[Feat] MIPS: Support for Syntax Highligh and Basic Colorization

Defined rules for statements and declaration. Provided with set of keywords and variable declaration technique.

Signed-off-by: Progyan Bhattacharya <bprogyan@gmail.com>

src/mips/mips.contribution.ts

@@ -0,0 +1,15 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+import { registerLanguage } from '../_.contribution';
+
+registerLanguage({
+	id: 'mips',
+	extensions: ['.s'],
+	aliases: ['MIPS', 'MIPS-V'],
+	mimetypes: ['text/x-mips', 'text/mips', 'text/plaintext'],
+	loader: () => import('./mips')
+});

src/mips/mips.test.ts

@@ -0,0 +1,213 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+'use strict';
+
+import { testTokenization } from '../test/testRunner';
+
+testTokenization('mips', [
+	// Comments
+	[{
+		line: '#',
+		tokens: [
+			{ startIndex: 0, type: 'comment.mips' }
+		]
+	}],
+
+	[{
+		line: '    # a comment',
+		tokens: [
+			{ startIndex: 0, type: '' },
+			{ startIndex: 4, type: 'comment.mips' }
+		]
+	}],
+
+	[{
+		line: '# a comment',
+		tokens: [
+			{ startIndex: 0, type: 'comment.mips' }
+		]
+	}],
+
+	[{
+		line: '#sticky comment',
+		tokens: [
+			{ startIndex: 0, type: 'comment.mips' }
+		]
+	}],
+
+	[{
+		line: '$x, 1 # my comment # is a nice one',
+		tokens: [
+			{ startIndex: 0, type: 'variable.predefined.mips' },
+			{ startIndex: 2, type: 'delimiter.mips' },
+			{ startIndex: 3, type: '' },
+			{ startIndex: 4, type: 'number.mips' },
+			{ startIndex: 5, type: '' },
+			{ startIndex: 6, type: 'comment.mips' }
+		]
+	}],
+
+	[{
+		line: '$x, 1e #is a exponent number',
+		tokens: [
+			{ startIndex: 0, type: 'variable.predefined.mips' },
+			{ startIndex: 2, type: 'delimiter.mips' },
+			{ startIndex: 3, type: '' },
+			{ startIndex: 4, type: 'number.float.mips' },
+			{ startIndex: 6, type: '' },
+			{ startIndex: 7, type: 'comment.mips' }
+		]
+	}],
+
+	[{
+		line: '$x, 0x1F #is a hex number',
+		tokens: [
+			{ startIndex: 0, type: 'variable.predefined.mips' },
+			{ startIndex: 2, type: 'delimiter.mips' },
+			{ startIndex: 3, type: '' },
+			{ startIndex: 4, type: 'number.hex.mips' },
+			{ startIndex: 8, type: '' },
+			{ startIndex: 9, type: 'comment.mips' }
+		]
+	}],
+
+	// Keywords
+	[{
+		line: 'li $r0, 5',
+		tokens: [
+			{ startIndex: 0, type: 'keyword.li.mips' },
+			{ startIndex: 2, type: '' },
+			{ startIndex: 3, type: 'variable.predefined.mips' },
+			{ startIndex: 6, type: 'delimiter.mips' },
+			{ startIndex: 7, type: '' },
