Package: emacs;
Reported by: Xavier Capaldi <xcapaldi <at> scribo.biz>
Date: Mon, 16 May 2022 04:37:02 UTC
Severity: normal
Found in version 27.2
Fixed in version 29.1
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
Bug is archived. No further changes may be made.
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bug-gnu-emacs <at> gnu.org:bug#55442; Package emacs.
(Mon, 16 May 2022 04:37:02 GMT) Full text and rfc822 format available.Xavier Capaldi <xcapaldi <at> scribo.biz>:bug-gnu-emacs <at> gnu.org.
(Mon, 16 May 2022 04:37:02 GMT) Full text and rfc822 format available.Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Xavier Capaldi <xcapaldi <at> scribo.biz> To: bug-gnu-emacs <at> gnu.org Subject: 27.2; newsticker-treeview-save uses print prin1-to-string which abbreviates groups based on print-length Date: Sun, 15 May 2022 22:12:23 -0400
1. Check the value of ~print-length` (default was 10 for me). 2. Use ~newsticker-add-url~ to add a number of RSS feeds greater than the value of ~print-length~ (in my real config I use use-package for this instead of the customize interface). 3. Run ~newsticker-treeview~ . . . it should work and you can fetch the feeds using 'G'. 4. Press 'q' to quit the treeview. 5. Run ~newsticker-treeview~ again and you'll get an error. The cause is quite simple: When you press 'q' (~newsticker-treeview-quit~) it calls ~newsticker-treeview-save~ which saves the feed groups to a file under the ~newsticker-dir~ named ~groups~. It uses ~prin1-to-string~ to write the groups. This function uses the ~print-length~ and ~print-level~ to determine how many elements to print before abbreviating the output with '...'. In my case, I have more feeds than the value of ~print-length~ so the feed groups are abbreviated. The next time you run ~newsticker-treeview~, it tries to read from that file but cannot due to abbreviated output. Now that I know, I can of course modify the values of ~print-length~ and ~print-depth~ but ideally ~newsticker-treeview-save~ should not depend on those variables to properly store the feed groups. If that's unavoidable, perhaps it can be noted in the newsticker documentation which is otherwise great. It looks like there is a patch for this in the bug report logs (#53638). In GNU Emacs 27.2 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.24.30, cairo version 1.17.4) of 2021-08-07 built on buildvm-x86-29.iad2.fedoraproject.org Windowing system distributor 'The X.Org Foundation', version 11.0.12014000 System Description: Fedora 34 (Thirty Four) Recent messages: Type "q" in help window to restore its previous buffer. Mark set [5 times] Entering debugger... "(\"Feeds\" \"GnuCash\" \"Suckless\" \"Russ Cox\" \"Paul Khuong\" \"Honnef\" \"Protesilaos\" \"Pragmatic Emacs\" \"Null Program\" \"Karthinks\" ...)" Type "q" in help window to restore previous buffer C-x C-g is undefined Quit Type "q" to restore previous buffer. 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Memory information: ((conses 16 604259 96853) (symbols 48 38572 1) (strings 32 158869 2951) (string-bytes 1 7601314) (vectors 16 59146) (vector-slots 8 688588 52968) (floats 8 462 542) (intervals 56 4297 1421) (buffers 1000 92))
bug-gnu-emacs <at> gnu.org:bug#55442; Package emacs.
(Mon, 16 May 2022 12:07:02 GMT) Full text and rfc822 format available.Message #8 received at 55442 <at> debbugs.gnu.org (full text, mbox):
From: Lars Ingebrigtsen <larsi <at> gnus.org> To: Xavier Capaldi <xcapaldi <at> scribo.biz> Cc: 55442 <at> debbugs.gnu.org Subject: Re: bug#55442: 27.2; newsticker-treeview-save uses print prin1-to-string which abbreviates groups based on print-length Date: Mon, 16 May 2022 14:06:11 +0200
Xavier Capaldi <xcapaldi <at> scribo.biz> writes: > It looks like there is a patch for this in the bug report logs (#53638). I've applied the changes in that patch to Emacs 29, so I guess there isn't more to do here, and I'm therefore closing this bug report. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no
Lars Ingebrigtsen <larsi <at> gnus.org>
to control <at> debbugs.gnu.org.
(Mon, 16 May 2022 12:07:02 GMT) Full text and rfc822 format available.Debbugs Internal Request <help-debbugs <at> gnu.org>
to internal_control <at> debbugs.gnu.org.
(Tue, 14 Jun 2022 11:24:04 GMT) Full text and rfc822 format available.
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