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Wed, 06 Mar 2024 11:17:24 -0800 (PST) MIME-Version: 1.0 References: <20240304062914.kn6wquvgog3lefom@chazelas.org> <20240304193409.lv725ah6eifiazzx@chazelas.org> <20240305081859.r3qwiyduk2wgkdby@chazelas.org> <20240305193840.vvixetyn6vfnbir2@chazelas.org> <20240306182108.tf7qmtcdiykej4uv@chazelas.org> In-Reply-To: <20240306182108.tf7qmtcdiykej4uv@chazelas.org> From: Bart Schaefer Date: Wed, 6 Mar 2024 11:17:12 -0800 Message-ID: Subject: Re: [PATCH] Fix crash on unset-through-nameref To: Zsh hackers list Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Seq: 52695 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 Wed, Mar 6, 2024 at 10:21=E2=80=AFAM Stephane Chazelas wrote: > > 2024-03-05 15:16:25 -0800, Bart Schaefer: > > why do you never use -fc to prevent dotfiles from being read? > > I hadn't realised -f also skipped ~/.zshenv > > Should we also use > > #! /bin/zsh -f- > > shebangs in scripts? I usually assume scripts want ~/.zshenv for PATH values etc. As usual you should do what makes sense for the specific script. > My point is that if it means the: > > assign() { > typeset -n var=3D$1 > local value=3D$2 > var=3D$value > } > > doesn't work for > > assign var value > or > assign value something No, but as of the last patch it works for both of those cases if you use assign() { typeset -g $1 typeset -nu var=3D$1 local value=3D$2 var=3D$value } You don't have to futz with local parameter names, but you do have to make sure that the "typeset -g" declaration has a compatible type with the "var=3D$value" at the end. The "typeset -nu" declaration can't know what you're going to assign later, so it doesn't make sense for it to try to magically perform the "typeset -g". We don't have a "typeless and waiting for assignment" parameter type.