openrat-cms

javascript.js (33974B)

---

 // CodeMirror, copyright (c) by Marijn Haverbeke and others
 // Distributed under an MIT license: http://codemirror.net/LICENSE
 
 (function(mod) {
   if (typeof exports == "object" && typeof module == "object") // CommonJS
     mod(require("../../lib/codemirror"));
   else if (typeof define == "function" && define.amd) // AMD
     define(["../../lib/codemirror"], mod);
   else // Plain browser env
     mod(CodeMirror);
 })(function(CodeMirror) {
 "use strict";
 
 CodeMirror.defineMode("javascript", function(config, parserConfig) {
   var indentUnit = config.indentUnit;
   var statementIndent = parserConfig.statementIndent;
   var jsonldMode = parserConfig.jsonld;
   var jsonMode = parserConfig.json || jsonldMode;
   var isTS = parserConfig.typescript;
   var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
 
   // Tokenizer
 
   var keywords = function(){
     function kw(type) {return {type: type, style: "keyword"};}
     var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"), D = kw("keyword d");
     var operator = kw("operator"), atom = {type: "atom", style: "atom"};
 
     var jsKeywords = {
       "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
       "return": D, "break": D, "continue": D, "new": kw("new"), "delete": C, "void": C, "throw": C,
       "debugger": kw("debugger"), "var": kw("var"), "const": kw("var"), "let": kw("var"),
       "function": kw("function"), "catch": kw("catch"),
       "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
       "in": operator, "typeof": operator, "instanceof": operator,
       "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
       "this": kw("this"), "class": kw("class"), "super": kw("atom"),
       "yield": C, "export": kw("export"), "import": kw("import"), "extends": C,
       "await": C
     };
 
     // Extend the 'normal' keywords with the TypeScript language extensions
     if (isTS) {
       var type = {type: "variable", style: "type"};
       var tsKeywords = {
         // object-like things
         "interface": kw("class"),
         "implements": C,
         "namespace": C,
 
         // scope modifiers
         "public": kw("modifier"),
         "private": kw("modifier"),
         "protected": kw("modifier"),
         "abstract": kw("modifier"),
         "readonly": kw("modifier"),
 
         // types
         "string": type, "number": type, "boolean": type, "any": type
       };
 
       for (var attr in tsKeywords) {
         jsKeywords[attr] = tsKeywords[attr];
       }
     }
 
     return jsKeywords;
   }();
 
   var isOperatorChar = /[+\-*&%=<>!?|~^@]/;
   var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
 
   function readRegexp(stream) {
     var escaped = false, next, inSet = false;
     while ((next = stream.next()) != null) {
       if (!escaped) {
         if (next == "/" && !inSet) return;
         if (next == "[") inSet = true;
         else if (inSet && next == "]") inSet = false;
       }
       escaped = !escaped && next == "\\";
     }
   }
 
