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eval-desempeno-v2/public/plugins/codemirror/mode/stylus/stylus.js

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  1. // CodeMirror, copyright (c) by Marijn Haverbeke and others

  2. // Distributed under an MIT license: https://codemirror.net/LICENSE

  3. 

  4. // Stylus mode created by Dmitry Kiselyov http://git.io/AaRB

  5. 

  6. (function(mod) {

  7.   if (typeof exports == "object" && typeof module == "object") // CommonJS

  8.     mod(require("../../lib/codemirror"));

  9.   else if (typeof define == "function" && define.amd) // AMD

  10.     define(["../../lib/codemirror"], mod);

  11.   else // Plain browser env

  12.     mod(CodeMirror);

  13. })(function(CodeMirror) {

  14.   "use strict";

  15. 

  16.   CodeMirror.defineMode("stylus", function(config) {

  17.     var indentUnit = config.indentUnit,

  18.         indentUnitString = '',

  19.         tagKeywords = keySet(tagKeywords_),

  20.         tagVariablesRegexp = /^(a|b|i|s|col|em)$/i,

  21.         propertyKeywords = keySet(propertyKeywords_),

  22.         nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_),

  23.         valueKeywords = keySet(valueKeywords_),

  24.         colorKeywords = keySet(colorKeywords_),

  25.         documentTypes = keySet(documentTypes_),

  26.         documentTypesRegexp = wordRegexp(documentTypes_),

  27.         mediaFeatures = keySet(mediaFeatures_),

  28.         mediaTypes = keySet(mediaTypes_),

  29.         fontProperties = keySet(fontProperties_),

  30.         operatorsRegexp = /^\s*([.]{2,3}|&&|\|\||\*\*|[?!=:]?=|[-+*\/%<>]=?|\?:|\~)/,

  31.         wordOperatorKeywordsRegexp = wordRegexp(wordOperatorKeywords_),

  32.         blockKeywords = keySet(blockKeywords_),

  33.         vendorPrefixesRegexp = new RegExp(/^\-(moz|ms|o|webkit)-/i),

  34.         commonAtoms = keySet(commonAtoms_),

  35.         firstWordMatch = "",

  36.         states = {},

  37.         ch,

  38.         style,

  39.         type,

  40.         override;

  41. 

  42.     while (indentUnitString.length < indentUnit) indentUnitString += ' ';

  43. 

  44.     /**

  45.      * Tokenizers

  46.      */

  47.     function tokenBase(stream, state) {

  48.       firstWordMatch = stream.string.match(/(^[\w-]+\s*=\s*$)|(^\s*[\w-]+\s*=\s*[\w-])|(^\s*(\.|#|@|\$|\&|\[|\d|\+|::?|\{|\>|~|\/)?\s*[\w-]*([a-z0-9-]|\*|\/\*)(\(|,)?)/);

  49.       state.context.line.firstWord = firstWordMatch ? firstWordMatch[0].replace(/^\s*/, "") : "";

  50.       state.context.line.indent = stream.indentation();

  51.       ch = stream.peek();

  52. 

  53.       // Line comment

  54.       if (stream.match("//")) {

  55.         stream.skipToEnd();

  56.         return ["comment", "comment"];

  57.       }

  58.       // Block comment

  59.       if (stream.match("/*")) {

  60.         state.tokenize = tokenCComment;

  61.         return tokenCComment(stream, state);

  62.       }

  63.       // String

  64.       if (ch == "\"" || ch == "'") {

  65.         stream.next();

  66.         state.tokenize = tokenString(ch);

  67.         return state.tokenize(stream, state);

  68.       }

  69.       // Def

  70.       if (ch == "@") {

  71.         stream.next();

  72.         stream.eatWhile(/[\w\\-]/);

  73.         return ["def", stream.current()];

  74.       }

  75.       // ID selector or Hex color

  76.       if (ch == "#") {

  77.         stream.next();

  78.         // Hex color

  79.         if (stream.match(/^[0-9a-f]{3}([0-9a-f]([0-9a-f]{2}){0,2})?\b(?!-)/i)) {

  80.           return ["atom", "atom"];

  81.         }

  82.         // ID selector

  83.         if (stream.match(/^[a-z][\w-]*/i)) {

  84.           return ["builtin", "hash"];

  85.         }

  86.       }

  87.       // Vendor prefixes

  88.       if (stream.match(vendorPrefixesRegexp)) {

  89.         return ["meta", "vendor-prefixes"];

  90.       }

  91.       // Numbers

  92.       if (stream.match(/^-?[0-9]?\.?[0-9]/)) {

  93.         stream.eatWhile(/[a-z%]/i);

  94.         return ["number", "unit"];

  95.       }

  96.       // !important|optional

  97.       if (ch == "!") {

  98.         stream.next();

  99.         return [stream.match(/^(important|optional)/i) ? "keyword": "operator", "important"];

  100.       }

  101.       // Class

  102.       if (ch == "." && stream.match(/^\.[a-z][\w-]*/i)) {

  103.         return ["qualifier", "qualifier"];

  104.       }

  105.       // url url-prefix domain regexp

  106.       if (stream.match(documentTypesRegexp)) {

  107.         if (stream.peek() == "(") state.tokenize = tokenParenthesized;

  108.         return ["property", "word"];

  109.       }

  110.       // Mixins / Functions

  111.       if (stream.match(/^[a-z][\w-]*\(/i)) {

  112.         stream.backUp(1);

  113.         return ["keyword", "mixin"];

  114.       }

  115.       // Block mixins

  116.       if (stream.match(/^(\+|-)[a-z][\w-]*\(/i)) {

  117.         stream.backUp(1);

  118.         return ["keyword", "block-mixin"];

  119.       }

  120.       // Parent Reference BEM naming

  121.       if (stream.string.match(/^\s*&/) && stream.match(/^[-_]+[a-z][\w-]*/)) {

  122.         return ["qualifier", "qualifier"];

  123.       }

  124.       // / Root Reference & Parent Reference

  125.       if (stream.match(/^(\/|&)(-|_|:|\.|#|[a-z])/)) {

  126.         stream.backUp(1);

