Changing locale for a bracketed pattern

Syntax

(<locale designator>){<pattern>}

This sets the current locale for the <pattern> to be the one named by the <locale designator>. A locale designator is an IANA language tag (plus letting _ be interchangeable with -).

For example, sv is a locale designator for Swedish, and sv_SE is a locale designator for Swedish as used in Sweden. The latter also implies a default currency of SEK.

Similarly, jp is a locale designator for Japanese, jp_JA is a locale designator for Japanese in Japan. The latter also implies a default currency of JPY, as well as enables the use of Japanese eras.