From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.devel Subject: Re: first-is (3 versions, Elisp hangup) (was: Re: we need *modularity* [last problem]) Date: Fri, 16 Aug 2024 11:53:19 +0200 Message-ID: <874j7k4wvk.fsf@dataswamp.org> References: <864j7qhup6.fsf@gnu.org> <87a5hi0yts.fsf@valhala.localdomain> <86y152ge0b.fsf@gnu.org> <86jzgjfwqp.fsf@gnu.org> <87sev78arx.fsf@gmail.com> <86le0z89u1.fsf@gnu.org> <87o75v87n1.fsf@gmail.com> <86frr786k7.fsf@gnu.org> <861q2q8e18.fsf@gnu.org> <87frr53sa8.fsf_-_@dataswamp.org> <87bk1s4xpg.fsf_-_@dataswamp.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="35751"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: emacs-devel@gnu.org Cancel-Lock: sha1:PYWe41vsfpOyuzJtQQ3/s3XmqS4= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Aug 16 12:47:03 2024 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1seuU3-00098J-6K for ged-emacs-devel@m.gmane-mx.org; Fri, 16 Aug 2024 12:47:03 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1seuTf-0000RP-Kz; Fri, 16 Aug 2024 06:46:39 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1seteG-0001mv-5H for emacs-devel@gnu.org; Fri, 16 Aug 2024 05:53:32 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1seteC-0008C1-Lt for emacs-devel@gnu.org; Fri, 16 Aug 2024 05:53:31 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1sete9-0004jz-RD for emacs-devel@gnu.org; Fri, 16 Aug 2024 11:53:25 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: emacs-devel@gnu.org In-Reply-To: <87bk1s4xpg.fsf_-_@dataswamp.org> (Emanuel Berg's message of "Fri, 16 Aug 2024 11:35:23 +0200") Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=ged-emacs-devel@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 16 Aug 2024 06:46:36 -0400 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." 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:322805 Archived-At: Oh, no! ;; (elpat--first-is "" "same") ; t ;; (elpat--first-is-2 "" "same") ; nil ;; (elpat--first-is-3 "" "same") ; nil ;; (elpat--first-is "s" "") ; nil ;; (elpat--first-is-2 "s" "") ; crash ;; (elpat--first-is-3 "s" "") ; crash ;; (elpat--first-is "" "") ; t ;; (elpat--first-is-2 "" "") ; crash ;; (elpat--first-is-3 "" "") ; crash But hang on, I have some thing for that as well. Here: (defun string-data-p (str) (and (stringp str) (not (string= str "")) str)) Heh, see where this is going? It is clear to me that Elisp isn't a language designed or optimized for devel speed and productivity. Lisp could be (I _think_, much more so anyway) - but I guess it won't happen. > (defun elpat--first-is-3 (s str) > (and (stringp s) > (stringp str) > (string= s (char-to-string (seq-first str))))) > > (defun elpat--first-is-2 (s str) > (and (stringp s) > (stringp str) > (string= s (substring str 0 1)))) > > (defun elpat--first-is (s str) > (and (cl-every #'stringp (list s str)) > #1=(string-match s str) > (zerop #1#))) > > ;; (elpat--first-is "s" "same") > ;; (elpat--first-is-2 "s" "same") > ;; (elpat--first-is-3 "s" "same") > > ;; (elpat--first-is "s" "lame") > ;; (elpat--first-is-2 "s" "lame") > ;; (elpat--first-is-3 "s" "lame") -- underground experts united https://dataswamp.org/~incal