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1 /* | |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 // Generate js file as follows: | |
32 | |
33 /* | |
34 re2c -isc devtools/front_end/SourceCSSTokenizer.re2js \ | |
35 | sed 's|^yy\([^:]*\)*\:|case \1:|' \ | |
36 | sed 's|[*]cursor[+][+]|this._charAt(cursor++)|' \ | |
37 | sed 's|[[*][+][+]cursor|this._charAt(++cursor)|' \ | |
38 | sed 's|[*]cursor|this._charAt(cursor)|' \ | |
39 | sed 's|yych = \*\([^;]*\)|yych = this._charAt\1|' \ | |
40 | sed 's|goto case \([^;]*\)|{ gotoCase = \1; continue; }|' \ | |
41 | sed 's|yych <= \(0x[0-9a-fA-F]*\)|yych \<\= String.fromCharCode(\1)|' \ | |
42 | sed 's|unsigned\ int|var|' \ | |
43 | sed 's|var\ yych|case 1: var yych|' > devtools/front_end/SourceCSSTokenizer.
js | |
44 */ | |
45 | |
46 /** | |
47 * @constructor | |
48 * @extends {WebInspector.SourceTokenizer} | |
49 */ | |
50 WebInspector.SourceCSSTokenizer = function() | |
51 { | |
52 WebInspector.SourceTokenizer.call(this); | |
53 | |
54 this._propertyKeywords = WebInspector.CSSMetadata.cssPropertiesMetainfoKeySe
t(); | |
55 this._colorKeywords = WebInspector.CSSMetadata.colors(); | |
56 | |
57 this._valueKeywords = [ | |
58 "above", "absolute", "activeborder", "activecaption", "afar", "after-whi
te-space", "ahead", "alias", "all", "all-scroll", | |
59 "alternate", "always", "amharic", "amharic-abegede", "antialiased", "app
workspace", "arabic-indic", "armenian", "asterisks", | |
60 "auto", "avoid", "background", "backwards", "baseline", "below", "bidi-o
verride", "binary", "bengali", "blink", | |
61 "block", "block-axis", "bold", "bolder", "border", "border-box", "both",
"bottom", "break-all", "break-word", "button", | |
62 "button-bevel", "buttonface", "buttonhighlight", "buttonshadow", "button
text", "cambodian", "capitalize", "caps-lock-indicator", | |
63 "caption", "captiontext", "caret", "cell", "center", "checkbox", "circle
", "cjk-earthly-branch", "cjk-heavenly-stem", "cjk-ideographic", | |
64 "clear", "clip", "close-quote", "col-resize", "collapse", "compact", "co
ndensed", "contain", "content", "content-box", "context-menu", | |
65 "continuous", "copy", "cover", "crop", "cross", "crosshair", "currentcol
or", "cursive", "dashed", "decimal", "decimal-leading-zero", "default", | |
66 "default-button", "destination-atop", "destination-in", "destination-out
", "destination-over", "devanagari", "disc", "discard", "document", | |
67 "dot-dash", "dot-dot-dash", "dotted", "double", "down", "e-resize", "eas
e", "ease-in", "ease-in-out", "ease-out", "element", | |
68 "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede", "ethiopic-ab
egede-am-et", "ethiopic-abegede-gez", | |
69 "ethiopic-abegede-ti-er", "ethiopic-abegede-ti-et", "ethiopic-halehame-a
a-er", "ethiopic-halehame-aa-et", | |
70 "ethiopic-halehame-am-et", "ethiopic-halehame-gez", "ethiopic-halehame-o
m-et", "ethiopic-halehame-sid-et", | |
71 "ethiopic-halehame-so-et", "ethiopic-halehame-ti-er", "ethiopic-halehame
-ti-et", "ethiopic-halehame-tig", "ew-resize", "expanded", | |
72 "extra-condensed", "extra-expanded", "fantasy", "fast", "fill", "fixed",
"flat", "footnotes", "forwards", "from", "geometricPrecision", | |
73 "georgian", "graytext", "groove", "gujarati", "gurmukhi", "hand", "hangu
l", "hangul-consonant", "hebrew", "help", | |
74 "hidden", "hide", "higher", "highlight", "highlighttext", "hiragana", "h
iragana-iroha", "horizontal", "hsl", "hsla", "icon", "ignore", | |
