Re: Is MessageFormat supported?

I'll try this, although I was hoping to get away without ResourceBundles
specifically. To clarify a bit, here's a quick overview of what I'm doing:

I have all my localized strings in two files - i18n_en_US.ftl and
i18n_es_MX.ftl. In my top-level template I have...

<#import "i18n.ftl" as i18n />

...so the localization picks up the correct file based on the locale
string, which is already set up earlier in the template. This works fine
for fixed strings, of course. However I would like to be able to have
MessageFormat pattern strings in those same files, such as:

<#-- English version. i18n_es_MX.ftl has the Spanish translation -->
<#assign dateAndTimeNow = "It is {0,time} on {0,date}." />

Now in my actual template text body I would like to be able to do something
like this, using a hypothetical "?message" builtin:

<#assign now = "2009-10-20 14:38:00"?datetime("yyyy-MM-dd HH:mm:ss") />
${i18n.dateAndTimeNow?message(now)}

In this case the hypothetical "?message" builtin would take the string as a
MessageFormat pattern, and the bracketed parameter list ('now' in this
case) as the argument list to be rendered using a call to
java.text.MessageFormat. Nice for me - I just put my patterns in the same
files as my other strings and use the localization feature to take care of
it, and I don't have to mess with separate resource bundles.

Well, I did a little experiment and it turns out that I can make a
TemplateMethodModel subclass that almost does what I want. The only thing
is that it receives its arguments as a List<String> so I have to preformat
the values in the template, but for now I think it'll do.

i18n_en_US.ftl:
<#assign dateAndTimeNow = "It is {0} on {1}." />

calling template:
<#setting locale = "en_US" />
<#import "i18n.ftl" as i18n />
${messageFormat(i18n.dateAndTimeNow, now?date, now?time)}

Daniel Dekany <[email protected]> wrote on 10/21/2009 02:06:34 PM:

> Wednesday, October 21, 2009, 6:00:03 PM, [email protected] wrote:
>
> > I'm trying to use MessageFormat in combination with FM's localization
> > feature but I'm having some problems (which I won't go into at this
time).
> > My question is, are there features in FreeMarker (builtins, for
example)
> > that help with this and that may save me some effort? I don't see
anything
> > in the online manual, but maybe I'm missing something.
>
> freemarker.ext.beans.ResourceBundleModel deals with this, AFAIR.
> ResoureBundles should be wrapped into it automatically, so it's not
> like you should know about this class. Just drop a ResourceBundle into
> the data-model, then the resulting variable will be (copy-paste from
> the JavaDoc):
>
> A hash model that wraps a resource bundle. Makes it convenient to
> store localized content in the data model. It also acts as a method
> model that will take a resource key and arbitrary number of arguments
> and will apply MessageFormat with arguments on the string represented
> by the key.
>
> Typical usages:
>
>     * bundle.resourceKey will retrieve the object from resource bundle
>       with key resourceKey
>
>     * bundle("patternKey", arg1, arg2, arg3) will retrieve the string
>       from resource bundle with key patternKey, and will use it as a
>       pattern for MessageFormat with arguments arg1, arg2 and arg3
>
>
> --
> Best regards,
>  Daniel Dekany
>
>
>
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Come build with us! The BlackBerry(R) Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay 
ahead of the curve. Join us from November 9 - 12, 2009. Register now!
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