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// re2c -isc WebCore/inspector/front-end/SourceCSSTokenizer.re2js \ 34// | sed 's|^yy\([^:]*\)*\:|case \1:|' \ 35// | sed 's|[*]cursor[+][+]|this._charAt(cursor++)|' \ 36// | sed 's|[[*][+][+]cursor|this._charAt(++cursor)|' \ 37// | sed 's|[*]cursor|this._charAt(cursor)|' \ 38// | sed 's|yych = \*\([^;]*\)|yych = this._charAt\1|' \ 39// | sed 's|goto case \([^;]*\)|{ gotoCase = \1; continue; }|' \ 40// | sed 's|unsigned\ int|var|' \ 41// | sed 's|var\ yych|case 1: var yych|' 42 43WebInspector.SourceCSSTokenizer = function() 44{ 45 WebInspector.SourceTokenizer.call(this); 46 47 this._propertyKeywords = WebInspector.cssNameCompletions.keySet(); 48 49 this._valueKeywords = [ 50 "above", "absolute", "activeborder", "activecaption", "afar", "after-white-space", "ahead", "alias", "all", "all-scroll", 51 "alternate", "always","amharic", "amharic-abegede", "antialiased", "appworkspace", "aqua", "arabic-indic", "armenian", "asterisks", 52 "auto", "avoid", "background", "backwards", "baseline", "below", "bidi-override", "binary", "bengali", "black", "blink", 53 "block", "block-axis", "blue", "bold", "bolder", "border", "border-box", "both", "bottom", "break-all", "break-word", "button", 54 "button-bevel", "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "cambodian", "capitalize", "caps-lock-indicator", 55 "caption", "captiontext", "caret", "cell", "center", "checkbox", "circle", "cjk-earthly-branch", "cjk-heavenly-stem", "cjk-ideographic", 56 "clear", "clip", "close-quote", "col-resize", "collapse", "compact", "condensed", "contain", "content", "content-box", "context-menu", 57 "continuous", "copy", "cover", "crop", "cross", "crosshair", "currentcolor", "cursive", "dashed", "decimal", "decimal-leading-zero", "default", 58 "default-button", "destination-atop", "destination-in", "destination-out", "destination-over", "devanagari", "disc", "discard", "document", 59 "dot-dash", "dot-dot-dash", "dotted", "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out", "element", 60 "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede", "ethiopic-abegede-am-et", "ethiopic-abegede-gez", 61 "ethiopic-abegede-ti-er", "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er", "ethiopic-halehame-aa-et", 62 "ethiopic-halehame-am-et", "ethiopic-halehame-gez", "ethiopic-halehame-om-et", "ethiopic-halehame-sid-et", 63 "ethiopic-halehame-so-et", "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig", "ew-resize", "expanded", 64 "extra-condensed", "extra-expanded", "fantasy", "fast", "fill", "fixed", "flat", "footnotes", "forwards", "from", "fuchsia", "geometricPrecision", 65 "georgian", "gray", "graytext", "green", "grey", "groove", "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hebrew", "help", 66 "hidden", "hide", "higher", "highlight", "highlighttext", "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "icon", "ignore", 67 "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite", "infobackground", "infotext", "inherit", "initial", "inline", 68 "inline-axis", "inline-block", "inline-table", "inset", "inside", "intrinsic", "invert", "italic", "justify", "kannada", "katakana", 69 "katakana-iroha", "khmer", "landscape", "lao", "large", "larger", "left", "level", "lighter", "lime", "line-through", "linear", "lines", 70 "list-button", "list-item", "listbox", "listitem", "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian", "lower-greek", 71 "lower-hexadecimal", "lower-latin", "lower-norwegian", "lower-roman", "lowercase", "ltr", "malayalam", "maroon", "match", "media-controls-background", 72 "media-current-time-display", "media-fullscreen-button", "media-mute-button", "media-play-button", "media-return-to-realtime-button", 73 "media-rewind-button", "media-seek-back-button", "media-seek-forward-button", "media-slider", "media-sliderthumb", "media-time-remaining-display", 74 "media-volume-slider", "media-volume-slider-container", "media-volume-sliderthumb", "medium", "menu", "menulist", "menulist-button", 75 "menulist-text", "menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic", "mix", "mongolian", "monospace", "move", "multiple", 76 "myanmar", "n-resize", "narrower", "navy", "ne-resize", "nesw-resize", "no-close-quote", "no-drop", "no-open-quote", "no-repeat", "none", 77 "normal", "not-allowed", "nowrap", "ns-resize", "nw-resize", "nwse-resize", "oblique", "octal", "olive", "open-quote", "optimizeLegibility", 78 "optimizeSpeed", "orange", "oriya", "oromo", "outset", "outside", "overlay", "overline", "padding", "padding-box", "painted", "paused", 79 "persian", "plus-darker", "plus-lighter", "pointer", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d", "progress", "purple", 80 "push-button", "radio", "read-only", "read-write", "read-write-plaintext-only", "red", "relative", "repeat", "repeat-x", 81 "repeat-y", "reset", "reverse", "rgb", "rgba", "ridge", "right", "round", "row-resize", "rtl", "run-in", "running", "s-resize", "sans-serif", 82 "scroll", "scrollbar", "se-resize", "searchfield", "searchfield-cancel-button", "searchfield-decoration", "searchfield-results-button", 83 "searchfield-results-decoration", "semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama", "silver", "single", 84 "skip-white-space", "slide", "slider-horizontal", "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow", 85 "small", "small-caps", "small-caption", "smaller", "solid", "somali", "source-atop", "source-in", "source-out", "source-over", 86 "space", "square", "square-button", "start", "static", "status-bar", "stretch", "stroke", "sub", "subpixel-antialiased", "super", 87 "sw-resize", "table", "table-caption", "table-cell", "table-column", "table-column-group", "table-footer-group", "table-header-group", 88 "table-row", "table-row-group", "teal", "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai", "thick", "thin", 89 "threeddarkshadow", "threedface", "threedhighlight", "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er", "tigrinya-er-abegede", 90 "tigrinya-et", "tigrinya-et-abegede", "to", "top", "transparent", "ultra-condensed", "ultra-expanded", "underline", "up", "upper-alpha", "upper-armenian", 91 "upper-greek", "upper-hexadecimal", "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url", "vertical", "vertical-text", "visible", 92 "visibleFill", "visiblePainted", "visibleStroke", "visual", "w-resize", "wait", "wave", "white", "wider", "window", "windowframe", "windowtext", 93 "x-large", "x-small", "xor", "xx-large", "xx-small", "yellow", "-wap-marquee", "-webkit-activelink", "-webkit-auto", "-webkit-baseline-middle", 94 "-webkit-body", "-webkit-box", "-webkit-center", "-webkit-control", "-webkit-focus-ring-color", "-webkit-grab", "-webkit-grabbing", 95 "-webkit-gradient", "-webkit-inline-box", "-webkit-left", "-webkit-link", "-webkit-marquee", "-webkit-mini-control", "-webkit-nowrap", "-webkit-right", 96 "-webkit-small-control", "-webkit-text", "-webkit-xxx-large", "-webkit-zoom-in", "-webkit-zoom-out", 97 ].keySet(); 98 99 this._mediaTypes = ["all", "aural", "braille", "embossed", "handheld", "import", "print", "projection", "screen", "tty", "tv"].keySet(); 100 101 this._lexConditions = { 102 INITIAL: 0, 103 COMMENT: 1, 104 DSTRING: 2, 105 SSTRING: 3 106 }; 107 108 this._parseConditions = { 109 INITIAL: 0, 110 PROPERTY: 1, 111 PROPERTY_VALUE: 2, 112 AT_RULE: 3 113 }; 114 115 this.case_INITIAL = 1000; 116 this.case_COMMENT = 1002; 117 this.case_DSTRING = 1003; 118 this.case_SSTRING = 1004; 119 120 this.initialCondition = { lexCondition: this._lexConditions.INITIAL, parseCondition: this._parseConditions.INITIAL } 121} 122 123WebInspector.SourceCSSTokenizer.prototype = { 124 _stringToken: function(cursor, stringEnds) 125 { 126 if (this._isPropertyValue()) 127 this.tokenType = "css-string"; 128 else 129 this.tokenType = null; 130 return cursor; 131 }, 132 133 _isPropertyValue: function() 134 { 135 return this._condition.parseCondition === this._parseConditions.PROPERTY_VALUE || this._condition.parseCondition === this._parseConditions.AT_RULE; 136 }, 137 138 nextToken: function(cursor) 139 { 140 var cursorOnEnter = cursor; 141 var gotoCase = 1; 142 while (1) { 143 switch (gotoCase) 144 // Following comment is replaced with generated state machine. 