 						(?:
 							(?# 22: entity.function.arguments.left.apl)
 							(
-								[A-Z¯_a-zÀ-ÖØ-Ýßà-öø-üþ∆⍙Ⓐ-Ⓩ]
-								[A-Z¯_a-zÀ-ÖØ-Ýßà-öø-üþ∆⍙Ⓐ-Ⓩ0-9]*
+								[A-Z_a-zÀ-ÖØ-Ýßà-öø-üþ∆⍙Ⓐ-Ⓩ]
+								[A-Z_a-zÀ-ÖØ-Ýßà-öø-üþ∆⍙Ⓐ-Ⓩ¯0-9]*
 								\\s+
 							)
 

								(\\{\\s*\\()   (?# 28: punctuation.definition.arguments.begin.apl)
								(?:
									\\s*
									[A-Z¯_a-zÀ-ÖØ-Ýßà-öø-üþ∆⍙Ⓐ-Ⓩ]
									[A-Z¯_a-zÀ-ÖØ-Ýßà-öø-üþ∆⍙Ⓐ-Ⓩ0-9]*
									\\s*
								)*
								(\\)\\s*\\})   (?# 29: punctuation.definition.arguments.end.apl)

										\\s*
										(?:
											\\s*
											[A-Z_a-zÀ-ÖØ-Ýßà-öø-üþ∆⍙Ⓐ-Ⓩ]
											[A-Z_a-zÀ-ÖØ-Ýßà-öø-üþ∆⍙Ⓐ-Ⓩ¯0-9]*
											\\s*

											(?# 42: invalid.illegal.extra-characters.apl)
