Re: What does "Velocimacro with a Body" mean?

It should work, so debug it by testing everything:

------%<------

#macro(my_trim)$bodyContent becomes $!bodyContent.trim()#end

Just #qu: #query_url("sometext")

Trimmed: #@my_trim()#query_url("sometext")#end

------>%------

On 08/07/2013 05:09 PM, O. Olson wrote:
> 
> 
> Thank you very much Nathan for clarifying what body content
> meant. At least now I know what it means, but I think I am having a problem
> with my trim function here. It seems to delete everything. I have no clue how
> this worked previously.
>  
> To avoid naming conflicts, I decided to rename my macro. It
> now looks like: 
>  #macro(query_url $query_param)
>     q=$query_param
> #end
> 
> #macro(my_trim)$!bodyContent.trim()#end 
> 
>  
>  
> I call it using 
>  #@my_trim()#query_url("sometext")#end 
> 
>  
> And the result is blank i.e. I do not see anything in the
> result. I now attempt: 
> #macro(my_trim)PREPEND$!bodyContent.trim()#end 
> 
>  
> This time I see only:
>  PREPEND 
> 
> This is expected, but why nothing from  $!bodyContent.trim()
> 
> I don't know what is happening to trim() function i.e. why
> it is not working. But thank you for answering my question.
>  
> O. O.
> 
> 
> ----- Messaggio originale -----
> Da: Nathan Bubna <[email protected]>
> A: Velocity Users List <[email protected]>; O. Olson <[email protected]>
> Cc: 
> Inviato: Lunedì 5 Agosto 2013 22:34
> Oggetto: Re: What does "Velocimacro with a Body" mean?
> 
> Yes, all velocimacros have bodies in their definition:
> 
>   #macro( foo ) definition only #end
>   #macro( bar ) definition accepts $bodyContent #end
> 
> Not all velocimacros accept bodies in their usage:
> 
>   #foo()
>   #@bar() body content when used #end
> 
> Produces:
> 
>   definition only
>   definition accepts body content when used
> 
> As to why your example ends up with preceding spaces, i am not
> certain. The "format" part in particular, because Velocity has only
> input text and output text, no "format".  Try defining your #@trim
> like so:
> 
>   #macro( trim )$!bodyContent.trim()#end
> 
> to ensure there are no sneaky whitespaces hiding in the definition.
> 
> 
> On Mon, Aug 5, 2013 at 9:25 AM, O. Olson <[email protected]> wrote:
>> Hi,
>>
>>              I am new to
>> Velocity and I am wondering what "Velocimacro with a Body" means?
>> Here, I am referring to the description in http://velocity.apache.org/engine/releases/velocity-1.7/vtl-reference-guide.html#amacro_-_Allows_users_to_define_a_Velocimacro_VM_a_repeated_segment_of_a_VTL_template_as_required
>>
>>              I thought
>> all Velocimacros had bodies, just like all non-trivial functions in C or Java
>> have bodies. I attempted the use the above suggestion given in the URL and it did not
>> work.
>>
>> I attempted the following in my Global Library:
>>
>> #macro(query_url $query_param)
>>      q=$query_param
>> #end
>>
>> #macro(trim)
>> $!bodyContent.trim()
>> #end
>>
>> According to the above URL, in my template, I called this
>> using:
>>
>> #@trim()#query_url("sometext")#end
>>
>>
>> The result seems to be:
>>              q=sometext
>>
>> i.e. there are spaces in the front that I don't like.
>> (Depending on the format you are looking at, these preceeding spaces might be
>> deleted, but they appear in the rendered results.) Any ideas what I am doing
>> wrong?
>>
>> Thank you in advance,
>> O. O.

-- 
Sergiu Dumitriu
http://purl.org/net/sergiu