diff options
Diffstat (limited to 'plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.js')
| -rw-r--r-- | plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.js | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.js b/plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.js new file mode 100644 index 000000000..065216591 --- /dev/null +++ b/plugins/LocalFilesEditor/codemirror/mode/javascript/javascript.js @@ -0,0 +1,348 @@ +CodeMirror.defineMode("javascript", function(config, parserConfig) { + var indentUnit = config.indentUnit; + var jsonMode = parserConfig.json; + + // Tokenizer + + var keywords = function(){ + function kw(type) {return {type: type, style: "js-keyword"};} + var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"); + var operator = kw("operator"), atom = {type: "atom", style: "js-atom"}; + return { + "if": A, "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B, + "return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C, + "var": 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 + }; + }(); + + var isOperatorChar = /[+\-*&%=<>!?|]/; + + function chain(stream, state, f) { + state.tokenize = f; + return f(stream, state); + } + + function nextUntilUnescaped(stream, end) { + var escaped = false, next; + while ((next = stream.next()) != null) { + if (next == end && !escaped) + return false; + escaped = !escaped && next == "\\"; + } + return escaped; + } + + // 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 jsTokenBase(stream, state) { + var ch = stream.next(); + if (ch == '"' || ch == "'") + return chain(stream, state, jsTokenString(ch)); + else if (/[\[\]{}\(\),;\:\.]/.test(ch)) + return ret(ch); + else if (ch == "0" && stream.eat(/x/i)) { + stream.eatWhile(/[\da-f]/i); + return ret("number", "js-atom"); + } + else if (/\d/.test(ch)) { + stream.match(/^\d*(?:\.\d*)?(?:e[+\-]?\d+)?/); + return ret("number", "js-atom"); + } + else if (ch == "/") { + if (stream.eat("*")) { + return chain(stream, state, jsTokenComment); + } + else if (stream.eat("/")) { + stream.skipToEnd(); + return ret("comment", "js-comment"); + } + else if (state.reAllowed) { + nextUntilUnescaped(stream, "/"); + stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla + return ret("regexp", "js-string"); + } + else { + stream.eatWhile(isOperatorChar); + return ret("operator", null, stream.current()); + } + } + else if (isOperatorChar.test(ch)) { + stream.eatWhile(isOperatorChar); + return ret("operator", null, stream.current()); + } + else { + stream.eatWhile(/[\w\$_]/); + var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word]; + return known ? ret(known.type, known.style, word) : + ret("variable", "js-variable", word); + } + } + + function jsTokenString(quote) { + return function(stream, state) { + if (!nextUntilUnescaped(stream, quote)) + state.tokenize = jsTokenBase; + return ret("string", "js-string"); + }; + } + + function jsTokenComment(stream, state) { + var maybeEnd = false, ch; + while (ch = stream.next()) { + if (ch == "/" && maybeEnd) { + state.tokenize = jsTokenBase; + break; + } + maybeEnd = (ch == "*"); + } + return ret("comment", "js-comment"); + } + + // Parser + + var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": 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; + } + + 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; + + 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 "js-localvariable"; + 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) { + var state = cx.state; + if (state.context) { + cx.marked = "js-variabledef"; + for (var v = state.localVars; v; v = v.next) + if (v.name == varname) return; + state.localVars = {name: varname, next: state.localVars}; + } + } + + // Combinators + + var defaultVars = {name: "this", next: {name: "arguments"}}; + function pushcontext() { + if (!cx.state.context) cx.state.localVars = defaultVars; + cx.state.context = {prev: cx.state.context, vars: cx.state.localVars}; + } + 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; + state.lexical = new JSLexical(state.indented, 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) { + return function expecting(type) { + if (type == wanted) return cont(); + else if (wanted == ";") return pass(); + else return cont(arguments.callee); + }; + } + + function statement(type) { + if (type == "var") return cont(pushlex("vardef"), vardef1, expect(";"), poplex); + if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex); + if (type == "keyword b") return cont(pushlex("form"), statement, poplex); + if (type == "{") return cont(pushlex("}"), block, poplex); + if (type == ";") return cont(); + if (type == "function") return cont(functiondef); + if (type == "for") return