+			{ startIndex: 8, type: 'number.mips' },
+		]
+	}],
+
+	[{
+		line: '.data # Data declaration',
+		tokens: [
+			{ startIndex: 0, type: 'keyword.\.data.mips' },
+			{ startIndex: 5, type: '' },
+			{ startIndex: 6, type: 'comment.mips' },
+		]
+	}],
+
+	[{
+		line: 'even_str: .asciiz "The number is even!" # Output string for even integer',
+		tokens: [
+			{ startIndex: 0, type: '' },
+			{ startIndex: 8, type: 'delimiter.mips' },
+			{ startIndex: 9, type: '' },
+			{ startIndex: 18, type: 'string.mips' },
+			{ startIndex: 39, type: '' },
+			{ startIndex: 40, type: 'comment.mips' },
+		]
+	}],
+
+	[{
+		line: '    add    ',
+		tokens: [
+			{ startIndex: 0, type: '' },
+			{ startIndex: 4, type: 'keyword.add.mips' },
+			{ startIndex: 7, type: '' }
+		]
+	}],
+
+	// Comments - range comment, single line
+	[{
+		line: '### a simple comment ###',
+		tokens: [
+			{ startIndex: 0, type: 'comment.mips' }
+		]
+	}],
+
+	[{
+		line: 'move $x, ### a simple comment ### 1',
+		tokens: [
+			{ startIndex: 0, type: 'keyword.move.mips' },
+			{ startIndex: 4, type: '' },
+			{ startIndex: 5, type: 'variable.predefined.mips' },
+			{ startIndex: 7, type: 'delimiter.mips' },
+			{ startIndex: 8, type: '' },
+			{ startIndex: 9, type: 'comment.mips' },
+		]
+	}],
+
+	[{
+		line: '$x ###/',
+		tokens: [
+			{ startIndex: 0, type: 'variable.predefined.mips' },
+			{ startIndex: 2, type: '' },
+			{ startIndex: 3, type: 'comment.mips' }
+		]
+	}],
+
+	// Numbers
+	[{
+		line: '0',
+		tokens: [
+			{ startIndex: 0, type: 'number.mips' }
+		]
+	}],
+
+	[{
+		line: ' 0',
+		tokens: [
+			{ startIndex: 0, type: '' },
+			{ startIndex: 1, type: 'number.mips' }
+		]
+	}],
+
+	[{
+		line: ' 0 ',
+		tokens: [
+			{ startIndex: 0, type: '' },
+			{ startIndex: 1, type: 'number.mips' },
+			{ startIndex: 2, type: '' }
+		]
+	}],
+
+	[{
+		line: '0 ',
+		tokens: [
+			{ startIndex: 0, type: 'number.mips' },
+			{ startIndex: 1, type: '' }
+		]
+	}],
+
+	[{
+		line: '0123',
+		tokens: [
+			{ startIndex: 0, type: 'number.octal.mips' }
+		]
+	}],
+
+	[{
+		line: '01239',
+		tokens: [
+			{ startIndex: 0, type: 'number.mips' }
+		]
+	}],
+
+	[{
+		line: '0x123',
+		tokens: [
+			{ startIndex: 0, type: 'number.hex.mips' }
+		]
+	}],
+
+	[{
+		line: '1,2,3',
+		tokens: [
+			{ startIndex: 0, type: 'number.mips' },
+			{ startIndex: 1, type: 'delimiter.mips' },
+			{ startIndex: 2, type: 'number.mips' },
+			{ startIndex: 3, type: 'delimiter.mips' },
+			{ startIndex: 4, type: 'number.mips' },
+		]
+	}]
+]);

