From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: [External] : Any packages using ThingAtPointPlus for activation? Date: Tue, 3 Jan 2023 15:41:50 +0300 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="7792"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.2.9+54 (af2080d) (2022-11-21) Cc: Help GNU Emacs To: Drew Adams Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Jan 03 14:22:42 2023 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 1pChFa-0001ok-De for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 03 Jan 2023 14:22:42 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pChEB-0007XW-9P; Tue, 03 Jan 2023 08:21:17 -0500 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 1pChDN-0007Ij-VL for help-gnu-emacs@gnu.org; Tue, 03 Jan 2023 08:20:45 -0500 Original-Received: from stw1.rcdrun.com ([217.170.207.13]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pChD3-0002cb-SK for help-gnu-emacs@gnu.org; Tue, 03 Jan 2023 08:20:11 -0500 Original-Received: from localhost ([::ffff:197.239.13.208]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 0000000000055DB9.0000000063B42B5F.00007D02; Tue, 03 Jan 2023 06:19:27 -0700 Mail-Followup-To: Drew Adams , Help GNU Emacs Content-Disposition: inline In-Reply-To: Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:142106 Archived-At: * Drew Adams [2023-01-02 20:10]: > > (defun hyperscope-action-button (&optional prefix) > > (interactive "p") > > (cond ((thing-at-point 'uuid) (rcd-db-uuid-action (thing-at-point > > 'uuid))) > > I suggest you don't invoke `thing-at-point' multiple > times needlessly. Use `let', to do the work only once. I would rather like to have universal thing at point that would identify all possible elements at once and give me list of it. I understand repetitions, I may consider let later, maybe not. It is not matter of speed now, neither style. It is thinkering stage. > Don't use (`thing-at-point 'symbol) for this. > Perhaps unfortunately, Emacs has that return text at > point that has symbol syntax - in the current mode. > It doesn't return a Lisp symbol name at point > (unless you're in `emacs-lisp-mode'). > Use `symbol-at-point' (or, if you want only currently > defined Elisp symbols, `tap-symbol-at-point'). They > return a Lisp symbol - no need to intern. Alright, but I would like to recognize only symbols which are defined, like functions and variables and not symbols which are not defined. How do I recognize if function is defined? I use (fboundp 'system-move-file-to-trash) ➜ t How I recognize if variable is one variable defined anywhere globally? Judging by the inspection of command {C-h v} it is following: - I should use (boundp SYMBOL) to recognize if it is variable > If you want, instead of doing such a `cond' here, > just define functions `lisp-function-at-point' and > `lisp-var-at-point'. Then you can use those anytime > you like, not just here. The code and Commentary in > `thingatpt+.el' shows you how to do that. E.g., > > (defun lisp-function-at-point > "Return a Lisp function at point, or nil." > (tap-form-at-point 'symbol 'fboundp)) > > `tap-form-at-point' (and vanilla `form-at-point') > returns a Lisp object corresponding the textual > THING that's its first object, provided that that > Lisp object satisfies the PREDICATE that is its > second object. That is great. > Bookmarks do that - you can define a bookmark type > for "jumping" to anything. That's the original > purpose of Emacs bookmarks. And "jump" can mean > whatever you like. You can use thing-at-point > to get the name of a thing of a particular kind at > point, and then jump to it using a bookmark. Does it mean I would need to bookmark it first before using a bookmark? -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/