The language and formatting conventions can now only be set when
creating the objects. This removed the needs for locking them when
formatting to avoid some other thread changing the format while it's
being used.
Adjust tests and DeskBar TimeView to the API changes.
* Instead of parsing the pattern everytime Format() is called, parse it
only once when the object is created.
* Adjust all callers to make use of the feature and reuse the instance
as much as possible. This also allows calling B_TRANSLATE only once
instead of everytime the formatting needs to be done. We use either a
static instance (when the message pattern is constant) or a field (when
it is not known to be constant).
* Since the BMessageFormat instances are now reused, add locking to
avoid race conditions (ICU itself is thread safe, but the format pattern
is recreated when the locale is changed)
This can be used to format complex messages properly. It moves the
complexity of handling plural forms, gender, and anything else needed
into the localizable string, rather than hardcoding it in the code.
This moves the difficulty of handling these things properly to people
doing translations, rather than relying on developers to do it.
Fixes#10755, but our localization must now be updated to make use of
the feature.