   // Used as scratch variables to communicate multiple values without
   // consing up tons of objects.
   var type, content;
   function ret(tp, style, cont) {
     type = tp; content = cont;
     return style;
   }
   function tokenBase(stream, state) {
     var ch = stream.next();
     if (ch == '"' || ch == "'") {
       state.tokenize = tokenString(ch);
       return state.tokenize(stream, state);
     } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) {
       return ret("number", "number");
     } else if (ch == "." && stream.match("..")) {
       return ret("spread", "meta");
     } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
       return ret(ch);
     } else if (ch == "=" && stream.eat(">")) {
       return ret("=>", "operator");
     } else if (ch == "0" && stream.eat(/x/i)) {
       stream.eatWhile(/[\da-f]/i);
       return ret("number", "number");
     } else if (ch == "0" && stream.eat(/o/i)) {
       stream.eatWhile(/[0-7]/i);
       return ret("number", "number");
     } else if (ch == "0" && stream.eat(/b/i)) {
       stream.eatWhile(/[01]/i);
       return ret("number", "number");
     } else if (/\d/.test(ch)) {
       stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
       return ret("number", "number");
     } else if (ch == "/") {
       if (stream.eat("*")) {
         state.tokenize = tokenComment;
         return tokenComment(stream, state);
       } else if (stream.eat("/")) {
         stream.skipToEnd();
         return ret("comment", "comment");
       } else if (expressionAllowed(stream, state, 1)) {
         readRegexp(stream);
         stream.match(/^\b(([gimyu])(?![gimyu]*\2))+\b/);
         return ret("regexp", "string-2");
       } else {
         stream.eat("=");
         return ret("operator", "operator", stream.current());
       }
     } else if (ch == "`") {
       state.tokenize = tokenQuasi;
       return tokenQuasi(stream, state);
     } else if (ch == "#") {
       stream.skipToEnd();
       return ret("error", "error");
     } else if (isOperatorChar.test(ch)) {
       if (ch != ">" || !state.lexical || state.lexical.type != ">") {
         if (stream.eat("=")) {
           if (ch == "!" || ch == "=") stream.eat("=")
         } else if (/[<>*+\-]/.test(ch)) {
           stream.eat(ch)
           if (ch == ">") stream.eat(ch)
         }
       }
       return ret("operator", "operator", stream.current());
     } else if (wordRE.test(ch)) {
       stream.eatWhile(wordRE);
       var word = stream.current()
       if (state.lastType != ".") {
         if (keywords.propertyIsEnumerable(word)) {
           var kw = keywords[word]
           return ret(kw.type, kw.style, word)
         }
         if (word == "async" && stream.match(/^(\s|\/\*.*?\*\/)*[\(\w]/, false))
           return ret("async", "keyword", word)
       }
       return ret("variable", "variable", word)
     }
   }
 
   function tokenString(quote) {
     return function(stream, state) {
       var escaped = false, next;
       if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
         state.tokenize = tokenBase;
         return ret("jsonld-keyword", "meta");
       }
       while ((next = stream.next()) != null) {
         if (next == quote && !escaped) break;
         escaped = !escaped && next == "\\";
       }
       if (!escaped) state.tokenize = tokenBase;
       return ret("string", "string");
     };
   }
 
   function tokenComment(stream, state) {
     var maybeEnd = false, ch;
     while (ch = stream.next()) {
       if (ch == "/" && maybeEnd) {
         state.tokenize = tokenBase;
         break;
       }
       maybeEnd = (ch == "*");
     }
     return ret("comment", "comment");
   }
 
   function tokenQuasi(stream, state) {
     var escaped = false, next;
     while ((next = stream.next()) != null) {
       if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
         state.tokenize = tokenBase;
         break;
       }
       escaped = !escaped && next == "\\";
     }
     return ret("quasi", "string-2", stream.current());
   }
 
   var brackets = "([{}])";
   // This is a crude lookahead trick to try and notice that we're
   // parsing the argument patterns for a fat-arrow function before we
   // actually hit the arrow token. It only works if the arrow is on
   // the same line as the arguments and there's no strange noise
   // (comments) in between. Fallback is to only notice when we hit the
   // arrow, and not declare the arguments as locals for the arrow
   // body.
   function findFatArrow(stream, state) {
     if (state.fatArrowAt) state.fatArrowAt = null;
     var arrow = stream.string.indexOf("=>", stream.start);
     if (arrow < 0) return;
 
     if (isTS) { // Try to skip TypeScript return type declarations after the arguments
       var m = /:\s*(?:\w+(?:<[^>]*>|\[\])?|\{[^}]*\})\s*$/.exec(stream.string.slice(stream.start, arrow))
       if (m) arrow = m.index
     }
 
     var depth = 0, sawSomething = false;
     for (var pos = arrow - 1; pos >= 0; --pos) {
       var ch = stream.string.charAt(pos);
       var bracket = brackets.indexOf(ch);
       if (bracket >= 0 && bracket < 3) {
         if (!depth) { ++pos; break; }
         if (--depth == 0) { if (ch == "(") sawSomething = true; break; }
       } else if (bracket >= 3 && bracket < 6) {
         ++depth;
       } else if (wordRE.test(ch)) {
         sawSomething = true;
       } else if (/["'\/]/.test(ch)) {
         return;
       } else if (sawSomething && !depth) {
         ++pos;
         break;
       }
     }
     if (sawSomething && !depth) state.fatArrowAt = pos;
   }
 
