRECTIVE_LEFTMIDDLE = 681; | |
181 static const int MARGIN_DIRECTIVE_LEFTBOTTOM = 682; | |
182 static const int MARGIN_DIRECTIVE_RIGHTTOP = 683; | |
183 static const int MARGIN_DIRECTIVE_RIGHTMIDDLE = 684; | |
184 static const int MARGIN_DIRECTIVE_RIGHTBOTTOM = 685; | |
185 | |
186 // Simple selector type. | |
187 static const int CLASS_NAME = 700; // .class | |
188 static const int ELEMENT_NAME = 701; // tagName | |
189 static const int HASH_NAME = 702; // #elementId | |
190 static const int ATTRIBUTE_NAME = 703; // [attrib] | |
191 static const int PSEUDO_ELEMENT_NAME = 704; // ::pseudoElement | |
192 static const int PSEUDO_CLASS_NAME = 705; // :pseudoClass | |
193 static const int NEGATION = 706; // NOT | |
194 | |
195 static const List<Map<int, String>> _DIRECTIVES = const [ | |
196 const {'type': TokenKind.DIRECTIVE_IMPORT, 'value' : 'import'}, | |
197 const {'type': TokenKind.DIRECTIVE_MEDIA, 'value' : 'media'}, | |
198 const {'type': TokenKind.DIRECTIVE_PAGE, 'value' : 'page'}, | |
199 const {'type': TokenKind.DIRECTIVE_CHARSET, 'value' : 'charset'}, | |
200 const {'type': TokenKind.DIRECTIVE_STYLET, 'value' : 'stylet'}, | |
201 const {'type': TokenKind.DIRECTIVE_KEYFRAMES, 'value' : 'keyframes'}, | |
202 const {'type': TokenKind.DIRECTIVE_WEB_KIT_KEYFRAMES, | |
203 'value' : '-webkit-keyframes'}, | |
204 const {'type': TokenKind.DIRECTIVE_MOZ_KEYFRAMES, | |
205 'value' : '-moz-keyframes'}, | |
206 const {'type': TokenKind.DIRECTIVE_MS_KEYFRAMES, 'value' : '-ms-keyframes'}, | |
207 const {'type': TokenKind.DIRECTIVE_O_KEYFRAMES, 'value' : '-o-keyframes'}, | |
208 const {'type': TokenKind.DIRECTIVE_FONTFACE, 'value' : 'font-face'}, | |
209 const {'type': TokenKind.DIRECTIVE_NAMESPACE, 'value' : 'namespace'}, | |
210 const {'type': TokenKind.DIRECTIVE_HOST, 'value' : 'host'}, | |
211 const {'type': TokenKind.DIRECTIVE_MIXIN, 'value' : 'mixin'}, | |
212 const {'type': TokenKind.DIRECTIVE_INCLUDE, 'value' : 'include'}, | |
213 const {'type': TokenKind.DIRECTIVE_CONTENT, 'value' : 'content'}, | |
214 const {'type': TokenKind.DIRECTIVE_EXTEND, 'value' : 'extend'}, | |
215 ]; | |
216 | |
217 static const List<Map<int, String>> MEDIA_OPERATORS = const [ | |
218 const {'type': TokenKind.MEDIA_OP_ONLY, 'value' : 'only'}, | |
219 const {'type': TokenKind.MEDIA_OP_NOT, 'value' : 'not'}, | |
220 const {'type': TokenKind.MEDIA_OP_AND, 'value' : 'and'}, | |
221 ]; | |
222 | |
223 static const List<Map<int, String>> MARGIN_DIRECTIVES = const [ | |
224 const {'type': TokenKind.MARGIN_DIRECTIVE_TOPLEFTCORNER, | |
225 'value' : 'top-left-corner'}, | |
226 const {'type': TokenKind.MARGIN_DIRECTIVE_TOPLEFT, | |
227 'value' : 'top-left'}, | |
228 const {'type': TokenKind.MARGIN_DIRECTIVE_TOPCENTER, | |
229 'value' : 'top-center'}, | |
230 const {'type': TokenKind.MARGIN_DIRECTIVE_TOPRIGHT, | |
231 'value' : 'top-right'}, | |
232 const {'type': TokenKind.MARGIN_DIRECTIVE_TOPRIGHTCORNER, | |
233 'value' : 'top-right-corner'}, | |
234 const {'type': TokenKind.MARGIN_DIRECTIVE_BOTTOMLEFTCORNER, | |
235 'value' : 'bottom-left-corner'}, | |
236 const {'type': TokenKind.MARGIN_DIRECTIVE_BOTTOMLEFT, | |
237 'value' : 'bottom-left'}, | |
238 const {'type': TokenKind.MARGIN_DIRECTIVE_BOTTOMCENTER, | |
239 'value' : 'bottom-center'}, | |
240 const {'type': TokenKind.MARGIN_DIRECTIVE_BOTTOMRIGHT, | |
241 'value' : 'bottom-right'}, | |
242 const {'type': TokenKind.MARGIN_DIRECTIVE_BOTTOMRIGHTCORNER, | |
243 'value' : 'bottom-right-corner'}, | |
244 const {'type': TokenKind.MARGIN_DIRECTIVE_LEFTTOP, | |
