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From: Paul Eggert <eggert@cs.ucla.edu>
To: Michael Heerdegen <michael_heerdegen@web.de>,
	Drew Adams <drew.adams@oracle.com>
Cc: ke.vigouroux@laposte.net, "Dmitry Gutov" <dgutov@yandex.ru>,
	40671@debbugs.gnu.org, "Richard Stallman" <rms@gnu.org>,
	"Mattias Engdegård" <mattiase@acm.org>
Subject: bug#40671: [DOC] modify literal objects
Date: Sun, 10 May 2020 23:28:23 -0700	[thread overview]
Message-ID: <c520ec8c-2926-4e5f-6d6b-48b368a69a04@cs.ucla.edu> (raw)
In-Reply-To: <87tv0nvztm.fsf@web.de>

[-- Attachment #1: Type: text/plain, Size: 288 bytes --]

On 5/10/20 9:51 PM, Michael Heerdegen wrote:
> BTW (also @Paul) there are some places (five or so) in Elisp source
> files that look like
> 
>   (nconc '(x y z) (get-some-list))
> 
> Should they be rewritten?

Yes, of course. Does the attached diff (against master) match what you found?

[-- Attachment #2: nconc.diff --]
[-- Type: text/x-patch, Size: 6959 bytes --]

diff --git a/lisp/emacs-lisp/byte-opt.el b/lisp/emacs-lisp/byte-opt.el
index 4f72251aed..fd6c6fe1ad 100644
--- a/lisp/emacs-lisp/byte-opt.el
+++ b/lisp/emacs-lisp/byte-opt.el
@@ -1509,14 +1509,13 @@ byte-compile-side-effect-and-error-free-ops
     byte-current-buffer byte-stack-ref))
 
 (defconst byte-compile-side-effect-free-ops
-  (nconc
-   '(byte-varref byte-nth byte-memq byte-car byte-cdr byte-length byte-aref
-     byte-symbol-value byte-get byte-concat2 byte-concat3 byte-sub1 byte-add1
-     byte-eqlsign byte-gtr byte-lss byte-leq byte-geq byte-diff byte-negate
-     byte-plus byte-max byte-min byte-mult byte-char-after byte-char-syntax
-     byte-buffer-substring byte-string= byte-string< byte-nthcdr byte-elt
-     byte-member byte-assq byte-quo byte-rem byte-substring)
-   byte-compile-side-effect-and-error-free-ops))
+  `(byte-varref byte-nth byte-memq byte-car byte-cdr byte-length byte-aref
+    byte-symbol-value byte-get byte-concat2 byte-concat3 byte-sub1 byte-add1
+    byte-eqlsign byte-gtr byte-lss byte-leq byte-geq byte-diff byte-negate
+    byte-plus byte-max byte-min byte-mult byte-char-after byte-char-syntax
+    byte-buffer-substring byte-string= byte-string< byte-nthcdr byte-elt
+    byte-member byte-assq byte-quo byte-rem byte-substring
+    ,@byte-compile-side-effect-and-error-free-ops))
 
 ;; This crock is because of the way DEFVAR_BOOL variables work.
 ;; Consider the code
diff --git a/lisp/frameset.el b/lisp/frameset.el
index 10c6914f52..5850561928 100644
--- a/lisp/frameset.el
+++ b/lisp/frameset.el
@@ -396,17 +396,17 @@ frameset-prop
 ;; or, if you're only changing a few items,
 ;;
 ;;   (defvar my-filter-alist
-;;     (nconc '((my-param1 . :never)
-;;              (my-param2 . my-filtering-function))
-;;            frameset-filter-alist)
+;;     `((my-param1 . :never)
+;;       (my-param2 . my-filtering-function)
+;;       ,@frameset-filter-alist)
 ;;     "My brief customized parameter filter alist.")
 ;;
 ;; and pass it to the FILTER arg of the save/restore functions,
 ;; ALWAYS taking care of not modifying the original lists; if you're
 ;; going to do any modifying of my-filter-alist, please use
 ;;
-;;   (nconc '((my-param1 . :never) ...)
-;;          (copy-sequence frameset-filter-alist))
+;;   `(((my-param1 . :never) ...)
+;;     ,@(copy-sequence frameset-filter-alist))
 ;;
 ;; One thing you shouldn't forget is that they are alists, so searching
 ;; in them is sequential.  If you just want to change the default of
@@ -445,39 +445,38 @@ frameset-session-filter-alist
 