75 "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite",
"infobackground", "infotext", "inherit", "initial", "inline", | |
76 "inline-axis", "inline-block", "inline-table", "inset", "inside", "intri
nsic", "invert", "italic", "justify", "kannada", "katakana", | |
77 "katakana-iroha", "khmer", "landscape", "lao", "large", "larger", "left"
, "level", "lighter", "line-through", "linear", "lines", | |
78 "list-item", "listbox", "listitem", "local", "logical", "loud", "lower",
"lower-alpha", "lower-armenian", "lower-greek", | |
79 "lower-hexadecimal", "lower-latin", "lower-norwegian", "lower-roman", "l
owercase", "ltr", "malayalam", "match", "media-controls-background", | |
80 "media-current-time-display", "media-fullscreen-button", "media-mute-but
ton", "media-play-button", "media-return-to-realtime-button", | |
81 "media-rewind-button", "media-seek-back-button", "media-seek-forward-but
ton", "media-slider", "media-sliderthumb", "media-time-remaining-display", | |
82 "media-volume-slider", "media-volume-slider-container", "media-volume-sl
iderthumb", "medium", "menu", "menulist", "menulist-button", | |
83 "menulist-text", "menulist-textfield", "menutext", "message-box", "middl
e", "min-intrinsic", "mix", "mongolian", "monospace", "move", "multiple", | |
84 "myanmar", "n-resize", "narrower", "navy", "ne-resize", "nesw-resize", "
no-close-quote", "no-drop", "no-open-quote", "no-repeat", "none", | |
85 "normal", "not-allowed", "nowrap", "ns-resize", "nw-resize", "nwse-resiz
e", "oblique", "octal", "open-quote", "optimizeLegibility", | |
86 "optimizeSpeed", "oriya", "oromo", "outset", "outside", "overlay", "over
line", "padding", "padding-box", "painted", "paused", | |
87 "persian", "plus-darker", "plus-lighter", "pointer", "portrait", "pre",
"pre-line", "pre-wrap", "preserve-3d", "progress", | |
88 "push-button", "radio", "read-only", "read-write", "read-write-plaintext
-only", "relative", "repeat", "repeat-x", | |
89 "repeat-y", "reset", "reverse", "rgb", "rgba", "ridge", "right", "round"
, "row-resize", "rtl", "run-in", "running", "s-resize", "sans-serif", | |
90 "scroll", "scrollbar", "se-resize", "searchfield", "searchfield-cancel-b
utton", "searchfield-decoration", "searchfield-results-button", | |
91 "searchfield-results-decoration", "semi-condensed", "semi-expanded", "se
parate", "serif", "show", "sidama", "single", | |
92 "skip-white-space", "slide", "slider-horizontal", "slider-vertical", "sl
iderthumb-horizontal", "sliderthumb-vertical", "slow", | |
93 "small", "small-caps", "small-caption", "smaller", "solid", "somali", "s
ource-atop", "source-in", "source-out", "source-over", | |
94 "space", "square", "square-button", "start", "static", "status-bar", "st
retch", "stroke", "sub", "subpixel-antialiased", "super", | |
95 "sw-resize", "table", "table-caption", "table-cell", "table-column", "ta
ble-column-group", "table-footer-group", "table-header-group", | |
96 "table-row", "table-row-group", "telugu", "text", "text-bottom", "text-t
op", "textarea", "textfield", "thai", "thick", "thin", | |
97 "threeddarkshadow", "threedface", "threedhighlight", "threedlightshadow"
, "threedshadow", "tibetan", "tigre", "tigrinya-er", "tigrinya-er-abegede", | |
98 "tigrinya-et", "tigrinya-et-abegede", "to", "top", "transparent", "ultra
-condensed", "ultra-expanded", "underline", "up", "upper-alpha", "upper-armenian
", | |
99 "upper-greek", "upper-hexadecimal", "upper-latin", "upper-norwegian", "u
pper-roman", "uppercase", "urdu", "url", "vertical", "vertical-text", "visible", | |
