Re: (s,:,) made right ("" is also an element)

[Michal Politowski <mpol@xxxxxxxxxxxxxxxxxxx>]

On Fri, 13 Mar 2015 11:12:08 +0100, Marc Chantreux wrote:
> hello, 
> 
> say i have
> 
>     PATH="/usr/bin::/bin" 
>     print -l ${(s,:,)PATH}
>     foo=( ${(s,:,)PATH} )
>     print $#foo
> 
> because i have an empty element (which is also an element)
> 
> i got
> 
>     /usr/bin
>     /bin
>     2
> 
> 
> i expect
> 
>     /usr/bin
> 
>     /bin
>     3 
> 
> does someone know how to fix zsh?

print -l "${(@s,:,)PATH}"
foo=("${(@s,:,)PATH)")

It's described in the manual:
              For historical reasons, the usual behaviour that empty
              array elements are retained inside double quotes is
              disabled for arrays generated by splitting; hence the
              following:

                     line="one::three"
                     print -l "${(s.:.)line}"

              produces two lines of output for one and three and elides
              the empty field.  To override this behaviour, supply the
              "(@)" flag as well, i.e. "${(@s.:.)line}".

-- 
Michał Politowski
Talking has been known to lead to communication if practiced carelessly.