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From "Alexey Solofnenko" <trel...@gmail.com>
Subject Re: Seeking feedback on possible macrodef augmentation
Date Tue, 26 Sep 2006 16:09:14 GMT
+1 Good idea, Matt.

- Alexey.

On 9/26/06, Matt Benson <gudnabrsam@yahoo.com> wrote:
>
> It strikes me that we don't have a utility to
> declaratively build custom conditions from others;
> macrodef would seem the obvious choice for, e.g.:
>
> <macrodef name="isEmptyFile">
>   <attribute name="file" />
>   <sequential>
>     <and>
>       <available file="@{file}" type="file" />
>       <length file="@{file}" length="0" />
>     </and>
>   </sequential>
> </macrodef>
>
> But the result amounts to a Task: executable, but
> unavailable for use where conditions would be
> available.
>
> Would it make sense to allow this by allowing a nested
> <condition> as an alternative to <sequential>?  Then
> cloning the MacroInstance class to MacroCondition
> implements Condition, for use when <condition> is
> specified?  Cloning the entire MacroDef/MacroInstance
> family to have an entirely new task feels a little
> extreme to me here...
>
> Alternative suggestions?
>
> TIA,
> Matt
>
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-- 
Alexey N. Solofnenko trelony at gmail.com
home: http://trelony.cjb.net/
Pleasant Hill, CA (GMT-8 hours usually)

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