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Mon, 27 Feb 2023 21:01:01 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Bart Schaefer Date: Mon, 27 Feb 2023 21:00:49 -0800 Message-ID: Subject: Re: expanding nameref target? To: Mikael Magnusson Cc: zsh workers Content-Type: text/plain; charset="UTF-8" X-Seq: 51487 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: On Tue, Feb 21, 2023 at 7:59 AM Bart Schaefer wrote: > > On Tue, Feb 21, 2023 at 5:08 AM Mikael Magnusson wrote: > > > > Is there a way to expand a nameref to its target parameter without > > removing the nameref attribute with +n first? > > Not yet. Still working on that. So ... opinions solicited before I send a patch. In ksh emulation (and history disabled), I have this working: % typeset -n foo=bar % echo ${!foo} bar However, that's pretty clumsy because of history expansion, so I'm proposing the following for zsh native mode: % typeset -n foo=bar % echo ${(?)foo} bar As an extension (more by accident than by design but possibly useful): % echo ${(?)options} zsh/parameter This only works for autoloaded parameters that are not yet loaded. For similarity with ksh mode, ${(!)foo} is a synonym for (?), but that means we can't use (!) for anything else. Is that a problem? I've also made (?) [or (!)] mutually exclusive with (k) and (v). Thoughts?