  127.         return ["variable-3", "reference"];

  128.       }

  129.       if (stream.match(/^&{1}\s*$/)) {

  130.         return ["variable-3", "reference"];

  131.       }

  132.       // Word operator

  133.       if (stream.match(wordOperatorKeywordsRegexp)) {

  134.         return ["operator", "operator"];

  135.       }

  136.       // Word

  137.       if (stream.match(/^\$?[-_]*[a-z0-9]+[\w-]*/i)) {

  138.         // Variable

  139.         if (stream.match(/^(\.|\[)[\w-\'\"\]]+/i, false)) {

  140.           if (!wordIsTag(stream.current())) {

  141.             stream.match('.');

  142.             return ["variable-2", "variable-name"];

  143.           }

  144.         }

  145.         return ["variable-2", "word"];

  146.       }

  147.       // Operators

  148.       if (stream.match(operatorsRegexp)) {

  149.         return ["operator", stream.current()];

  150.       }

  151.       // Delimiters

  152.       if (/[:;,{}\[\]\(\)]/.test(ch)) {

  153.         stream.next();

  154.         return [null, ch];

  155.       }

  156.       // Non-detected items

  157.       stream.next();

  158.       return [null, null];

  159.     }

  160. 

  161.     /**

  162.      * Token comment

  163.      */

  164.     function tokenCComment(stream, state) {

  165.       var maybeEnd = false, ch;

  166.       while ((ch = stream.next()) != null) {

  167.         if (maybeEnd && ch == "/") {

  168.           state.tokenize = null;

  169.           break;

  170.         }

  171.         maybeEnd = (ch == "*");

  172.       }

  173.       return ["comment", "comment"];

  174.     }

  175. 

  176.     /**

  177.      * Token string

  178.      */

  179.     function tokenString(quote) {

  180.       return function(stream, state) {

  181.         var escaped = false, ch;

  182.         while ((ch = stream.next()) != null) {

  183.           if (ch == quote && !escaped) {

  184.             if (quote == ")") stream.backUp(1);

  185.             break;

  186.           }

  187.           escaped = !escaped && ch == "\\";

  188.         }

  189.         if (ch == quote || !escaped && quote != ")") state.tokenize = null;

  190.         return ["string", "string"];

  191.       };

  192.     }

  193. 

  194.     /**

  195.      * Token parenthesized

  196.      */

  197.     function tokenParenthesized(stream, state) {

  198.       stream.next(); // Must be "("

  199.       if (!stream.match(/\s*[\"\')]/, false))

  200.         state.tokenize = tokenString(")");

  201.       else

  202.         state.tokenize = null;

  203.       return [null, "("];

  204.     }

  205. 

  206.     /**

  207.      * Context management

  208.      */

  209.     function Context(type, indent, prev, line) {

  210.       this.type = type;

  211.       this.indent = indent;

  212.       this.prev = prev;

  213.       this.line = line || {firstWord: "", indent: 0};

  214.     }

  215. 

  216.     function pushContext(state, stream, type, indent) {

  217.       indent = indent >= 0 ? indent : indentUnit;

  218.       state.context = new Context(type, stream.indentation() + indent, state.context);

  219.       return type;

  220.     }

  221. 

  222.     function popContext(state, currentIndent) {

  223.       var contextIndent = state.context.indent - indentUnit;

  224.       currentIndent = currentIndent || false;

  225.       state.context = state.context.prev;

  226.       if (currentIndent) state.context.indent = contextIndent;

  227.       return state.context.type;

  228.     }

  229. 

  230.     function pass(type, stream, state) {

  231.       return states[state.context.type](type, stream, state);

  232.     }

  233. 

  234.     function popAndPass(type, stream, state, n) {

  235.       for (var i = n || 1; i > 0; i--)

  236.         state.context = state.context.prev;

  237.       return pass(type, stream, state);

  238.     }

  239. 

  240. 

  241.     /**

  242.      * Parser

  243.      */

  244.     function wordIsTag(word) {

  245.       return word.toLowerCase() in tagKeywords;

  246.     }

  247. 

  248.     function wordIsProperty(word) {

  249.       word = word.toLowerCase();

  250.       return word in propertyKeywords || word in fontProperties;

  251.     }

  252. 

  253.     function wordIsBlock(word) {

  254.       return word.toLowerCase() in blockKeywords;

  255.     }

  256. 

  257.     function wordIsVendorPrefix(word) {

  258.       return word.toLowerCase().match(vendorPrefixesRegexp);

  259.     }

  260. 

  261.     function wordAsValue(word) {

  262.       var wordLC = word.toLowerCase();

  263.       var override = "variable-2";

  264.       if (wordIsTag(word)) override = "tag";

  265.       else if (wordIsBlock(word)) override = "block-keyword";

  266.       else if (wordIsProperty(word)) override = "property";

  267.       else if (wordLC in valueKeywords || wordLC in commonAtoms) override = "atom";

  268.       else if (wordLC == "return" || wordLC in colorKeywords) override = "keyword";

  269. 

  270.       // Font family

  271.       else if (word.match(/^[A-Z]/)) override = "string";

  272.       return override;

  273.     }

  274. 

  275.     function typeIsBlock(type, stream) {

  276.       return ((endOfLine(stream) && (type == "{" || type == "]" || type == "hash" || type == "qualifier")) || type == "block-mixin");

  277.     }

  278. 

  279.     function typeIsInterpolation(type, stream) {

  280.       return type == "{" && stream.match(/^\s*\$?[\w-]+/i, false);

  281.     }

  282. 

  283.     function typeIsPseudo(type, stream) {

  284.       return type == ":" && stream.match(/^[a-z-]+/, false);

  285.     }

  286. 

  287.     function startOfLine(stream) {

  288.       return stream.sol() || stream.string.match(new RegExp("^\\s*" + escapeRegExp(stream.current())));

  289.     }

  290. 

  291.     function endOfLine(stream) {

  292.       return stream.eol() || stream.match(/^\s*$/, false);

  293.     }

  294. 

