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: insert gives args out of range Date: Fri, 16 Aug 2024 17:32:49 +0000 Message-ID: References: <87h6bkmz5k.fsf@gmx.net> <9gWogDhaCBXEnTOijkijtCrrcAbhYY04AgDjXlqWxAN1m7xvAUbl31U_6aBjyp6Q8iu2M7SIMHNmyvD0QJ6NnC2PSFHIpdgos1q7eVM-CLI=@protonmail.com> <87a5hcmr9y.fsf@gmx.net> <1LrMW6VZOGaiPZeu9oQzAEzURNe5DSG4qEIpTAcMJIYlF_Ror7Qi4fwKLeEtID86cPFTghDDGsf78h3ngmTMitZ_kbjiPZ2L_COpl5uJRFc=@protonmail.com> <875xs0mqgx.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="22397"; 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 Fri Aug 16 19:33:35 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 1sf0pT-0005bl-8c for geh-help-gnu-emacs@m.gmane-mx.org; 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b=qDr2z7DDiNbMa08xXMwwxzVh9Yjvi3ZJ2fL13w02Qgr43VKihnGOjYOrDjYElA2+8 EclcunROkiDou8w7r5JVjRVP2myy2pOttvVSRJLBnTtkx9YcDZMyeluiu2yjN9Aj19 1WR4rD9yImAWorT3KDDJGEOBb4PpXt8MGLzAgAriY8hSxyPdVsDNqH9j2VsrLd9/nR TtKSRGE/fC75ZAp0PRk9Hgcu0ow522u3VWIV4RBzLCZKfM+vs8Yao8PcA+GVgcjp3L 5oXZAFJX0gV7v0cX2655RYIDDz+Xc/1HUvAUTuRPsMfLfk6kR3TWDYtv2ki45kKuYY m7skbx0kMMLxQ== In-Reply-To: <875xs0mqgx.fsf@gmx.net> Feedback-ID: 57735886:user:proton X-Pm-Message-ID: 4558ef284ff252dc6c94ba897927f4fbb807ca5b Received-SPF: pass client-ip=185.70.43.167; envelope-from=heimeborgia@protonmail.com; helo=mail-43167.protonmail.ch X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-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: 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:147720 Archived-At: On Saturday, August 17th, 2024 at 3:34 AM, Stephen Berman wrote: > On Fri, 16 Aug 2024 15:21:12 +0000 Heime heimeborgia@protonmail.com wrote= : >=20 > > On Saturday, August 17th, 2024 at 3:16 AM, Stephen Berman > > stephen.berman@gmx.net wrote: > >=20 > > > On Fri, 16 Aug 2024 15:09:55 +0000 Heime heimeborgia@protonmail.com w= rote: > > >=20 > > > > On Saturday, August 17th, 2024 at 3:01 AM, Heime > > > > heimeborgia@protonmail.com wrote: > > > >=20 > > > > > On Saturday, August 17th, 2024 at 12:26 AM, Stephen Berman > > > > > stephen.berman@gmx.net wrote: > > > > >=20 > > > > > > On Fri, 16 Aug 2024 12:10:48 +0000 Heime heimeborgia@protonmail= .com wrote: > > > > > >=20 > > > > > > > On Saturday, August 17th, 2024 at 12:03 AM, Heime > > > > > > > heimeborgia@protonmail.com wrote: > > > > > > >=20 > > > > > > > > On Friday, August 16th, 2024 at 11:51 PM, Stephen Berman > > > > > > > > stephen.berman@gmx.net wrote: > > > > > > > >=20 > > > > > > > > > On Fri, 16 Aug 2024 10:59:09 +0000 Heime > > > > > > > > > heimeborgia@protonmail.com wrote: > > > > > > > > >=20 > > > > > > > > > > On Friday, August 16th, 2024 at 10:20 PM, Heime > > > > > > > > > > heimeborgia@protonmail.com wrote: > > > > > > > > > >=20 > > > > > > > > > > > On Friday, August 16th, 2024 at 9:54 PM, Stephen Berm= an > > > > > > > > > > > stephen.berman@gmx.net wrote: > > > > > > > > > > >=20 > > > > > > > > > > > > On Fri, 16 Aug 2024 09:24:23 +0000 Heime > > > > > > > > > > > > heimeborgia@protonmail.com wrote: > > > > > > > > > > > >=20 > > > > > > > > > > > > > I want to display text starting from "(defun" up = to the > > > > > > > > > > > > > second blank > > > > > > > > > > > > > line that is encountered. > > > > > > > > > > > > >=20 > > > > > > > > > > > > > But with this code I get > > > > > > > > > > > > >=20 > > > > > > > > > > > > > insert: Args out of range: #, 2706, 2804 > > > > > > > > > > > > >=20 > > > > > > > > > > > > > (defun display-text () > > > > > > > > > > > > > "Display the text between a line starting with '(= defun' and > > > > > > > > > > > > > the second > > > > > > > > > > > > > blank line." > > > > > > > > > > > > > (interactive) > > > > > > > > > > > > > (let ((output-buffer (get-buffer-create "Defun Se= ctions"))) > > > > > > > > > > > > > (with-current-buffer output-buffer > > > > > > > > > > > > > (erase-buffer)) ;; Clear previous contents > > > > > > > > > > > > > (save-excursion > > > > > > > > > > > > > (goto-char (point-min)) > > > > > > > > > > > > > (while (re-search-forward "^(defun" nil t) > > > > > > > > > > > > > (let ((start (match-beginning 0)) > > > > > > > > > > > > > (blank-lines 0) > > > > > > > > > > > > > end) > > > > > > > > > > > > > ;; Move forward to find the second blank line > > > > > > > > > > > > > (while (and (< blank-lines 2) > > > > > > > > > > > > > (re-search-forward "^\\s-*$" nil t)) > > > > > > > > > > > > > (setq blank-lines (1+ blank-lines))) > > > > > > > > > > > > > (setq end (point)) > > > > > > > > > > > > > ;; Ensure the range is valid before inserting > > > > > > > > > > > > > (when (> end start) > > > > > > > > > > > > > (with-current-buffer output-buffer > > > > > > > > > > > > > (insert (buffer-substring-no-properties start end= ) "\n")))))) > > > > > > > > > > > > > ;; Display the output buffer > > > > > > > > > > > > > (display-buffer output-buffer))) > > > > > > > > > > > >=20 > > > > > > > > > > > > You've set `start' and` end' in a different buffer = than > > > > > > > > > > > > output-buffer > > > > > > > > > > > > but you're invoking buffer-substring-no-properties = with these > > > > > > > > > > > > values in > > > > > > > > > > > > output-buffer, which you've erased, so those values= are not in > > > > > > > > > > > > the range > > > > > > > > > > > > of possible values in output-buffer. Try let-bindin= g the > > > > > > > > > > > > result of > > > > > > > > > > > > invoking buffer-substring-no-properties before the = second > > > > > > > > > > > > invocation of > > > > > > > > > > > > with-current-buffer. > > > > > > > > > > > >=20 > > > > > > > > > > > > Steve Berman > > > > > > > > > >=20 > > > > > > > > > > I updated as suggested. Although I get the output, the = search > > > > > > > > > > stops on > > > > > > > > > > the first > > > > > > > > > > blank line rather than on the second blank line. > > > > > > > > >=20 > > > > > > > > > Consider a buffer "test" with the following content (two = blank lines > > > > > > > > > between the defuns): > > > > > > > > >=20 > > > > > > > > > ;;;;;;;;;;;;; > > > > > > > > >=20 > > > > > > > > > (defun f1 () > > > > > > > > > (ignore)) > > > > > > > > >=20 > > > > > > > > > (defun f2 () > > > > > > > > > (ignore)) > > > > > > > > > ;;;;;;;;;;;;; > > > > > > > > >=20 > > > > > > > > > When you call `display-text' in "test", the first evaluat= ion of the > > > > > > > > > sexp (re-search-forward "^\\s-*$" nil t) moves point to t= he first blank > > > > > > > > > line below the first defun. Where is point after the seco= nd evaluation > > > > > > > > > of that sexp? - Steve Berman > > > > > > > >=20 > > > > > > > > It is still at the beginning of the first blank line. > > > > > > >=20 > > > > > > > I do not understand why this happens. Because (point) after > > > > > > > re-search-forward should give me the position at the beginnin= g of the > > > > > > > second blank line that is encountered. > > > > > >=20 > > > > > > The sexp (re-search-forward "^\\s-*$" nil t) succeeds if it fin= d a line > > > > > > containing only zero or more whitespace characters and moves po= int to > > > > > > the end of the match. If point is on a blank line, the search s= ucceeds, > > > > > > but since the beginning and end of the match coincide, point do= es not > > > > > > move. If you want point to move, your code needs to accommodate= this > > > > > > case. - Steve Berman > > > > >=20 > > > > > Have printed start and end just after (setq end (point)) > > > > >=20 > > > > > (message "Start: %d, End: %d" start end) > > > > >=20 > > > > > And the values for start and end are different. > > >=20 > > > `start' holds the value of the beginning of the match for "^(defun", = but > > > your problem arises when searching for "^\\s-*$"; you'll see it if yo= u > > > change the message to this: > > >=20 > > > (message "Start: %d, End: %d" (match-beginning 0) (match-end 0)) > > >=20 > > > > When the first blank is reached, point moves to that blank, the nex= t search > > > > keeps point at the same place rather than moving to the next blank = line. > > >=20 > > > For the reason I explained above. - Steve Berman > >=20 > > I have solved the problem by adding (forward-line 1) after setting blan= k-lines > >=20 > > (while (and (< blank-lines 2) > > (re-search-forward "^\\s-*$" nil t)) > > (setq blank-lines (1+ blank-lines)) > > ;; Move point forward to avoid re-matching the same blank line > > (forward-line 1)) > >=20 > > Could this fail on some circumstances ? >=20 >=20 > Depends on what you consider failure: with the buffer "test" I gave as > an example above, output-buffer contains not just two but three empty > lines between the two defuns, and not just one but two empty lines at > the end; is that what you want? >=20 > Steve Berman By failure, I mean this: Could Emacs fire an error buffer based on some unf= oreseen structure of the file when re-search-forward executes ?