245 'value' : 'left-top'}, | |
246 const {'type': TokenKind.MARGIN_DIRECTIVE_LEFTMIDDLE, | |
247 'value' : 'left-middle'}, | |
248 const {'type': TokenKind.MARGIN_DIRECTIVE_LEFTBOTTOM, | |
249 'value' : 'right-bottom'}, | |
250 const {'type': TokenKind.MARGIN_DIRECTIVE_RIGHTTOP, | |
251 'value' : 'right-top'}, | |
252 const {'type': TokenKind.MARGIN_DIRECTIVE_RIGHTMIDDLE, | |
253 'value' : 'right-middle'}, | |
254 const {'type': TokenKind.MARGIN_DIRECTIVE_RIGHTBOTTOM, | |
255 'value' : 'right-bottom'}, | |
256 ]; | |
257 | |
258 static const List<Map> _UNITS = const [ | |
259 const {'unit': TokenKind.UNIT_EM, 'value' : 'em'}, | |
260 const {'unit': TokenKind.UNIT_EX, 'value' : 'ex'}, | |
261 const {'unit': TokenKind.UNIT_LENGTH_PX, 'value' : 'px'}, | |
262 const {'unit': TokenKind.UNIT_LENGTH_CM, 'value' : 'cm'}, | |
263 const {'unit': TokenKind.UNIT_LENGTH_MM, 'value' : 'mm'}, | |
264 const {'unit': TokenKind.UNIT_LENGTH_IN, 'value' : 'in'}, | |
265 const {'unit': TokenKind.UNIT_LENGTH_PT, 'value' : 'pt'}, | |
266 const {'unit': TokenKind.UNIT_LENGTH_PC, 'value' : 'pc'}, | |
267 const {'unit': TokenKind.UNIT_ANGLE_DEG, 'value' : 'deg'}, | |
268 const {'unit': TokenKind.UNIT_ANGLE_RAD, 'value' : 'rad'}, | |
269 const {'unit': TokenKind.UNIT_ANGLE_GRAD, 'value' : 'grad'}, | |
270 const {'unit': TokenKind.UNIT_ANGLE_TURN, 'value' : 'turn'}, | |
271 const {'unit': TokenKind.UNIT_TIME_MS, 'value' : 'ms'}, | |
272 const {'unit': TokenKind.UNIT_TIME_S, 'value' : 's'}, | |
273 const {'unit': TokenKind.UNIT_FREQ_HZ, 'value' : 'hz'}, | |
274 const {'unit': TokenKind.UNIT_FREQ_KHZ, 'value' : 'khz'}, | |
275 const {'unit': TokenKind.UNIT_FRACTION, 'value' : 'fr'}, | |
276 const {'unit': TokenKind.UNIT_RESOLUTION_DPI, 'value' : 'dpi'}, | |
277 const {'unit': TokenKind.UNIT_RESOLUTION_DPCM, 'value' : 'dpcm'}, | |
278 const {'unit': TokenKind.UNIT_RESOLUTION_DPPX, 'value' : 'dppx'}, | |
279 const {'unit': TokenKind.UNIT_CH, 'value' : 'ch'}, | |
280 const {'unit': TokenKind.UNIT_REM, 'value' : 'rem'}, | |
281 const {'unit': TokenKind.UNIT_VIEWPORT_VW, 'value' : 'vw'}, | |
282 const {'unit': TokenKind.UNIT_VIEWPORT_VH, 'value' : 'vh'}, | |
283 const {'unit': TokenKind.UNIT_VIEWPORT_VMIN, 'value' : 'vmin'}, | |
284 const {'unit': TokenKind.UNIT_VIEWPORT_VMAX, 'value' : 'vmax'}, | |
285 ]; | |
286 | |
287 // Some more constants: | |
288 static const int ASCII_UPPER_A = 65; // ASCII value for uppercase A | |
289 static const int ASCII_UPPER_Z = 90; // ASCII value for uppercase Z | |
290 | |
291 // Extended color keywords: | |
292 static const List<Map> _EXTENDED_COLOR_NAMES = const [ | |
293 const {'name' : 'aliceblue', 'value' : 0xF08FF}, | |
294 const {'name' : 'antiquewhite', 'value' : 0xFAEBD7}, | |
295 const {'name' : 'aqua', 'value' : 0x00FFFF}, | |
296 const {'name' : 'aquamarine', 'value' : 0x7FFFD4}, | |
297 const {'name' : 'azure', 'value' : 0xF0FFFF}, | |
298 const {'name' : 'beige', 'value' : 0xF5F5DC}, | |
299 const {'name' : 'bisque', 'value' : 0xFFE4C4}, | |
300 const {'name' : 'black', 'value' : 0x000000}, | |
301 const {'name' : 'blanchedalmond', 'value' : 0xFFEBCD}, | |
302 const {'name' : 'blue', 'value' : 0x0000FF}, | |
303 const {'name' : 'blueviolet', 'value' : 0x8A2BE2}, | |
304 const {'name' : 'brown', 'value' : 0xA52A2A}, | |
305 const {'name' : 'burlywood', 'value' : 0xDEB887}, | |
306 const {'name' : 'cadetblue', 'value' : 0x5F9EA0}, | |
307 const {'name' : 'chartreuse', 'value' : 0x7FFF00}, | |
308 const {'name' : 'chocolate', 'value' : 0xD2691E}, | |
