/*---------------------------------------------------------------------------------------------
 *  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 = {
        wordPattern: /(#?-?\d*\.\d\w*%?)|([@$#!.:]?[\w-?]+%?)|[@#!.]/g,
        comments: {
            blockComment: ['/*', '*/'],
            lineComment: '//'
        },
        brackets: [
            ['{', '}'],
            ['[', ']'],
            ['(', ')']
        ],
        autoClosingPairs: [
            { open: '{', close: '}', notIn: ['string', 'comment'] },
            { open: '[', close: ']', notIn: ['string', 'comment'] },
            { open: '(', close: ')', notIn: ['string', 'comment'] },
            { open: '"', close: '"', notIn: ['string', 'comment'] },
            { open: '\'', close: '\'', notIn: ['string', 'comment'] },
        ],
        surroundingPairs: [
            { open: '{', close: '}' },
            { open: '[', close: ']' },
            { open: '(', close: ')' },
            { open: '"', close: '"' },
            { open: '\'', close: '\'' },
        ],
        folding: {
            markers: {
                start: new RegExp("^\\s*\\/\\*\\s*#region\\b\\s*(.*?)\\s*\\*\\/"),
                end: new RegExp("^\\s*\\/\\*\\s*#endregion\\b.*\\*\\/")
            }
        }
    };
    exports.language = {
        defaultToken: '',
        tokenPostfix: '.scss',
        ws: '[ \t\n\r\f]*',
        identifier: '-?-?([a-zA-Z]|(\\\\(([0-9a-fA-F]{1,6}\\s?)|[^[0-9a-fA-F])))([\\w\\-]|(\\\\(([0-9a-fA-F]{1,6}\\s?)|[^[0-9a-fA-F])))*',
        brackets: [
            { open: '{', close: '}', token: 'delimiter.curly' },
            { open: '[', close: ']', token: 'delimiter.bracket' },
            { open: '(', close: ')', token: 'delimiter.parenthesis' },
            { open: '<', close: '>', token: 'delimiter.angle' }
        ],
        tokenizer: {
            root: [
                { include: '@selector' },
            ],
            selector: [
                { include: '@comments' },
                { include: '@import' },
                { include: '@variabledeclaration' },
                { include: '@warndebug' },
                ['[@](include)', { token: 'keyword', next: '@includedeclaration' }],
                ['[@](keyframes|-webkit-keyframes|-moz-keyframes|-o-keyframes)', { token: 'keyword', next: '@keyframedeclaration' }],
                ['[@](page|content|font-face|-moz-document)', { token: 'keyword' }],
                ['[@](charset|namespace)', { token: 'keyword', next: '@declarationbody' }],
                ['[@](function)', { token: 'keyword', next: '@functiondeclaration' }],
                ['[@](mixin)', { token: 'keyword', next: '@mixindeclaration' }],
                ['url(\\-prefix)?\\(', { token: 'meta', next: '@urldeclaration' }],
                { include: '@controlstatement' },
                { include: '@selectorname' },
                ['[&\\*]', 'tag'],
                ['[>\\+,]', 'delimiter'],
                ['\\[', { token: 'delimiter.bracket', next: '@selectorattribute' }],
                ['{', { token: 'delimiter.curly', next: '@selectorbody' }],
            ],
            selectorbody: [
                ['[*_]?@identifier@ws:(?=(\\s|\\d|[^{;}]*[;}]))', 'attribute.name', '@rulevalue'],
                { include: '@selector' },
                ['[@](extend)', { token: 'keyword', next: '@extendbody' }],
                ['[@](return)', { token: 'keyword', next: '@declarationbody' }],
                ['}', { token: 'delimiter.curly', next: '@pop' }],
            ],
            selectorname: [
                ['#{', { token: 'meta', next: '@variableinterpolation' }],
                ['(\\.|#(?=[^{])|%|(@identifier)|:)+', 'tag'],
            ],
            selectorattribute: [
                { include: '@term' },
                [']', { token: 'delimiter.bracket', next: '@pop' }],
            ],
            term: [
                { include: '@comments' },
                ['url(\\-prefix)?\\(', { token: 'meta', next: '@urldeclaration' }],
                { include: '@functioninvocation' },
                { include: '@numbers' },
                { include: '@strings' },
                { include: '@variablereference' },
                ['(and\\b|or\\b|not\\b)', 'operator'],
                { include: '@name' },
                ['([<>=\\+\\-\\*\\/\\^\\|\\~,])', 'operator'],
                [',', 'delimiter'],
                ['!default', 'literal'],
                ['\\(', { token: 'delimiter.parenthesis', next: '@parenthizedterm' }],
            ],
            rulevalue: [
                { include: '@term' },
                ['!important', 'literal'],
                [';', 'delimiter', '@pop'],
                ['{', { token: 'delimiter.curly', switchTo: '@nestedproperty' }],
                ['(?=})', { token: '', next: '@pop' }],
            ],
            nestedproperty: [
                ['[*_]?@identifier@ws:', 'attribute.name', '@rulevalue'],
                { include: '@comments' },
                ['}', { token: 'delimiter.curly', next: '@pop' }],
            ],
            warndebug: [
                ['[@](warn|debug)', { token: 'keyword', next: '@declarationbody' }],
            ],
            import: [
                ['[@](import)', { token: 'keyword', next: '@declarationbody' }],
