Re: Empty ""s in ARG in ${x:+ARG} expand to no words instead of the empty word if prepended/appended with space

From	Denys Vlasenko <dvlasenk@redhat.com>
Newsgroups	gnu.bash.bug
Subject	Re: Empty ""s in ARG in ${x:+ARG} expand to no words instead of the empty word if prepended/appended with space
Date	2018-07-20 16:46 +0200
Message-ID	<mailman.3902.1532097989.1292.bug-bash@gnu.org> (permalink)
References	<3d5b8d4b-b77e-2486-b45b-ca733e4d0ca0@redhat.com>

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On 07/20/2018 04:43 PM, Denys Vlasenko wrote:
> $  ${x:+"" }
> ^^^^^^^^^^^ prints nothing, bug?

Should be:
$ f ${x:+"" }

> $ f ${x:+"$e""$e"""}
> ^^^^^^^^^^^ prints nothing, bug?

Should be:
$ f ${x:+"$e""$e" ""}

sorry.

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Re: Empty ""s in ARG in ${x:+ARG} expand to no words instead of the empty word if prepended/appended with space Denys Vlasenko <dvlasenk@redhat.com> - 2018-07-20 16:46 +0200

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