309 const {'name' : 'coral', 'value' : 0xFF7F50}, | |
310 const {'name' : 'cornflowerblue', 'value' : 0x6495ED}, | |
311 const {'name' : 'cornsilk', 'value' : 0xFFF8DC}, | |
312 const {'name' : 'crimson', 'value' : 0xDC143C}, | |
313 const {'name' : 'cyan', 'value' : 0x00FFFF}, | |
314 const {'name' : 'darkblue', 'value' : 0x00008B}, | |
315 const {'name' : 'darkcyan', 'value' : 0x008B8B}, | |
316 const {'name' : 'darkgoldenrod', 'value' : 0xB8860B}, | |
317 const {'name' : 'darkgray', 'value' : 0xA9A9A9}, | |
318 const {'name' : 'darkgreen', 'value' : 0x006400}, | |
319 const {'name' : 'darkgrey', 'value' : 0xA9A9A9}, | |
320 const {'name' : 'darkkhaki', 'value' : 0xBDB76B}, | |
321 const {'name' : 'darkmagenta', 'value' : 0x8B008B}, | |
322 const {'name' : 'darkolivegreen', 'value' : 0x556B2F}, | |
323 const {'name' : 'darkorange', 'value' : 0xFF8C00}, | |
324 const {'name' : 'darkorchid', 'value' : 0x9932CC}, | |
325 const {'name' : 'darkred', 'value' : 0x8B0000}, | |
326 const {'name' : 'darksalmon', 'value' : 0xE9967A}, | |
327 const {'name' : 'darkseagreen', 'value' : 0x8FBC8F}, | |
328 const {'name' : 'darkslateblue', 'value' : 0x483D8B}, | |
329 const {'name' : 'darkslategray', 'value' : 0x2F4F4F}, | |
330 const {'name' : 'darkslategrey', 'value' : 0x2F4F4F}, | |
331 const {'name' : 'darkturquoise', 'value' : 0x00CED1}, | |
332 const {'name' : 'darkviolet', 'value' : 0x9400D3}, | |
333 const {'name' : 'deeppink', 'value' : 0xFF1493}, | |
334 const {'name' : 'deepskyblue', 'value' : 0x00BFFF}, | |
335 const {'name' : 'dimgray', 'value' : 0x696969}, | |
336 const {'name' : 'dimgrey', 'value' : 0x696969}, | |
337 const {'name' : 'dodgerblue', 'value' : 0x1E90FF}, | |
338 const {'name' : 'firebrick', 'value' : 0xB22222}, | |
339 const {'name' : 'floralwhite', 'value' : 0xFFFAF0}, | |
340 const {'name' : 'forestgreen', 'value' : 0x228B22}, | |
341 const {'name' : 'fuchsia', 'value' : 0xFF00FF}, | |
342 const {'name' : 'gainsboro', 'value' : 0xDCDCDC}, | |
343 const {'name' : 'ghostwhite', 'value' : 0xF8F8FF}, | |
344 const {'name' : 'gold', 'value' : 0xFFD700}, | |
345 const {'name' : 'goldenrod', 'value' : 0xDAA520}, | |
346 const {'name' : 'gray', 'value' : 0x808080}, | |
347 const {'name' : 'green', 'value' : 0x008000}, | |
348 const {'name' : 'greenyellow', 'value' : 0xADFF2F}, | |
349 const {'name' : 'grey', 'value' : 0x808080}, | |
350 const {'name' : 'honeydew', 'value' : 0xF0FFF0}, | |
351 const {'name' : 'hotpink', 'value' : 0xFF69B4}, | |
352 const {'name' : 'indianred', 'value' : 0xCD5C5C}, | |
353 const {'name' : 'indigo', 'value' : 0x4B0082}, | |
354 const {'name' : 'ivory', 'value' : 0xFFFFF0}, | |
355 const {'name' : 'khaki', 'value' : 0xF0E68C}, | |
356 const {'name' : 'lavender', 'value' : 0xE6E6FA}, | |
357 const {'name' : 'lavenderblush', 'value' : 0xFFF0F5}, | |
358 const {'name' : 'lawngreen', 'value' : 0x7CFC00}, | |
359 const {'name' : 'lemonchiffon', 'value' : 0xFFFACD}, | |
360 const {'name' : 'lightblue', 'value' : 0xADD8E6}, | |
361 const {'name' : 'lightcoral', 'value' : 0xF08080}, | |
362 const {'name' : 'lightcyan', 'value' : 0xE0FFFF}, | |
363 const {'name' : 'lightgoldenrodyellow', 'value' : 0xFAFAD2}, | |
364 const {'name' : 'lightgray', 'value' : 0xD3D3D3}, | |
365 const {'name' : 'lightgreen', 'value' : 0x90EE90}, | |
366 const {'name' : 'lightgrey', 'value' : 0xD3D3D3}, | |
367 const {'name' : 'lightpink', 'value' : 0xFFB6C1}, | |
368 const {'name' : 'lightsalmon', 'value' : 0xFFA07A}, | |
