// 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)
    // Plain browser env
    else 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: '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')
})