            ],
            variabledeclaration: [
                ['\\$@identifier@ws:', 'variable.decl', '@declarationbody'],
            ],
            urldeclaration: [
                { include: '@strings' },
                ['[^)\r\n]+', 'string'],
                ['\\)', { token: 'meta', next: '@pop' }],
            ],
            parenthizedterm: [
                { include: '@term' },
                ['\\)', { token: 'delimiter.parenthesis', next: '@pop' }],
            ],
            declarationbody: [
                { include: '@term' },
                [';', 'delimiter', '@pop'],
                ['(?=})', { token: '', next: '@pop' }],
            ],
            extendbody: [
                { include: '@selectorname' },
                ['!optional', 'literal'],
                [';', 'delimiter', '@pop'],
                ['(?=})', { token: '', next: '@pop' }],
            ],
            variablereference: [
                ['\\$@identifier', 'variable.ref'],
                ['\\.\\.\\.', 'operator'],
                ['#{', { token: 'meta', next: '@variableinterpolation' }],
            ],
            variableinterpolation: [
                { include: '@variablereference' },
                ['}', { token: 'meta', next: '@pop' }],
            ],
            comments: [
                ['\\/\\*', 'comment', '@comment'],
                ['\\/\\/+.*', 'comment'],
            ],
            comment: [
                ['\\*\\/', 'comment', '@pop'],
                ['.', 'comment'],
            ],
            name: [
                ['@identifier', 'attribute.value'],
            ],
            numbers: [
                ['(\\d*\\.)?\\d+([eE][\\-+]?\\d+)?', { token: 'number', next: '@units' }],
                ['#[0-9a-fA-F_]+(?!\\w)', 'number.hex'],
            ],
            units: [
                ['(em|ex|ch|rem|vmin|vmax|vw|vh|vm|cm|mm|in|px|pt|pc|deg|grad|rad|turn|s|ms|Hz|kHz|%)?', 'number', '@pop']
            ],
            functiondeclaration: [
                ['@identifier@ws\\(', { token: 'meta', next: '@parameterdeclaration' }],
                ['{', { token: 'delimiter.curly', switchTo: '@functionbody' }],
            ],
            mixindeclaration: [
                // mixin with parameters
                ['@identifier@ws\\(', { token: 'meta', next: '@parameterdeclaration' }],
                // mixin without parameters
                ['@identifier', 'meta'],
                ['{', { token: 'delimiter.curly', switchTo: '@selectorbody' }],
            ],
            parameterdeclaration: [
                ['\\$@identifier@ws:', 'variable.decl'],
                ['\\.\\.\\.', 'operator'],
                [',', 'delimiter'],
                { include: '@term' },
                ['\\)', { token: 'meta', next: '@pop' }],
            ],
            includedeclaration: [
                { include: '@functioninvocation' },
                ['@identifier', 'meta'],
                [';', 'delimiter', '@pop'],
                ['(?=})', { token: '', next: '@pop' }],
                ['{', { token: 'delimiter.curly', switchTo: '@selectorbody' }],
            ],
            keyframedeclaration: [
                ['@identifier', 'meta'],
                ['{', { token: 'delimiter.curly', switchTo: '@keyframebody' }],
            ],
            keyframebody: [
                { include: '@term' },
                ['{', { token: 'delimiter.curly', next: '@selectorbody' }],
                ['}', { token: 'delimiter.curly', next: '@pop' }],
            ],
            controlstatement: [
                ['[@](if|else|for|while|each|media)', { token: 'keyword.flow', next: '@controlstatementdeclaration' }],
            ],
            controlstatementdeclaration: [
                ['(in|from|through|if|to)\\b', { token: 'keyword.flow' }],
                { include: '@term' },
                ['{', { token: 'delimiter.curly', switchTo: '@selectorbody' }],
            ],
            functionbody: [
                ['[@](return)', { token: 'keyword' }],
                { include: '@variabledeclaration' },
                { include: '@term' },
                { include: '@controlstatement' },
                [';', 'delimiter'],
                ['}', { token: 'delimiter.curly', next: '@pop' }],
            ],
            functioninvocation: [
                ['@identifier\\(', { token: 'meta', next: '@functionarguments' }],
            ],
            functionarguments: [
                ['\\$@identifier@ws:', 'attribute.name'],
                ['[,]', 'delimiter'],
                { include: '@term' },
                ['\\)', { token: 'meta', next: '@pop' }],
            ],
            strings: [
                ['~?"', { token: 'string.delimiter', next: '@stringenddoublequote' }],
                ['~?\'', { token: 'string.delimiter', next: '@stringendquote' }]
            ],
            stringenddoublequote: [
                ['\\\\.', 'string'],
                ['"', { token: 'string.delimiter', next: '@pop' }],
                ['.', 'string']
            ],
            stringendquote: [
                ['\\\\.', 'string'],
                ['\'', { token: 'string.delimiter', next: '@pop' }],
                ['.', 'string']
            ]
        }
    };
});
