|
|
// TODO actually recognize syntax of TypeScript constructs
|
|
|
|
|
|
CodeMirror.defineMode("javascript", function(config, parserConfig) {
|
|
|
var indentUnit = config.indentUnit;
|
|
|
var statementIndent = parserConfig.statementIndent;
|
|
|
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"};
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|
|
|
|
|
var jsKeywords = {
|
|
|
"if": kw("if"), "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"),
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|
|
"function": kw("function"), "catch": kw("catch"),
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|
|
"for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
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|
|
"in": operator, "typeof": operator, "instanceof": operator,
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|
|
"true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
|
|
|
"this": kw("this")
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|
|
};
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|
|
|
|
// Extend the 'normal' keywords with the TypeScript language extensions
|
|
|
if (isTS) {
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|
|
var type = {type: "variable", style: "variable-3"};
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|
|
var tsKeywords = {
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|
|
// object-like things
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|
"interface": kw("interface"),
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|
"class": kw("class"),
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|
"extends": kw("extends"),
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|
|
"constructor": kw("constructor"),
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|
|
|
|
|
// scope modifiers
|
|
|
"public": kw("public"),
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|
|
"private": kw("private"),
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|
|
"protected": kw("protected"),
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|
|
"static": kw("static"),
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|
|
|
|
|
"super": kw("super"),
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|
|
|
|
|
// types
|
|
|
"string": type, "number": type, "bool": type, "any": type
|
|
|
};
|
|
|
|
|
|
for (var attr in tsKeywords) {
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|
|
jsKeywords[attr] = tsKeywords[attr];
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|
|
}
|
|
|
}
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|
|
|
|
return jsKeywords;
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|
|
}();
|
|
|
|
|
|
var isOperatorChar = /[+\-*&%=<>!?|~^]/;
|
|
|
|
|
|
function chain(stream, state, f) {
|
|
|
state.tokenize = f;
|
|
|
return f(stream, state);
|
|
|
}
|
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|
|
|
|
function nextUntilUnescaped(stream, end) {
|
|
|
var escaped = false, next;
|
|
|
while ((next = stream.next()) != null) {
|
|
|
if (next == end && !escaped)
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|
|
return false;
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|
|
escaped = !escaped && next == "\\";
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|
|
}
|
|
|
return escaped;
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|
|
}
|
|
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|
|
|
// Used as scratch variables to communicate multiple values without
|
|
|
// consing up tons of objects.
|
|
|
var type, content;
|
|
|
function ret(tp, style, cont) {
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|
|
type = tp; content = cont;
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|
|
return style;
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|
|
}
|
|
|
|
|
|
function jsTokenBase(stream, state) {
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|
var ch = stream.next();
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|
|
if (ch == '"' || ch == "'")
|
|
|
return chain(stream, state, jsTokenString(ch));
|
|
|
else if (/[\[\]{}\(\),;\:\.]/.test(ch))
|
|
|
return ret(ch);
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|
|
else if (ch == "0" && stream.eat(/x/i)) {
|
|
|
stream.eatWhile(/[\da-f]/i);
|
|
|
return ret("number", "number");
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|
|
}
|
|
|
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, "this": 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, indent = state.indented;
|
|
|
if (state.lexical.type == "stat") indent = state.lexical.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) {
|
|
|
return function(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 == "if") return cont(pushlex("form"), expression, statement, poplex, maybeelse(cx.state.indented));
|
|
|
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) {
|
|
|
return expressionInner(type, false);
|
|
|
}
|
|
|
function expressionNoComma(type) {
|
|
|
return expressionInner(type, true);
|
|
|
}
|
|
|
function expressionInner(type, noComma) {
|
|
|
var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
|
|
|
if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
|
|
|
if (type == "function") return cont(functiondef);
|
|
|
if (type == "keyword c") return cont(noComma ? maybeexpressionNoComma : maybeexpression);
|
|
|
if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop);
|
|
|
if (type == "operator") return cont(noComma ? expressionNoComma : expression);
|
|
|
if (type == "[") return cont(pushlex("]"), commasep(expressionNoComma, "]"), poplex, maybeop);
|
|
|
if (type == "{") return cont(pushlex("}"), commasep(objprop, "}"), poplex, maybeop);
|
|
|
return cont();
|
|
|
}
|
|
|
function maybeexpression(type) {
|
|
|
if (type.match(/[;\}\)\],]/)) return pass();
|
|
|
return pass(expression);
|
|
|
}
|
|
|
function maybeexpressionNoComma(type) {
|
|
|
if (type.match(/[;\}\)\],]/)) return pass();
|
|
|
return pass(expressionNoComma);
|
|
|
}
|
|
|
|
|
|
function maybeoperatorComma(type, value) {
|
|
|
if (type == ",") return cont(expression);
|
|
|
return maybeoperatorNoComma(type, value, maybeoperatorComma);
|
|
|
}
|
|
|
function maybeoperatorNoComma(type, value, me) {
|
|
|
if (!me) me = maybeoperatorNoComma;
|
|
|
if (type == "operator") {
|
|
|
if (/\+\+|--/.test(value)) return cont(me);
|
|
|
if (value == "?") return cont(expression, expect(":"), expression);
|
|
|
return cont(expression);
|
|
|
}
|
|
|
if (type == ";") return;
|
|
|
if (type == "(") return cont(pushlex(")", "call"), commasep(expressionNoComma, ")"), poplex, me);
|
|
|
if (type == ".") return cont(property, me);
|
|
|
if (type == "[") return cont(pushlex("]"), expression, expect("]"), poplex, me);
|
|
|
}
|
|
|
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 == "variable") {
|
|
|
cx.marked = "property";
|
|
|
if (value == "get" || value == "set") return cont(getterSetter);
|
|
|
} else if (type == "number" || type == "string") {
|
|
|
cx.marked = type + " property";
|
|
|
}
|
|
|
if (atomicTypes.hasOwnProperty(type)) return cont(expect(":"), expressionNoComma);
|
|
|
}
|