src/mips/mips.ts

@@ -0,0 +1,157 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+'use strict';
+
+import IRichLanguageConfiguration = monaco.languages.LanguageConfiguration;
+import ILanguage = monaco.languages.IMonarchLanguage;
+
+export const conf: IRichLanguageConfiguration = {
+	wordPattern: /(-?\d*\.\d\w*)|([^\`\~\!\@\#%\^\&\*\(\)\=\$\-\+\[\{\]\}\\\|\;\:\'\"\,\.\<\>\/\?\s]+)/g,
+	comments: {
+		blockComment: ['###', '###'],
+		lineComment: '#'
+	},
+	folding: {
+		markers: {
+			start: new RegExp("^\\s*#region\\b"),
+			end: new RegExp("^\\s*#endregion\\b")
+		}
+	}
+};
+
+export const language = <ILanguage>{
+	defaultToken: '',
+	ignoreCase: false,
+	tokenPostfix: '.mips',
+
+	regEx: /\/(?!\/\/)(?:[^\/\\]|\\.)*\/[igm]*/,
+
+	keywords: [
+		'.data', '.text', 'syscall', 'trap',
+		'add', 'addu', 'addi', 'addiu', 'and', 'andi',
+		'div', 'divu', 'mult', 'multu', 'nor', 'or', 'ori',
+		'sll', 'slv', 'sra', 'srav', 'srl', 'srlv',
+		'sub', 'subu', 'xor', 'xori', 'lhi', 'lho',
+		'lhi', 'llo', 'slt', 'slti', 'sltu', 'sltiu',
+		'beq', 'bgtz', 'blez', 'bne', 'j', 'jal', 'jalr', 'jr',
+		'lb', 'lbu', 'lh', 'lhu', 'lw', 'li', 'la',
+		'sb', 'sh', 'sw', 'mfhi', 'mflo', 'mthi', 'mtlo', 'move',
+	],
+
+	// 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})/,
+
+	// The main tokenizer for our languages
+	tokenizer: {
+		root: [
+
+			// identifiers and keywords
+			[/\$[a-zA-Z_]\w*/, 'variable.predefined'],
+			[/[.a-zA-Z_]\w*/, {
+				cases: {
+					'this': 'variable.predefined',
+					'@keywords': { token: 'keyword.$0' },
+					'@default': ''
+				}
+			}],
+
+			// whitespace
+			[/[ \t\r\n]+/, ''],
+
+			// Comments
+			[/#.*$/, 'comment'],
+
+			// regular expressions
+			['///', { token: 'regexp', next: '@hereregexp' }],
+
+			[/^(\s*)(@regEx)/, ['', 'regexp']],
+			[/(\,)(\s*)(@regEx)/, ['delimiter', '', 'regexp']],
+			[/(\:)(\s*)(@regEx)/, ['delimiter', '', 'regexp']],
+
+
+			// delimiters
+			[/@symbols/, 'delimiter'],
+
+			// numbers
+			[/\d+[eE]([\-+]?\d+)?/, 'number.float'],
+			[/\d+\.\d+([eE][\-+]?\d+)?/, 'number.float'],
+			[/0[xX][0-9a-fA-F]+/, 'number.hex'],
+			[/0[0-7]+(?!\d)/, 'number.octal'],
+			[/\d+/, 'number'],
+
+			// delimiter: after number because of .\d floats
+			[/[,.]/, 'delimiter'],
+
+			// strings:
+			[/"""/, 'string', '@herestring."""'],
+			[/'''/, 'string', '@herestring.\'\'\''],
+			[/"/, {
+				cases: {
+					'@eos': 'string',
+					'@default': { token: 'string', next: '@string."' }
+				}
+			}],
+			[/'/, {
+				cases: {
+					'@eos': 'string',
+					'@default': { token: 'string', next: '@string.\'' }
+				}
+			}],
+		],
+
+		string: [
+			[/[^"'\#\\]+/, 'string'],
+			[/@escapes/, 'string.escape'],
+			[/\./, 'string.escape.invalid'],
+			[/\./, 'string.escape.invalid'],
+
+			[/#{/, {
+				cases: {
+					'$S2=="': { token: 'string', next: 'root.interpolatedstring' },
+					'@default': 'string'
+				}
+			}],
+
+			[/["']/, {
+				cases: {
+					'$#==$S2': { token: 'string', next: '@pop' },
+					'@default': 'string'
+				}
+			}],
+			[/#/, 'string']
+		],
+
+		herestring: [
+			[/("""|''')/, {
+				cases: {
+					'$1==$S2': { token: 'string', next: '@pop' },
+					'@default': 'string'
+				}
+			}],
+			[/[^#\\'"]+/, 'string'],
+			[/['"]+/, 'string'],
+			[/@escapes/, 'string.escape'],
+			[/\./, 'string.escape.invalid'],
+
+			[/#{/, { token: 'string.quote', next: 'root.interpolatedstring' }],
+			[/#/, 'string']
+		],
+
+		comment: [
+			[/[^#]+/, 'comment',],
+			[/#/, 'comment'],
+		],
+
+		hereregexp: [
+			[/[^\\\/#]+/, 'regexp'],
+			[/\\./, 'regexp'],
+			[/#.*$/, 'comment'],
+			['///[igm]*', { token: 'regexp', next: '@pop' }],
+			[/\//, 'regexp'],
+		],
+	},
+};

src/monaco.contribution.ts

@@ -22,6 +22,7 @@ import './kotlin/kotlin.contribution';
 import './less/less.contribution';
 import './lua/lua.contribution';
 import './markdown/markdown.contribution';
+import './mips/mips.contribution';
 import './msdax/msdax.contribution';
 import './mysql/mysql.contribution';
 import './objective-c/objective-c.contribution';

test/setup.js

@@ -46,6 +46,7 @@ define(['require'], function () {
 			'release/dev/less/less.test',
 			'release/dev/lua/lua.test',
 			'release/dev/markdown/markdown.test',
+			'release/dev/mips/mips.test',
 			'release/dev/msdax/msdax.test',
 			'release/dev/mysql/mysql.test',
 			'release/dev/objective-c/objective-c.test',