Re: Remove last comma...

[Dimitrios Kolovos]

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" <[EMAIL PROTECTED]>
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:[EMAIL PROTECTED]
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" <[EMAIL PROTECTED]>
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:[EMAIL PROTECTED]
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
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]