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Sat, 10 Feb 2024 21:06:34 -0800 (PST) MIME-Version: 1.0 Received: by 2002:a05:7208:2212:b0:7d:6680:bb4f with HTTP; Sat, 10 Feb 2024 21:06:33 -0800 (PST) In-Reply-To: References: <205735b2-11e1-4b5e-baa2-7418753f591f@eastlink.ca> <20240210204803.2ogpi5h752uzwf6e@chazelas.org> From: Mikael Magnusson Date: Sun, 11 Feb 2024 06:06:33 +0100 Message-ID: Subject: Re: Slurping a file (was: more spllitting travails) To: Bart Schaefer Cc: Zsh Users Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Seq: 29656 Archived-At: X-Loop: zsh-users@zsh.org Errors-To: zsh-users-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-users-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: On 2/11/24, Bart Schaefer wrote: > On Sat, Feb 10, 2024 at 2:48=E2=80=AFPM Stephane Chazelas > wrote: >> >> IMO, it would be more useful if the result was returned in the >> variable whose name was given as argument (defaulting to REPLY >> if none was given like for read or sysread). > > Could also read a file provided by name as an argument instead of only > reading stdin, but I elected to commit the most straightforward > version. > >> And would be better if upon error the returned variable >> contained either what was successfully read or nothing (like >> read but unlikely sysread). > > I had the impression this slurp-er was intended to work like examples > from other languages, which do not have "read"-like behavior. > >> zslurp() { >> emulate -L zsh -o no_multibyte >> typeset -n _zslurp_var=3D${1-REPLY} > > Is there really any reason to prefix the locals with "_zslurp_" ? > That's good practice if the function might call other code that's less > careful about it's names and scoping, or if you need to the variable > to become global, but nothing like that occurs here. I guess it makes this outcome less likely, % zslurp _zslurp_var zslurp:2: _zslurp_var: invalid self reference Is there any way to avoid it completely? --=20 Mikael Magnusson