  295.     function firstWordOfLine(line) {

  296.       var re = /^\s*[-_]*[a-z0-9]+[\w-]*/i;

  297.       var result = typeof line == "string" ? line.match(re) : line.string.match(re);

  298.       return result ? result[0].replace(/^\s*/, "") : "";

  299.     }

  300. 

  301. 

  302.     /**

  303.      * Block

  304.      */

  305.     states.block = function(type, stream, state) {

  306.       if ((type == "comment" && startOfLine(stream)) ||

  307.           (type == "," && endOfLine(stream)) ||

  308.           type == "mixin") {

  309.         return pushContext(state, stream, "block", 0);

  310.       }

  311.       if (typeIsInterpolation(type, stream)) {

  312.         return pushContext(state, stream, "interpolation");

  313.       }

  314.       if (endOfLine(stream) && type == "]") {

  315.         if (!/^\s*(\.|#|:|\[|\*|&)/.test(stream.string) && !wordIsTag(firstWordOfLine(stream))) {

  316.           return pushContext(state, stream, "block", 0);

  317.         }

  318.       }

  319.       if (typeIsBlock(type, stream)) {

  320.         return pushContext(state, stream, "block");

  321.       }

  322.       if (type == "}" && endOfLine(stream)) {

  323.         return pushContext(state, stream, "block", 0);

  324.       }

  325.       if (type == "variable-name") {

  326.         if (stream.string.match(/^\s?\$[\w-\.\[\]\'\"]+$/) || wordIsBlock(firstWordOfLine(stream))) {

  327.           return pushContext(state, stream, "variableName");

  328.         }

  329.         else {

  330.           return pushContext(state, stream, "variableName", 0);

  331.         }

  332.       }

  333.       if (type == "=") {

  334.         if (!endOfLine(stream) && !wordIsBlock(firstWordOfLine(stream))) {

  335.           return pushContext(state, stream, "block", 0);

  336.         }

  337.         return pushContext(state, stream, "block");

  338.       }

  339.       if (type == "*") {

  340.         if (endOfLine(stream) || stream.match(/\s*(,|\.|#|\[|:|{)/,false)) {

  341.           override = "tag";

  342.           return pushContext(state, stream, "block");

  343.         }

  344.       }

  345.       if (typeIsPseudo(type, stream)) {

  346.         return pushContext(state, stream, "pseudo");

  347.       }

  348.       if (/@(font-face|media|supports|(-moz-)?document)/.test(type)) {

  349.         return pushContext(state, stream, endOfLine(stream) ? "block" : "atBlock");

  350.       }

  351.       if (/@(-(moz|ms|o|webkit)-)?keyframes$/.test(type)) {

  352.         return pushContext(state, stream, "keyframes");

  353.       }

  354.       if (/@extends?/.test(type)) {

  355.         return pushContext(state, stream, "extend", 0);

  356.       }

  357.       if (type && type.charAt(0) == "@") {

  358. 

  359.         // Property Lookup

  360.         if (stream.indentation() > 0 && wordIsProperty(stream.current().slice(1))) {

  361.           override = "variable-2";

  362.           return "block";

  363.         }

  364.         if (/(@import|@require|@charset)/.test(type)) {

  365.           return pushContext(state, stream, "block", 0);

  366.         }

  367.         return pushContext(state, stream, "block");

  368.       }

  369.       if (type == "reference" && endOfLine(stream)) {

  370.         return pushContext(state, stream, "block");

  371.       }

  372.       if (type == "(") {

  373.         return pushContext(state, stream, "parens");

  374.       }

  375. 

  376.       if (type == "vendor-prefixes") {

  377.         return pushContext(state, stream, "vendorPrefixes");

  378.       }

  379.       if (type == "word") {

  380.         var word = stream.current();

  381.         override = wordAsValue(word);

  382. 

  383.         if (override == "property") {

  384.           if (startOfLine(stream)) {

  385.             return pushContext(state, stream, "block", 0);

  386.           } else {

  387.             override = "atom";

  388.             return "block";

  389.           }

  390.         }

  391. 

  392.         if (override == "tag") {

  393. 

  394.           // tag is a css value

  395.           if (/embed|menu|pre|progress|sub|table/.test(word)) {

  396.             if (wordIsProperty(firstWordOfLine(stream))) {

  397.               override = "atom";

  398.               return "block";

  399.             }

  400.           }

  401. 

  402.           // tag is an attribute

  403.           if (stream.string.match(new RegExp("\\[\\s*" + word + "|" + word +"\\s*\\]"))) {

  404.             override = "atom";

  405.             return "block";

  406.           }

  407. 

  408.           // tag is a variable

  409.           if (tagVariablesRegexp.test(word)) {

  410.             if ((startOfLine(stream) && stream.string.match(/=/)) ||

  411.                 (!startOfLine(stream) &&

  412.                  !stream.string.match(/^(\s*\.|#|\&|\[|\/|>|\*)/) &&

  413.                  !wordIsTag(firstWordOfLine(stream)))) {

  414.               override = "variable-2";

  415.               if (wordIsBlock(firstWordOfLine(stream)))  return "block";

  416.               return pushContext(state, stream, "block", 0);

  417.             }

  418.           }

  419. 

  420.           if (endOfLine(stream)) return pushContext(state, stream, "block");

  421.         }

  422.         if (override == "block-keyword") {

  423.           override = "keyword";

  424. 

  425.           // Postfix conditionals

  426.           if (stream.current(/(if|unless)/) && !startOfLine(stream)) {

  427.             return "block";

  428.           }

  429.           return pushContext(state, stream, "block");

  430.         }

  431.         if (word == "return") return pushContext(state, stream, "block", 0);

  432. 

  433.         // Placeholder selector

  434.         if (override == "variable-2" && stream.string.match(/^\s?\$[\w-\.\[\]\'\"]+$/)) {

  435.           return pushContext(state, stream, "block");

  436.         }

  437.       }

  438.       return state.context.type;

  439.     };

  440. 

  441. 