100 "visibleFill", "visiblePainted", "visibleStroke", "visual", "w-resize",
"wait", "wave", "white", "wider", "window", "windowframe", "windowtext", | |
101 "x-large", "x-small", "xor", "xx-large", "xx-small", "yellow", "-wap-mar
quee", "-webkit-activelink", "-webkit-auto", "-webkit-baseline-middle", | |
102 "-webkit-body", "-webkit-box", "-webkit-center", "-webkit-control", "-we
bkit-focus-ring-color", "-webkit-grab", "-webkit-grabbing", | |
103 "-webkit-gradient", "-webkit-inline-box", "-webkit-left", "-webkit-link"
, "-webkit-marquee", "-webkit-mini-control", "-webkit-nowrap", "-webkit-pictogra
ph", | |
104 "-webkit-right", "-webkit-small-control", "-webkit-text", "-webkit-xxx-l
arge", "-webkit-zoom-in", "-webkit-zoom-out", | |
105 ].keySet(); | |
106 | |
107 this._scssValueKeywords = [ | |
108 "abs", "adjust-color", "adjust-hue", "alpha", "append", "ceil", "change-
color", "comparable", "complement", "darken", "desaturate", | |
109 "fade-in", "fade-out", "floor", "grayscale", "hue", "ie-hex-str", "inver
t", "join", "length", "lighten", | |
110 "lightness", "max", "min", "mix", "nth", "opacify", "opacity", "percenta
ge", "quote", "round", "saturate", | |
111 "saturation", "scale-color", "transparentize", "type-of", "unit", "unitl
ess", "unquote", "zip" | |
112 ].keySet(); | |
113 | |
114 this._lexConditions = { | |
115 INITIAL: 0, | |
116 COMMENT: 1, | |
117 DSTRING: 2, | |
118 SSTRING: 3 | |
119 }; | |
120 | |
121 this._parseConditions = { | |
122 INITIAL: 0, | |
123 PROPERTY: 1, | |
124 PROPERTY_VALUE: 2, | |
125 AT_RULE: 3, | |
126 AT_MEDIA_RULE: 4 | |
127 }; | |
128 | |
129 this.case_INITIAL = 1000; | |
130 this.case_COMMENT = 1002; | |
131 this.case_DSTRING = 1003; | |
132 this.case_SSTRING = 1004; | |
133 | |
134 this.condition = this.createInitialCondition(); | |
135 } | |
136 | |
137 WebInspector.SourceCSSTokenizer.SCSSAtRelatedKeywords = ["from", "if", "in", "th
rough"].keySet(); | |
138 | |
139 WebInspector.SourceCSSTokenizer.MediaTypes = ["all", "aural", "braille", "emboss
ed", "handheld", "import", "print", "projection", "screen", "tty", "tv"].keySet(
); | |
140 | |
141 WebInspector.SourceCSSTokenizer.prototype = { | |
142 createInitialCondition: function() | |
143 { | |
144 return { lexCondition: this._lexConditions.INITIAL, parseCondition: this
._parseConditions.INITIAL }; | |
145 }, | |
146 | |
147 /** | |
148 * @param {boolean=} stringEnds | |
149 */ | |
150 _stringToken: function(cursor, stringEnds) | |
151 { | |
152 if (this._isPropertyValue()) | |
153 this.tokenType = "css-string"; | |
154 else | |
155 this.tokenType = null; | |
156 return cursor; | |
157 }, | |
158 | |
159 _isPropertyValue: function() | |
160 { | |
161 return this._condition.parseCondition === this._parseConditions.PROPERTY
_VALUE || this._condition.parseCondition === this._parseConditions.AT_RULE; | |
162 }, | |
163 | |
164 _setParseCondition: function(condition) | |
165 { | |
166 this._condition.parseCondition = condition; | |
167 }, | |
168 | |
169 nextToken: function(cursor) | |
170 { | |
171 var cursorOnEnter = cursor; | |
172 var gotoCase = 1; | |
173 var YYMARKER; | |
174 while (1) { | |
175 switch (gotoCase) | |
176 // Following comment is replaced with generated state machine. | |
177 /*!re2c | |
178 re2c:define:YYCTYPE = "var"; | |
179 re2c:define:YYCURSOR = cursor; | |
180 re2c:define:YYGETCONDITION = "this.getLexCondition"; | |
181 re2c:define:YYSETCONDITION = "this.setLexCondition"; | |
