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Wed, 14 Apr 2021 10:09:52 -0400 (EDT) Received: by tarpaulin.shahaf.local2 (Postfix, from userid 1000) id 4FL49V1YJ4z43s; Wed, 14 Apr 2021 14:09:50 +0000 (UTC) Date: Wed, 14 Apr 2021 14:09:50 +0000 From: Daniel Shahaf To: Marlon Cc: Zsh hackers list Subject: sysexits.h codes? (was: Re: [RFC][PATCH] `newuser` prompt theme) Message-ID: <20210414140950.GH3882@tarpaulin.shahaf.local2> References: <7E71FA83-356E-448B-9726-02DF3FF5BD14@gmail.com> <873D08A9-F321-474A-8440-CCE7DCCBA529@gmail.com> <20210414120551.GA3882@tarpaulin.shahaf.local2> <6CEA4F3E-9A64-44E1-9121-FA9D5E053AB5@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <6CEA4F3E-9A64-44E1-9121-FA9D5E053AB5@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Seq: 48572 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: > >> @@ -0,0 +1,197 @@ > >> +readonly -ga sysexits=( > >> + USAGE > > ⋮ > >> + CONFIG > > > > Two interrelated scripts on zsh.org hardcode these constants too. > > I wonder if we should provide these constants in a standard autoloaded > > function or preset variable. > > A preset variable would be great. In C code, you can get the names and values from `sysexits.h`, which is available in both GNU and BSD. An associative array mapping symbolic names to integers? Just those available on the target system, or? > >> + emulate -L zsh > >> + > >> + psvar[1]= > >> + case $exitstatus in > >> + <128-> ) > >> + psvar[1]="SIG$signals[exitstatus-127] " > >> + ;| > >> + <64-78> ) > >> + psvar[1]="EX_$sysexits[exitstatus-63] " > > > > Nice, I might adopt this. Or, come to think of it, I might teach > > PRINT_EXIT_VALUE to do this ☺ > > It would be great if, besides printing the name, it could also add a > short description of what the exit code actually means. Something like > “SIGPIPE (140): write on a pipe with no reader”. There's precedent to work with: % =pwd | true zsh: broken pipe =pwd I suppose the default should be about this level of verbosity. Other degrees of verbosity could be considered.