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From Jeffrey Bacon <jba...@magmic.com>
Subject Re: recursive expansion of property names
Date Fri, 25 Jun 2004 14:29:21 GMT
I think it must be that since I'm encapsulating the default property 
handler, I need to pass EVERY get/set method to the encapsulated 
property handler and also run them through my recursive resolution 
algorithm to get them to resolve.
--
Jeffrey Bacon
jbacon@magmic.com
Creative Developer
http://www.magmic.com


Jeffrey Bacon wrote:
> <!-- none of these resolve as ${env.WHATEVER} -->
> <property environment="env" />
> 
> -- assuming macrodef works as advertised (which I have checked without 
> the custom property handler) then this should resolve (it's in a 
> macrodef with 'file' as an attribute so I actually use @{file})
> 
> <property file="${basedir}/${file}" />
> 
> -- 
> Jeffrey Bacon
> jbacon@magmic.com
> Creative Developer
> http://www.magmic.com
> 
> Wascally Wabbit wrote:
> 
>> At 07:32 PM 6/24/2004, you wrote:
>>  >sorry, I copied the line from a macro and forgot to modify the @.
>>  >
>>  >Your example (first one) doesn't load properties from a file nor import
>>  >the environment variables.  Are they handled differently?
>>
>> You'd have too look at <property>'s implementation but wrt. the custom
>> PropertyHelper I would not think it makes little difference (not 
>> checked).
>> If you're passing all the "sets" and the "gets" through to the original
>> helper (Ants) you should be ok.
>>
>> What is the sample you wanted to show didn't work? The original you
>> posted was wrong.
>>
>>
>>  >In example two, it should resolve as follows (if everything worked 
>> correctly):
>>  >
>>  >${${_ant}${_dot}${_file}}
>>  >${ant${_dot}${_file}}
>>  >${ant.${_file}}
>>  >${ant.file}
>>  >
>>  >ant print:
>>  >'ant.file(1)': ${ant.file}
>>  >
>>  >because ${ant.file} is not defined.
>>  >
>>  >if you added the definition:
>>  >   <property name="ant.file" value="ant.file" />
>>  >
>>  >then it would resolve ${ant.file} and print:
>>  >'ant.file(1)': ant.file
>>
>> This is still wrong isn't it? I wanted it to resolve to the value
>> of the 'ant.file' property (which the Ant runtime already auto-installs).
>> But this is a side-issue...you'll have to ping the original author
>> of the recursive algo for whether my sample makes sense...
>>
>>
>>  >--
>>  >Jeffrey Bacon
>>  >jbacon@magmic.com
>>  >Creative Developer
>>  >http://www.magmic.com
>>  >
>>  >
>>  >Wascally Wabbit wrote:
>>  >>A typo? I don't think normal property expansion recognizes
>>  >>the '@'; that token is reserved for use inside macros...no?
>>  >>This works fine for me:
>>  >>   <property name="afN" value=".file"/>
>>  >>   <echo message="'ant.file(0)': ${ant${afN}}"/>
>>  >>This does not work (the recursive code doesn't handle it):
>>  >>     <property name="_dot" value ="."/>
>>  >>     <property name="_ant" value="ant"/>
>>  >>     <property name="_file" value="file"/>
>>  >>     <echo message="'ant.file(1)': ${${_ant}${_dot}${_file}}"/>
>>  >>At 06:34 PM 6/24/2004, you wrote:
>>  >>
>>  >>>well that's better.  It resolves the ${basedir} now but won't resolve
>>  >>>properties defined as so:
>>  >>>
>>  >>>   <property environment="env" />
>>  >>>   <property file="${basedir}/@{file}" />
>>  >>>
>>  >>>--
>>  >>>Jeffrey Bacon
>>  >>>jbacon@magmic.com
>>  >>>Creative Developer
>>  >>>http://www.magmic.com
>>  >>>
>>  >>>[[ snip ]]
>>  >>
>>  >>The Wabbit
>>
>> The Wabbit
>>
>>
>>
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