  442.     /**

  443.      * Parens

  444.      */

  445.     states.parens = function(type, stream, state) {

  446.       if (type == "(") return pushContext(state, stream, "parens");

  447.       if (type == ")") {

  448.         if (state.context.prev.type == "parens") {

  449.           return popContext(state);

  450.         }

  451.         if ((stream.string.match(/^[a-z][\w-]*\(/i) && endOfLine(stream)) ||

  452.             wordIsBlock(firstWordOfLine(stream)) ||

  453.             /(\.|#|:|\[|\*|&|>|~|\+|\/)/.test(firstWordOfLine(stream)) ||

  454.             (!stream.string.match(/^-?[a-z][\w-\.\[\]\'\"]*\s*=/) &&

  455.              wordIsTag(firstWordOfLine(stream)))) {

  456.           return pushContext(state, stream, "block");

  457.         }

  458.         if (stream.string.match(/^[\$-]?[a-z][\w-\.\[\]\'\"]*\s*=/) ||

  459.             stream.string.match(/^\s*(\(|\)|[0-9])/) ||

  460.             stream.string.match(/^\s+[a-z][\w-]*\(/i) ||

  461.             stream.string.match(/^\s+[\$-]?[a-z]/i)) {

  462.           return pushContext(state, stream, "block", 0);

  463.         }

  464.         if (endOfLine(stream)) return pushContext(state, stream, "block");

  465.         else return pushContext(state, stream, "block", 0);

  466.       }

  467.       if (type && type.charAt(0) == "@" && wordIsProperty(stream.current().slice(1))) {

  468.         override = "variable-2";

  469.       }

  470.       if (type == "word") {

  471.         var word = stream.current();

  472.         override = wordAsValue(word);

  473.         if (override == "tag" && tagVariablesRegexp.test(word)) {

  474.           override = "variable-2";

  475.         }

  476.         if (override == "property" || word == "to") override = "atom";

  477.       }

  478.       if (type == "variable-name") {

  479.         return pushContext(state, stream, "variableName");

  480.       }

  481.       if (typeIsPseudo(type, stream)) {

  482.         return pushContext(state, stream, "pseudo");

  483.       }

  484.       return state.context.type;

  485.     };

  486. 

  487. 

  488.     /**

  489.      * Vendor prefixes

  490.      */

  491.     states.vendorPrefixes = function(type, stream, state) {

  492.       if (type == "word") {

  493.         override = "property";

  494.         return pushContext(state, stream, "block", 0);

  495.       }

  496.       return popContext(state);

  497.     };

  498. 

  499. 

  500.     /**

  501.      * Pseudo

  502.      */

  503.     states.pseudo = function(type, stream, state) {

  504.       if (!wordIsProperty(firstWordOfLine(stream.string))) {

  505.         stream.match(/^[a-z-]+/);

  506.         override = "variable-3";

  507.         if (endOfLine(stream)) return pushContext(state, stream, "block");

  508.         return popContext(state);

  509.       }

  510.       return popAndPass(type, stream, state);

  511.     };

  512. 

  513. 

  514.     /**

  515.      * atBlock

  516.      */

  517.     states.atBlock = function(type, stream, state) {

  518.       if (type == "(") return pushContext(state, stream, "atBlock_parens");

  519.       if (typeIsBlock(type, stream)) {

  520.         return pushContext(state, stream, "block");

  521.       }

  522.       if (typeIsInterpolation(type, stream)) {

  523.         return pushContext(state, stream, "interpolation");

  524.       }

  525.       if (type == "word") {

  526.         var word = stream.current().toLowerCase();

  527.         if (/^(only|not|and|or)$/.test(word))

  528.           override = "keyword";

  529.         else if (documentTypes.hasOwnProperty(word))

  530.           override = "tag";

  531.         else if (mediaTypes.hasOwnProperty(word))

  532.           override = "attribute";

  533.         else if (mediaFeatures.hasOwnProperty(word))

  534.           override = "property";

  535.         else if (nonStandardPropertyKeywords.hasOwnProperty(word))

  536.           override = "string-2";

  537.         else override = wordAsValue(stream.current());

  538.         if (override == "tag" && endOfLine(stream)) {

  539.           return pushContext(state, stream, "block");

  540.         }

  541.       }

  542.       if (type == "operator" && /^(not|and|or)$/.test(stream.current())) {

  543.         override = "keyword";

  544.       }

  545.       return state.context.type;

  546.     };

  547. 

  548.     states.atBlock_parens = function(type, stream, state) {

  549.       if (type == "{" || type == "}") return state.context.type;

  550.       if (type == ")") {

  551.         if (endOfLine(stream)) return pushContext(state, stream, "block");

  552.         else return pushContext(state, stream, "atBlock");

  553.       }

  554.       if (type == "word") {

  555.         var word = stream.current().toLowerCase();

  556.         override = wordAsValue(word);

  557.         if (/^(max|min)/.test(word)) override = "property";

  558.         if (override == "tag") {

  559.           tagVariablesRegexp.test(word) ? override = "variable-2" : override = "atom";

  560.         }

  561.         return state.context.type;

  562.       }

  563.       return states.atBlock(type, stream, state);

  564.     };

  565. 

  566. 

  567.     /**

  568.      * Keyframes

  569.      */

  570.     states.keyframes = function(type, stream, state) {

  571.       if (stream.indentation() == "0" && ((type == "}" && startOfLine(stream)) || type == "]" || type == "hash"

  572.                                           || type == "qualifier" || wordIsTag(stream.current()))) {

  573.         return popAndPass(type, stream, state);

  574.       }

  575.       if (type == "{") return pushContext(state, stream, "keyframes");

  576.       if (type == "}") {

  577.         if (startOfLine(stream)) return popContext(state, true);

  578.         else return pushContext(state, stream, "keyframes");

  579.       }

  580.       if (type == "unit" && /^[0-9]+\%$/.test(stream.current())) {

  581.         return pushContext(state, stream, "keyframes");

  582.       }

  583.       if (type == "word") {

  584.         override = wordAsValue(stream.current());

  585.         if (override == "block-keyword") {

  586.           override = "keyword";

  587.           return pushContext(state, stream, "keyframes");

  588.         }

  589.       }

  590.       if (/@(font-face|media|supports|(-moz-)?document)/.test(type)) {

  591.         return pushContext(state, stream, endOfLine(stream) ? "block" : "atBlock");

  592.       }

  593.       if (type == "mixin") {

  594.         return pushContext(state, stream, "block", 0);

  595.       }

  596.       return state.context.type;

  597.     };

  598. 

