From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.bugs Subject: bug#64656: 29.0.91; Doc of minibuffer histories and completing-read - automatic addition of completions to DEFAULT list Date: Sat, 15 Jul 2023 23:35:20 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29633"; mail-complaints-to="usenet@ciao.gmane.io" To: 64656@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Jul 16 01:36:18 2023 Return-path: Envelope-to: geb-bug-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 1qKooE-0007VV-3Q for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 16 Jul 2023 01:36:18 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qKoo1-0002p5-5V; 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envelope-from=drew.adams@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action 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:265256 Archived-At: It seems to me that the doc, including in the Elisp manual, doesn't make clear that, by default, `completing-read' automatically adds the list of all completions provided by the completion table to the list of defaults, just after the default value. That is, by default, it calls `minibuffer-default-add-completions'. This is not obvious from reading the docs. For example, it's not obvious that if you use `C-h v' and then `M-p', repeating `M-p, you get the symbols that are variables, one by one, inserted into the minibuffer. How so? Because by default variable `minibuffer-default-add-function' is `minibuffer-default-add-completions'. Again, none of this is obvious. To find it out, a user needs to check what `M-p' is bound to, then check the source code for that function, and then the source code or the doc string of function `goto-history-element', which it calls. In sum, important user-visible behavior isn't described in the manual or the "top-level", most-relevant doc strings (e.g. `completing-read'). This is a request to, somehow, make this default behavior more apparent in the doc. Thx. In GNU Emacs 29.0.91 (build 2, x86_64-w64-mingw32) of 2023-05-14 built on AVALON Windowing system distributor 'Microsoft Corp.', version 10.0.19045 System Description: Microsoft Windows 10 Pro (v10.0.2009.19045.3086) Configured using: 'configure --with-modules --without-dbus --with-native-compilation --without-compress-install --with-tree-sitter CFLAGS=3D-O2' Configured features: ACL GIF GMP GNUTLS HARFBUZZ JPEG JSON LCMS2 LIBXML2 MODULES NATIVE_COMP NOTIFY W32NOTIFY PDUMPER PNG RSVG SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP XPM ZLIB (NATIVE_COMP present but libgccjit not available)