145 /*!re2c 146 re2c:define:YYCTYPE = "var"; 147 re2c:define:YYCURSOR = cursor; 148 re2c:define:YYGETCONDITION = "this.getLexCondition"; 149 re2c:define:YYSETCONDITION = "this.setLexCondition"; 150 re2c:condprefix = "case this.case_"; 151 re2c:condenumprefix = "this._lexConditions."; 152 re2c:yyfill:enable = 0; 153 re2c:labelprefix = "case "; 154 re2c:indent:top = 2; 155 re2c:indent:string = " "; 156 157 CommentContent = ([^*\r\n] | ("*"+[^/*]))*; 158 Comment = "/*" CommentContent "*"+ "/"; 159 CommentStart = "/*" CommentContent [\r\n]; 160 CommentEnd = CommentContent "*"+ "/"; 161 162 OpenCurlyBracket = "{"; 163 CloseCurlyBracket = "}"; 164 165 Colon = ":"; 166 Semicolon = ";"; 167 168 NumericLiteral = "-"? ([0-9]+ | [0-9]* "." [0-9]+) ("em" | "rem" | "__qem" | "ex" | "px" | "cm" | 169 "mm" | "in" | "pt" | "pc" | "deg" | "rad" | "grad" | "turn" | "ms" | "s" | "Hz" | "kHz" | "%")?; 170 171 Identifier = [@!_\-$0-9a-zA-Z\[\]='"/]+; 172 173 DoubleStringContent = ([^\r\n\"\\] | "\\" ['"\\bfnrtv])*; 174 SingleStringContent = ([^\r\n\'\\] | "\\" ['"\\bfnrtv])*; 175 StringLiteral = "\"" DoubleStringContent "\"" | "'" SingleStringContent "'"; 176 DoubleStringStart = "\"" DoubleStringContent "\\" [\r\n]; 177 DoubleStringEnd = DoubleStringContent "\""; 178 SingleStringStart = "'" SingleStringContent "\\" [\r\n]; 179 SingleStringEnd = SingleStringContent "'"; 180 181 <INITIAL> Comment { this.tokenType = "css-comment"; return cursor; } 182 <INITIAL> CommentStart => COMMENT { this.tokenType = "css-comment"; return cursor; } 183 <COMMENT> CommentContent => COMMENT { this.tokenType = "css-comment"; return cursor; } 184 <COMMENT> CommentEnd => INITIAL { this.tokenType = "css-comment"; return cursor; } 185 186 <INITIAL> StringLiteral { return this._stringToken(cursor, true); } 187 <INITIAL> DoubleStringStart => DSTRING { return this._stringToken(cursor); } 188 <DSTRING> DoubleStringContent => DSTRING { return this._stringToken(cursor); } 189 <DSTRING> DoubleStringEnd => INITIAL { return this._stringToken(cursor, true); } 190 <INITIAL> SingleStringStart => SSTRING { return this._stringToken(cursor); } 191 <SSTRING> SingleStringContent => SSTRING { return this._stringToken(cursor); } 192 <SSTRING> SingleStringEnd => INITIAL { return this._stringToken(cursor, true); } 193 194 <INITIAL> OpenCurlyBracket 195 { 196 this.tokenType = null; 197 if (this._condition.parseCondition === this._parseConditions.AT_RULE) 198 this._condition.parseCondition = this._parseConditions.INITIAL; 199 else 200 this._condition.parseCondition = this._parseConditions.PROPERTY; 201 return cursor; 202 } 203 204 <INITIAL> CloseCurlyBracket 205 { 206 this.tokenType = null; 207 this._condition.parseCondition = this._parseConditions.INITIAL; 208 return cursor; 209 } 210 211 <INITIAL> Colon 212 { 213 this.tokenType = null; 214 if (this._condition.parseCondition === this._parseConditions.PROPERTY) 215 this._condition.parseCondition = this._parseConditions.PROPERTY_VALUE; 216 return cursor; 217 } 218 219 <INITIAL> Semicolon 220 { 221 this.tokenType = null; 222 if (this._condition.parseCondition === this._parseConditions.AT_RULE) 223 this._condition.parseCondition = this._parseConditions.INITIAL; 224 else 225 this._condition.parseCondition = this._parseConditions.PROPERTY; 226 return cursor; 227 } 228 229 <INITIAL> NumericLiteral 230 { 231 if (this._isPropertyValue()) 232 this.tokenType = "css-number"; 233 else 234 this.tokenType = null; 235 return cursor; 236 } 237 238 <INITIAL> Identifier 239 { 240 var token = this._line.substring(cursorOnEnter, cursor); 241 if (this._condition.parseCondition === this._parseConditions.INITIAL) { 242 if (token === "@import" || token === "@media") { 243 this.tokenType = "css-at-rule"; 244 this._condition.parseCondition = this._parseConditions.AT_RULE; 245 } else if (token.indexOf("@") === 0) 246 this.tokenType = "css-at-rule"; 247 else 248 this.tokenType = "css-selector"; 249 } 250 else if (this._condition.parseCondition === this._parseConditions.AT_RULE && token in this._mediaTypes) 251 this.tokenType = "css-keyword"; 252 else if (this._condition.parseCondition === this._parseConditions.PROPERTY && token in this._propertyKeywords) 253 this.tokenType = "css-property"; 254 else if (this._isPropertyValue() && token in this._valueKeywords) 255 this.tokenType = "css-keyword"; 256 else if (token === "!important") 257 this.tokenType = "css-important"; 258 else 259 this.tokenType = null; 260 return cursor; 261 } 262 <*> [^] { this.tokenType = null; return cursor; } 263 */ 264 } 265 } 266} 267 268WebInspector.SourceCSSTokenizer.prototype.__proto__ = WebInspector.SourceTokenizer.prototype; 269