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https://issues.apache.org/jira/browse/TAPESTRY-2016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Howard M. Lewis Ship updated TAPESTRY-2016:
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Fix Version/s: 5.1
> Make it simple to add new parser patterns
> -----------------------------------------
>
> Key: TAPESTRY-2016
> URL: https://issues.apache.org/jira/browse/TAPESTRY-2016
> Project: Tapestry
> Issue Type: Wish
> Affects Versions: 5.0.8
> Reporter: Kevin Menard
> Fix For: 5.1
>
>
> I realize that this is a wish item, but I think it could add a lot of power
> to Tapestry. Right now, expansions are awesome to use, but at the same time
> they're still quite limited. Being able to contribute new expansion patterns
> could lead to some really interesting results.
> At the simplest level, I could just use something other than ${blah}. For
> example, my first T5 app was basically a port from a Django app. Django uses
> {{blah}} for its form of expansions. If I could have contributed that as a
> pattern the migration would have gone a lot easier.
> Things could get increasingly more sophisticated, however. Looking at Django
> again, they have something called "filters" that seem quite similar to T5's
> mixins. What's interesting is that filters can be chained together in an
> expansion. As an example:
> {{ object.date|date:"F j, Y" }}
> That takes a date from some object and pipes it through the date filter,
> which is configured with the text following the colon.
> You could string these arbitrarily long. Maybe you have one filter to make
> clickable URLs out of any URLs in a given text section and then pipe it into
> another that truncates the total amount of text.
> I could see value in adding yet another expansion for outputting raw values
> rather than using a component in the template to do so.
> Anyway, lots of things I'd like to see enhanced with the template processor
> in general. I think the path of least resistance would be to make it
> possible for someone to easily make a contribution and if something becomes
> popular enough, look at adding it to Tapestry proper.
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