   // Parser
 
   var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
 
   function JSLexical(indented, column, type, align, prev, info) {
     this.indented = indented;
     this.column = column;
     this.type = type;
     this.prev = prev;
     this.info = info;
     if (align != null) this.align = align;
   }
 
   function inScope(state, varname) {
     for (var v = state.localVars; v; v = v.next)
       if (v.name == varname) return true;
     for (var cx = state.context; cx; cx = cx.prev) {
       for (var v = cx.vars; v; v = v.next)
         if (v.name == varname) return true;
     }
   }
 
   function parseJS(state, style, type, content, stream) {
     var cc = state.cc;
     // Communicate our context to the combinators.
     // (Less wasteful than consing up a hundred closures on every call.)
     cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
 
     if (!state.lexical.hasOwnProperty("align"))
       state.lexical.align = true;
 
     while(true) {
       var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
       if (combinator(type, content)) {
         while(cc.length && cc[cc.length - 1].lex)
           cc.pop()();
         if (cx.marked) return cx.marked;
         if (type == "variable" && inScope(state, content)) return "variable-2";
         return style;
       }
     }
   }
 
   // Combinator utils
 
   var cx = {state: null, column: null, marked: null, cc: null};
   function pass() {
     for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
   }
   function cont() {
     pass.apply(null, arguments);
     return true;
   }
   function register(varname) {
     function inList(list) {
       for (var v = list; v; v = v.next)
         if (v.name == varname) return true;
       return false;
     }
     var state = cx.state;
     cx.marked = "def";
     if (state.context) {
       if (inList(state.localVars)) return;
       state.localVars = {name: varname, next: state.localVars};
     } else {
       if (inList(state.globalVars)) return;
       if (parserConfig.globalVars)
         state.globalVars = {name: varname, next: state.globalVars};
     }
   }
 
   // Combinators
 
   var defaultVars = {name: "this", next: {name: "arguments"}};
   function pushcontext() {
     cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
     cx.state.localVars = defaultVars;
   }
   function popcontext() {
     cx.state.localVars = cx.state.context.vars;
     cx.state.context = cx.state.context.prev;
   }
   function pushlex(type, info) {
     var result = function() {
       var state = cx.state, indent = state.indented;
       if (state.lexical.type == "stat") indent = state.lexical.indented;
       else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
         indent = outer.indented;
       state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
     };
     result.lex = true;
     return result;
   }
   function poplex() {
     var state = cx.state;
     if (state.lexical.prev) {
       if (state.lexical.type == ")")
         state.indented = state.lexical.indented;
       state.lexical = state.lexical.prev;
     }
   }
   poplex.lex = true;
 
   function expect(wanted) {
     function exp(type) {
       if (type == wanted) return cont();
       else if (wanted == ";") return pass();
       else return cont(exp);
     };
     return exp;
   }
 
   function statement(type, value) {
     if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex);
     if (type == "keyword a") return cont(pushlex("form"), parenExpr, statement, poplex);
     if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
     if (type == "keyword d") return cx.stream.match(/^\s*$/, false) ? cont() : cont(pushlex("stat"), maybeexpression, expect(";"), poplex);
     if (type == "debugger") return cont(expect(";"));
     if (type == "{") return cont(pushlex("}"), block, poplex);
     if (type == ";") return cont();
     if (type == "if") {
       if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
         cx.state.cc.pop()();
       return cont(pushlex("form"), parenExpr, statement, poplex, maybeelse);
     }
     if (type == "function") return cont(functiondef);
     if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
     if (type == "variable") {
       if (isTS && value == "type") {
         cx.marked = "keyword"
         return cont(typeexpr, expect("operator"), typeexpr, expect(";"));
       } else if (isTS && value == "declare") {
         cx.marked = "keyword"
         return cont(statement)
       } else if (isTS && (value == "module" || value == "enum") && cx.stream.match(/^\s*\w/, false)) {
         cx.marked = "keyword"
         return cont(pushlex("form"), pattern, expect("{"), pushlex("}"), block, poplex, poplex)
       } else {
         return cont(pushlex("stat"), maybelabel);
       }
     }
     if (type == "switch") return cont(pushlex("form"), parenExpr, expect("{"), pushlex("}", "switch"),
                                       block, poplex, poplex);
     if (type == "case") return cont(expression, expect(":"));
     if (type == "default") return cont(expect(":"));
     if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
                                      statement, poplex, popcontext);
     if (type == "class") return cont(pushlex("form"), className, poplex);
     if (type == "export") return cont(pushlex("stat"), afterExport, poplex);
     if (type == "import") return cont(pushlex("stat"), afterImport, poplex);
     if (type == "async") return cont(statement)
     if (value == "@") return cont(expression, statement)
     return pass(pushlex("stat"), expression, expect(";"), poplex);
   }
   function expression(type) {
     return expressionInner(type, false);
   }
   function expressionNoComma(type) {
     return expressionInner(type, true);
   }
   function parenExpr(type) {
     if (type != "(") return pass()
     return cont(pushlex(")"), expression, expect(")"), poplex)
   }
   function expressionInner(type, noComma) {
     if (cx.state.fatArrowAt == cx.stream.start) {
       var body = noComma ? arrowBodyNoComma : arrowBody;
       if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, expect("=>"), body, popcontext);
       else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
     }
 
