Re: proposal, add rule based number formatting to ICU message format

I like the direction, but I'd like this to be somewhat broader; in
particular, allow some way for ordinals to be used date formats, e.g. for
"January 20th, 2005"

‎Mark

----- Original Message ----- 
From: "Doug Felt" <[email protected]>
To: <[email protected]>
Sent: Wednesday, July 28, 2004 10:14
Subject: proposal, add rule based number formatting to ICU message format


> Please respond by August 11th.  This proposal applies to both ICU and
ICU4J.
> This is for jitterbug #4019.
>
> The proposal is to extend the message format syntax to provide support for
> RuleBasedMessageFormat.
>
> MessageFormat currently has a three-argument syntax for subformats,
consisting
> of an index, a format type keyword, and a subformat style or pattern
(which can
> be elided).  The current format type keywords are number, date, time, and
> choice.
>
> RuleBasedNumberFormat has three types of standard rules-- spellout,
ordinal,
> and duration.  Each of these can have multiple 'rulesets', to further
customize
> the behavior-- for example, some languages require gender or plural forms.
>
> In order to keep the existing MessageFormat three-argument syntax, I
propose
> adding three new format type keywords-- 'spellout', 'ordinal', and
'duration'--
> and allowing the ruleset name to be specified in the subformat pattern.
For
> example, the pattern "{0,spellout,%masculine}" would obtain the spellout
rules
> for the MessageFormat's locale, and set the ruleset named '%masculine' on
the
> formatter.  If no ruleset name is specified, the default ruleset would be
used.
>
>
> RuleBasedNumberFormat normally throws an exception if an unrecognized
ruleset
> name is provided to it.  In order to make the use of MessageFormat a bit
more
> robust in the case case of a data mismatch between the format string and
the
> locale data for RuleBasedNumberFormat, I propose to catch this exception
inside
> MessageFormat and use the default ruleset.
>
> Doug
>
>
>
>
>
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