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From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
To: Zsh Users <zsh-users@zsh.org>
Subject: Can $_ substitute $0 when nofunctionargzero
Date: Thu, 9 Jun 2016 18:44:21 +0200	[thread overview]
Message-ID: <CAKc7PVB4y+dw+0Ox76_YTrzwT1C9sRp2=iX1-JkbPQEUQqe77w@mail.gmail.com> (raw)

Hello,
this (one line):
mkdir -p pathcomponent; echo 'echo "0: $0, _: $_";' >
pathcomponent/sourceme; setopt nofunctionargzero; source
pathcomponent/sourceme

outputs:
0: /bin/zsh, _: pathcomponent/sourceme

So it looks like $_ can take back what nofunctionargzero takes away:
path to sourced file. Normally $0 is used in many plugins, making them
incompatible with nofunctionargzero. Z-sy-h has an explicit check for
this and does:

  echo "zsh-syntax-highlighting: error: not compatible with
NO_FUNCTION_ARGZERO" >&2

Can $_ take over? This would mean such scripts can be compatible with
emulate sh and ksh.

Best regards,
Sebastian Gniazdowski


             reply	other threads:[~2016-06-09 16:44 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-09 16:44 Sebastian Gniazdowski [this message]
2016-06-09 17:06 ` Sebastian Gniazdowski
2016-06-09 18:33   ` Sebastian Gniazdowski
2016-06-09 20:46     ` Bart Schaefer
2016-06-10  6:12       ` Sebastian Gniazdowski
2016-06-15 16:58         ` Sebastian Gniazdowski
2016-06-15 17:40           ` Bart Schaefer

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