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dependencies: Adding Bower out of nixpkgs Usually bower would be installed globally, so it seems to be appropriate to use the one out of the nixpkgs so that we don't have to pin a specific version ourselves.

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coffeescript.js
355 lines | 9.7 KiB | application/javascript | JavascriptLexer
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
/**
* Link to the project's GitHub page:
* https://github.com/pickhardt/coffeescript-codemirror-mode
*/
(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("coffeescript", function(conf, parserConf) {
var ERRORCLASS = "error";
function wordRegexp(words) {
return new RegExp("^((" + words.join(")|(") + "))\\b");
}
var operators = /^(?:->|=>|\+[+=]?|-[\-=]?|\*[\*=]?|\/[\/=]?|[=!]=|<[><]?=?|>>?=?|%=?|&=?|\|=?|\^=?|\~|!|\?|(or|and|\|\||&&|\?)=)/;
var delimiters = /^(?:[()\[\]{},:`=;]|\.\.?\.?)/;
var identifiers = /^[_A-Za-z$][_A-Za-z$0-9]*/;
var atProp = /^@[_A-Za-z$][_A-Za-z$0-9]*/;
var wordOperators = wordRegexp(["and", "or", "not",
"is", "isnt", "in",
"instanceof", "typeof"]);
var indentKeywords = ["for", "while", "loop", "if", "unless", "else",
"switch", "try", "catch", "finally", "class"];
var commonKeywords = ["break", "by", "continue", "debugger", "delete",
"do", "in", "of", "new", "return", "then",
"this", "@", "throw", "when", "until", "extends"];
var keywords = wordRegexp(indentKeywords.concat(commonKeywords));
indentKeywords = wordRegexp(indentKeywords);
var stringPrefixes = /^('{3}|\"{3}|['\"])/;
var regexPrefixes = /^(\/{3}|\/)/;
var commonConstants = ["Infinity", "NaN", "undefined", "null", "true", "false", "on", "off", "yes", "no"];
var constants = wordRegexp(commonConstants);
// Tokenizers
function tokenBase(stream, state) {
// Handle scope changes
if (stream.sol()) {
if (state.scope.align === null) state.scope.align = false;
var scopeOffset = state.scope.offset;
if (stream.eatSpace()) {
var lineOffset = stream.indentation();
if (lineOffset > scopeOffset && state.scope.type == "coffee") {
return "indent";
} else if (lineOffset < scopeOffset) {
return "dedent";
}
return null;
} else {
if (scopeOffset > 0) {
dedent(stream, state);
}
}
}
if (stream.eatSpace()) {
return null;
}
var ch = stream.peek();
// Handle docco title comment (single line)
if (stream.match("####")) {
stream.skipToEnd();
return "comment";
}
// Handle multi line comments
if (stream.match("###")) {
state.tokenize = longComment;
return state.tokenize(stream, state);
}
// Single line comment
if (ch === "#") {
stream.skipToEnd();
return "comment";
}
// Handle number literals
if (stream.match(/^-?[0-9\.]/, false)) {
var floatLiteral = false;
// Floats
if (stream.match(/^-?\d*\.\d+(e[\+\-]?\d+)?/i)) {
floatLiteral = true;
}
if (stream.match(/^-?\d+\.\d*/)) {
floatLiteral = true;
}
if (stream.match(/^-?\.\d+/)) {
floatLiteral = true;
}
if (floatLiteral) {
// prevent from getting extra . on 1..
if (stream.peek() == "."){
stream.backUp(1);
}
return "number";
}
// Integers
var intLiteral = false;
// Hex
if (stream.match(/^-?0x[0-9a-f]+/i)) {
intLiteral = true;
}
// Decimal
if (stream.match(/^-?[1-9]\d*(e[\+\-]?\d+)?/)) {
intLiteral = true;
}
// Zero by itself with no other piece of number.
