Is there any way to have velocity programmatically print a newlin e?

[Jason Weinstein <JW...@SeeBeyond.com>]

Is there any way to have velocity programmatically print a newline? I want
to be able to inject newlines (see below).
 
Example:
 
#macro (apply1 $retval $list $pattern $delim $x)
#set ($temp = "")
##
#foreach ($elem in $list)
#set ($x = $elem)
#set ($temp = "$temp$pattern")
#set ($temp = "$temp$delim")
#end
##
#set ($retval = $temp)
#end
 
#apply1 ($retval ["foo", "bar", "baz", "qux"] "$x" "\n" $x)
$retval
 
Get:
foo\nbar\nbaz\nqux\n
 
Want:
foo
bar
baz
qux

Re: Is there any way to have velocity programmatically print a newlin e?

[Ch...@dlr.de]

You can use the poor-man's solution with macros:

#macro( NL )##leave the following empty line to emit the \n

#end

and then set your delimeter using the interpolated output:
#apply1 ($retval ["foo", "bar", "baz", "qux"] "$x" "#NL()" $x)
                                                     ^^^^^
Or to avoid having to call the macro every time...:
#set( $NL = "#NL()" )

The alternative, as Geir already stated, is to use some character
encoding/decoding tool to programatically generate the NL
character, e.g.:
#set( $NL = $decode("%0a") )

-- 
:) Christoph Reck

Jason Weinstein wrote:
> Is there any way to have velocity programmatically print a newline? I want
> to be able to inject newlines (see below).
>  
> Example:
>  
> #macro (apply1 $retval $list $pattern $delim $x)
> #set ($temp = "")
> ##
> #foreach ($elem in $list)
> #set ($x = $elem)
> #set ($temp = "$temp$pattern")
> #set ($temp = "$temp$delim")
> #end
> ##
> #set ($retval = $temp)
> #end
>  
> #apply1 ($retval ["foo", "bar", "baz", "qux"] "$x" "\n" $x)
> $retval
>  
> Get:
> foo\nbar\nbaz\nqux\n
>  
> Want:
> foo
> bar
> baz
> qux
> 

-- 
:) Christoph Reck


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Re: Is there any way to have velocity programmatically print a newlin e?

["Geir Magnusson Jr." <ge...@optonline.net>]

On 8/29/02 3:45 PM, "Jason Weinstein" <JW...@SeeBeyond.com> wrote:

> Is there any way to have velocity programmatically print a newline? I want
> to be able to inject newlines (see below).
> 
> Example:
> 
> #macro (apply1 $retval $list $pattern $delim $x)
> #set ($temp = "")
> ##
> #foreach ($elem in $list)
> #set ($x = $elem)
> #set ($temp = "$temp$pattern")
> #set ($temp = "$temp$delim")
> #end
> ##
> #set ($retval = $temp)
> #end
> 
> #apply1 ($retval ["foo", "bar", "baz", "qux"] "$x" "\n" $x)
> $retval
> 
> Get:
> foo\nbar\nbaz\nqux\n
> 
> Want:
> foo
> bar
> baz
> qux
> 

It depends what the output is.  HTML is generally newline agnostic.  If
text, then you could put a "\n" from java in the context and use that, or a
character generating tool for more general use...

-- 
Geir Magnusson Jr. 
Research & Development, Adeptra Inc.
geirm@adeptra.com
+1-203-247-1713



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