 ;;;###autoload
 (defvar frameset-persistent-filter-alist
-  (nconc
-   '((background-color            . frameset-filter-sanitize-color)
-     (buffer-list                 . :never)
-     (buffer-predicate            . :never)
-     (buried-buffer-list          . :never)
-     ;; Don't save the 'client' parameter to avoid that a subsequent
-     ;; `save-buffers-kill-terminal' in a non-client session barks at
-     ;; the user (Bug#29067).
-     (client                      . :never)
-     (delete-before               . :never)
-     (font                        . frameset-filter-font-param)
-     ;; Don't save font-backend because we cannot guarantee the new
-     ;; session will support the saved backend anyway.  (Bug#38442)
-     (font-backend                . :never)
-     (foreground-color            . frameset-filter-sanitize-color)
-     (frameset--text-pixel-height . :save)
-     (frameset--text-pixel-width  . :save)
-     (fullscreen                  . frameset-filter-shelve-param)
-     (GUI:font                    . frameset-filter-unshelve-param)
-     (GUI:fullscreen              . frameset-filter-unshelve-param)
-     (GUI:height                  . frameset-filter-unshelve-param)
-     (GUI:width                   . frameset-filter-unshelve-param)
-     (height                      . frameset-filter-shelve-param)
-     (outer-window-id             . :never)
-     (parent-frame                . :never)
-     (parent-id                   . :never)
-     (mouse-wheel-frame           . :never)
-     (tty                         . frameset-filter-tty-to-GUI)
-     (tty-type                    . frameset-filter-tty-to-GUI)
-     (width                       . frameset-filter-shelve-param)
-     (window-id                   . :never)
-     (window-system               . :never))
-   frameset-session-filter-alist)
+  `((background-color            . frameset-filter-sanitize-color)
+    (buffer-list                 . :never)
+    (buffer-predicate            . :never)
+    (buried-buffer-list          . :never)
+    ;; Don't save the 'client' parameter to avoid that a subsequent
+    ;; `save-buffers-kill-terminal' in a non-client session barks at
+    ;; the user (Bug#29067).
+    (client                      . :never)
+    (delete-before               . :never)
+    (font                        . frameset-filter-font-param)
+    ;; Don't save font-backend because we cannot guarantee the new
+    ;; session will support the saved backend anyway.  (Bug#38442)
+    (font-backend                . :never)
+    (foreground-color            . frameset-filter-sanitize-color)
+    (frameset--text-pixel-height . :save)
+    (frameset--text-pixel-width  . :save)
+    (fullscreen                  . frameset-filter-shelve-param)
+    (GUI:font                    . frameset-filter-unshelve-param)
+    (GUI:fullscreen              . frameset-filter-unshelve-param)
+    (GUI:height                  . frameset-filter-unshelve-param)
+    (GUI:width                   . frameset-filter-unshelve-param)
+    (height                      . frameset-filter-shelve-param)
+    (outer-window-id             . :never)
+    (parent-frame                . :never)
+    (parent-id                   . :never)
+    (mouse-wheel-frame           . :never)
+    (tty                         . frameset-filter-tty-to-GUI)
+    (tty-type                    . frameset-filter-tty-to-GUI)
+    (width                       . frameset-filter-shelve-param)
+    (window-id                   . :never)
+    (window-system               . :never)
+    ,@frameset-session-filter-alist)
   "Parameters to filter for persistent framesets.
 DO NOT MODIFY.  See `frameset-filter-alist' for a full description.")
 
diff --git a/lisp/gnus/gnus-sum.el b/lisp/gnus/gnus-sum.el
index 6f367692dd..595df607f5 100644
--- a/lisp/gnus/gnus-sum.el
+++ b/lisp/gnus/gnus-sum.el
@@ -1501,9 +1501,9 @@ gnus-summary-mode-line-format-alist
 
 ;; This is here rather than in gnus-art for compilation reasons.
 (defvar gnus-article-mode-line-format-alist
-  (nconc '((?w (gnus-article-wash-status) ?s)
-	   (?m (gnus-article-mime-part-status) ?s))
-	 gnus-summary-mode-line-format-alist))
+  (nconc `((?w (gnus-article-wash-status) ?s)
+	   (?m (gnus-article-mime-part-status) ?s)
+	   ,@gnus-summary-mode-line-format-alist)))
 
 (defvar gnus-last-search-regexp nil
   "Default regexp for article search command.")

  reply	other threads:[~2020-05-11  6:28 UTC|newest]