if (stream.match(/^-?0(?![\dx])/i)) {
intLiteral = true;
}
if (intLiteral) {
return "number";
}
}
// Handle strings
if (stream.match(stringPrefixes)) {
state.tokenize = tokenFactory(stream.current(), false, "string");
return state.tokenize(stream, state);
}
// Handle regex literals
if (stream.match(regexPrefixes)) {
if (stream.current() != "/" || stream.match(/^.*\//, false)) { // prevent highlight of division
state.tokenize = tokenFactory(stream.current(), true, "string-2");
return state.tokenize(stream, state);
} else {
stream.backUp(1);
}
}
// Handle operators and delimiters
if (stream.match(operators) || stream.match(wordOperators)) {
return "operator";
}
if (stream.match(delimiters)) {
return "punctuation";
}
if (stream.match(constants)) {
return "atom";
}
if (stream.match(atProp) || state.prop && stream.match(identifiers)) {
return "property";
}
if (stream.match(keywords)) {
return "keyword";
}
if (stream.match(identifiers)) {
return "variable";
}
// Handle non-detected items
stream.next();
return ERRORCLASS;
}
function tokenFactory(delimiter, singleline, outclass) {
return function(stream, state) {
while (!stream.eol()) {
stream.eatWhile(/[^'"\/\\]/);
if (stream.eat("\\")) {
stream.next();
if (singleline && stream.eol()) {
return outclass;
}
} else if (stream.match(delimiter)) {
state.tokenize = tokenBase;
return outclass;
} else {
stream.eat(/['"\/]/);
}
}
if (singleline) {
if (parserConf.singleLineStringErrors) {
outclass = ERRORCLASS;
} else {
state.tokenize = tokenBase;
}
}
return outclass;
};
}
function longComment(stream, state) {
while (!stream.eol()) {
stream.eatWhile(/[^#]/);
if (stream.match("###")) {
state.tokenize = tokenBase;
break;
}
stream.eatWhile("#");
}
return "comment";
}
function indent(stream, state, type) {
type = type || "coffee";
var offset = 0, align = false, alignOffset = null;
for (var scope = state.scope; scope; scope = scope.prev) {
if (scope.type === "coffee" || scope.type == "}") {
offset = scope.offset + conf.indentUnit;
break;
}
}
if (type !== "coffee") {
align = null;
alignOffset = stream.column() + stream.current().length;
} else if (state.scope.align) {
state.scope.align = false;
}
state.scope = {
offset: offset,
type: type,
prev: state.scope,
align: align,
alignOffset: alignOffset
};
}
function dedent(stream, state) {
if (!state.scope.prev) return;
if (state.scope.type === "coffee") {
var _indent = stream.indentation();
var matched = false;
for (var scope = state.scope; scope; scope = scope.prev) {
if (_indent === scope.offset) {
matched = true;
break;
}
}
if (!matched) {
return true;
}
while (state.scope.prev && state.scope.offset !== _indent) {
state.scope = state.scope.prev;
}
return false;
} else {
state.scope = state.scope.prev;
return false;
}
}
function tokenLexer(stream, state) {
var style = state.tokenize(stream, state);
var current = stream.current();
// Handle scope changes.
if (current === "return") {
state.dedent = true;
}
if (((current === "->" || current === "=>") && stream.eol())
|| style === "indent") {
indent(stream, state);
}
var delimiter_index = "[({".indexOf(current);
if (delimiter_index !== -1) {
indent(stream, state, "])}".slice(delimiter_index, delimiter_index+1));
}
if (indentKeywords.exec(current)){
indent(stream, state);
}
if (current == "then"){
dedent(stream, state);
}
if (style === "dedent") {
if (dedent(stream, state)) {
return ERRORCLASS;
}
}
delimiter_index = "])}".indexOf(current);
if (delimiter_index !== -1) {
while (state.scope.type == "coffee" && state.scope.prev)
state.scope = state.scope.prev;
if (state.scope.type == current)
state.scope = state.scope.prev;
}
if (state.dedent && stream.eol()) {
if (state.scope.type == "coffee" && state.scope.prev)
state.scope = state.scope.prev;
state.dedent = false;
}
return style;
}
var external = {
startState: function(basecolumn) {
return {
tokenize: tokenBase,
scope: {offset:basecolumn || 0, type:"coffee", prev: null, align: false},
prop: false,
dedent: 0
};
},
token: function(stream, state) {
var fillAlign = state.scope.align === null && state.scope;
if (fillAlign && stream.sol()) fillAlign.align = false;
var style = tokenLexer(stream, state);
if (style && style != "comment") {
if (fillAlign) fillAlign.align = true;
state.prop = style == "punctuation" && stream.current() == "."
}
return style;
},
indent: function(state, text) {
if (state.tokenize != tokenBase) return 0;
var scope = state.scope;
var closer = text && "])}".indexOf(text.charAt(0)) > -1;
if (closer) while (scope.type == "coffee" && scope.prev) scope = scope.prev;
var closes = closer && scope.type === text.charAt(0);
if (scope.align)
return scope.alignOffset - (closes ? 1 : 0);
else
return (closes ? scope.prev : scope).offset;
},
lineComment: "#",
fold: "indent"
};
return external;
});
CodeMirror.defineMIME("text/x-coffeescript", "coffeescript");
CodeMirror.defineMIME("text/coffeescript", "coffeescript");
});