Add Nias tilde keyboard

rules/nia/nia-tilde.js

@@ -0,0 +1,22 @@
+( function ( $ ) {
+	'use strict';
+
+	var niaTilde = {
+		id: 'nia-tilde',
+		name: 'nia-tilde',
+		description: 'Nias tilde keyboard',
+		date: '2021-01-13',
+		URL: 'https://github.com/wikimedia/jquery.ime',
+		author: 'Amir E. Aharoni',
+		license: 'GPLv3',
+		version: '1',
+		patterns: [
+			[ '~O', 'Ö' ],
+			[ '~o', 'ö' ],
+			[ '~W', 'Ŵ' ],
+			[ '~w', 'ŵ' ]
+		]
+	};
+
+	$.ime.register( niaTilde );
+}( jQuery ) );

src/jquery.ime.inputmethods.js

@@ -578,6 +578,10 @@
 			name: 'ट्रांस्लितेरेशन',
 			source: 'rules/ne/ne-transliteration.js'
 		},
+		'nia-tilde': {
+			name: 'Li Niha tilde',
+			source: 'rules/nia/nia-tilde.js'
+		},
 		'nqo-standard-qwerty': {
 			name: "N'Ko standard QWERTY",
 			source: 'rules/nqo/nqo-standard-qwerty.js'
@@ -1214,6 +1218,10 @@
 			autonym: 'नेपाल भाषा',
 			inputmethods: [ 'hi-transliteration', 'hi-inscript' ]
 		},
+		nia: {
+			autonym: 'li niha',
+			inputmethods: [ 'nia-tilde' ]
+		},
 		nn: {
 			autonym: 'Norsk (nynorsk)',
 			inputmethods: [ 'nb-normforms', 'nb-tildeforms' ]

test/jquery.ime.test.fixtures.js

@@ -3757,6 +3757,16 @@ var palochkaVariants = {
 			{ input: '~~', output: '~', description: "N'Ko transliteration ~~" }
 		]
 	},
+	{
+		description: 'Nias tilde test',
+		inputmethod: 'nia-tilde',
+		tests: [
+			{ input: '~O moroi', output: 'Ö moroi', description: 'Nias tilde Ö moroi' },
+			{ input: 'Sanandr~osa', output: 'Sanandrösa', description: 'Nias tilde Sanandrösa' },
+			{ input: 'MIYA~WA', output: 'MIYAŴA', description: 'Nias tilde MIYAŴA' },
+			{ input: 'zali~wa-li~wa', output: 'zaliŵa-liŵa', description: 'Nias tilde zaliŵa-liŵa' }
+		]
+	},
 	{
 		description: 'Northern Sotho tilde test',
 		inputmethod: 'nso-tilde',