182 re2c:condprefix = "case this.case_"; | |
183 re2c:condenumprefix = "this._lexConditions."; | |
184 re2c:yyfill:enable = 0; | |
185 re2c:labelprefix = "case "; | |
186 re2c:indent:top = 2; | |
187 re2c:indent:string = " "; | |
188 | |
189 CommentContent = ([^*\r\n] | ("*"+[^/*]))*; | |
190 Comment = "/*" CommentContent "*"+ "/"; | |
191 CommentStart = "/*" CommentContent [\r\n]; | |
192 CommentEnd = CommentContent "*"+ "/"; | |
193 | |
194 OpenCurlyBracket = "{"; | |
195 CloseCurlyBracket = "}"; | |
196 | |
197 Colon = ":"; | |
198 Semicolon = ";"; | |
199 | |
200 NumericLiteral = "-"? ([0-9]+ | [0-9]* "." [0-9]+) ("em" | "rem
" | "__qem" | "ex" | "px" | "cm" | | |
201 "mm" | "in" | "pt" | "pc" | "deg" | "rad" | "grad" | "turn"
| "ms" | "s" | "Hz" | "kHz" | "%")?; | |
202 | |
203 ColorOrSelector = "#" [0-9A-Za-z]+; | |
204 Identifier = [@!_\-0-9a-zA-Z\[\]='"/&]+; | |
205 Variable = "$" Identifier; | |
206 | |
207 DoubleStringContent = ([^\r\n\"\\] | "\\" ['"\\bfnrtv])*; | |
208 SingleStringContent = ([^\r\n\'\\] | "\\" ['"\\bfnrtv])*; | |
209 StringLiteral = "\"" DoubleStringContent "\"" | "'" SingleString
Content "'"; | |
210 DoubleStringStart = "\"" DoubleStringContent "\\" [\r\n]; | |
211 DoubleStringEnd = DoubleStringContent "\""; | |
212 SingleStringStart = "'" SingleStringContent "\\" [\r\n]; | |
213 SingleStringEnd = SingleStringContent "'"; | |
214 | |
215 <INITIAL> Comment { this.tokenType = "css-comment"; return curso
r; } | |
216 <INITIAL> CommentStart => COMMENT { this.tokenType = "css-commen
t"; return cursor; } | |
217 <COMMENT> CommentContent => COMMENT { this.tokenType = "css-comm
ent"; return cursor; } | |
218 <COMMENT> CommentEnd => INITIAL { this.tokenType = "css-comment"
; return cursor; } | |
219 | |
220 <INITIAL> StringLiteral { return this._stringToken(cursor, true)
; } | |
221 <INITIAL> DoubleStringStart => DSTRING { return this._stringToke
n(cursor); } | |
222 <DSTRING> DoubleStringContent => DSTRING { return this._stringTo
ken(cursor); } | |
223 <DSTRING> DoubleStringEnd => INITIAL { return this._stringToken(
cursor, true); } | |
224 <INITIAL> SingleStringStart => SSTRING { return this._stringToke
n(cursor); } | |
225 <SSTRING> SingleStringContent => SSTRING { return this._stringTo
ken(cursor); } | |
226 <SSTRING> SingleStringEnd => INITIAL { return this._stringToken(
cursor, true); } | |
227 | |
228 <INITIAL> OpenCurlyBracket | |
229 { | |
230 this.tokenType = "block-start"; | |
231 this._condition.openBraces = (this._condition.openBraces ||
0) + 1; | |
232 if (this._condition.parseCondition === this._parseConditions
.AT_MEDIA_RULE) | |
233 this._setParseCondition(this._parseConditions.INITIAL); | |
234 else | |
235 this._setParseCondition(this._parseConditions.PROPERTY); | |
236 return cursor; | |
237 } | |
238 | |
239 <INITIAL> CloseCurlyBracket | |
240 { | |
241 this.tokenType = "block-end"; | |
242 if (this._condition.openBraces > 0) | |
243 --this._condition.openBraces; | |
244 this._setParseCondition(this._condition.openBraces ? this._p
arseConditions.PROPERTY : this._parseConditions.INITIAL); | |
245 delete this._condition.atKeyword; | |
246 return cursor; | |
247 } | |
248 | |
249 <INITIAL> Colon | |
250 { | |
251 this.tokenType = null; | |
252 if (this._condition.parseCondition === this._parseConditions
.PROPERTY || this._condition.parseCondition === this._parseConditions.INITIAL) | |
253 this._setParseCondition(this._parseConditions.PROPERTY_V
ALUE); | |
254 return cursor; | |
255 } | |
