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Posted to user@velocity.apache.org by Saimon Moore <sa...@yahoo.co.uk> on 2002/04/14 19:21:28 UTC

horizontal foreach output

Hi..

Is there anyway to get the #foreach directive to do a print rather than
a println i..e

  From this

#foreach ($letter in $alphabet)
<a href="xxx">$letter</a>
#end

Can I get the output to be:

A B C D E F G H I J K L ...

instead of
A
B
C
D
E
F
G
H
...

I could easily create a tool and stick it in the context to do it I
suppose..but I was wondering if there was a way to do it with just vtl...

cheers...

Saimon



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Re: horizontal foreach output

Posted by Saimon Moore <sa...@yahoo.co.uk>.

I've come up with a quick work around i.e.

$letters = $letters + $link

where $link = <a href="xxx">$letter</a>

that works well ...but perhaps there's a switch in order to get foreach 
to to print rather than println..

Saimon

Saimon Moore wrote:

> Hi..
>
> Is there anyway to get the #foreach directive to do a print rather than
> a println i..e
>
>  From this
>
> #foreach ($letter in $alphabet)
> <a href="xxx">$letter</a>
> #end
>
> Can I get the output to be:
>
> A B C D E F G H I J K L ...
>
> instead of
> A
> B
> C
> D
> E
> F
> G
> H
> ...
>
> I could easily create a tool and stick it in the context to do it I
> suppose..but I was wondering if there was a way to do it with just vtl...
>
> cheers...
>
> Saimon
>
>

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Re: horizontal foreach output

Posted by Christoph Reck <Ch...@dlr.de>.

Hi,

I'm the one trying to get a quorum for a better whitespace handling,
more embedded...

Saimon Moore wrote:
> 
> Hi..
> 
> Is there anyway to get the #foreach directive to do a print rather than
> a println i..e
> 
>   From this
> 
> #foreach ($letter in $alphabet)
> <a href="xxx">$letter</a>
> #end

You are writing your anchor tag in its own line, so velocity will
render it that way. So you either write it:

#foreach ($letter in $alphabet)<a href="xxx">$letter</a> #end

or

#foreach ($letter in $alphabet)
<a href="xxx">$letter</a>##
#end

or use a macro:

#macro( text $string )$string#end
#foreach ($letter in $alphabet)#text(<a href="xxx">$letter</a>)#end

and with my proposed whitespace handling you will also be 
able to do nicely formatted vtl:

#foreach ($letter in $alphabet)
  #text(<a href="xxx">$letter</a>)
#end

> 
> Can I get the output to be:
> 
> A B C D E F G H I J K L ...

voilà


Note the neatest way to put up a list is:
#set( $sep = "" )
#foreach ($letter in $alphabet)
$sep<a href="xxx">$letter</a>##
#set( $sep = ", " )
#end
To get 
A, B, C, D, E, F, G, H, I, J, K, L, ..., Z


> 
> instead of
> A
> B
> C
> D
> E
> F
> G
> H
> ...
> 
> I could easily create a tool and stick it in the context to do it I
> suppose..but I was wondering if there was a way to do it with just vtl...
> 
> cheers...
> 
> Saimon

Hope this helps... 
And hope may people say:
+1 "yes we agree with Christoph's whitespace handling!"

William, the #text(...) macro would also help you on your link!
(you could call it #escapeURL or similar...)

-- 
:) Christoph Reck

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Re: horizontal foreach output

Posted by Mark de Reeper <ma...@yahoo.com>.

Just took a quick look at my source for this (typing from memory is never a
good idea), you may need to add some "" to the example to cast the result to a
String:

#set( $link = "#link('home')" )


Cheers

Mark

--- William Bajzek <w_...@yahoo.com> wrote:
> 
> --- Mark de Reeper <ma...@yahoo.com> wrote:
> > Another workaround to the macro problem is to do a set on the result and
> then
> > trim the string since it is a real String object by then.
> > 
> > From your example:
> > 
> > #set( $link = #link("home") )
> > <a href="$link.trim()&somethingelse=1">
> 
> I thought you couldn't use a macro inside another macro... I'll have to give
> it
> a try.
> 
> =====
> William Bajzek
> http://william.bajzek.com/
> 
> __________________________________________________
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> To unsubscribe, e-mail:  
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Re: horizontal foreach output

Posted by "Geir Magnusson Jr." <ge...@optonline.net>.