369 const {'name' : 'lightseagreen', 'value' : 0x20B2AA}, | |
370 const {'name' : 'lightskyblue', 'value' : 0x87CEFA}, | |
371 const {'name' : 'lightslategray', 'value' : 0x778899}, | |
372 const {'name' : 'lightslategrey', 'value' : 0x778899}, | |
373 const {'name' : 'lightsteelblue', 'value' : 0xB0C4DE}, | |
374 const {'name' : 'lightyellow', 'value' : 0xFFFFE0}, | |
375 const {'name' : 'lime', 'value' : 0x00FF00}, | |
376 const {'name' : 'limegreen', 'value' : 0x32CD32}, | |
377 const {'name' : 'linen', 'value' : 0xFAF0E6}, | |
378 const {'name' : 'magenta', 'value' : 0xFF00FF}, | |
379 const {'name' : 'maroon', 'value' : 0x800000}, | |
380 const {'name' : 'mediumaquamarine', 'value' : 0x66CDAA}, | |
381 const {'name' : 'mediumblue', 'value' : 0x0000CD}, | |
382 const {'name' : 'mediumorchid', 'value' : 0xBA55D3}, | |
383 const {'name' : 'mediumpurple', 'value' : 0x9370DB}, | |
384 const {'name' : 'mediumseagreen', 'value' : 0x3CB371}, | |
385 const {'name' : 'mediumslateblue', 'value' : 0x7B68EE}, | |
386 const {'name' : 'mediumspringgreen', 'value' : 0x00FA9A}, | |
387 const {'name' : 'mediumturquoise', 'value' : 0x48D1CC}, | |
388 const {'name' : 'mediumvioletred', 'value' : 0xC71585}, | |
389 const {'name' : 'midnightblue', 'value' : 0x191970}, | |
390 const {'name' : 'mintcream', 'value' : 0xF5FFFA}, | |
391 const {'name' : 'mistyrose', 'value' : 0xFFE4E1}, | |
392 const {'name' : 'moccasin', 'value' : 0xFFE4B5}, | |
393 const {'name' : 'navajowhite', 'value' : 0xFFDEAD}, | |
394 const {'name' : 'navy', 'value' : 0x000080}, | |
395 const {'name' : 'oldlace', 'value' : 0xFDF5E6}, | |
396 const {'name' : 'olive', 'value' : 0x808000}, | |
397 const {'name' : 'olivedrab', 'value' : 0x6B8E23}, | |
398 const {'name' : 'orange', 'value' : 0xFFA500}, | |
399 const {'name' : 'orangered', 'value' : 0xFF4500}, | |
400 const {'name' : 'orchid', 'value' : 0xDA70D6}, | |
401 const {'name' : 'palegoldenrod', 'value' : 0xEEE8AA}, | |
402 const {'name' : 'palegreen', 'value' : 0x98FB98}, | |
403 const {'name' : 'paleturquoise', 'value' : 0xAFEEEE}, | |
404 const {'name' : 'palevioletred', 'value' : 0xDB7093}, | |
405 const {'name' : 'papayawhip', 'value' : 0xFFEFD5}, | |
406 const {'name' : 'peachpuff', 'value' : 0xFFDAB9}, | |
407 const {'name' : 'peru', 'value' : 0xCD853F}, | |
408 const {'name' : 'pink', 'value' : 0xFFC0CB}, | |
409 const {'name' : 'plum', 'value' : 0xDDA0DD}, | |
410 const {'name' : 'powderblue', 'value' : 0xB0E0E6}, | |
411 const {'name' : 'purple', 'value' : 0x800080}, | |
412 const {'name' : 'red', 'value' : 0xFF0000}, | |
413 const {'name' : 'rosybrown', 'value' : 0xBC8F8F}, | |
414 const {'name' : 'royalblue', 'value' : 0x4169E1}, | |
415 const {'name' : 'saddlebrown', 'value' : 0x8B4513}, | |
416 const {'name' : 'salmon', 'value' : 0xFA8072}, | |
417 const {'name' : 'sandybrown', 'value' : 0xF4A460}, | |
418 const {'name' : 'seagreen', 'value' : 0x2E8B57}, | |
419 const {'name' : 'seashell', 'value' : 0xFFF5EE}, | |
420 const {'name' : 'sienna', 'value' : 0xA0522D}, | |
421 const {'name' : 'silver', 'value' : 0xC0C0C0}, | |
422 const {'name' : 'skyblue', 'value' : 0x87CEEB}, | |
423 const {'name' : 'slateblue', 'value' : 0x6A5ACD}, | |
424 const {'name' : 'slategray', 'value' : 0x708090}, | |
425 const {'name' : 'slategrey', 'value' : 0x708090}, | |
426 const {'name' : 'snow', 'value' : 0xFFFAFA}, | |
427 const {'name' : 'springgreen', 'value' : 0x00FF7F}, | |
428 const {'name' : 'steelblue', 'value' : 0x4682B4}, | |
429 const {'name' : 'tan', 'value' : 0xD2B48C}, | |
