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From Douglas McCarroll <mccarroll.doug...@gmail.com>
Subject Re: What is $.. ?
Date Sat, 21 Apr 2007 16:09:25 GMT
Vincent wrote:
> You can try replace the first line to
> <property name="projects.dir" value="$aaa" /> then try it again.


Thanks Vincent. I've tried your suggestion and the explanation seems 
fairly simple. "$.." is simply a string, nothing more.


Here's my understanding:


  <property name="projects.dir" value="$aaa" />
  <echo message="${projects.dir}"/>
     [echo] $aaa

So "$aaa" or "$.." are just string values?



  <echo message="${projects.dir}\AntLog.log"/>
     [echo] $aaa\AntLog.log

A simple string value would also explain this.



  <dirname property="projects.dirname" file="${projects.dir}"/>
  <echo message="${projects.dirname}"/>
     [echo] c:\_Projects

Ant is assuming that "$aaa" is a filename and giving me the current 
directory.



  <dirname property="logfiledirname" file="${projects.dir}\AntLog.log"/>
  <echo message="${logfiledirname}"/>
     [echo] c:\_Projects\$aaa

Here Ant assumes that I'm specifying [CurrrentDirectory]\$aaa\AntLog.log 
and returns the file's directory path.


Seems pretty straightforward. Let me know if any of this is wrong.

Now I'll go back and look at the file where I first found $.., and see 
if I can figure out what they were doing.  :-)

Thanks again!



>
> On 4/21/07, Douglas McCarroll <mccarroll.douglas@gmail.com> wrote:
>> Hi All,
>>
>> I ran across "$.." in an Ant file and am trying to understand what it
>> does. Can't find any documentation. So basic as to not require 
>> explanation?
>>
>>
>> When I run a C:\Projects\build.xml file with this code in it:
>>
>>   <property name="projects.dir" value="$.." />
>>   <dirname property="projects.dirname" file="${projects.dir}"/>
>>   <dirname property="logfiledirname" file="${projects.dir}\AntLog.log"/>
>>
>>   <echo message="${projects.dir}"/>
>>   <echo message="${projects.dirname}"/>
>>   <echo message="${projects.dir}\AntLog.log"/>
>>   <echo message="${logfiledirname}"/>
>>
>>
>> I get this:
>>
>>     [echo] $..
>>     [echo] c:\Projects
>>     [echo] $..\AntLog.log
>>     [echo] c:\Projects\$..
>>
>>
>> The first three echoes would make sense to me if $.. indicated the
>> current directory, but a single dot does that. What's the difference?
>>
>> The fourth echo doesn't make sense to me at all...
>>
>> Douglas
>>
>>
>>
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