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-rw-r--r--media/codemirror/javascript.js422
1 files changed, 422 insertions, 0 deletions
diff --git a/media/codemirror/javascript.js b/media/codemirror/javascript.js
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+// TODO actually recognize syntax of TypeScript constructs
+
+CodeMirror.defineMode("javascript", function(config, parserConfig) {
+ var indentUnit = config.indentUnit;
+ var jsonMode = parserConfig.json;
+ var isTS = parserConfig.typescript;
+
+ // 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");
+ var operator = kw("operator"), atom = {type: "atom", style: "atom"};
+
+ var jsKeywords = {
+ "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"), "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
+ };
+
+ // Extend the 'normal' keywords with the TypeScript language extensions
+ if (isTS) {
+ var type = {type: "variable", style: "variable-3"};
+ var tsKeywords = {
+ // object-like things
+ "interface": kw("interface"),
+ "class": kw("class"),
+ "extends": kw("extends"),
+ "constructor": kw("constructor"),
+
+ // scope modifiers
+ "public": kw("public"),
+ "private": kw("private"),
+ "protected": kw("protected"),
+ "static": kw("static"),
+
+ "super": kw("super"),
+
+ // types
+ "string": type, "number": type, "bool": type, "any": type
+ };
+
+ for (var attr in tsKeywords) {
+ jsKeywords[attr] = tsKeywords[attr];
+ }
+ }
+
+ return jsKeywords;
+ }();
+
+ 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", "number");
+ }
+ else if (/\d/.test(ch) || ch == "-" && stream.eat(/\d/)) {
+ stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
+ return ret("number", "number");
+ }
+ else if (ch == "/") {
+ if (stream.eat("*")) {
+ return chain(stream, state, jsTokenComment);
+ }
+ else if (stream.eat("/")) {
+ stream.skipToEnd();
+ return ret("comment", "comment");
+ }
+ else if (state.lastType == "operator" || state.lastType == "keyword c" ||
+ /^[\[{}\(,;:]$/.test(state.lastType)) {
+ nextUntilUnescaped(stream, "/");
+ stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla
+ return ret("regexp", "string-2");
+ }
+ else {
+ stream.eatWhile(isOperatorChar);
+ return ret("operator", null, stream.current());
+ }
+ }
+ else if (ch == "#") {
+ stream.skipToEnd();
+ return ret("error", "error");
+ }
+ 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 && state.lastType != ".") ? ret(known.type, known.style, word) :
+ ret("variable", "variable", word);
+ }
+ }
+
+ function jsTokenString(quote) {
+ return function(stream, state) {
+ if (!nextUntilUnescaped(stream, quote))
+ state.tokenize = jsTokenBase;
+ return ret("string", "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", "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 "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;
+ if (state.context) {
+ cx.marked = "def";
+ if (inList(state.localVars)) return;
+ state.localVars = {name: varname, next: state.localVars};
+ } else {
+ if (inList(state.globalVars)) return;
+ 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;
+ 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(maybeexpression);
+ if (type == "(") return cont(pushlex(")"), maybeexpression, 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 maybeexpression(type) {
+ if (type.match(/[;\}\)\],]/)) return pass();
+ return pass(expression);
+ }
+
+ function maybeoperator(type, value) {
+ if (type == "operator" && /\+\+|--/.test(value)) return cont(maybeoperator);
+ if (type == "operator" && value == "?") return cont(expression, expect(":"), 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 = "property"; return cont();}
+ }
+ function objprop(type) {
+ if (type == "variable") cx.marked = "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 maybetype(type) {
+ if (type == ":") return cont(typedef);
+ return pass();
+ }
+ function typedef(type) {
+ if (type == "variable"){cx.marked = "variable-3"; return cont();}
+ return pass();
+ }
+ function vardef1(type, value) {
+ if (type == "variable") {
+ register(value);
+ return isTS ? cont(maybetype, vardef2) : cont(vardef2);
+ }
+ return pass();
+ }
+ function vardef2(type, value) {
+ if (value == "=") return cont(expression, vardef2);
+ if (type == ",") return cont(vardef1);
+ }
+ function forspec1(type) {
+ if (type == "var") return cont(vardef1, expect(";"), forspec2);
+ if (type == ";") return cont(forspec2);
+ if (type == "variable") return cont(formaybein);
+ return cont(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 isTS ? cont(maybetype) : cont();}
+ }
+
+ // Interface
+
+ return {
+ startState: function(basecolumn) {
+ return {
+ tokenize: jsTokenBase,
+ lastType: null,
+ cc: [],
+ lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
+ localVars: parserConfig.localVars,
+ globalVars: parserConfig.globalVars,
+ context: parserConfig.localVars && {vars: parserConfig.localVars},
+ 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.lastType = type;
+ return parseJS(state, style, type, content, stream);
+ },
+
+ indent: function(state, textAfter) {
+ if (state.tokenize == jsTokenComment) return CodeMirror.Pass;
+ if (state.tokenize != jsTokenBase) return 0;
+ var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical;
+ if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev;
+ var type = lexical.type, closing = firstChar == type;
+ if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? 4 : 0);
+ else if (type == "form" && firstChar == "{") return lexical.indented;
+ else if (type == "form") return lexical.indented + indentUnit;
+ else if (type == "stat")
+ return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? indentUnit : 0);
+ 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: ":{}",
+
+ jsonMode: jsonMode
+ };
+});
+
+CodeMirror.defineMIME("text/javascript", "javascript");
+CodeMirror.defineMIME("text/ecmascript", "javascript");
+CodeMirror.defineMIME("application/javascript", "javascript");
+CodeMirror.defineMIME("application/ecmascript", "javascript");
+CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
+CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
+CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
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