430 const {'name' : 'teal', 'value' : 0x008080}, | |
431 const {'name' : 'thistle', 'value' : 0xD8BFD8}, | |
432 const {'name' : 'tomato', 'value' : 0xFF6347}, | |
433 const {'name' : 'turquoise', 'value' : 0x40E0D0}, | |
434 const {'name' : 'violet', 'value' : 0xEE82EE}, | |
435 const {'name' : 'wheat', 'value' : 0xF5DEB3}, | |
436 const {'name' : 'white', 'value' : 0xFFFFFF}, | |
437 const {'name' : 'whitesmoke', 'value' : 0xF5F5F5}, | |
438 const {'name' : 'yellow', 'value' : 0xFFFF00}, | |
439 const {'name' : 'yellowgreen', 'value' : 0x9ACD32}, | |
440 ]; | |
441 | |
442 // TODO(terry): Should used Dart mirroring for parameter values and types | |
443 // especially for enumeration (e.g., counter's second parameter | |
444 // is list-style-type which is an enumerated list for ordering | |
445 // of a list 'circle', 'decimal', 'lower-roman', 'square', etc. | |
446 // see http://www.w3schools.com/cssref/pr_list-style-type.asp | |
447 // for list of possible values. | |
448 | |
449 // List of valid CSS functions: | |
450 static const List<Map<String, Object>> _FUNCTIONS = const [ | |
451 const {'name' : 'counter', 'info' : const {'params' : 2, 'expr' : false}}, | |
452 const {'name' : 'attr', 'info' : const {'params' : 1, 'expr' : false}}, | |
453 const {'name' : 'calc', 'info' : const {'params' : 1, 'expr' : true}}, | |
454 const {'name' : 'min', 'info' : const {'params' : 2, 'expr' : true}}, | |
455 const {'name' : 'max', 'info' : const {'params' : 2, 'expr' : true}}, | |
456 | |
457 // 2D functions: | |
458 const {'name' : 'translateX', | |
459 'info' : const {'params' : 1, 'expr' : false}}, | |
460 const {'name' : 'translateY', | |
461 'info' : const {'params' : 1, 'expr' : false}}, | |
462 const {'name' : 'translate', 'info' : const {'params' : 2, 'expr' : false}}, | |
463 const {'name' : 'rotate', 'info' : const {'params' : 1, 'expr' : false}}, | |
464 const {'name' : 'scaleX', 'info' : const {'params' : 1, 'expr' : false}}, | |
465 const {'name' : 'scaleY', 'info' : const {'params' : 1, 'expr' : false}}, | |
466 const {'name' : 'scale', 'info' : const {'params' : 2, 'expr' : false}}, | |
467 const {'name' : 'skewX', 'info' : const {'params' : 1, 'expr' : false}}, | |
468 const {'name' : 'skewY', 'info' : const {'params' : 1, 'expr' : false}}, | |
469 const {'name' : 'skew', 'info' : const {'params' : 2, 'expr' : false}}, | |
470 const {'name' : 'matrix', 'info' : const {'params' : 6, 'expr' : false}}, | |
471 | |
472 // 3D functions: | |
473 const {'name' : 'matrix3d', 'info' : const {'params' : 16, 'expr' : false}}, | |
474 const {'name' : 'translate3d', | |
475 'info' : const {'params' : 3, 'expr' : false}}, | |
476 const {'name' : 'translateZ', | |
477 'info' : const {'params' : 1, 'expr' : false}}, | |
478 const {'name' : 'scale3d', 'info' : const {'params' : 3, 'expr' : false}}, | |
479 const {'name' : 'scaleZ', 'info' : const {'params' : 1, 'expr' : false}}, | |
480 const {'name' : 'rotate3d', 'info' : const {'params' : 3, 'expr' : false}}, | |
481 const {'name' : 'rotateX', 'info' : const {'params' : 1, 'expr' : false}}, | |
482 const {'name' : 'rotateY', 'info' : const {'params' : 1, 'expr' : false}}, | |
483 const {'name' : 'rotateZ', 'info' : const {'params' : 1, 'expr' : false}}, | |
484 const {'name' : 'perspective', | |
485 'info' : const {'params' : 1, 'expr' : false}}, | |
486 ]; | |
487 | |
488 /** | |
489 * Check if name is a pre-defined CSS name. Used by error handler to report | |
490 * if name is unknown or used improperly. | |
