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https://issues.apache.org/jira/browse/TAPESTRY-2043?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Howard M. Lewis Ship closed TAPESTRY-2043.
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Resolution: Won't Fix
Assignee: Howard M. Lewis Ship
If you need this, write your own component. It way too specialized behavior for
an off-the shelf component.
> Loop component could provide a parameter for delimiting its body for each
> iteration
> -----------------------------------------------------------------------------------
>
> Key: TAPESTRY-2043
> URL: https://issues.apache.org/jira/browse/TAPESTRY-2043
> Project: Tapestry
> Issue Type: Improvement
> Components: Core Components, tapestry-core
> Affects Versions: 5.0, 5.0.8
> Reporter: Chris Lewis
> Assignee: Howard M. Lewis Ship
>
> There are cases where one needs to output a list of data and delimit the
> items. In a simple situations, and in a world with perfect browsers, we could
> use CSS2 pseudo selectors to tack on trailng characters. In reality this is
> not an option, at least not now. Say a page has a list of strings like so:
> { "one", "two", "three" }
> The desired output is:
> one, two, three
> Currently this is not possible using the loop component. There are at least 2
> solutions that could be implemented, each of which was suggested on the
> mailing list. The first is to improve the 'language' used by T5 to support
> more tests:
> <t:loop source="strings" value="var:string" index="var:index">
> <a href="#" t:type="pagelink" page="nada"
> context="var:string">${var:string}</a>
> <t:if test="var:index < strings.size()">,</t:if>
> </t:loop>
> I'm under the impression that the language will be improved to do such
> things, but in my opinion this delimiting function is a common enough need to
> recognized it by a parameter in the Loop component proper:
> <t:loop source="strings" value="var:string" delimiter=", ">
> <a href="#" t:type="pagelink" page="nada"
> context="var:string">${var:string}</a>
> </t:loop>
> The logic would ensure that the output is only delimited and not create
> leading or trailing characters (if need they can be inserted outside of the
> component).
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