/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
define(["require", "exports"], function (require, exports) {
    'use strict';
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.conf = {
        comments: {
            blockComment: ['<!--', '-->',]
        },
        brackets: [
            ['{', '}'],
            ['[', ']'],
            ['(', ')']
        ],
        autoClosingPairs: [
            { open: '{', close: '}' },
            { open: '[', close: ']' },
            { open: '(', close: ')' },
            { open: '<', close: '>', notIn: ['string'] }
        ],
        surroundingPairs: [
            { open: '(', close: ')' },
            { open: '[', close: ']' },
            { open: '`', close: '`' },
        ],
        folding: {
            markers: {
                start: new RegExp("^\\s*<!--\\s*#?region\\b.*-->"),
                end: new RegExp("^\\s*<!--\\s*#?endregion\\b.*-->")
            }
        }
    };
    exports.language = {
        defaultToken: '',
        tokenPostfix: '.md',
        // escape codes
        control: /[\\`*_\[\]{}()#+\-\.!]/,
        noncontrol: /[^\\`*_\[\]{}()#+\-\.!]/,
        escapes: /\\(?:@control)/,
        // escape codes for javascript/CSS strings
        jsescapes: /\\(?:[btnfr\\"']|[0-7][0-7]?|[0-3][0-7]{2})/,
        // non matched elements
        empty: [
            'area', 'base', 'basefont', 'br', 'col', 'frame',
            'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param'
        ],
        tokenizer: {
            root: [
                // headers (with #)
                [/^(\s{0,3})(#+)((?:[^\\#]|@escapes)+)((?:#+)?)/, ['white', 'keyword', 'keyword', 'keyword']],
                // headers (with =)
                [/^\s*(=+|\-+)\s*$/, 'keyword'],
                // headers (with ***)
                [/^\s*((\*[ ]?)+)\s*$/, 'meta.separator'],
                // quote
                [/^\s*>+/, 'comment'],
                // list (starting with * or number)
                [/^\s*([\*\-+:]|\d+\.)\s/, 'keyword'],
                // code block (4 spaces indent)
                [/^(\t|[ ]{4})[^ ].*$/, 'string'],
                // code block (3 tilde)
                [/^\s*~~~\s*((?:\w|[\/\-#])+)?\s*$/, { token: 'string', next: '@codeblock' }],
                // github style code blocks (with backticks and language)
                [/^\s*```\s*((?:\w|[\/\-#])+).*$/, { token: 'string', next: '@codeblockgh', nextEmbedded: '$1' }],
                // github style code blocks (with backticks but no language)
                [/^\s*```\s*$/, { token: 'string', next: '@codeblock' }],
                // markup within lines
                { include: '@linecontent' },
            ],
            codeblock: [
                [/^\s*~~~\s*$/, { token: 'string', next: '@pop' }],
                [/^\s*```\s*$/, { token: 'string', next: '@pop' }],
                [/.*$/, 'variable.source'],
            ],
            // github style code blocks
            codeblockgh: [
                [/```\s*$/, { token: 'variable.source', next: '@pop', nextEmbedded: '@pop' }],
                [/[^`]+/, 'variable.source'],
            ],
            linecontent: [
                // escapes
                [/&\w+;/, 'string.escape'],
                [/@escapes/, 'escape'],
                // various markup
                [/\b__([^\\_]|@escapes|_(?!_))+__\b/, 'strong'],
                [/\*\*([^\\*]|@escapes|\*(?!\*))+\*\*/, 'strong'],
                [/\b_[^_]+_\b/, 'emphasis'],
                [/\*([^\\*]|@escapes)+\*/, 'emphasis'],
                [/`([^\\`]|@escapes)+`/, 'variable'],
                // links
                [/\{+[^}]+\}+/, 'string.target'],
                [/(!?\[)((?:[^\]\\]|@escapes)*)(\]\([^\)]+\))/, ['string.link', '', 'string.link']],
                [/(!?\[)((?:[^\]\\]|@escapes)*)(\])/, 'string.link'],
                // or html
                { include: 'html' },
            ],
            // Note: it is tempting to rather switch to the real HTML mode instead of building our own here
            // but currently there is a limitation in Monarch that prevents us from doing it: The opening
            // '<' would start the HTML mode, however there is no way to jump 1 character back to let the
            // HTML mode also tokenize the opening angle bracket. Thus, even though we could jump to HTML,
            // we cannot correctly tokenize it in that mode yet.
            html: [
                // html tags
                [/<(\w+)\/>/, 'tag'],
                [/<(\w+)/, {
                        cases: {
                            '@empty': { token: 'tag', next: '@tag.$1' },
                            '@default': { token: 'tag', next: '@tag.$1' }
                        }
                    }],
                [/<\/(\w+)\s*>/, { token: 'tag' }],
                [/<!--/, 'comment', '@comment']
            ],
            comment: [
                [/[^<\-]+/, 'comment.content'],
                [/-->/, 'comment', '@pop'],
                [/<!--/, 'comment.content.invalid'],
                [/[<\-]/, 'comment.content']
            ],
            // Almost full HTML tag matching, complete with embedded scripts & styles
            tag: [
                [/[ \t\r\n]+/, 'white'],
                [/(type)(\s*=\s*)(")([^"]+)(")/, ['attribute.name.html', 'delimiter.html', 'string.html',
                        { token: 'string.html', switchTo: '@tag.$S2.$4' },
                        'string.html']],
                [/(type)(\s*=\s*)(')([^']+)(')/, ['attribute.name.html', 'delimiter.html', 'string.html',
                        { token: 'string.html', switchTo: '@tag.$S2.$4' },
                        'string.html']],
                [/(\w+)(\s*=\s*)("[^"]*"|'[^']*')/, ['attribute.name.html', 'delimiter.html', 'string.html']],
                [/\w+/, 'attribute.name.html'],
                [/\/>/, 'tag', '@pop'],
                [/>/, {
                        cases: {
                            '$S2==style': { token: 'tag', switchTo: 'embeddedStyle', nextEmbedded: 'text/css' },
                            '$S2==script': {
                                cases: {
                                    '$S3': { token: 'tag', switchTo: 'embeddedScript', nextEmbedded: '$S3' },
                                    '@default': { token: 'tag', switchTo: 'embeddedScript', nextEmbedded: 'text/javascript' }
                                }
                            },
                            '@default': { token: 'tag', next: '@pop' }
                        }
                    }],
            ],
            embeddedStyle: [
                [/[^<]+/, ''],
                [/<\/style\s*>/, { token: '@rematch', next: '@pop', nextEmbedded: '@pop' }],
                [/</, '']
            ],
            embeddedScript: [
                [/[^<]+/, ''],
                [/<\/script\s*>/, { token: '@rematch', next: '@pop', nextEmbedded: '@pop' }],
                [/</, '']
            ],
        }
    };
});