java.ts

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

import type { languages } from '../fillers/monaco-editor-core';

export const conf: languages.LanguageConfiguration = {
	// the default separators except `@$`
	wordPattern: /(-?\d*\.\d\w*)|([^\`\~\!\#\%\^\&\*\(\)\-\=\+\[\{\]\}\\\|\;\:\'\"\,\.\<\>\/\?\s]+)/g,
	comments: {
		lineComment: '//',
		blockComment: ['/*', '*/']
	},
	brackets: [
		['{', '}'],
		['[', ']'],
		['(', ')']
	],
	autoClosingPairs: [
		{ open: '{', close: '}' },
		{ open: '[', close: ']' },
		{ open: '(', close: ')' },
		{ open: '"', close: '"' },
		{ open: "'", close: "'" }
	],
	surroundingPairs: [
		{ open: '{', close: '}' },
		{ open: '[', close: ']' },
		{ open: '(', close: ')' },
		{ open: '"', close: '"' },
		{ open: "'", close: "'" },
		{ open: '<', close: '>' }
	],
	folding: {
		markers: {
			start: new RegExp('^\\s*//\\s*(?:(?:#?region\\b)|(?:<editor-fold\\b))'),
			end: new RegExp('^\\s*//\\s*(?:(?:#?endregion\\b)|(?:</editor-fold>))')
		}
	}
};

export const language = <languages.IMonarchLanguage>{
	defaultToken: '',
	tokenPostfix: '.java',

	keywords: [
		'abstract',
		'continue',
		'for',
		'new',
		'switch',
		'assert',
		'default',
		'goto',
		'package',
		'synchronized',
		'boolean',
		'do',
		'if',
		'private',
		'this',
		'break',
		'double',
		'implements',
		'protected',
		'throw',
		'byte',
		'else',
		'import',
		'public',
		'throws',
		'case',
		'enum',
		'instanceof',
		'return',
		'transient',
		'catch',
		'extends',
		'int',
		'short',
		'try',
		'char',
		'final',
		'interface',
		'static',
		'void',
		'class',
		'finally',
		'long',
		'strictfp',
		'volatile',
		'const',
		'float',
		'native',
		'super',
		'while',
		'true',
		'false'
	],

	operators: [
		'=',
		'>',
		'<',
		'!',
		'~',
		'?',
		':',
		'==',
		'<=',
		'>=',
		'!=',
		'&&',
		'||',
		'++',
		'--',
		'+',
		'-',
		'*',
		'/',
		'&',
		'|',
		'^',
		'%',
		'<<',
		'>>',
		'>>>',
		'+=',
		'-=',
		'*=',
		'/=',
		'&=',
		'|=',
		'^=',
		'%=',
		'<<=',
		'>>=',
		'>>>='
	],

	// 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})/,
	digits: /\d+(_+\d+)*/,
	octaldigits: /[0-7]+(_+[0-7]+)*/,
	binarydigits: /[0-1]+(_+[0-1]+)*/,
	hexdigits: /[[0-9a-fA-F]+(_+[0-9a-fA-F]+)*/,

	// 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' },

			// delimiters and operators
			[/[{}()\[\]]/, '@brackets'],
			[/[<>](?!@symbols)/, '@brackets'],
			[
				/@symbols/,
				{
					cases: {
						'@operators': 'delimiter',
						'@default': ''
					}
				}
			],

			// @ annotations.
			[/@\s*[a-zA-Z_\$][\w\$]*/, 'annotation'],

			// numbers
			[/(@digits)[eE]([\-+]?(@digits))?[fFdD]?/, 'number.float'],
			[/(@digits)\.(@digits)([eE][\-+]?(@digits))?[fFdD]?/, 'number.float'],
			[/0[xX](@hexdigits)[Ll]?/, 'number.hex'],
			[/0(@octaldigits)[Ll]?/, 'number.octal'],
			[/0[bB](@binarydigits)[Ll]?/, 'number.binary'],
			[/(@digits)[fFdD]/, 'number.float'],
			[/(@digits)[lL]?/, 'number'],

			// delimiter: after number because of .\d floats
			[/[;,.]/, 'delimiter'],

			// strings
			[/"([^"\\]|\\.)*$/, 'string.invalid'], // non-teminated string
			[/"/, 'string', '@string'],

			// characters
			[/'[^\\']'/, 'string'],
			[/(')(@escapes)(')/, ['string', 'string.escape', 'string']],
			[/'/, 'string.invalid']
		],

		whitespace: [
			[/[ \t\r\n]+/, ''],
			[/\/\*\*(?!\/)/, 'comment.doc', '@javadoc'],
			[/\/\*/, 'comment', '@comment'],
			[/\/\/.*$/, 'comment']
		],

		comment: [
			[/[^\/*]+/, 'comment'],
			// [/\/\*/, 'comment', '@push' ],    // nested comment not allowed :-(
			// [/\/\*/,    'comment.invalid' ],    // this breaks block comments in the shape of /* //*/
			[/\*\//, 'comment', '@pop'],
			[/[\/*]/, 'comment']
		],
		//Identical copy of comment above, except for the addition of .doc
		javadoc: [
			[/[^\/*]+/, 'comment.doc'],
			// [/\/\*/, 'comment.doc', '@push' ],    // nested comment not allowed :-(
			[/\/\*/, 'comment.doc.invalid'],
			[/\*\//, 'comment.doc', '@pop'],
			[/[\/*]/, 'comment.doc']
		],

		string: [
			[/[^\\"]+/, 'string'],
			[/@escapes/, 'string.escape'],
			[/\\./, 'string.escape.invalid'],
			[/"/, 'string', '@pop']
		]
	}
};