[loc-en-dev] Error handling in LocaleBuilder and forLanguageTag
y.umaoka at gmail.com
Thu Mar 5 10:40:10 PST 2009
Naoto Sato wrote:
> I have two comments as follows:
> - Locale.forLanguageTag(): Please describe how the lenient behavior
> works in the spec. This should not be implementation dependent.
* Returns a locale for the specified language tag string. If the
* specified language tag contains any non-well-formed subtags, the
* such subtag and all following subtags are ignored.
This is the current JavaDoc description. I think we'll just refer BCP47
for subtag validation. Or, put the current BCP47 langtag BNF here. I
actually think we should update the API doc for Locale class and explain
the relationship with BCP47 language tag / what is
well-formed/ill-formed and etc.
> - What happens with Builder.setLanguageTag(), if some other setXXX()s
> are previously called and they conflict? Are they reset strictly to
> setLanguageTag(), or superset tag is created, or an exception?
Builder#setLocale and setLanguageTag will overwrite all fields. For
will return Locale en, not en_US.
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