  599. 

  600.     /**

  601.      * Interpolation

  602.      */

  603.     states.interpolation = function(type, stream, state) {

  604.       if (type == "{") popContext(state) && pushContext(state, stream, "block");

  605.       if (type == "}") {

  606.         if (stream.string.match(/^\s*(\.|#|:|\[|\*|&|>|~|\+|\/)/i) ||

  607.             (stream.string.match(/^\s*[a-z]/i) && wordIsTag(firstWordOfLine(stream)))) {

  608.           return pushContext(state, stream, "block");

  609.         }

  610.         if (!stream.string.match(/^(\{|\s*\&)/) ||

  611.             stream.match(/\s*[\w-]/,false)) {

  612.           return pushContext(state, stream, "block", 0);

  613.         }

  614.         return pushContext(state, stream, "block");

  615.       }

  616.       if (type == "variable-name") {

  617.         return pushContext(state, stream, "variableName", 0);

  618.       }

  619.       if (type == "word") {

  620.         override = wordAsValue(stream.current());

  621.         if (override == "tag") override = "atom";

  622.       }

  623.       return state.context.type;

  624.     };

  625. 

  626. 

  627.     /**

  628.      * Extend/s

  629.      */

  630.     states.extend = function(type, stream, state) {

  631.       if (type == "[" || type == "=") return "extend";

  632.       if (type == "]") return popContext(state);

  633.       if (type == "word") {

  634.         override = wordAsValue(stream.current());

  635.         return "extend";

  636.       }

  637.       return popContext(state);

  638.     };

  639. 

  640. 

  641.     /**

  642.      * Variable name

  643.      */

  644.     states.variableName = function(type, stream, state) {

  645.       if (type == "string" || type == "[" || type == "]" || stream.current().match(/^(\.|\$)/)) {

  646.         if (stream.current().match(/^\.[\w-]+/i)) override = "variable-2";

  647.         return "variableName";

  648.       }

  649.       return popAndPass(type, stream, state);

  650.     };

  651. 

  652. 

  653.     return {

  654.       startState: function(base) {

  655.         return {

  656.           tokenize: null,

  657.           state: "block",

  658.           context: new Context("block", base || 0, null)

  659.         };

  660.       },

  661.       token: function(stream, state) {

  662.         if (!state.tokenize && stream.eatSpace()) return null;

  663.         style = (state.tokenize || tokenBase)(stream, state);

  664.         if (style && typeof style == "object") {

  665.           type = style[1];

  666.           style = style[0];

  667.         }

  668.         override = style;

  669.         state.state = states[state.state](type, stream, state);

  670.         return override;

  671.       },

  672.       indent: function(state, textAfter, line) {

  673. 

  674.         var cx = state.context,

  675.             ch = textAfter && textAfter.charAt(0),

  676.             indent = cx.indent,

  677.             lineFirstWord = firstWordOfLine(textAfter),

  678.             lineIndent = line.match(/^\s*/)[0].replace(/\t/g, indentUnitString).length,

  679.             prevLineFirstWord = state.context.prev ? state.context.prev.line.firstWord : "",

  680.             prevLineIndent = state.context.prev ? state.context.prev.line.indent : lineIndent;

  681. 

  682.         if (cx.prev &&

  683.             (ch == "}" && (cx.type == "block" || cx.type == "atBlock" || cx.type == "keyframes") ||

  684.              ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||

  685.              ch == "{" && (cx.type == "at"))) {

  686.           indent = cx.indent - indentUnit;

  687.         } else if (!(/(\})/.test(ch))) {

  688.           if (/@|\$|\d/.test(ch) ||

  689.               /^\{/.test(textAfter) ||

  690. /^\s*\/(\/|\*)/.test(textAfter) ||

  691.               /^\s*\/\*/.test(prevLineFirstWord) ||

  692.               /^\s*[\w-\.\[\]\'\"]+\s*(\?|:|\+)?=/i.test(textAfter) ||

  693. /^(\+|-)?[a-z][\w-]*\(/i.test(textAfter) ||

  694. /^return/.test(textAfter) ||

  695.               wordIsBlock(lineFirstWord)) {

  696.             indent = lineIndent;

  697.           } else if (/(\.|#|:|\[|\*|&|>|~|\+|\/)/.test(ch) || wordIsTag(lineFirstWord)) {

  698.             if (/\,\s*$/.test(prevLineFirstWord)) {

  699.               indent = prevLineIndent;

  700.             } else if (/^\s+/.test(line) && (/(\.|#|:|\[|\*|&|>|~|\+|\/)/.test(prevLineFirstWord) || wordIsTag(prevLineFirstWord))) {

  701.               indent = lineIndent <= prevLineIndent ? prevLineIndent : prevLineIndent + indentUnit;

  702.             } else {

  703.               indent = lineIndent;

  704.             }

  705.           } else if (!/,\s*$/.test(line) && (wordIsVendorPrefix(lineFirstWord) || wordIsProperty(lineFirstWord))) {

  706.             if (wordIsBlock(prevLineFirstWord)) {

  707.               indent = lineIndent <= prevLineIndent ? prevLineIndent : prevLineIndent + indentUnit;

  708.             } else if (/^\{/.test(prevLineFirstWord)) {

  709.               indent = lineIndent <= prevLineIndent ? lineIndent : prevLineIndent + indentUnit;

  710.             } else if (wordIsVendorPrefix(prevLineFirstWord) || wordIsProperty(prevLineFirstWord)) {

  711.               indent = lineIndent >= prevLineIndent ? prevLineIndent : lineIndent;

  712.             } else if (/^(\.|#|:|\[|\*|&|@|\+|\-|>|~|\/)/.test(prevLineFirstWord) ||

  713.                       /=\s*$/.test(prevLineFirstWord) ||

  714.                       wordIsTag(prevLineFirstWord) ||

  715.                       /^\$[\w-\.\[\]\'\"]/.test(prevLineFirstWord)) {

  716.               indent = prevLineIndent + indentUnit;

  717.             } else {

  718.               indent = lineIndent;

  719.             }

  720.           }

  721.         }

  722.         return indent;

  723.       },

  724.       electricChars: "}",

  725.       blockCommentStart: "/*",

  726.       blockCommentEnd: "*/",

  727.       blockCommentContinue: " * ",

  728.       lineComment: "//",

  729.       fold: "indent"

  730.     };

  731.   });

  732. 