491 */ | |
492 static bool isPredefinedName(String name) { | |
493 var nameLen = name.length; | |
494 // TODO(terry): Add more pre-defined names (hidden, bolder, inherit, etc.). | |
495 if (matchUnits(name, 0, nameLen) == -1 || | |
496 matchDirectives(name, 0, nameLen) == -1 || | |
497 matchMarginDirectives(name, 0, nameLen) == -1 || | |
498 matchColorName(name) == null) { | |
499 return false; | |
500 } | |
501 | |
502 return true; | |
503 } | |
504 | |
505 /** Return the token that matches the unit ident found. */ | |
506 static int matchList(var identList, String tokenField, String text, | |
507 int offset, int length) { | |
508 for (final entry in identList) { | |
509 String ident = entry['value']; | |
510 | |
511 if (length == ident.length) { | |
512 int idx = offset; | |
513 bool match = true; | |
514 for (int i = 0; i < ident.length; i++) { | |
515 int identChar = ident.codeUnitAt(i); | |
516 int char = text.codeUnitAt(idx++); | |
517 // Compare lowercase to lowercase then check if char is uppercase. | |
518 match = match && (char == identChar || | |
519 ((char >= ASCII_UPPER_A && char <= ASCII_UPPER_Z) && | |
520 (char + 32) == identChar)); | |
521 if (!match) { | |
522 break; | |
523 } | |
524 } | |
525 | |
526 if (match) { | |
527 // Completely matched; return the token for this unit. | |
528 return entry[tokenField]; | |
529 } | |
530 } | |
531 } | |
532 | |
533 return -1; // Not a unit token. | |
534 } | |
535 | |
536 /** Return the token that matches the unit ident found. */ | |
537 static int matchUnits(String text, int offset, int length) { | |
538 return matchList(_UNITS, 'unit', text, offset, length); | |
539 } | |
540 | |
541 /** Return the token that matches the directive name found. */ | |
542 static int matchDirectives(String text, int offset, int length) { | |
543 return matchList(_DIRECTIVES, 'type', text, offset, length); | |
544 } | |
545 | |
546 /** Return the token that matches the margin directive name found. */ | |
547 static int matchMarginDirectives(String text, int offset, int length) { | |
548 return matchList(MARGIN_DIRECTIVES, 'type', text, offset, length); | |
549 } | |
550 | |
551 /** Return the token that matches the media operator found. */ | |
552 static int matchMediaOperator(String text, int offset, int length) { | |
553 return matchList(MEDIA_OPERATORS, 'type', text, offset, length); | |
554 } | |
555 | |
556 static String idToValue(var identList, int tokenId) { | |
557 for (var entry in identList) { | |
558 if (tokenId == entry['type']) { | |
559 return entry['value']; | |
560 } | |
561 } | |
562 | |
563 return null; | |
564 } | |
565 | |
566 | |
567 /** Return the unit token as its pretty name. */ | |
568 static String unitToString(int unitTokenToFind) { | |
569 if (unitTokenToFind == TokenKind.PERCENT) { | |
570 return '%'; | |
571 } else { | |
572 for (final entry in _UNITS) { | |
573 int unit = entry['unit']; | |
574 if (unit == unitTokenToFind) { | |
575 return entry['value']; | |
576 } | |
577 } | |
578 } | |
579 | |
580 return '<BAD UNIT>'; // Not a unit token. | |
581 } | |
582 | |
583 /** | |
584 * Match color name, case insensitive match and return the associated color | |
585 * entry from _EXTENDED_COLOR_NAMES list, return [:null:] if not found. | |
586 */ | |
587 static Map matchColorName(String text) { | |
588 var name = text.toLowerCase(); | |
589 return _EXTENDED_COLOR_NAMES. | |
590 firstWhere((e) => e['name'] == name, orElse: () => null); | |
591 } | |
592 | |