Thread overview: 170+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-16 19:28 bug#40671: [DOC] modify literal objects Kevin Vigouroux via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-04-17 16:09 ` Mattias Engdegård
2020-04-17 16:37   ` Mattias Engdegård
2020-04-17 17:27     ` Eli Zaretskii
2020-04-18 20:10 ` Paul Eggert
2020-04-18 21:54   ` Drew Adams
2020-04-19  2:39     ` Noam Postavsky
2020-04-19 20:39     ` Paul Eggert
2020-04-19 21:01       ` Drew Adams
2020-04-19 21:16         ` Paul Eggert
2020-04-19 22:24           ` Drew Adams
2020-04-19 22:51             ` Paul Eggert
2020-04-20  5:32               ` Drew Adams
2020-04-22 17:36                 ` Paul Eggert
2020-05-01  3:03     ` Dmitry Gutov
2020-05-01  5:16       ` Drew Adams
2020-05-01 21:46       ` Paul Eggert
2020-05-01 23:37         ` Dmitry Gutov
2020-04-19  2:26   ` Richard Stallman
2020-04-19 13:56   ` Eli Zaretskii
2020-04-19 16:59     ` Mattias Engdegård
2020-04-19 19:21       ` Eli Zaretskii
2020-04-19 21:02       ` Paul Eggert
2020-04-19 21:11         ` Drew Adams
2020-04-19 21:57         ` Michael Heerdegen
2020-04-19 22:41           ` Paul Eggert
2020-04-19 23:45             ` Michael Heerdegen
2020-04-20  0:24               ` Paul Eggert
2020-04-20  0:53                 ` Michael Heerdegen
2020-04-20  3:23                   ` Paul Eggert
2020-04-20  3:36                     ` Michael Heerdegen
2020-04-22  6:30                       ` Paul Eggert
2020-04-20  5:54                     ` Drew Adams
2020-04-22 17:21                       ` Paul Eggert
2020-04-23  0:49                         ` Michael Heerdegen
2020-04-24  2:36                           ` Richard Stallman
2020-04-24 15:08                             ` Drew Adams
2020-04-25  1:58                               ` Paul Eggert
2020-04-24 16:39                             ` Mattias Engdegård
2020-04-24 16:46                               ` Dmitry Gutov
2020-04-25  2:21                                 ` Paul Eggert
2020-04-25  2:40                                   ` Dmitry Gutov
2020-04-25  3:20                                     ` Paul Eggert
2020-04-25 19:30                                       ` Dmitry Gutov
2020-04-26  3:49                                         ` Paul Eggert
2020-04-26 14:03                                           ` Dmitry Gutov
2020-04-26 14:19                                             ` Eli Zaretskii
2020-04-26 14:34                                               ` Dmitry Gutov
2020-04-26 15:46                                                 ` Eli Zaretskii
2020-04-26 16:02                                                   ` Dmitry Gutov
2020-04-26 16:58                                                     ` Eli Zaretskii
2020-04-26 17:39                                                       ` Dmitry Gutov
2020-04-26 18:14                                                         ` Eli Zaretskii
2020-04-26 18:32                                                           ` Dmitry Gutov
2020-04-26 18:41                                                             ` Eli Zaretskii
2020-04-26 18:53                                                               ` Dmitry Gutov
2020-04-26 18:57                                             ` Paul Eggert
2020-04-26 19:22                                               ` Philipp Stephani
2020-04-26 20:14                                                 ` Paul Eggert
2020-04-26 21:23                                               ` Dmitry Gutov
2020-04-26 23:13                                                 ` Paul Eggert
2020-04-27  0:53                                                   ` Dmitry Gutov
2020-04-27  1:49                                                     ` Paul Eggert
2020-04-28  3:05                                                       ` Dmitry Gutov
2020-04-28  8:17                                                         ` Paul Eggert
2020-04-28 13:54                                                           ` Dmitry Gutov
2020-04-28 17:59                                                             ` Paul Eggert
2020-04-28 18:46                                                               ` Dmitry Gutov
2020-04-28 19:20                                                                 ` Paul Eggert
2020-04-28 19:33                                                                   ` Dmitry Gutov
2020-04-28 20:09                                                                     ` Paul Eggert
2020-04-28 21:10                                                                       ` Dmitry Gutov
2020-04-28 23:10                                                                         ` Paul Eggert
2020-04-28 23:36                                                                           ` Dmitry Gutov
2020-04-28 23:53                                                                             ` Paul Eggert
2020-04-28 23:57                                                                               ` Dmitry Gutov
2020-04-28 23:53                                                                           ` Dmitry Gutov
2020-04-29  0:04                                                                             ` Paul Eggert
2020-04-29  0:14                                                                               ` Dmitry Gutov
2020-04-29  0:55                                                                           ` Drew Adams
2020-04-29  1:03                                                                             ` Dmitry Gutov
2020-04-29  1:15                                                                               ` Drew Adams
2020-04-29  1:27                                                                                 ` Michael Heerdegen
2020-04-29  1:38                                                                             ` Paul Eggert
2020-04-29  4:36                                                                               ` Drew Adams
2020-04-29 16:18                                                                                 ` Paul Eggert
2020-05-01  2:47                                                                                   ` Richard Stallman
2020-05-01  6:23                                                                                     ` Eli Zaretskii
2020-05-01  3:13                                                                               ` Dmitry Gutov
2020-05-01  5:15                                                                                 ` Drew Adams
2020-05-01 21:40                                                                                 ` Paul Eggert
2020-05-01 22:05                                                                                   ` Drew Adams
2020-05-01 22:28                                                                                     ` Paul Eggert
2020-05-02  1:07                                                                                   ` Dmitry Gutov
2020-05-02  6:28                                                                                     ` Paul Eggert
2020-05-02 15:42                                                                                       ` Dmitry Gutov
2020-05-02 19:35                                                                                         ` Paul Eggert
2020-05-03  1:30                                                                                           ` Dmitry Gutov