     var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
     if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
     if (type == "function") return cont(functiondef, maybeop);
     if (type == "class") return cont(pushlex("form"), classExpression, poplex);
     if (type == "keyword c" || type == "async") return cont(noComma ? expressionNoComma : expression);
     if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop);
     if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
     if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
     if (type == "{") return contCommasep(objprop, "}", null, maybeop);
     if (type == "quasi") return pass(quasi, maybeop);
     if (type == "new") return cont(maybeTarget(noComma));
     return cont();
   }
   function maybeexpression(type) {
     if (type.match(/[;\}\)\],]/)) return pass();
     return pass(expression);
   }
 
   function maybeoperatorComma(type, value) {
     if (type == ",") return cont(expression);
     return maybeoperatorNoComma(type, value, false);
   }
   function maybeoperatorNoComma(type, value, noComma) {
     var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
     var expr = noComma == false ? expression : expressionNoComma;
     if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
     if (type == "operator") {
       if (/\+\+|--/.test(value) || isTS && value == "!") return cont(me);
       if (isTS && value == "<" && cx.stream.match(/^([^>]|<.*?>)*>\s*\(/, false))
         return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, me);
       if (value == "?") return cont(expression, expect(":"), expr);
       return cont(expr);
     }
     if (type == "quasi") { return pass(quasi, me); }
     if (type == ";") return;
     if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
     if (type == ".") return cont(property, me);
     if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
     if (isTS && value == "as") { cx.marked = "keyword"; return cont(typeexpr, me) }
     if (type == "regexp") {
       cx.state.lastType = cx.marked = "operator"
       cx.stream.backUp(cx.stream.pos - cx.stream.start - 1)
       return cont(expr)
     }
   }
   function quasi(type, value) {
     if (type != "quasi") return pass();
     if (value.slice(value.length - 2) != "${") return cont(quasi);
     return cont(expression, continueQuasi);
   }
   function continueQuasi(type) {
     if (type == "}") {
       cx.marked = "string-2";
       cx.state.tokenize = tokenQuasi;
       return cont(quasi);
     }
   }
   function arrowBody(type) {
     findFatArrow(cx.stream, cx.state);
     return pass(type == "{" ? statement : expression);
   }
   function arrowBodyNoComma(type) {
     findFatArrow(cx.stream, cx.state);
     return pass(type == "{" ? statement : expressionNoComma);
   }
   function maybeTarget(noComma) {
     return function(type) {
       if (type == ".") return cont(noComma ? targetNoComma : target);
       else if (type == "variable" && isTS) return cont(maybeTypeArgs, noComma ? maybeoperatorNoComma : maybeoperatorComma)
       else return pass(noComma ? expressionNoComma : expression);
     };
   }
   function target(_, value) {
     if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); }
   }
   function targetNoComma(_, value) {
     if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); }
   }
   function maybelabel(type) {
     if (type == ":") return cont(poplex, statement);
     return pass(maybeoperatorComma, expect(";"), poplex);
   }
   function property(type) {
     if (type == "variable") {cx.marked = "property"; return cont();}
   }
   function objprop(type, value) {
     if (type == "async") {
       cx.marked = "property";
       return cont(objprop);
     } else if (type == "variable" || cx.style == "keyword") {
       cx.marked = "property";
       if (value == "get" || value == "set") return cont(getterSetter);
       var m // Work around fat-arrow-detection complication for detecting typescript typed arrow params
       if (isTS && cx.state.fatArrowAt == cx.stream.start && (m = cx.stream.match(/^\s*:\s*/, false)))
         cx.state.fatArrowAt = cx.stream.pos + m[0].length
       return cont(afterprop);
     } else if (type == "number" || type == "string") {
       cx.marked = jsonldMode ? "property" : (cx.style + " property");
       return cont(afterprop);
     } else if (type == "jsonld-keyword") {
       return cont(afterprop);
     } else if (type == "modifier") {
       return cont(objprop)
     } else if (type == "[") {
       return cont(expression, expect("]"), afterprop);