  733.   // developer.mozilla.org/en-US/docs/Web/HTML/Element

  734.   var tagKeywords_ = ["a","abbr","address","area","article","aside","audio", "b", "base","bdi", "bdo","bgsound","blockquote","body","br","button","canvas","caption","cite", "code","col","colgroup","data","datalist","dd","del","details","dfn","div", "dl","dt","em","embed","fieldset","figcaption","figure","footer","form","h1", "h2","h3","h4","h5","h6","head","header","hgroup","hr","html","i","iframe", "img","input","ins","kbd","keygen","label","legend","li","link","main","map", "mark","marquee","menu","menuitem","meta","meter","nav","nobr","noframes", "noscript","object","ol","optgroup","option","output","p","param","pre", "progress","q","rp","rt","ruby","s","samp","script","section","select", "small","source","span","strong","style","sub","summary","sup","table","tbody","td","textarea","tfoot","th","thead","time","tr","track", "u","ul","var","video"];

  735. 

  736.   // github.com/codemirror/CodeMirror/blob/master/mode/css/css.js

  737.   // Note, "url-prefix" should precede "url" in order to match correctly in documentTypesRegexp

  738.   var documentTypes_ = ["domain", "regexp", "url-prefix", "url"];

  739.   var mediaTypes_ = ["all","aural","braille","handheld","print","projection","screen","tty","tv","embossed"];

  740.   var mediaFeatures_ = ["width","min-width","max-width","height","min-height","max-height","device-width","min-device-width","max-device-width","device-height","min-device-height","max-device-height","aspect-ratio","min-aspect-ratio","max-aspect-ratio","device-aspect-ratio","min-device-aspect-ratio","max-device-aspect-ratio","color","min-color","max-color","color-index","min-color-index","max-color-index","monochrome","min-monochrome","max-monochrome","resolution","min-resolution","max-resolution","scan","grid","dynamic-range","video-dynamic-range"];

  741.   var propertyKeywords_ = ["align-content","align-items","align-self","alignment-adjust","alignment-baseline","anchor-point","animation","animation-delay","animation-direction","animation-duration","animation-fill-mode","animation-iteration-count","animation-name","animation-play-state","animation-timing-function","appearance","azimuth","backface-visibility","background","background-attachment","background-clip","background-color","background-image","background-origin","background-position","background-repeat","background-size","baseline-shift","binding","bleed","bookmark-label","bookmark-level","bookmark-state","bookmark-target","border","border-bottom","border-bottom-color","border-bottom-left-radius","border-bottom-right-radius","border-bottom-style","border-bottom-width","border-collapse","border-color","border-image","border-image-outset","border-image-repeat","border-image-slice","border-image-source","border-image-width","border-left","border-left-color","border-left-style","border-left-width","border-radius","border-right","border-right-color","border-right-style","border-right-width","border-spacing","border-style","border-top","border-top-color","border-top-left-radius","border-top-right-radius","border-top-style","border-top-width","border-width","bottom","box-decoration-break","box-shadow","box-sizing","break-after","break-before","break-inside","caption-side","clear","clip","color","color-profile","column-count","column-fill","column-gap","column-rule","column-rule-color","column-rule-style","column-rule-width","column-span","column-width","columns","content","counter-increment","counter-reset","crop","cue","cue-after","cue-before","cursor","direction","display","dominant-baseline","drop-initial-after-adjust","drop-initial-after-align","drop-initial-before-adjust","drop-initial-before-align","drop-initial-size","drop-initial-value","elevation","empty-cells","fit","fit-position","flex","flex-basis","flex-direction","flex-flow","flex-grow","flex-shrink","flex-wrap","float","float-offset","flow-from","flow-into","font","font-feature-settings","font-family","font-kerning","font-language-override","font-size","font-size-adjust","font-stretch","font-style","font-synthesis","font-variant","font-variant-alternates","font-variant-caps","font-variant-east-asian","font-variant-ligatures","font-variant-numeric","font-variant-position","font-weight","grid","grid-area","grid-auto-columns","grid-auto-flow","grid-auto-position","grid-auto-rows","grid-column","grid-column-end","grid-column-start","grid-row","grid-row-end","grid-row-start","grid-template","grid-template-areas","grid-template-columns","grid-template-rows","hanging-punctuation","height","hyphens","icon","image-orientation","image-rendering","image-resolution","inline-box-align","justify-content","left","letter-spacing","line-break","line-height","line-stacking","line-stacking-ruby","line-stacking-shift","line-stacking-strategy","list-style","list-style-image","list-style-position","list-style-type","margin","margin-bottom","margin-left","margin-right","margin-top","marker-offset","marks","marquee-direction","marquee-loop","marquee-play-count","marquee-speed","marquee-style","max-height","max-width","min-height","min-width","move-to","nav-down","nav-index","nav-left","nav-right","nav-up","object-fit","object-position","opacity","order","orphans","outline","outline-color","outline-offset","outline-style","outline-width","overflow","overflow-style","overflow-wrap","overflow-x","overflow-y","padding","padding-bottom","padding-left","padding-right","padding-top","page","page-break-after","page-break-before","page-break-inside","page-policy","pause","pause-after","pause-before","perspective","perspective-origin","pitch","pitch-range","play-during","position","presentation-level","punctuation-trim","quotes","region-break-after","region-break-before","region-break-inside","region-fragment","rendering-intent","resize","rest","rest-after","rest-before","richness","right","rotation","rotation-point","ruby-align","ruby-overhang","ruby-position","ruby-span","shape-image-threshold","shape-inside","shape-margin","shape-outside","size","speak","speak-as","speak-header","speak-numeral","speak-punctuation","speech-rate","stress","string-set","tab-size","table-layout","target","target-name","target-new","target-position","text-align","text-align-last","text-decoration","text-decoration-color","text-decoration-line","text-decoration-skip","text-decoration-style","text-emphasis","text-emphasis-color","text-emphasis-position","text-emphasis-style","text-height","text-indent","text-justify","text-outline","text-overflow","text-shadow","text-size-adjust","text-space-collapse","text-transform","text-underline-position","text-wrap","top","transform","transform-origin","transform-style","transition","transition-delay","transition-duration","transition-property","transition-timing-function","unicode-bidi","vertical-align","visibility","voice-balance","voice-duration","voice-family","voice-pitch","voice-range","voice-rate","voice-stress","voice-volume","volume","white-space","widows","width","will-change","word-break","word-spacing","word-wrap","z-index","clip-path","clip-rule","mask","enable-background","filter","flood-color","flood-opacity","lighting-color","stop-color","stop-opacity","pointer-events","color-interpolation","color-interpolation-filters","color-rendering","fill","fill-opacity","fill-rule","image-rendering","marker","marker-end","marker-mid","marker-start","shape-rendering","stroke","stroke-dasharray","stroke-dashoffset","stroke-linecap","stroke-linejoin","stroke-miterlimit","stroke-opacity","stroke-width","text-rendering","baseline-shift","dominant-baseline","glyph-orientation-horizontal","glyph-orientation-vertical","text-anchor","writing-mode","font-smoothing","osx-font-smoothing"];

