[Webmacro-devel] Refinement of the null testing directive idea

[Marc P. <ma...@an...>]

Just fiddling a bit more and thought that maybe this would be a nice 
construct:

<input name="somefield"
#nulltest $MyProp.SomeProp.FinalProp
   value="$Value"
#end
>

...where $Value is a variable created by the directive which refers to the 
non-null value of the original property evaluation. This reduces repetition 
and hence errors compared to the very boring:

<input name="somefield"
#if ($MyProp.SomeProp.FinalProp)
   value="$MyProp.SomeProp.FinalProp"
#end
>

This #nulltest caters for simple expansion where you just want to render 
the value if it is not null, but also allows you to do other things with 
the value while not having to explicitly refer to it.

Sure, a #set to a temp var before the #if will also take care of this, but 
it might be a little bit nicer and doesn't pollute the context.

-- 
Marc Palmer
Contract Java Consultant/Developer
			
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