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: Unhelpful text in C-h v search-default-mode Date: Fri, 29 Dec 2023 08:21:51 +0100 Message-ID: <87il4hpj74.fsf@dataswamp.org> References: <86frzlv6fy.fsf@mail.linkov.net> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="33106"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: emacs-devel@gnu.org Cancel-Lock: sha1:7qaOplsxPdxWYUJg66NaHPzExJc= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Dec 29 08:52:52 2023 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 1rJ7fo-0008NI-Ef for ged-emacs-devel@m.gmane-mx.org; Fri, 29 Dec 2023 08:52:52 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rJ7fc-0002Qj-Fa; Fri, 29 Dec 2023 02:52:40 -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 1rJ7Bz-0006AJ-QJ for emacs-devel@gnu.org; Fri, 29 Dec 2023 02:22:04 -0500 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 1rJ7Bw-0001mc-Hk for emacs-devel@gnu.org; Fri, 29 Dec 2023 02:22:02 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1rJ7Bu-0000XM-1a for emacs-devel@gnu.org; Fri, 29 Dec 2023 08:21:58 +0100 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: emacs-devel@gnu.org 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=0.249, 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, 29 Dec 2023 02:52:38 -0500 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:314315 Archived-At: Juri Linkov wrote: >> In a recent master branch Emacs, (not with -Q), from an info buffer, I >> did C-h v search-default-mode. The text printed in *Help* included this: >> >> Its value is >> # >> Original value was nil >> Local in buffer *info*<3>; global value is nil >> >> .. This is quite frankly entirely unhelpful; it gives no way to find out >> what the lambda is, in particular, no way to get to its source code. It >> isn't even possible to disassemble the function. > > Another example: > > 0. emacs -Q > 1. M-x list-timers > > * 0.1s t show-paren-function > * 0.5s t # > > I wonder how users are supposed to know what function it is? > Searching by the delay number 0.5 reveals this lambda comes > from > > (setq jit-lock-context-timer > (run-with-idle-timer jit-lock-context-time t > (lambda () > (unless jit-lock--antiblink-grace-timer > (jit-lock-context-fontify))))) One will know it by not using an anonymous function (a lambda) but making a proper function and giving it a descriptive name, as you see with `show-paren-function' in your own example :) -- underground experts united https://dataswamp.org/~incal