/*---------------------------------------------------------------------------------------------
 *  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 = {
    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.*\\*\\/")
        }
    }
};
export var 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']
        ]
    }
};