     } else if (type == "spread") {
       return cont(expressionNoComma, afterprop);
     } else if (value == "*") {
       cx.marked = "keyword";
       return cont(objprop);
     } else if (type == ":") {
       return pass(afterprop)
     }
   }
   function getterSetter(type) {
     if (type != "variable") return pass(afterprop);
     cx.marked = "property";
     return cont(functiondef);
   }
   function afterprop(type) {
     if (type == ":") return cont(expressionNoComma);
     if (type == "(") return pass(functiondef);
   }
   function commasep(what, end, sep) {
     function proceed(type, value) {
       if (sep ? sep.indexOf(type) > -1 : type == ",") {
         var lex = cx.state.lexical;
         if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
         return cont(function(type, value) {
           if (type == end || value == end) return pass()
           return pass(what)
         }, proceed);
       }
       if (type == end || value == end) return cont();
       return cont(expect(end));
     }
     return function(type, value) {
       if (type == end || value == end) return cont();
       return pass(what, proceed);
     };
   }
   function contCommasep(what, end, info) {
     for (var i = 3; i < arguments.length; i++)
       cx.cc.push(arguments[i]);
     return cont(pushlex(end, info), commasep(what, end), poplex);
   }
   function block(type) {
     if (type == "}") return cont();
     return pass(statement, block);
   }
   function maybetype(type, value) {
     if (isTS) {
       if (type == ":") return cont(typeexpr);
       if (value == "?") return cont(maybetype);
     }
   }
   function mayberettype(type) {
     if (isTS && type == ":") {
       if (cx.stream.match(/^\s*\w+\s+is\b/, false)) return cont(expression, isKW, typeexpr)
       else return cont(typeexpr)
     }
   }
   function isKW(_, value) {
     if (value == "is") {
       cx.marked = "keyword"
       return cont()
     }
   }
   function typeexpr(type, value) {
     if (type == "variable" || value == "void") {
       if (value == "keyof") {
         cx.marked = "keyword"
         return cont(typeexpr)
       } else {
         cx.marked = "type"
         return cont(afterType)
       }
     }
     if (type == "string" || type == "number" || type == "atom") return cont(afterType);
     if (type == "[") return cont(pushlex("]"), commasep(typeexpr, "]", ","), poplex, afterType)
     if (type == "{") return cont(pushlex("}"), commasep(typeprop, "}", ",;"), poplex, afterType)
     if (type == "(") return cont(commasep(typearg, ")"), maybeReturnType)
   }
   function maybeReturnType(type) {
     if (type == "=>") return cont(typeexpr)
   }
   function typeprop(type, value) {
     if (type == "variable" || cx.style == "keyword") {
       cx.marked = "property"
       return cont(typeprop)
     } else if (value == "?") {
       return cont(typeprop)
     } else if (type == ":") {
       return cont(typeexpr)
     } else if (type == "[") {
       return cont(expression, maybetype, expect("]"), typeprop)
     }
   }
   function typearg(type) {
     if (type == "variable") return cont(typearg)
     else if (type == ":") return cont(typeexpr)
   }
   function afterType(type, value) {
     if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
     if (value == "|" || type == ".") return cont(typeexpr)
     if (type == "[") return cont(expect("]"), afterType)
     if (value == "extends") return cont(typeexpr)
   }
   function maybeTypeArgs(_, value) {
     if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
   }
   function typeparam() {
     return pass(typeexpr, maybeTypeDefault)
   }
   function maybeTypeDefault(_, value) {
     if (value == "=") return cont(typeexpr)
   }
   function vardef() {
     return pass(pattern, maybetype, maybeAssign, vardefCont);
   }
   function pattern(type, value) {
     if (type == "modifier") return cont(pattern)
     if (type == "variable") { register(value); return cont(); }
     if (type == "spread") return cont(pattern);
     if (type == "[") return contCommasep(pattern, "]");
     if (type == "{") return contCommasep(proppattern, "}");
   }
   function proppattern(type, value) {
     if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
       register(value);
       return cont(maybeAssign);
     }
     if (type == "variable") cx.marked = "property";
     if (type == "spread") return cont(pattern);
     if (type == "}") return pass();
     return cont(expect(":"), pattern, maybeAssign);
   }
   function maybeAssign(_type, value) {
