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Sun, 22 Jan 2023 11:31:43 -0800 (PST) MIME-Version: 1.0 References: <0dc71450-d082-93da-52f8-d4e6b97199af@eastlink.ca> <378fcf6a-edb0-885b-3d08-9ebee33bb911@eastlink.ca> <3885c637-c56f-2bb7-9a89-02009254ed75@eastlink.ca> <3b93f68e-d090-15c0-c15e-a3d09d702f76@eastlink.ca> <07323898-9985-4e9f-8b54-c08fd8510fe8@app.fastmail.com> <08102bc6-b331-504f-fcd5-28fa3cdb0e2f@eastlink.ca> In-Reply-To: From: Roman Perepelitsa Date: Sun, 22 Jan 2023 20:31:31 +0100 Message-ID: Subject: Re: path PATH To: Bart Schaefer Cc: Ray Andrews , zsh-users@zsh.org Content-Type: text/plain; charset="UTF-8" X-Seq: 28716 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 Sun, Jan 22, 2023 at 8:20 PM Bart Schaefer wrote: > > On Sun, Jan 22, 2023 at 4:30 AM Roman Perepelitsa > wrote: > > > > describe-param() { > > emulate -L zsh > > [[ ARGC -eq 1 && -n $1 ]] || return > > set -- "$@" ${(Pt)1} > > [[ -$2- == *-hide-* ]] && return 1 > > I'm curious why you chose to do this? The "hide" attribute means that > a local does not preserve semantics of a special global, not that it's > name is invisible. That's a brainfart on my part. I even know what "hide" means but somehow I've coded it as if it meant something else. > > print -rn -- "$2 ${(q-)1}" > > if [[ -$2- == *-hideval-* ]]; then > > print > > I'd guess that Ray would prefer to see the value even if it's normally > hidden by "set" but this is more consistent. I mainly added this after seeing just how much output there is if you print values of all parameters. Made me appreciate the fact that `typeset` doesn't print those. > > else > > set -- "$@" ${(M)2:#(array|association)(|-*)} > > print -r -- "=${3:+( }${(j: :)${(@qqq)${(@kv)${(@P)1}}}}${3:+ )}" > > If you leave off the "${(q-)1}" in the earlier "print -rn", I think this is just > typeset -m ${(q)1} Oh, I only now realized that the output of `typeset -m` isn't the same as of `typeset -p` (I now see that you've pointed this out in earlier emails but I missed it). This is definitely an improvement to the code but makes me wonder whether it's a good thing that typeset behaves this way. Intuitively, I expected that `typeset -m pat` is equivalent to `typeset -p [params]..` where `[params]..` is the names of all parameters matching `pat`. > (where I'm not even sure the (q) is necessary). I think it should be (b). > describe-params () { > emulate -L zsh -o extendedglob > zmodload zsh/parameter > set -- ${(ok)parameters[(I)${~${(j.|.)@}}]} > while ((ARGC)) > do > print -rn -- "${parameters[$1]} " > if [[ -${parameters[$1]}- = *-hideval-* ]] > then > print -r -- ${(q-)1} > else > typeset -m ${(q)1} > fi > shift > done > } This looks great! Simpler and more powerful than my version. Roman.