Re: joining array elements

[Wataru Kagawa <wkagawa@jota.gsc.riken.go.jp>]

I think my example was unclear (Sorry).  Basically, I wanted an  
output that looks like,

David
Matt
Bob[return]Sara[return]Tim

I can get it with,
foo=$( printf '%s\n' David Matt ${(j:[return]:)usernames} )
with the 'globsubst' option turned off.  However, I was trying to  
incorporate your tip, because I wanted to keep that option turned on.

foo=$( printf '%s\n' David Matt ${(j:[return]:)~~usernames} )
gives me no output (with the 'nullglob' option set).

Thanks.

On 2006/01/12, at 20:54, Peter Stephenson wrote:

> Wataru Kagawa wrote:
>> Hi Peter,
>>
>> Thank you for the tip.  I would like to place the expansion into a
>> variable, however, I am having a trouble.
>>
>> % usernames=( Bob Sara Tim )
>> % print -R ${(j:[return]:)~~usernames}
>> Bob[return]Sara[return]Tim
>>
>> However,
>>
>> % foo=$( printf '%s\n' David Matt ${(j:[return]:)~~usernames} )
>> % echo $foo
>
> What effect are you trying to achieve?  The command you show does
> exactly what I expect it to.  Do you mean you want David and Matt  
> added
> in the same way and the result put in foo?
>
> usernames2=(David Matt $usernames)
> foo=${(j:[return]:)~~usernames2}
>
> Or do you mean you want the same effect as you get when outputting  
> David
> and Matt using printf, but with all the names, so that foo ends up  
> being
> joined with newlines?
>
> foo=${(F)usernames2}
>
> -- 
> Peter Stephenson <pws@csr.com>                  Software Engineer
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