     if (value == "=") return cont(expressionNoComma);
   }
   function vardefCont(type) {
     if (type == ",") return cont(vardef);
   }
   function maybeelse(type, value) {
     if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
   }
   function forspec(type) {
     if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex);
   }
   function forspec1(type) {
     if (type == "var") return cont(vardef, expect(";"), forspec2);
     if (type == ";") return cont(forspec2);
     if (type == "variable") return cont(formaybeinof);
     return pass(expression, expect(";"), forspec2);
   }
   function formaybeinof(_type, value) {
     if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
     return cont(maybeoperatorComma, forspec2);
   }
   function forspec2(type, value) {
     if (type == ";") return cont(forspec3);
     if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
     return pass(expression, expect(";"), forspec3);
   }
   function forspec3(type) {
     if (type != ")") cont(expression);
   }
   function functiondef(type, value) {
     if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
     if (type == "variable") {register(value); return cont(functiondef);}
     if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, statement, popcontext);
     if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondef)
   }
   function funarg(type, value) {
     if (value == "@") cont(expression, funarg)
     if (type == "spread" || type == "modifier") return cont(funarg);
     return pass(pattern, maybetype, maybeAssign);
   }
   function classExpression(type, value) {
     // Class expressions may have an optional name.
     if (type == "variable") return className(type, value);
     return classNameAfter(type, value);
   }
   function className(type, value) {
     if (type == "variable") {register(value); return cont(classNameAfter);}
   }
   function classNameAfter(type, value) {
     if (value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, classNameAfter)
     if (value == "extends" || value == "implements" || (isTS && type == ","))
       return cont(isTS ? typeexpr : expression, classNameAfter);
     if (type == "{") return cont(pushlex("}"), classBody, poplex);
   }
   function classBody(type, value) {
     if (type == "modifier" || type == "async" ||
         (type == "variable" &&
          (value == "static" || value == "get" || value == "set") &&
          cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false))) {
       cx.marked = "keyword";
       return cont(classBody);
     }
     if (type == "variable" || cx.style == "keyword") {
       cx.marked = "property";
       return cont(isTS ? classfield : functiondef, classBody);
     }
     if (type == "[")
       return cont(expression, expect("]"), isTS ? classfield : functiondef, classBody)
     if (value == "*") {
       cx.marked = "keyword";
       return cont(classBody);
     }
     if (type == ";") return cont(classBody);
     if (type == "}") return cont();
     if (value == "@") return cont(expression, classBody)
   }
   function classfield(type, value) {
     if (value == "?") return cont(classfield)
     if (type == ":") return cont(typeexpr, maybeAssign)
     if (value == "=") return cont(expressionNoComma)
     return pass(functiondef)
   }
   function afterExport(type, value) {
     if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
     if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
     if (type == "{") return cont(commasep(exportField, "}"), maybeFrom, expect(";"));
     return pass(statement);
   }
   function exportField(type, value) {
     if (value == "as") { cx.marked = "keyword"; return cont(expect("variable")); }
     if (type == "variable") return pass(expressionNoComma, exportField);
   }
   function afterImport(type) {
     if (type == "string") return cont();
     return pass(importSpec, maybeMoreImports, maybeFrom);
   }
   function importSpec(type, value) {
     if (type == "{") return contCommasep(importSpec, "}");
     if (type == "variable") register(value);
     if (value == "*") cx.marked = "keyword";
     return cont(maybeAs);
   }
   function maybeMoreImports(type) {
     if (type == ",") return cont(importSpec, maybeMoreImports)
   }
   function maybeAs(_type, value) {
     if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
   }
   function maybeFrom(_type, value) {
     if (value == "from") { cx.marked = "keyword"; return cont(expression); }
   }
   function arrayLiteral(type) {
     if (type == "]") return cont();
     return pass(commasep(expressionNoComma, "]"));
   }
 
