From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Yuri Khan Newsgroups: gmane.emacs.devel Subject: Re: cond* vs pcase Date: Wed, 7 Feb 2024 12:32:25 +0700 Message-ID: References: <87il32iwmm.fsf@posteo.net> <87o7cttu4l.fsf@posteo.net> <87o7cts9nc.fsf@posteo.net> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="10947"; mail-complaints-to="usenet@ciao.gmane.io" Cc: "Alfred M. 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:315964 Archived-At: On Wed, 7 Feb 2024 at 01:58, Philip Kaludercic wrote: > Please don't be dishonest; My question was why cl-case was more > appropriate than pcase, where both are macros that boil down to simpler > primitives. The design principle that Alfred alludes to is known as the [Rule of Least Power][0]. That advocates using the least powerful construct that still does the job. Like specialized mapcar instead of a general-purpose while loop, or an http client instead of coding directly against tcp sockets. [0]: https://en.wikipedia.org/wiki/Rule_of_least_power