diff --git a/rules/akb/akb-keyboard.js b/rules/akb/akb-keyboard.js
index c0b82141..c7221856 100644
--- a/rules/akb/akb-keyboard.js
+++ b/rules/akb/akb-keyboard.js
@@ -3,48 +3,49 @@
 
 	var angkolaKbd = {
 		id: 'akb-keyboard',
-		name: 'Angkola Keyboard',
+		name: 'Surat Angkola',
 		description: 'QWERTY-based Batak Angkola keyboard',
 		date: '2023-07-28',
 		URL: 'https://www.mediawiki.org/wiki/Help:Extension:UniversalLanguageSelector/Input_methods/akb-keyboard',
 		author: 'Benny Lin',
+		license: 'GPLv3',
 		version: '1.0',
 		patterns: [
-			[ 'q', '᯲' ],// 	1BF2 ᯲ BATAK PANGOLAT (PANGGOTAP) = virama
-			[ 'w', 'ᯋ' ],//1BCB ᯋ BATAK LETTER WA 
+			[ '(q|Q)', '᯲' ],// 	1BF2 ᯲ BATAK PANGOLAT (PANGGOTAP) = virama
+			[ '(w|W)', 'ᯋ' ],//1BCB ᯋ BATAK LETTER WA 
 			[ 'e', 'ᯩ' ],//1BE9 ᯩ BATAK VOWEL SIGN EE = talinga
-			[ 'r', 'ᯒ' ],//1BD2 ᯒ BATAK LETTER RA 
+			[ 'E', 'ᯧ' ],//1BE7 ᯧ BATAK VOWEL SIGN E = kebereten 
+			[ '(r|R)', 'ᯒ' ],//1BD2 ᯒ BATAK LETTER RA 
 			[ 't', 'ᯖ' ],//1BD6 ᯖ BATAK LETTER SOUTHERN TA 
-			[ 'y', 'ᯛ' ],//1BDB ᯛ BATAK LETTER YA 
+			[ 'T', 'ᯗ' ],//1BD7 ᯗ BATAK LETTER NORTHERN TA 
+			[ '(y|Y)', 'ᯛ' ],//1BDB ᯛ BATAK LETTER YA 
 			[ 'u', 'ᯮ' ],//1BEE ᯮ BATAK VOWEL SIGN U = boruta 
+			[ 'U', 'ᯥ' ],//1BE5 ᯥ BATAK LETTER ina ni surat U
 			[ 'i', 'ᯪ' ],//1BEA ᯪ BATAK VOWEL SIGN I = ulua 
-			[ 'o', 'ᯬ' ],//1BEC ᯬ BATAK VOWEL SIGN O = siala ulu 
-			[ 'p', 'ᯇ' ],//1BC7 ᯇ BATAK LETTER PA 
+			[ 'I', 'ᯤ' ],//1BE4 ᯤ BATAK LETTER ina ni surat I 
+			[ '(o|O)', 'ᯬ' ],//1BEC ᯬ BATAK VOWEL SIGN O = siala ulu 
+			[ '(p|P)', 'ᯇ' ],//1BC7 ᯇ BATAK LETTER PA 
 
-			[ 'a', 'ᯀ' ],//1BC0 ᯀ BATAK LETTER A 
-			[ 's', 'ᯘ' ],//1BD8 ᯘ BATAK LETTER SA 
-			[ 'd', 'ᯑ' ],//1BD1 ᯑ BATAK LETTER DA 
-			[ 'f', '᯳' ],//1BF3 ᯳ BATAK PANONGONAN = virama 
-			[ 'g', 'ᯎ' ],//1BCE ᯎ BATAK LETTER GA 
+			[ '(a|A)', 'ᯀ' ],//1BC0 ᯀ BATAK LETTER A 
+			[ '(s|S)', 'ᯘ' ],//1BD8 ᯘ BATAK LETTER SA 
+			[ '(d|D)', 'ᯑ' ],//1BD1 ᯑ BATAK LETTER DA 
+			[ '(f|F)', '᯳' ],//1BF3 ᯳ BATAK PANONGONAN = virama 
+			[ '(g|G)', 'ᯎ' ],//1BCE ᯎ BATAK LETTER GA 
 			[ 'h', 'ᯂ' ],//1BC2 ᯂ BATAK LETTER HA 
-			[ 'j', 'ᯐ' ],//1BD0 ᯐ BATAK LETTER JA 
-			[ 'k', 'ᯂ' ],//1BC2 ᯂ BATAK LETTER HA 
-			[ 'l', 'ᯞ' ],//1BDE ᯞ BATAK LETTER LA 
+			[ 'H', 'ᯱ' ],//1BF1 ᯱ BATAK CONSONANT SIGN H = hajoringan  (-h)
+			[ '(j|J)', 'ᯐ' ],//1BD0 ᯐ BATAK LETTER JA 
+			[ '(k|K)', 'ᯂ' ],//1BC2 ᯂ BATAK LETTER HA 
+			[ '(l|L)', 'ᯞ' ],//1BDE ᯞ BATAK LETTER LA 
 
 			[ 'z', 'ᯝ' ],//1BDD ᯝ BATAK LETTER NGA 
-			[ 'x', 'ᯠ' ],//1BE0 ᯠ BATAK LETTER NYA 
-			[ 'c', 'ᯡ' ],//1BE1 ᯡ BATAK LETTER CA 
-			[ 'v', '᯦' ],//1BE6 ᯦ BATAK SIGN TOMPI
-			[ 'b', 'ᯅ' ],//1BC5 ᯅ BATAK LETTER BA 
-			[ 'n', 'ᯉ' ],//1BC9 ᯉ BATAK LETTER NA 
-			[ 'm', 'ᯔ' ],//1BD4 ᯔ BATAK LETTER MA 
-
-			[ 'E', 'ᯧ' ],//1BE7 ᯧ BATAK VOWEL SIGN E = kebereten 
-			[ 'T', 'ᯗ' ],//1BD7 ᯗ BATAK LETTER NORTHERN TA 
-			[ 'U', 'ᯥ' ],//1BE5 ᯥ BATAK LETTER ina ni surat U
-			[ 'I', 'ᯤ' ],//1BE4 ᯤ BATAK LETTER ina ni surat I 
-			[ 'H', 'ᯱ' ],//1BF1 ᯱ BATAK CONSONANT SIGN H = hajoringan  (-h)
 			[ 'Z', 'ᯰ' ],//1BF0 ᯰ BATAK CONSONANT SIGN NG = amisara (-ng)
+			[ '(x|X)', 'ᯠ' ],//1BE0 ᯠ BATAK LETTER NYA 
+			[ '(c|C)', 'ᯡ' ],//1BE1 ᯡ BATAK LETTER CA 
+			[ '(v|V)', '᯦' ],//1BE6 ᯦ BATAK SIGN TOMPI
+			[ '(b|B)', 'ᯅ' ],//1BC5 ᯅ BATAK LETTER BA 
+			[ '(n|N)', 'ᯉ' ],//1BC9 ᯉ BATAK LETTER NA 
+			[ '(m|M)', 'ᯔ' ],//1BD4 ᯔ BATAK LETTER MA 
+
 			[ '^^', '^' ],
 			[ '^', 'ᯰ' ],//1BF0 ᯰ BATAK CONSONANT SIGN NG = amisara (-ng)
 			[ '<<', '<' ],