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Wed, 17 Jan 2024 01:12:19 -0800 (PST) In-Reply-To: X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:278377 Archived-At: On Wed, Jan 17, 2024 at 3:29=E2=80=AFAM Richard Stallman wrot= e: > Could you tell me more concretely what this proposed feature would > look like in use? Perhaps with an example including context? Many examples in the patch, have you looked? > pcase does not use lambda lists, and neither does cond*. Pcase it extensible for any object structure the user may think of you can think of. This proposal is an extension. Here's an example (pcase some-mistery-object ((cl-arglist (42 &key a b c)) ; this proposal (message "Oh, it starts it 42 and has c=3D%s" c)) (`(,_ ,x ,_) (message "Boring three-element list with middle %s" x)) (`[,_ ,x ,_] (message "Fancy vector with middle %s" x)) ((franklinboing (nixneez)) ; my data-structure (message "This franklinboing has some nice nixneez %s=3D" nizneez))) Jo=C3=A3o