Locale dependence

[Dirk Laurie <dpl@...>]

>From the reference manual:

os.setlocale (locale [, category])

> Sets the current locale of the program. locale is a string specifying a
> locale; category is an optional string describing which category to change:
> "all", "collate", "ctype", "monetary", "numeric", or "time";

collate — affects string comparisons
ctype   — affects character classes in patterns, upper/lower
numeric — affects the result of tostring() with numeric arguments
time    — affects os.data() without arguments

But I can't figure out what Lua feature depends on "monetary".

Dirk