cont(pushlex("form"), expect("("), pushlex(")"), forspec1, expect(")"), + poplex, statement, poplex); + if (type == "variable") return cont(pushlex("stat"), maybelabel); + if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"), + 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); + return pass(pushlex("stat"), expression, expect(";"), poplex); + } + function expression(type) { + if (atomicTypes.hasOwnProperty(type)) return cont(maybeoperator); + if (type == "function") return cont(functiondef); + if (type == "keyword c") return cont(expression); + if (type == "(") return cont(pushlex(")"), expression, expect(")"), poplex, maybeoperator); + if (type == "operator") return cont(expression); + if (type == "[") return cont(pushlex("]"), commasep(expression, "]"), poplex, maybeoperator); + if (type == "{") return cont(pushlex("}"), commasep(objprop, "}"), poplex, maybeoperator); + return cont(); + } + function maybeoperator(type, value) { + if (type == "operator" && /\+\+|--/.test(value)) return cont(maybeoperator); + if (type == "operator") return cont(expression); + if (type == ";") return; + if (type == "(") return cont(pushlex(")"), commasep(expression, ")"), poplex, maybeoperator); + if (type == ".") return cont(property, maybeoperator); + if (type == "[") return cont(pushlex("]"), expression, expect("]"), poplex, maybeoperator); + } + function maybelabel(type) { + if (type == ":") return cont(poplex, statement); + return pass(maybeoperator, expect(";"), poplex); + } + function property(type) { + if (type == "variable") {cx.marked = "js-property"; return cont();} + } + function objprop(type) { + if (type == "variable") cx.marked = "js-property"; + if (atomicTypes.hasOwnProperty(type)) return cont(expect(":"), expression); + } + function commasep(what, end) { + function proceed(type) { + if (type == ",") return cont(what, proceed); + if (type == end) return cont(); + return cont(expect(end)); + } + return function commaSeparated(type) { + if (type == end) return cont(); + else return pass(what, proceed); + }; + } + function block(type) { + if (type == "}") return cont(); + return pass(statement, block); + } + function vardef1(type, value) { + if (type == "variable"){register(value); return cont(vardef2);} + return cont(); + } + function vardef2(type, value) { + if (value == "=") return cont(expression, vardef2); + if (type == ",") return cont(vardef1); + } + function forspec1(type) { + if (type == "var") return cont(vardef1, forspec2); + if (type == ";") return pass(forspec2); + if (type == "variable") return cont(formaybein); + return pass(forspec2); + } + function formaybein(type, value) { + if (value == "in") return cont(expression); + return cont(maybeoperator, forspec2); + } + function forspec2(type, value) { + if (type == ";") return cont(forspec3); + if (value == "in") return cont(expression); + return cont(expression, expect(";"), forspec3); + } + function forspec3(type) { + if (type != ")") cont(expression); + } + function functiondef(type, value) { + if (type == "variable") {register(value); return cont(functiondef);} + if (type == "(") return cont(pushlex(")"), pushcontext, commasep(funarg, ")"), poplex, statement, popcontext); + } + function funarg(type, value) { + if (type == "variable") {register(value); return cont();} + } + + // Interface + + return { + startState: function(basecolumn) { + return { + tokenize: jsTokenBase, + reAllowed: true, + cc: [], + lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false), + localVars: null, + context: null, + indented: 0 + }; + }, + + token: function(stream, state) { + if (stream.sol()) { + if (!state.lexical.hasOwnProperty("align")) + state.lexical.align = false; + state.indented = stream.indentation(); + } + if (stream.eatSpace()) return null; + var style = state.tokenize(stream, state); + if (type == "comment") return style; + state.reAllowed = type == "operator" || type == "keyword c" || type.match(/^[\[{}\(,;:]$/); + return parseJS(state, style, type, content, stream); + }, + + indent: function(state, textAfter) { + if (state.tokenize != jsTokenBase) return 0; + var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, + type = lexical.type, closing = firstChar == type; + if (type == "vardef") return lexical.indented + 4; + else if (type == "form" && firstChar == "{") return lexical.indented; + else if (type == "stat" || type == "form") return lexical.indented + indentUnit; + else if (lexical.info == "switch" && !closing) + 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); + }, + + electricChars: ":{}" + }; +}); + +CodeMirror.defineMIME("text/javascript", "javascript"); +CodeMirror.defineMIME("application/json", {name: "javascript", json: true}); |