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.help Subject: Re: Better ways to inspect text properties? Date: Thu, 27 Oct 2022 17:05:38 +0200 Message-ID: <87ilk5johp.fsf@dataswamp.org> References: <83h6zpn7i0.fsf@gnu.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="34848"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:7chfcjMTOK+l8Fh0ULSuwz5usOc= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Oct 28 16:17:50 2022 Return-path: Envelope-to: geh-help-gnu-emacs@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 1ooQBC-0008sx-JU for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 28 Oct 2022 16:17:50 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ooQB1-0006Ur-Py; Fri, 28 Oct 2022 10:17:39 -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 1oo4S6-0003wz-Gl for help-gnu-emacs@gnu.org; Thu, 27 Oct 2022 11:05:50 -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 1oo4S4-0000yZ-Ks for help-gnu-emacs@gnu.org; Thu, 27 Oct 2022 11:05:50 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1oo4S2-00031B-Sg for help-gnu-emacs@gnu.org; Thu, 27 Oct 2022 17:05:46 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@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=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 28 Oct 2022 10:17:38 -0400 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: "help-gnu-emacs" Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:140478 Archived-At: Eduardo Ochs wrote: > (defun ee-string-intervals (str) > "This is similar to `object-intervals', but uses another output format." > (let ((pair< (lambda (pair1 pair2) > (string< (symbol-name (car pair1)) > (symbol-name (car pair2)))))) > (cl-loop for (b e props) in (object-intervals str) > for s = (substring-no-properties str b e) > for pairs = (cl-loop for (x y) on props by 'cddr > collect (list x y)) > collect (list s (sort pairs pair<))))) A Common Lisp-style loop with three clauses - the first one a for loop, the second one an assignment to a variable, and the third one an assignment to a variable the result of a for loop - which makes a collection based on certain aspects as explicitely extracted - and then it is all sorted according to a user-defined anonymous function to impose a total order. Hm ... maybe we can use this piece of code in our next book aimed at absolute beginners, maybe to replace the initial "hello world" example? -- underground experts united https://dataswamp.org/~incal