From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Heime Newsgroups: gmane.emacs.help Subject: Re: Listing headings in dedicated buffer with imenu. Date: Tue, 30 Jul 2024 15:59:58 +0000 Message-ID: References: <87ed7ctudw.fsf@gmx.net> <87a5i0tro1.fsf@gmx.net> <871q3ctqsb.fsf@gmx.net> <87wml4s9p7.fsf@gmx.net> <87wml31fdy.fsf@gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="14767"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Heime via Users list for the GNU Emacs text editor To: Stephen Berman Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Jul 30 18:02:11 2024 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 1sYpIg-0003fQ-Ob for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 30 Jul 2024 18:02:10 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sYpGr-0000Gc-6a; 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envelope-from=heimeborgia@protonmail.com; helo=mail-4027.protonmail.ch 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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:147452 Archived-At: On Tuesday, July 30th, 2024 at 1:02 AM, Stephen Berman wrote: > [I sent this yesterday but it hasn't shown up in the list, so > resending.] >=20 > On Mon, 29 Jul 2024 11:53:07 +0000 Heime heimeborgia@protonmail.com wrote= : >=20 > > On Monday, July 29th, 2024 at 11:45 PM, Stephen Berman > > stephen.berman@gmx.net wrote: > >=20 > > > On Mon, 29 Jul 2024 11:29:07 +0000 Heime heimeborgia@protonmail.com w= rote: > > >=20 > > > > Sent with Proton Mail secure email. > > > >=20 > > > > On Monday, July 29th, 2024 at 10:51 PM, Stephen Berman > > > > stephen.berman@gmx.net wrote: > > > >=20 > > > > > On Mon, 29 Jul 2024 10:41:08 +0000 Heime heimeborgia@protonmail.c= om wrote: > > > > >=20 > > > > > > Sent with Proton Mail secure email. > > > > > >=20 > > > > > > On Monday, July 29th, 2024 at 10:32 PM, Stephen Berman > > > > > > stephen.berman@gmx.net wrote: > > > > > >=20 > > > > > > > On Mon, 29 Jul 2024 10:26:22 +0000 Heime heimeborgia@protonma= il.com wrote: > > > > > > >=20 > > > > > > > > Sent with Proton Mail secure email. > > > > > > > >=20 > > > > > > > > On Monday, July 29th, 2024 at 9:33 PM, Stephen Berman > > > > > > > > stephen.berman@gmx.net wrote: > > > > > > > >=20 > > > > > > > > > On Mon, 29 Jul 2024 08:48:38 +0000 Heime > > > > > > > > > heimeborgia@protonmail.com wrote: > > > > > > > > >=20 > > > > > > > > > > I wish to list headings in a dedicated buffer with imen= u. > > > > > > > > > > The listing should be in the order in which headings oc= cur > > > > > > > > > > in the buffer. > > > > > > > > > >=20 > > > > > > > > > > Have done the following, but the buffer ends up empty. > > > > > > > > > >=20 > > > > > > > > > > (defun vodil-imenu-bfh () > > > > > > > > > > "Insert imenu headings in order in a dedicated buffer." > > > > > > > > > > (interactive) > > > > > > > > > >=20 > > > > > > > > > > (let ((imenu-items (imenu--make-index-alist t)) > > > > > > > > > > (buffer-name "Imenu Headings")) > > > > > > > > > > (with-current-buffer (get-buffer-create buffer-name) > > > > > > > > > > (erase-buffer) > > > > > > > > > > (dolist (item imenu-items) > > > > > > > > > > (let ((name (car item)) > > > > > > > > > > (position (cdr item))) > > > > > > > > > > (when (and (stringp name) (number-or-marker-p position)= ) > > > > > > > > > > (insert (format "%s\n" name))))) > > > > > > > > > > (goto-char (point-min))) > > > > > > > > > > (pop-to-buffer buffer-name))) > > > > > > > > >=20 > > > > > > > > > It works for me, as long as imenu.el is loaded. > > > > > > > > >=20 > > > > > > > > > Steve Berman > > > > > > > >=20 > > > > > > > > What would I need to load it ? > > > > > > >=20 > > > > > > > One way is this: > > > > > > >=20 > > > > > > > (defun vodil-imenu-bfh () > > > > > > > "Insert imenu headings