/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
'use strict';
export var conf = {
    comments: {
        lineComment: '//',
        blockComment: ['(*', '*)'],
    },
    brackets: [
        ['{', '}'],
        ['[', ']'],
        ['(', ')']
    ],
    autoClosingPairs: [
        { open: '{', close: '}' },
        { open: '[', close: ']' },
        { open: '(', close: ')' },
        { open: '"', close: '"' }
    ],
    surroundingPairs: [
        { open: '{', close: '}' },
        { open: '[', close: ']' },
        { open: '(', close: ')' },
        { open: '"', close: '"' },
        { open: '\'', close: '\'' }
    ],
    folding: {
        markers: {
            start: new RegExp("^\\s*//\\s*#region\\b|^\\s*\\(\\*\\s*#region(.*)\\*\\)"),
            end: new RegExp("^\\s*//\\s*#endregion\\b|^\\s*\\(\\*\\s*#endregion\\s*\\*\\)")
        }
    }
};
export var language = {
    defaultToken: '',
    tokenPostfix: '.fs',
    keywords: [
        'abstract', 'and', 'atomic', 'as',
        'assert', 'asr', 'base', 'begin',
        'break', 'checked', 'component',
        'const', 'constraint', 'constructor',
        'continue', 'class', 'default',
        'delegate', 'do', 'done', 'downcast',
        'downto', 'elif', 'else', 'end',
        'exception', 'eager', 'event', 'external',
        'extern', 'false', 'finally', 'for',
        'fun', 'function', 'fixed', 'functor',
        'global', 'if', 'in', 'include', 'inherit',
        'inline', 'interface', 'internal', 'land',
        'lor', 'lsl', 'lsr', 'lxor', 'lazy', 'let',
        'match', 'member', 'mod', 'module', 'mutable',
        'namespace', 'method', 'mixin', 'new', 'not',
        'null', 'of', 'open', 'or', 'object',
        'override', 'private', 'parallel', 'process',
        'protected', 'pure', 'public', 'rec', 'return',
        'static', 'sealed', 'struct', 'sig', 'then',
        'to', 'true', 'tailcall', 'trait',
        'try', 'type', 'upcast', 'use',
        'val', 'void', 'virtual', 'volatile',
        'when', 'while', 'with', 'yield'
    ],
    // we include these common regular expressions
    symbols: /[=><!~?:&|+\-*\^%;\.,\/]+/,
    escapes: /\\(?:[abfnrtv\\"']|x[0-9A-Fa-f]{1,4}|u[0-9A-Fa-f]{4}|U[0-9A-Fa-f]{8})/,
    integersuffix: /[uU]?[yslnLI]?/,
    floatsuffix: /[fFmM]?/,
    // The main tokenizer for our languages
    tokenizer: {
        root: [
            // identifiers and keywords
            [/[a-zA-Z_]\w*/, {
                    cases: {
                        '@keywords': { token: 'keyword.$0' },
                        '@default': 'identifier'
                    }
                }],
            // whitespace
            { include: '@whitespace' },
            // [< attributes >].
            [/\[<.*>\]/, 'annotation'],
            // Preprocessor directive
            [/^#(if|else|endif)/, 'keyword'],
            // delimiters and operators
            [/[{}()\[\]]/, '@brackets'],
            [/[<>](?!@symbols)/, '@brackets'],
            [/@symbols/, 'delimiter'],
            // numbers
            [/\d*\d+[eE]([\-+]?\d+)?(@floatsuffix)/, 'number.float'],
            [/\d*\.\d+([eE][\-+]?\d+)?(@floatsuffix)/, 'number.float'],
            [/0x[0-9a-fA-F]+LF/, 'number.float'],
            [/0x[0-9a-fA-F]+(@integersuffix)/, 'number.hex'],
            [/0b[0-1]+(@integersuffix)/, 'number.bin'],
            [/\d+(@integersuffix)/, 'number'],
            // delimiter: after number because of .\d floats
            [/[;,.]/, 'delimiter'],
            // strings
            [/"([^"\\]|\\.)*$/, 'string.invalid'],
            [/"""/, 'string', '@string."""'],
            [/"/, 'string', '@string."'],
            // literal string
            [/\@"/, { token: 'string.quote', next: '@litstring' }],
            // characters
            [/'[^\\']'B?/, 'string'],
            [/(')(@escapes)(')/, ['string', 'string.escape', 'string']],
            [/'/, 'string.invalid']
        ],
        whitespace: [
            [/[ \t\r\n]+/, ''],
            [/\(\*(?!\))/, 'comment', '@comment'],
            [/\/\/.*$/, 'comment'],
        ],
        comment: [
            [/[^*(]+/, 'comment'],
            [/\*\)/, 'comment', '@pop'],
            [/\*/, 'comment'],
            [/\(\*\)/, 'comment'],
            [/\(/, 'comment']
        ],
        string: [
            [/[^\\"]+/, 'string'],
            [/@escapes/, 'string.escape'],
            [/\\./, 'string.escape.invalid'],
            [/("""|"B?)/, {
                    cases: {
                        '$#==$S2': { token: 'string', next: '@pop' },
                        '@default': 'string'
                    }
                }]
        ],
        litstring: [
            [/[^"]+/, 'string'],
            [/""/, 'string.escape'],
            [/"/, { token: 'string.quote', next: '@pop' }]
        ],
    },
};