593 /** Return RGB value as [int] from a color entry in _EXTENDED_COLOR_NAMES. */ | |
594 static int colorValue(Map entry) { | |
595 assert(entry != null); | |
596 return entry['value']; | |
597 } | |
598 | |
599 static String hexToColorName(hexValue) { | |
600 for (final entry in _EXTENDED_COLOR_NAMES) { | |
601 if (entry['value'] == hexValue) { | |
602 return entry['name']; | |
603 } | |
604 } | |
605 | |
606 return null; | |
607 } | |
608 | |
609 static String decimalToHex(int number, [int minDigits = 1]) { | |
610 final String _HEX_DIGITS = '0123456789abcdef'; | |
611 | |
612 List<String> result = new List<String>(); | |
613 | |
614 int dividend = number >> 4; | |
615 int remain = number % 16; | |
616 result.add(_HEX_DIGITS[remain]); | |
617 while (dividend != 0) { | |
618 remain = dividend % 16; | |
619 dividend >>= 4; | |
620 result.add(_HEX_DIGITS[remain]); | |
621 } | |
622 | |
623 StringBuffer invertResult = new StringBuffer(); | |
624 int paddings = minDigits - result.length; | |
625 while (paddings-- > 0) { | |
626 invertResult.write('0'); | |
627 } | |
628 for (int i = result.length - 1; i >= 0; i--) { | |
629 invertResult.write(result[i]); | |
630 } | |
631 | |
632 return invertResult.toString(); | |
633 } | |
634 | |
635 static String kindToString(int kind) { | |
636 switch(kind) { | |
637 case TokenKind.UNUSED: return "ERROR"; | |
638 case TokenKind.END_OF_FILE: return "end of file"; | |
639 case TokenKind.LPAREN: return "("; | |
640 case TokenKind.RPAREN: return ")"; | |
641 case TokenKind.LBRACK: return "["; | |
642 case TokenKind.RBRACK: return "]"; | |
643 case TokenKind.LBRACE: return "{"; | |
644 case TokenKind.RBRACE: return "}"; | |
645 case TokenKind.DOT: return "."; | |
646 case TokenKind.SEMICOLON: return ";"; | |
647 case TokenKind.AT: return "@"; | |
648 case TokenKind.HASH: return "#"; | |
649 case TokenKind.PLUS: return "+"; | |
650 case TokenKind.GREATER: return ">"; | |
651 case TokenKind.TILDE: return "~"; | |
652 case TokenKind.ASTERISK: return "*"; | |
653 case TokenKind.NAMESPACE: return "|"; | |
654 case TokenKind.COLON: return ":"; | |
655 case TokenKind.PRIVATE_NAME: return "_"; | |
656 case TokenKind.COMMA: return ","; | |
657 case TokenKind.SPACE: return " "; | |
658 case TokenKind.TAB: return "\t"; | |
659 case TokenKind.NEWLINE: return "\n"; | |
660 case TokenKind.RETURN: return "\r"; | |
661 case TokenKind.PERCENT: return "%"; | |
662 case TokenKind.SINGLE_QUOTE: return "'"; | |
663 case TokenKind.DOUBLE_QUOTE: return "\""; | |
664 case TokenKind.SLASH: return "/"; | |
665 case TokenKind.EQUALS: return '='; | |
666 case TokenKind.CARET: return '^'; | |
667 case TokenKind.DOLLAR: return '\$'; | |
668 case TokenKind.LESS: return '<'; | |
669 case TokenKind.BANG: return '!'; | |
670 case TokenKind.MINUS: return '-'; | |
671 case TokenKind.BACKSLASH: return '\\'; | |
672 default: | |
673 throw "Unknown TOKEN"; | |
674 } | |
675 } | |
676 | |
677 static bool isKindIdentifier(int kind) { | |
678 switch(kind) { | |
679 // Synthesized tokens. | |
680 case TokenKind.DIRECTIVE_IMPORT: | |
681 case TokenKind.DIRECTIVE_MEDIA: | |
682 case TokenKind.DIRECTIVE_PAGE: | |
683 case TokenKind.DIRECTIVE_CHARSET: | |
684 case TokenKind.DIRECTIVE_STYLET: | |
685 case TokenKind.DIRECTIVE_KEYFRAMES: | |
686 case TokenKind.DIRECTIVE_WEB_KIT_KEYFRAMES: | |
687 case TokenKind.DIRECTIVE_MOZ_KEYFRAMES: | |
688 case TokenKind.DIRECTIVE_MS_KEYFRAMES: | |
689 case TokenKind.DIRECTIVE_O_KEYFRAMES: | |
690 case TokenKind.DIRECTIVE_FONTFACE: | |
691 case TokenKind.DIRECTIVE_NAMESPACE: | |