256 | |
257 <INITIAL> Semicolon | |
258 { | |
259 this.tokenType = null; | |
260 this._setParseCondition(this._condition.openBraces ? this._p
arseConditions.PROPERTY : this._parseConditions.INITIAL); | |
261 delete this._condition.atKeyword; | |
262 return cursor; | |
263 } | |
264 | |
265 <INITIAL> NumericLiteral | |
266 { | |
267 if (this._isPropertyValue()) | |
268 this.tokenType = "css-number"; | |
269 else | |
270 this.tokenType = null; | |
271 return cursor; | |
272 } | |
273 | |
274 <INITIAL> ColorOrSelector | |
275 { | |
276 if (this._isPropertyValue()) | |
277 this.tokenType = "css-color"; | |
278 else if (this._condition.parseCondition === this._parseCondi
tions.INITIAL) | |
279 this.tokenType = "css-selector"; | |
280 else | |
281 this.tokenType = null; | |
282 return cursor; | |
283 } | |
284 | |
285 <INITIAL> Variable | |
286 { | |
287 if (this._condition.parseCondition === this._condition.parse
Condition.INITIAL || this._condition.parseCondition === this._condition.parseCon
dition.AT_RULE) | |
288 this._setParseCondition(this._parseConditions.PROPERTY); | |
289 this.tokenType = "scss-variable"; | |
290 return cursor; | |
291 } | |
292 | |
293 <INITIAL> Identifier | |
294 { | |
295 var token = this._line.substring(cursorOnEnter, cursor); | |
296 this.tokenType = null; | |
297 if (this._condition.parseCondition === this._parseConditions
.INITIAL || this._condition.parseCondition === this._parseConditions.PROPERTY) { | |
298 if (token.charAt(0) === "@") { | |
299 this.tokenType = "css-at-rule"; | |
300 this._setParseCondition(token === "@media" ? this._p
arseConditions.AT_MEDIA_RULE : this._parseConditions.AT_RULE); | |
301 this._condition.atKeyword = token; | |
302 } else if (this._condition.parseCondition === this._pars
eConditions.INITIAL) | |
303 this.tokenType = "css-selector"; | |
304 else if (this._propertyKeywords.hasOwnProperty(token)) | |
305 this.tokenType = "css-property"; | |
306 } else if (this._condition.parseCondition === this._parseCon
ditions.AT_MEDIA_RULE || this._condition.parseCondition === this._parseCondition
s.AT_RULE) { | |
307 if (WebInspector.SourceCSSTokenizer.SCSSAtRelatedKeyword
s.hasOwnProperty(token)) | |
308 this.tokenType = "css-at-rule"; | |
309 else if (WebInspector.SourceCSSTokenizer.MediaTypes.hasO
wnProperty(token)) | |
310 this.tokenType = "css-keyword"; | |
311 } | |
312 if (this.tokenType) | |
313 return cursor; | |
314 | |
315 if (this._isPropertyValue()) { | |
316 var firstChar = token.charAt(0); | |
317 if (firstChar === "$") | |
318 this.tokenType = "scss-variable"; | |
319 else if (firstChar === "!") | |
320 this.tokenType = "css-bang-keyword"; | |
321 else if (this._condition.atKeyword === "@extend") | |
322 this.tokenType = "css-selector"; | |
323 else if (this._valueKeywords.hasOwnProperty(token) || th
is._scssValueKeywords.hasOwnProperty(token)) | |
324 this.tokenType = "css-keyword"; | |
325 else if (this._colorKeywords.hasOwnProperty(token)) { | |
326 // FIXME: this does not convert tokens toLowerCase()
for the sake of speed. | |
327 this.tokenType = "css-color"; | |
328 } | |
329 } else if (this._condition.parseCondition !== this._parseCon
ditions.PROPERTY_VALUE) | |
330 this.tokenType = "css-selector"; | |
331 return cursor; | |
332 } | |
333 <*> [^] { this.tokenType = null; return cursor; } | |
334 */ | |
335 } | |
336 }, | |
337 | |
338 __proto__: WebInspector.SourceTokenizer.prototype | |
339 } | |
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