in order in a dedicated buffer." > > > > > > > (interactive) > > > > > > > (eval-when-compile > > > > > > > (require 'imenu)) > > > > > > > (let ((imenu-items (imenu--make-index-alist t)) > > > > > > > (buffer-name "Imenu Headings")) > > > > > > > (with-current-buffer (get-buffer-create buffer-name) > > > > > > > (erase-buffer) > > > > > > > (dolist (item imenu-items) > > > > > > > (let ((name (car item)) > > > > > > > (position (cdr item))) > > > > > > > (when (and (stringp name) (number-or-marker-p position)) > > > > > > > (insert (format "%s\n" name))))) > > > > > > > (goto-char (point-min))) > > > > > > > (pop-to-buffer buffer-name))) > > > > > > >=20 > > > > > > > Steve Berman > > > > > >=20 > > > > > > Right. I have this function that I run. Running vodil-imenu-bfh > > > > > > after executing vodil-imenu-expr gives me rescan in the buffer. > > > > > >=20 > > > > > > (defun vodil-imenu-expr () > > > > > > "Set up `imenu` to show a list of functions in the current buff= er." > > > > > >=20 > > > > > > (interactive) > > > > > >=20 > > > > > > (setq imenu-generic-expression > > > > > > '( ("headings" "^;;;\\s-+\\([HM][[:digit:]]\\)\\s-+\\(.*\\)" 2)= )) > > > > > >=20 > > > > > > (imenu-add-to-menubar "Iml") > > > > > > (imenu--make-index-alist t) > > > > > > (call-interactively 'imenu)) > > > > >=20 > > > > > What were the contents of the current buffer when you executed > > > > > vodil-imenu-expr? > > > > >=20 > > > > > Steve Berman > > > >=20 > > > > I had an elisp file. I ran "M-x vodil-imenu-expr" when in the file = to get > > > > the correct imenu entries. But executing "M-x vodil-imenu-bfh" afte= r that > > > > I end up with the buffer "Imenu Headings" having only rescan in it. > > >=20 > > > When I test your code on one of the built-in Emacs Lisp libraries, > > > e.g. avoid.el, then, on invoking vodil-imenu-expr, I get prompted for= an > > > Index item, and typing TAB, the Completions buffer pops up containing > > > Rescan and nil. I then type C-g and then M-x vodil-imenu-bfh, and the > > > Imenu Headings buffer pops up containing just Rescan. However, when > > > I start Emacs -Q, evaluate just my emendation of your vodil-imenu-bfh > > > command, then visit avoid.el and invoking vodil-imenu-bfh, the > > > Imenu Headings buffer pops up containing this: > > >=20 > > > Rescan > > > mouse-avoidance-set-pointer-shape > > > mouse-avoidance-point-position > > > mouse-avoidance-set-mouse-position > > > mouse-avoidance-too-close-p > > > mouse-avoidance-banish-destination > > > mouse-avoidance-banish-mouse > > > mouse-avoidance-delta > > > mouse-avoidance-nudge-mouse > > > mouse-avoidance-random-shape > > > mouse-avoidance-ignore-p > > > mouse-avoidance-banish > > > mouse-avoidance-exile > > > mouse-avoidance-fancy > > > mouse-avoidance-mode > > >=20 > > > So at least the contents of avoid.el does not contain a match for you= r > > > setting of imenu-generic-expression, and presumably the same goes for > > > the file you tested your code on. > > >=20 > > > Steve Berman > >=20 > > Try with this to pick up (defun > >=20 > > ("defun" "^\\s-*(defun\\s-+\\([[:word:]-]+\\)") 1) > >=20 > > imenu-generic-expression works on my elisp file. Only the new buffer ha= s rescan >=20 >=20 > Ok, now I see the problem: the list produced by imenu--make-index-alist > contains two elements: ("Rescan" . -99) is the first, and the second > is a list whose car is "defun" (or for your file presumably "headings") > and whose cdr is the list of strings from the matching elements > (defuns/headings) in the file with their positions. What you want to > loop over is just the latter list. So it should work if you use this in > vodil-imenu-bfh: >=20 > (let ((imenu-items (cdadr (imenu--make-index-alist t))) > ...) > ...) >=20 > Steve Berman Now things are working as I hoped.