* (s,:,) made right ("" is also an element)
@ 2015-03-13 10:12 Marc Chantreux
2015-03-13 10:42 ` Michal Politowski
0 siblings, 1 reply; 3+ messages in thread
From: Marc Chantreux @ 2015-03-13 10:12 UTC (permalink / raw)
To: zsh-users
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?
regards
--
Marc Chantreux (eiro on github and freenode)
http://eiro.github.com/
http://eiro.github.com/atom.xml
"Don't believe everything you read on the Internet"
-- Abraham Lincoln
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: (s,:,) made right ("" is also an element)
2015-03-13 10:12 (s,:,) made right ("" is also an element) Marc Chantreux
@ 2015-03-13 10:42 ` Michal Politowski
2015-03-13 14:16 ` Marc Chantreux
0 siblings, 1 reply; 3+ messages in thread
From: Michal Politowski @ 2015-03-13 10:42 UTC (permalink / raw)
To: zsh-users
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.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-03-13 10:12 (s,:,) made right ("" is also an element) Marc Chantreux
2015-03-13 10:42 ` Michal Politowski
2015-03-13 14:16 ` Marc Chantreux
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