On 4/14/02 10:55 PM, "William Bajzek" <w_...@yahoo.com> wrote:

> 
> --- Mark de Reeper <ma...@yahoo.com> wrote:
>> Another workaround to the macro problem is to do a set on the result and then
>> trim the string since it is a real String object by then.
>> 
>> From your example:
>> 
>> #set( $link = #link("home") )
>> <a href="$link.trim()&somethingelse=1">
> 
> I thought you couldn't use a macro inside another macro... I'll have to give
> it
> a try.

You can nest VMs until the proverbial bovine reenter the domicile.

-- 
Geir Magnusson Jr.                                     geirm@optonline.net
System and Software Consulting
"He who throws mud only loses ground." - Fat Albert


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Re: horizontal foreach output

Posted by William Bajzek <w_...@yahoo.com>.

--- Mark de Reeper <ma...@yahoo.com> wrote:
> Another workaround to the macro problem is to do a set on the result and then
> trim the string since it is a real String object by then.
> 
> From your example:
> 
> #set( $link = #link("home") )
> <a href="$link.trim()&somethingelse=1">

I thought you couldn't use a macro inside another macro... I'll have to give it
a try.

=====
William Bajzek
http://william.bajzek.com/

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Re: horizontal foreach output

Posted by Mark de Reeper <ma...@yahoo.com>.

William,

Another workaround to the macro problem is to do a set on the result and then
trim the string since it is a real String object by then.

>From your example:

#set( $link = #link("home") )
<a href="$link.trim()&somethingelse=1">


Cheers

Mark

--- William Bajzek <w_...@yahoo.com> wrote:
> As far as I know, the best you can do is:
> 
> #foreach ($letter in $alphabet)<a href="xxx">$letter</a> #end
> 
> Which is not very readable. I'm more frustrated by the fact that something
> like...
> 
> #macro(link $page)
> http://www.blah.blah/servlet/something?page=$page
> #end
> 
> ...when used as such:
> 
> <a href="#link("home")&somethingelse=1">
> 
> sometimes produces:
> 
> <a href="http://www.blah.blah/servlet/something?page=$page
> &somethingelse=1">
> 
> or
> 
> <a href="
> http://www.blah.blah/servlet/something?page=$page
> &somethingelse=1">
> 
> which often causes problems with browsers.
> 
> I end up having to define the macro like this:
> 
> #macro(link $page)http://www.blah.blah/servlet/something?page=$page#end
> 
> which is a lot harder to read.
> 
> =====
> William Bajzek
> http://william.bajzek.com/
> 
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Tax Center - online filing with TurboTax
> http://taxes.yahoo.com/
> 
> --
> To unsubscribe, e-mail:  
> <ma...@jakarta.apache.org>
> For additional commands, e-mail:
> <ma...@jakarta.apache.org>
> 


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Re: horizontal foreach output

Posted by William Bajzek <w_...@yahoo.com>.

As far as I know, the best you can do is:

#foreach ($letter in $alphabet)<a href="xxx">$letter</a> #end

Which is not very readable. I'm more frustrated by the fact that something
like...

#macro(link $page)
http://www.blah.blah/servlet/something?page=$page
#end

...when used as such:

<a href="#link("home")&somethingelse=1">

sometimes produces:

<a href="http://www.blah.blah/servlet/something?page=$page
&somethingelse=1">

or

<a href="
http://www.blah.blah/servlet/something?page=$page
&somethingelse=1">

which often causes problems with browsers.

I end up having to define the macro like this:

#macro(link $page)http://www.blah.blah/servlet/something?page=$page#end

which is a lot harder to read.

=====
William Bajzek
http://william.bajzek.com/

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