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Issue 22638008: DevTools: Use CodeMirror modes instead of highlight tokenizers (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: address comments Created 7 years, 4 months ago
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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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