thanks i was looking for the if and ferach tasks now i found them :-) > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > Sent: Thursday, August 15, 2002 11:01 PM > To: Bob Stone > Subject: Re: nested properties anyone? > > > Pardon my ignorance, it took me some extensive "googleing" to > find out that > ant-contrib is a Sourceforge project that has nothing to do > (per say) with an > official Ant site. For anyone interested the manual is at > http://ant-contrib.sourceforge.net/ant-contrib/manual/ > > Bob > > Quoting Erik Hatcher <[EMAIL PROTECTED]>: > > > From chapter 10 of Java Development with Ant [1] (gotta > make my plugs > > somehow!): > > > > Copying properties > > In section 3.10.1 we demonstrate an obscure way to > dereference property > > values by using Ant's built-in capabilities. The ant-contrib [2] > > <propertycopy> task makes property dereferencing much > cleaner and easier > > to understand. We have refactored the example we presented > earlier to > > use <propertycopy>: > > > > <target name="propertycopy"> > > <property name="X" value="Y"/> > > <property name="Y" value="Z"/> > > <propertycopy name="A" from="${X}"/> > > <echo message="A = ${A}"/> > > </target> > > > > The value of ${X} is "Y". The from attribute of > <propertycopy> refers to > > an Ant property name, "Y" in this example. The value of the > property Y > > is "Z", so the output is "A = Z". This is a much nicer > alternative than > > using the refid tricks. > > > > [1] http://www.amazon.com/exec/obidos/ASIN/1930110588 > > [2] http://sourceforge.net/projects/ant-contrib/ > > > > Erik > > > > > > > > Matt Benson wrote: > > > Agreed on nested properties expansion. > > > > > > -Matt > > > > > > --- [EMAIL PROTECTED] wrote: > > > > > >>Problem: > > >>From the list of the predefined properties key=value > > >>select one based on the > > >>value of some other property and use it as a default > > >> > > >>Example: > > >>I have a list of servers (hosts.properties), where > > >>key is an actual hostname > > >>(obtained from hostname command) and value is a > > >>domain, e.g. > > >>host_one=host_one.somewhere.com > > >>host_two=host_two.some.place.else.com > > >>I want to determine on which machine I'm running the > > >>script and use a full > > >>domain name further in the script. > > >> > > >>Solution? > > >>1. <property file="hosts.properties"/> > > >>2. <exec outputproperty="hostname" > > >>executable="hostname"/> > > >>3. Now I have a ${hostname} and I want to assign its > > >>value to the property > > >>build.host that I use in my script. My first > > >>reaction was to do this: > > >><property name="build.host" refid="${${hostname}}"/> > > >>Well it didn't work because curleys are evaluated > > >>only once and I'm getting the > > >>value of build.host literaly as "${hostname}" > > >>Is there any other way? Any way? > > >>And I think that it would be nice feature to > > >>reevaluate the nested brackets > > >> > > >>Bob Stone > > >> > > >>-- > > >>To unsubscribe, e-mail: > > >><mailto:[EMAIL PROTECTED]> > > >>For additional commands, e-mail: > > >><mailto:[EMAIL PROTECTED]> > > >> > > > > > > > > > __________________________________________________ > > > Do You Yahoo!? > > > HotJobs - Search Thousands of New Jobs > > > http://www.hotjobs.com > > > > > > -- > > > To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > > > > > > > > > > > > > > -- > > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > >
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