  742.   var nonStandardPropertyKeywords_ = ["scrollbar-arrow-color","scrollbar-base-color","scrollbar-dark-shadow-color","scrollbar-face-color","scrollbar-highlight-color","scrollbar-shadow-color","scrollbar-3d-light-color","scrollbar-track-color","shape-inside","searchfield-cancel-button","searchfield-decoration","searchfield-results-button","searchfield-results-decoration","zoom"];

  743.   var fontProperties_ = ["font-family","src","unicode-range","font-variant","font-feature-settings","font-stretch","font-weight","font-style"];

  744.   var colorKeywords_ = ["aliceblue","antiquewhite","aqua","aquamarine","azure","beige","bisque","black","blanchedalmond","blue","blueviolet","brown","burlywood","cadetblue","chartreuse","chocolate","coral","cornflowerblue","cornsilk","crimson","cyan","darkblue","darkcyan","darkgoldenrod","darkgray","darkgreen","darkkhaki","darkmagenta","darkolivegreen","darkorange","darkorchid","darkred","darksalmon","darkseagreen","darkslateblue","darkslategray","darkturquoise","darkviolet","deeppink","deepskyblue","dimgray","dodgerblue","firebrick","floralwhite","forestgreen","fuchsia","gainsboro","ghostwhite","gold","goldenrod","gray","grey","green","greenyellow","honeydew","hotpink","indianred","indigo","ivory","khaki","lavender","lavenderblush","lawngreen","lemonchiffon","lightblue","lightcoral","lightcyan","lightgoldenrodyellow","lightgray","lightgreen","lightpink","lightsalmon","lightseagreen","lightskyblue","lightslategray","lightsteelblue","lightyellow","lime","limegreen","linen","magenta","maroon","mediumaquamarine","mediumblue","mediumorchid","mediumpurple","mediumseagreen","mediumslateblue","mediumspringgreen","mediumturquoise","mediumvioletred","midnightblue","mintcream","mistyrose","moccasin","navajowhite","navy","oldlace","olive","olivedrab","orange","orangered","orchid","palegoldenrod","palegreen","paleturquoise","palevioletred","papayawhip","peachpuff","peru","pink","plum","powderblue","purple","rebeccapurple","red","rosybrown","royalblue","saddlebrown","salmon","sandybrown","seagreen","seashell","sienna","silver","skyblue","slateblue","slategray","snow","springgreen","steelblue","tan","teal","thistle","tomato","turquoise","violet","wheat","white","whitesmoke","yellow","yellowgreen"];

