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From "Jose Alberto Fernandez" <j_a_fernan...@yahoo.com>
Subject Re: [PROPOSE] task parameters that are only supplied when a property is defined
Date Sat, 09 Mar 2002 08:42:09 GMT
From: <costinm@covalent.net>

> On Sat, 9 Mar 2002, Darrell DeBoer wrote:
> 
> > Hi
> > 
> > On Sat, 9 Mar 2002 16:15, costinm@covalent.net wrote:
> > > If you use $!{name}, ant will certainly not touch it - and your task
> > > can do it's own substitution.
> > 
> > This is not *quite* true. If you use "$!{name}", ant will strip the "$", so 
> > you'll see "!{name}" as the value. (This is because ant strips all single "$" 
> > characters without warning, unless they are part of a "${...}" construct.) 
> > You'll need to use "$$!{name}" instead.
> 
> That's strange. 
> 
> Any problem in fixing this ? I checked the manual and it doesn't say you
> have to double $$ ( or I couldn't find that ), and $ is a valid character
> for an attribute. If this is true, we certainly need to fix it.
> 

This has been part of ANT syntax since ANT 1.1. "$" need to be escaped.
To change this now would cause all kinds of trubble I am afraid in particular
in things like <sql> tasks where the scripts themselves have to use '$$'.

Jose Alberto



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