692 case TokenKind.DIRECTIVE_HOST: | |
693 case TokenKind.DIRECTIVE_MIXIN: | |
694 case TokenKind.DIRECTIVE_INCLUDE: | |
695 case TokenKind.DIRECTIVE_CONTENT: | |
696 case TokenKind.UNIT_EM: | |
697 case TokenKind.UNIT_EX: | |
698 case TokenKind.UNIT_LENGTH_PX: | |
699 case TokenKind.UNIT_LENGTH_CM: | |
700 case TokenKind.UNIT_LENGTH_MM: | |
701 case TokenKind.UNIT_LENGTH_IN: | |
702 case TokenKind.UNIT_LENGTH_PT: | |
703 case TokenKind.UNIT_LENGTH_PC: | |
704 case TokenKind.UNIT_ANGLE_DEG: | |
705 case TokenKind.UNIT_ANGLE_RAD: | |
706 case TokenKind.UNIT_ANGLE_GRAD: | |
707 case TokenKind.UNIT_TIME_MS: | |
708 case TokenKind.UNIT_TIME_S: | |
709 case TokenKind.UNIT_FREQ_HZ: | |
710 case TokenKind.UNIT_FREQ_KHZ: | |
711 case TokenKind.UNIT_FRACTION: | |
712 return true; | |
713 default: | |
714 return false; | |
715 } | |
716 } | |
717 | |
718 static bool isIdentifier(int kind) { | |
719 return kind == IDENTIFIER ; | |
720 } | |
721 } | |
722 | |
723 // Note: these names should match TokenKind names | |
724 class TokenChar { | |
725 static const int UNUSED = -1; | |
726 static const int END_OF_FILE = 0; | |
727 static const int LPAREN = 0x28; // "(".codeUnitAt(0) | |
728 static const int RPAREN = 0x29; // ")".codeUnitAt(0) | |
729 static const int LBRACK = 0x5b; // "[".codeUnitAt(0) | |
730 static const int RBRACK = 0x5d; // "]".codeUnitAt(0) | |
731 static const int LBRACE = 0x7b; // "{".codeUnitAt(0) | |
732 static const int RBRACE = 0x7d; // "}".codeUnitAt(0) | |
733 static const int DOT = 0x2e; // ".".codeUnitAt(0) | |
734 static const int SEMICOLON = 0x3b; // ";".codeUnitAt(0) | |
735 static const int AT = 0x40; // "@".codeUnitAt(0) | |
736 static const int HASH = 0x23; // "#".codeUnitAt(0) | |
737 static const int PLUS = 0x2b; // "+".codeUnitAt(0) | |
738 static const int GREATER = 0x3e; // ">".codeUnitAt(0) | |
739 static const int TILDE = 0x7e; // "~".codeUnitAt(0) | |
740 static const int ASTERISK = 0x2a; // "*".codeUnitAt(0) | |
741 static const int NAMESPACE = 0x7c; // "|".codeUnitAt(0) | |
742 static const int COLON = 0x3a; // ":".codeUnitAt(0) | |
743 static const int PRIVATE_NAME = 0x5f; // "_".codeUnitAt(0) | |
744 static const int COMMA = 0x2c; // ",".codeUnitAt(0) | |
745 static const int SPACE = 0x20; // " ".codeUnitAt(0) | |
746 static const int TAB = 0x9; // "\t".codeUnitAt(0) | |
747 static const int NEWLINE = 0xa; // "\n".codeUnitAt(0) | |
748 static const int RETURN = 0xd; // "\r".codeUnitAt(0) | |
749 static const int BACKSPACE = 0x8; // "/b".codeUnitAt(0) | |
750 static const int FF = 0xc; // "/f".codeUnitAt(0) | |
751 static const int VT = 0xb; // "/v".codeUnitAt(0) | |
752 static const int PERCENT = 0x25; // "%".codeUnitAt(0) | |
753 static const int SINGLE_QUOTE = 0x27; // "'".codeUnitAt(0) | |
754 static const int DOUBLE_QUOTE = 0x22; // '"'.codeUnitAt(0) | |
755 static const int SLASH = 0x2f; // "/".codeUnitAt(0) | |
756 static const int EQUALS = 0x3d; // "=".codeUnitAt(0) | |
757 static const int OR = 0x7c; // "|".codeUnitAt(0) | |
758 static const int CARET = 0x5e; // "^".codeUnitAt(0) | |
759 static const int DOLLAR = 0x24; // "\$".codeUnitAt(0) | |
760 static const int LESS = 0x3c; // "<".codeUnitAt(0) | |
761 static const int BANG = 0x21; // "!".codeUnitAt(0) | |
762 static const int MINUS = 0x2d; // "-".codeUnitAt(0) | |
763 static const int BACKSLASH = 0x5c; // "\".codeUnitAt(0) | |
764 static const int AMPERSAND = 0x26; // "&".codeUnitAt(0) | |
765 } | |
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