Checks if a value is a valid basic language range.
Validates basic language ranges according to RFC 4647 § 2.1.
A basic language range is a sequence of subtags (e.g., en, en-US) or the standalone * wildcard.
Parameters
value: unknown
The value to validate as a basic language range
Returns valueisstring
true if the value matches the basic language range pattern; false otherwise
Checks if a value is a valid basic language range.
Validates basic language ranges according to RFC 4647 § 2.1. A basic language range is a sequence of subtags (e.g.,
en,en-US) or the standalone*wildcard.