  745.   var valueKeywords_ = ["above","absolute","activeborder","additive","activecaption","afar","after-white-space","ahead","alias","all","all-scroll","alphabetic","alternate","always","amharic","amharic-abegede","antialiased","appworkspace","arabic-indic","armenian","asterisks","attr","auto","avoid","avoid-column","avoid-page","avoid-region","background","backwards","baseline","below","bidi-override","binary","bengali","blink","block","block-axis","bold","bolder","border","border-box","both","bottom","break","break-all","break-word","bullets","button","button-bevel","buttonface","buttonhighlight","buttonshadow","buttontext","calc","cambodian","capitalize","caps-lock-indicator","caption","captiontext","caret","cell","center","checkbox","circle","cjk-decimal","cjk-earthly-branch","cjk-heavenly-stem","cjk-ideographic","clear","clip","close-quote","col-resize","collapse","column","compact","condensed","conic-gradient","contain","content","contents","content-box","context-menu","continuous","copy","counter","counters","cover","crop","cross","crosshair","currentcolor","cursive","cyclic","dashed","decimal","decimal-leading-zero","default","default-button","destination-atop","destination-in","destination-out","destination-over","devanagari","disc","discard","disclosure-closed","disclosure-open","document","dot-dash","dot-dot-dash","dotted","double","down","e-resize","ease","ease-in","ease-in-out","ease-out","element","ellipse","ellipsis","embed","end","ethiopic","ethiopic-abegede","ethiopic-abegede-am-et","ethiopic-abegede-gez","ethiopic-abegede-ti-er","ethiopic-abegede-ti-et","ethiopic-halehame-aa-er","ethiopic-halehame-aa-et","ethiopic-halehame-am-et","ethiopic-halehame-gez","ethiopic-halehame-om-et","ethiopic-halehame-sid-et","ethiopic-halehame-so-et","ethiopic-halehame-ti-er","ethiopic-halehame-ti-et","ethiopic-halehame-tig","ethiopic-numeric","ew-resize","expanded","extends","extra-condensed","extra-expanded","fantasy","fast","fill","fixed","flat","flex","footnotes","forwards","from","geometricPrecision","georgian","graytext","groove","gujarati","gurmukhi","hand","hangul","hangul-consonant","hebrew","help","hidden","hide","high","higher","highlight","highlighttext","hiragana","hiragana-iroha","horizontal","hsl","hsla","icon","ignore","inactiveborder","inactivecaption","inactivecaptiontext","infinite","infobackground","infotext","inherit","initial","inline","inline-axis","inline-block","inline-flex","inline-table","inset","inside","intrinsic","invert","italic","japanese-formal","japanese-informal","justify","kannada","katakana","katakana-iroha","keep-all","khmer","korean-hangul-formal","korean-hanja-formal","korean-hanja-informal","landscape","lao","large","larger","left","level","lighter","line-through","linear","linear-gradient","lines","list-item","listbox","listitem","local","logical","loud","lower","lower-alpha","lower-armenian","lower-greek","lower-hexadecimal","lower-latin","lower-norwegian","lower-roman","lowercase","ltr","malayalam","match","matrix","matrix3d","media-controls-background","media-current-time-display","media-fullscreen-button","media-mute-button","media-play-button","media-return-to-realtime-button","media-rewind-button","media-seek-back-button","media-seek-forward-button","media-slider","media-sliderthumb","media-time-remaining-display","media-volume-slider","media-volume-slider-container","media-volume-sliderthumb","medium","menu","menulist","menulist-button","menulist-text","menulist-textfield","menutext","message-box","middle","min-intrinsic","mix","mongolian","monospace","move","multiple","myanmar","n-resize","narrower","ne-resize","nesw-resize","no-close-quote","no-drop","no-open-quote","no-repeat","none","normal","not-allowed","nowrap","ns-resize","numbers","numeric","nw-resize","nwse-resize","oblique","octal","open-quote","optimizeLegibility","optimizeSpeed","oriya","oromo","outset","outside","outside-shape","overlay","overline","padding","padding-box","painted","page","paused","persian","perspective","plus-darker","plus-lighter","pointer","polygon","portrait","pre","pre-line","pre-wrap","preserve-3d","progress","push-button","radial-gradient","radio","read-only","read-write","read-write-plaintext-only","rectangle","region","relative","repeat","repeating-linear-gradient","repeating-radial-gradient","repeating-conic-gradient","repeat-x","repeat-y","reset","reverse","rgb","rgba","ridge","right","rotate","rotate3d","rotateX","rotateY","rotateZ","round","row-resize","rtl","run-in","running","s-resize","sans-serif","scale","scale3d","scaleX","scaleY","scaleZ","scroll","scrollbar","scroll-position","se-resize","searchfield","searchfield-cancel-button","searchfield-decoration","searchfield-results-button","searchfield-results-decoration","semi-condensed","semi-expanded","separate","serif","show","sidama","simp-chinese-formal","simp-chinese-informal","single","skew","skewX","skewY","skip-white-space","slide","slider-horizontal","slider-vertical","sliderthumb-horizontal","sliderthumb-vertical","slow","small","small-caps","small-caption","smaller","solid","somali","source-atop","source-in","source-out","source-over","space","spell-out","square","square-button","standard","start","static","status-bar","stretch","stroke","sub","subpixel-antialiased","super","sw-resize","symbolic","symbols","table","table-caption","table-cell","table-column","table-column-group","table-footer-group","table-header-group","table-row","table-row-group","tamil","telugu","text","text-bottom","text-top","textarea","textfield","thai","thick","thin","threeddarkshadow","threedface","threedhighlight","threedlightshadow","threedshadow","tibetan","tigre","tigrinya-er","tigrinya-er-abegede","tigrinya-et","tigrinya-et-abegede","to","top","trad-chinese-formal","trad-chinese-informal","translate","translate3d","translateX","translateY","translateZ","transparent","ultra-condensed","ultra-expanded","underline","up","upper-alpha","upper-armenian","upper-greek","upper-hexadecimal","upper-latin","upper-norwegian","upper-roman","uppercase","urdu","url","var","vertical","vertical-text","visible","visibleFill","visiblePainted","visibleStroke","visual","w-resize","wait","wave","wider","window","windowframe","windowtext","words","x-large","x-small","xor","xx-large","xx-small","bicubic","optimizespeed","grayscale","row","row-reverse","wrap","wrap-reverse","column-reverse","flex-start","flex-end","space-between","space-around", "unset"];

  746. 

  747.   var wordOperatorKeywords_ = ["in","and","or","not","is not","is a","is","isnt","defined","if unless"],

  748.       blockKeywords_ = ["for","if","else","unless", "from", "to"],

  749.       commonAtoms_ = ["null","true","false","href","title","type","not-allowed","readonly","disabled"],

  750.       commonDef_ = ["@font-face", "@keyframes", "@media", "@viewport", "@page", "@host", "@supports", "@block", "@css"];

  751. 

  752.   var hintWords = tagKeywords_.concat(documentTypes_,mediaTypes_,mediaFeatures_,

  753.                                       propertyKeywords_,nonStandardPropertyKeywords_,

  754.                                       colorKeywords_,valueKeywords_,fontProperties_,

  755.                                       wordOperatorKeywords_,blockKeywords_,

  756.                                       commonAtoms_,commonDef_);

  757. 

  758.   function wordRegexp(words) {

  759.     words = words.sort(function(a,b){return b > a;});

  760.     return new RegExp("^((" + words.join(")|(") + "))\\b");

  761.   }

  762. 

  763.   function keySet(array) {

  764.     var keys = {};

  765.     for (var i = 0; i < array.length; ++i) keys[array[i]] = true;

  766.     return keys;

  767.   }

  768. 

  769.   function escapeRegExp(text) {

  770.     return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");

  771.   }

  772. 

  773.   CodeMirror.registerHelper("hintWords", "stylus", hintWords);

  774.   CodeMirror.defineMIME("text/x-styl", "stylus");

  775. });