codemirror-mode-livescript.js

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

/**
 * Link to the project's GitHub page:
 * https://github.com/duralog/CodeMirror
 */

(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('livescript', function () {
		var tokenBase = function (stream, state) {
			var next_rule = state.next || "start";
			if (next_rule) {
				state.next = state.next;
				var nr = Rules[next_rule];
				if (nr.splice) {
					for (var i$ = 0; i$ < nr.length; ++i$) {
						var r = nr[i$];
						if (r.regex && stream.match(r.regex)) {
							state.next = r.next || state.next;
							return r.token;
						}
					}
					stream.next();
					return 'error';
				}
				if (stream.match(r = Rules[next_rule])) {
					if (r.regex && stream.match(r.regex)) {
						state.next = r.next;
						return r.token;
					} else {
						stream.next();
						return 'error';
					}
				}
			}
			stream.next();
			return 'error';
		};
		var external = {
			startState: function () {
				return {
					next: 'start',
					lastToken: { style: null, indent: 0, content: "" }
				};
			},
			token: function (stream, state) {
				while (stream.pos == stream.start)
					var style = tokenBase(stream, state);
				state.lastToken = {
					style: style,
					indent: stream.indentation(),
					content: stream.current()
				};
				return style.replace(/\./g, ' ');
			},
			indent: function (state) {
				var indentation = state.lastToken.indent;
				if (state.lastToken.content.match(indenter)) {
					indentation += 2;
				}
				return indentation;
			}
		};
		return external;
	});

