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From Vadim Gritsenko <va...@reverycodes.com>
Subject Re: Expression languages (was Re: [RT] StringTemplate: The answer to our templating needs?)
Date Fri, 29 Oct 2004 13:05:39 GMT
Sylvain Wallez wrote:
> Carsten Ziegeler wrote:
> 
>> Sylvain Wallez wrote:
>>
>>> That's exactly what I suggest above: we choose a standard default 
>>> language, but open the possibility to plug in new ones. XPath is a 
>>> must-have, Jexl and IM have very valid use cases which IMO justify 
>>> them to be provided by Cocoon. Other languages are just a possibility 
>>> that we offer _if_ people want to add their own language.
>>
>>
>> What can you do with Jexl what you can't do with an XPath based
>> language? My understanding is that they only differ in their syntax
>> ('.' instead of '/').
>> Now even if Jexl has more functionality I don't see a reason why
>> this could not be added to an xpath based language.
>
> 
> Technically this should be possible, but how do we write something like 
> "widget.getChild("foo").getAttribute("bar")" in XPath?

Tecnically, this will be
   getAttribute(getChild($widget, "foo"), "bar")

in JXPath. Not exactly easy to read, but possible :)

Vadim

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