|
|
function getterSetter(type) {
|
|
|
if (type == ":") return cont(expression);
|
|
|
if (type != "variable") return cont(expect(":"), expression);
|
|
|
cx.marked = "property";
|
|
|
return cont(functiondef);
|
|
|
}
|
|
|
function commasep(what, end) {
|
|
|
function proceed(type) {
|
|
|
if (type == ",") {
|
|
|
var lex = cx.state.lexical;
|
|
|
if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
|
|
|
return cont(what, proceed);
|
|
|
}
|
|
|
if (type == end) return cont();
|
|
|
return cont(expect(end));
|
|
|
}
|
|
|
return function(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(expressionNoComma, vardef2);
|
|
|
if (type == ",") return cont(vardef1);
|
|
|
}
|
|
|
function maybeelse(indent) {
|
|
|
return function(type, value) {
|
|
|
if (type == "keyword b" && value == "else") {
|
|
|
cx.state.lexical = new JSLexical(indent, 0, "form", null, cx.state.lexical);
|
|
|
return cont(statement, poplex);
|
|
|
}
|
|
|
return pass();
|
|
|
};
|
|
|
}
|
|
|
function forspec1(type) {
|
|
|
if (type == "var") return cont(vardef1, expect(";"), forspec2);
|
|
|
if (type == ";") return cont(forspec2);
|
|
|
if (type == "variable") return cont(formaybein);
|
|
|
return pass(expression, expect(";"), forspec2);
|
|
|
}
|
|
|
function formaybein(_type, value) {
|
|
|
if (value == "in") return cont(expression);
|
|
|
return cont(maybeoperatorComma, forspec2);
|
|
|
}
|
|
|
function forspec2(type, value) {
|
|
|
if (type == ";") return cont(forspec3);
|
|
|
if (value == "in") return cont(expression);
|
|
|
return pass(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();}
|
|
|
}
|
|
|
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// Interface
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return {
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startState: function(basecolumn) {
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return {
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tokenize: jsTokenBase,
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lastType: null,
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cc: [],
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lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
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localVars: parserConfig.localVars,
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globalVars: parserConfig.globalVars,
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context: parserConfig.localVars && {vars: parserConfig.localVars},
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indented: 0
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};
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},
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token: function(stream, state) {
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if (stream.sol()) {
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if (!state.lexical.hasOwnProperty("align"))
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state.lexical.align = false;
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state.indented = stream.indentation();
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}
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if (state.tokenize != jsTokenComment && stream.eatSpace()) return null;
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var style = state.tokenize(stream, state);
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if (type == "comment") return style;
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state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
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return parseJS(state, style, type, content, stream);
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},
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indent: function(state, textAfter) {
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if (state.tokenize == jsTokenComment) return CodeMirror.Pass;
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if (state.tokenize != jsTokenBase) return 0;
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var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical;
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if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev;
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if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
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lexical = lexical.prev;
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var type = lexical.type, closing = firstChar == type;
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if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? 4 : 0);
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else if (type == "form" && firstChar == "{") return lexical.indented;
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else if (type == "form") return lexical.indented + indentUnit;
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else if (type == "stat")
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return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? statementIndent || indentUnit : 0);
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else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
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return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
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else if (lexical.align) return lexical.column + (closing ? 0 : 1);
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else return lexical.indented + (closing ? 0 : indentUnit);
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},
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electricChars: ":{}",
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blockCommentStart: jsonMode ? null : "/*",
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blockCommentEnd: jsonMode ? null : "*/",
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lineComment: jsonMode ? null : "//",
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jsonMode: jsonMode
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};
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});
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CodeMirror.defineMIME("text/javascript", "javascript");
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CodeMirror.defineMIME("text/ecmascript", "javascript");
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CodeMirror.defineMIME("application/javascript", "javascript");
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CodeMirror.defineMIME("application/ecmascript", "javascript");
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CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
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CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
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CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
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CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
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