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Date: Wed, 13 Apr 2016 09:41:52 +0100
From: Peter Stephenson <p.stephenson@samsung.com>
To: zsh-users@zsh.org
Subject: Re: Calling interactive command inside widget
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On Wed, 13 Apr 2016 00:58:04 +0300
Evgeny Zajcev <lg.zevlg@gmail.com> wrote:
> I'v created simple widget like:
>=20
>   just-run-man () {
>       man man
>   }
>   zle -N just-run-man
>   bindkey "=1B^[h" just-run-man
>=20
> And also got
>=20
>   Missing filename ("less --help" for help)

There's nothing much to go wrong in this ultra-simple example.  I would
suspect it's a problem not visible here, e.g. something associated with
less like the LESSOPEN variable has gone haywire.  To investigate, try
setting PAGER=3Dmore and see if that works.

pws