	var identifier = '(?![\\d\\s])[$\\w\\xAA-\\uFFDC](?:(?!\\s)[$\\w\\xAA-\\uFFDC]|-[A-Za-z])*';
	var indenter = RegExp('(?:[({[=:]|[-~]>|\\b(?:e(?:lse|xport)|d(?:o|efault)|t(?:ry|hen)|finally|import(?:\\s*all)?|const|var|let|new|catch(?:\\s*' + identifier + ')?))\\s*$');
	var keywordend = '(?![$\\w]|-[A-Za-z]|\\s*:(?![:=]))';
	var stringfill = {
		token: 'string',
		regex: '.+'
	};
	var Rules = {
		start: [
			{
				token: 'indent text',
				regex: ' {3}'
			}, {
				token: 'puntuation',
				regex: '[.,;]'
			}, {
				token: 'comment.doc',
				regex: '/\\*',
				next: 'comment'
			}, {
				token: 'comment',
				regex: '#.*'
			}, {
				token: 'keyword',
				regex: '(?:t(?:h(?:is|row|en)|ry|ypeof!?)|c(?:on(?:tinue|st)|a(?:se|tch)|lass)|i(?:n(?:stanceof)?|mp(?:ort(?:\\s+all)?|lements)|[fs])|d(?:e(?:fault|lete|bugger)|o)|f(?:or(?:\\s+own)?|inally|unction)|s(?:uper|witch)|e(?:lse|x(?:tends|port)|val)|a(?:nd|rguments)|n(?:ew|ot)|un(?:less|til)|w(?:hile|ith)|o[fr]|return|break|let|var|loop)' + keywordend
			}, {
				token: 'constant.language',
				regex: '(?:true|false|yes|no|on|off|null|void|undefined)' + keywordend
			}, {
				token: 'invalid.illegal',
				regex: '(?:p(?:ackage|r(?:ivate|otected)|ublic)|i(?:mplements|nterface)|enum|static|yield)' + keywordend
			}, {
				token: 'language.support.class',
				regex: '(?:R(?:e(?:gExp|ferenceError)|angeError)|S(?:tring|yntaxError)|E(?:rror|valError)|Array|Boolean|Date|Function|Number|Object|TypeError|URIError)' + keywordend
			}, {
				token: 'language.support.function',
				regex: '(?:is(?:NaN|Finite)|parse(?:Int|Float)|Math|JSON|(?:en|de)codeURI(?:Component)?)' + keywordend
			}, {
				token: 'variable.language',
				regex: '(?:t(?:hat|il|o)|f(?:rom|allthrough)|it|by|e)' + keywordend
			}, {
				token: 'identifier',
				regex: identifier + '\\s*:(?![:=])'
			}, {
				token: 'variable',
				regex: identifier
			}, {
				token: 'keyword.operator',
				regex: '(?:\\.{3}|\\s+\\?)'
			}, {
				token: 'keyword.variable',
				regex: '(?:@+|::|\\.\\.)',
				next: 'key'
			}, {
				token: 'keyword.operator',
				regex: '\\.\\s*',
				next: 'key'
			}, {
				token: 'string',
				regex: '\\\\\\S[^\\s,;)}\\]]*'
			}, {
				token: 'string.doc',
				regex: '\'\'\'',
				next: 'qdoc'
			}, {
				token: 'string.doc',
				regex: '"""',
				next: 'qqdoc'
			}, {
				token: 'string',
				regex: '\'',
				next: 'qstring'
			}, {
				token: 'string',
				regex: '"',
				next: 'qqstring'
			}, {
				token: 'string',
				regex: '`',
				next: 'js'
			}, {
				token: 'string',
				regex: '<\\[',
				next: 'words'
			}, {
				token: 'string.regex',
				regex: '//',
				next: 'heregex'
			}, {
				token: 'string.regex',
				regex: '\\/(?:[^[\\/\\n\\\\]*(?:(?:\\\\.|\\[[^\\]\\n\\\\]*(?:\\\\.[^\\]\\n\\\\]*)*\\])[^[\\/\\n\\\\]*)*)\\/[gimy$]{0,4}',
				next: 'key'
			}, {
				token: 'constant.numeric',
				regex: '(?:0x[\\da-fA-F][\\da-fA-F_]*|(?:[2-9]|[12]\\d|3[0-6])r[\\da-zA-Z][\\da-zA-Z_]*|(?:\\d[\\d_]*(?:\\.\\d[\\d_]*)?|\\.\\d[\\d_]*)(?:e[+-]?\\d[\\d_]*)?[\\w$]*)'
			}, {
				token: 'lparen',
				regex: '[({[]'
			}, {
				token: 'rparen',
				regex: '[)}\\]]',
				next: 'key'
			}, {
				token: 'keyword.operator',
				regex: '\\S+'
			}, {
				token: 'text',
				regex: '\\s+'
			}
		],
		heregex: [
			{
				token: 'string.regex',
				regex: '.*?//[gimy$?]{0,4}',
				next: 'start'
			}, {
				token: 'string.regex',
				regex: '\\s*#{'
			}, {
				token: 'comment.regex',
				regex: '\\s+(?:#.*)?'
			}, {
				token: 'string.regex',
				regex: '\\S+'
			}
		],
		key: [
			{
				token: 'keyword.operator',
				regex: '[.?@!]+'
			}, {
				token: 'identifier',
				regex: identifier,
				next: 'start'
			}, {
				token: 'text',
				regex: '',
				next: 'start'
			}
		],
		comment: [
			{
				token: 'comment.doc',
				regex: '.*?\\*/',
				next: 'start'
			}, {
				token: 'comment.doc',
				regex: '.+'
			}
		],
		qdoc: [
			{
				token: 'string',
				regex: ".*?'''",
				next: 'key'
			}, stringfill
		],
		qqdoc: [
			{
				token: 'string',
				regex: '.*?"""',
				next: 'key'
			}, stringfill
		],
		qstring: [
			{
				token: 'string',
				regex: '[^\\\\\']*(?:\\\\.[^\\\\\']*)*\'',
				next: 'key'
			}, stringfill
		],
		qqstring: [
			{
				token: 'string',
				regex: '[^\\\\"]*(?:\\\\.[^\\\\"]*)*"',
				next: 'key'
			}, stringfill
		],
		js: [
			{
				token: 'string',
				regex: '[^\\\\`]*(?:\\\\.[^\\\\`]*)*`',
				next: 'key'
			}, stringfill
		],
		words: [
			{
				token: 'string',
				regex: '.*?\\]>',
				next: 'key'
			}, stringfill
		]
	};
	for (var idx in Rules) {
		var r = Rules[idx];
		if (r.splice) {
			for (var i = 0, len = r.length; i < len; ++i) {
				var rr = r[i];
				if (typeof rr.regex === 'string') {
					Rules[idx][i].regex = new RegExp('^' + rr.regex);
				}
			}
		} else if (typeof rr.regex === 'string') {
			Rules[idx].regex = new RegExp('^' + r.regex);
		}
	}

	CodeMirror.defineMIME('text/x-livescript', 'livescript');

});