   function isContinuedStatement(state, textAfter) {
     return state.lastType == "operator" || state.lastType == "," ||
       isOperatorChar.test(textAfter.charAt(0)) ||
       /[,.]/.test(textAfter.charAt(0));
   }
 
   function expressionAllowed(stream, state, backUp) {
     return state.tokenize == tokenBase &&
       /^(?:operator|sof|keyword [bcd]|case|new|export|default|spread|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
       (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
   }
 
   // Interface
 
   return {
     startState: function(basecolumn) {
       var state = {
         tokenize: tokenBase,
         lastType: "sof",
         cc: [],
         lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
         localVars: parserConfig.localVars,
         context: parserConfig.localVars && {vars: parserConfig.localVars},
         indented: basecolumn || 0
       };
       if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
         state.globalVars = parserConfig.globalVars;
       return state;
     },
 
     token: function(stream, state) {
       if (stream.sol()) {
         if (!state.lexical.hasOwnProperty("align"))
           state.lexical.align = false;
         state.indented = stream.indentation();
         findFatArrow(stream, state);
       }
       if (state.tokenize != tokenComment && stream.eatSpace()) return null;
       var style = state.tokenize(stream, state);
       if (type == "comment") return style;
       state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
       return parseJS(state, style, type, content, stream);
     },
 
     indent: function(state, textAfter) {
       if (state.tokenize == tokenComment) return CodeMirror.Pass;
       if (state.tokenize != tokenBase) return 0;
       var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top
       // Kludge to prevent 'maybelse' from blocking lexical scope pops
       if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
         var c = state.cc[i];
         if (c == poplex) lexical = lexical.prev;
         else if (c != maybeelse) break;
       }
       while ((lexical.type == "stat" || lexical.type == "form") &&
              (firstChar == "}" || ((top = state.cc[state.cc.length - 1]) &&
                                    (top == maybeoperatorComma || top == maybeoperatorNoComma) &&
                                    !/^[,\.=+\-*:?[\(]/.test(textAfter))))
         lexical = lexical.prev;
       if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
         lexical = lexical.prev;
       var type = lexical.type, closing = firstChar == type;
 
       if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0);
       else if (type == "form" && firstChar == "{") return lexical.indented;
       else if (type == "form") return lexical.indented + indentUnit;
       else if (type == "stat")
         return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
       else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
         return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
       else if (lexical.align) return lexical.column + (closing ? 0 : 1);
       else return lexical.indented + (closing ? 0 : indentUnit);
     },
 
     electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
     blockCommentStart: jsonMode ? null : "/*",
     blockCommentEnd: jsonMode ? null : "*/",
     blockCommentContinue: jsonMode ? null : " * ",
     lineComment: jsonMode ? null : "//",
     fold: "brace",
     closeBrackets: "()[]{}''\"\"``",
 
     helperType: jsonMode ? "json" : "javascript",
     jsonldMode: jsonldMode,
     jsonMode: jsonMode,
 
     expressionAllowed: expressionAllowed,
 
     skipExpression: function(state) {
       var top = state.cc[state.cc.length - 1]
       if (top == expression || top == expressionNoComma) state.cc.pop()
     }
   };
 });
 
 CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
 
 CodeMirror.defineMIME("text/javascript", "javascript");
 CodeMirror.defineMIME("text/ecmascript", "javascript");
 CodeMirror.defineMIME("application/javascript", "javascript");
 CodeMirror.defineMIME("application/x-javascript", "javascript");
 CodeMirror.defineMIME("application/ecmascript", "javascript");
 CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
 CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
 CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
 CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
 CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
 
 });