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From "Dimitrios Kolovos" <dskolo...@gmail.com>
Subject Re: Remove last comma...
Date Tue, 18 Jan 2005 19:44:15 GMT
Thank you all for your replies. The best solution in my case is the inline 
evaluation $foo="#foreach...#end" Shinobu suggested. What I would like to 
ask is whether I can trigger in some way the re-evaluation of $foo.

Dimitrios

----- Original Message ----- 
From: "Wiebe de Jong" <wiebedj@shaw.ca>
To: "'Velocity Users List'" <velocity-user@jakarta.apache.org>
Sent: Monday, January 17, 2005 7:22 PM
Subject: RE: Remove last comma...


> Yes. This is the standard pattern I use for displaying lists:
>
> if (list not null)
>  display header
>  display element[1]
>  loop (each element in list)
>    display separator
>    display element[n]
>  display footer
>
> Having a check before the loop depends on how the loop is done. In Java, I
> use a while loop, so no check is required. I don't know how the foreach 
> loop
> in Velocity would handle an empty list.
>
> Wiebe de Jong
>
> -----Original Message-----
> From: Will Glass-Husain [mailto:wglass@forio.com]
> Sent: Monday, January 17, 2005 10:55 AM
> To: Velocity Users List
> Subject: Re: Remove last comma...
>
> Then you need an if statement to ensure the list has at least 2 elements.
>
> WILL
>
> ----- Original Message ----- 
> From: "Wiebe de Jong" <wiebedj@shaw.ca>
> To: "'Velocity Users List'" <velocity-user@jakarta.apache.org>
> Sent: Monday, January 17, 2005 10:04 AM
> Subject: RE: Remove last comma...
>
>
>> How about process the fist line separately, then all the rest.
>>
>> $1
>> #foreach ($i in [2..10],$i#end
>>
>> Will product 1,2,3..10
>>
>> Wiebe de Jong
>>
>> -----Original Message-----
>> From: Dimitrios Kolovos [mailto:dskolovos@hotmail.com]
>> Sent: Friday, January 14, 2005 2:18 AM
>> To: Velocity Users List
>> Subject: Remove last comma...
>>
>> Hi all,
>>
>> When iterating a collection/array it is usual that you add something 
>> after
>> each iteration except for the last.
>>
>> e.g.
>>
>> #foreach ($i in [1..10])$i,#end
>>
>> produces
>>
>> 1,2,3..10,
>>
>> The only way I know in which I can omit the last comma is to use
>> velocityount. Nevertheless, I think it would be more elegant if there was
>> a
>> variable (e.g. $output) in the context that represented the so far
>> produced
>> text. Then I could call a method like $output.chop(n) and chop the last n
>> characters.
>>
>> Any thoughts?
>>
>> Dimitrios Kolovos
>>
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>
>
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