2020-05-03  7:40                                                                                             ` Paul Eggert
2020-05-03 16:44                                                                                               ` Dmitry Gutov
2020-05-03 20:48                                                                                                 ` Paul Eggert
2020-05-03 22:17                                                                                                   ` Dmitry Gutov
2020-05-03 22:18                                                                                                   ` Dmitry Gutov
2020-05-03 22:39                                                                                                     ` Paul Eggert
2020-05-03 22:53                                                                                                       ` Dmitry Gutov
2020-05-03 23:10                                                                                                         ` Paul Eggert
2020-05-04 10:16                                                                                                           ` Dmitry Gutov
2020-05-04 17:52                                                                                                             ` Paul Eggert
2020-05-05  1:39                                                                                                               ` Dmitry Gutov
2020-05-05  6:09                                                                                                                 ` Paul Eggert
2020-05-05 12:38                                                                                                                   ` Dmitry Gutov
2020-05-09  6:10                                                                                                                     ` Paul Eggert
2020-05-10  3:13                                                                                                                       ` Dmitry Gutov
2020-05-10 13:34                                                                                                                         ` Dmitry Gutov
2020-05-10 17:29                                                                                                                         ` Paul Eggert
2020-05-11  0:00                                                                                                                           ` Michael Heerdegen
2020-05-11  0:26                                                                                                                             ` Dmitry Gutov
2020-05-11  1:47                                                                                                                             ` Drew Adams
2020-05-11  1:54                                                                                                                               ` Dmitry Gutov
2020-05-11  2:33                                                                                                                                 ` Drew Adams
2020-05-11  2:56                                                                                                                               ` Michael Heerdegen
2020-05-11  4:21                                                                                                                                 ` Drew Adams
2020-05-11  4:51                                                                                                                                   ` Michael Heerdegen
2020-05-11  6:28                                                                                                                                     ` Paul Eggert [this message]
2020-05-11 13:57                                                                                                                                       ` Noam Postavsky
2020-05-11 22:36                                                                                                                                         ` Michael Heerdegen
2020-05-11 22:30                                                                                                                                       ` Michael Heerdegen
2020-05-12  3:20                                                                                                                                       ` Richard Stallman
2020-05-12  4:24                                                                                                                                         ` Michael Heerdegen
2020-05-13  3:57                                                                                                                                           ` Richard Stallman
2020-05-13  5:05                                                                                                                                             ` Michael Heerdegen
2020-05-14  5:14                                                                                                                                               ` Richard Stallman
     [not found]                                                                                                                                       ` <05BEF593-F16A-4DEE-98BC-653221F1F9EE@acm.org>
2020-05-17  0:11                                                                                                                                         ` Paul Eggert
2020-05-17  9:43                                                                                                                                           ` Mattias Engdegård
2020-05-17 16:38                                                                                                                                             ` Paul Eggert
2020-05-11  1:53                                                                                                                             ` Paul Eggert
2020-05-11  3:18                                                                                                                               ` Michael Heerdegen
2020-05-11  0:44                                                                                                                           ` Dmitry Gutov
2020-05-11  1:57                                                                                                                             ` Paul Eggert
2020-05-12  1:59                                                                                                                               ` Dmitry Gutov
2020-05-17  1:28                                                                                                                                 ` Paul Eggert
2020-05-17  5:02                                                                                                                                   ` Michael Heerdegen
2020-05-17 16:34                                                                                                                                     ` Paul Eggert
2020-05-17 12:39                                                                                                                                   ` Dmitry Gutov
2020-05-17 16:21                                                                                                                                     ` Paul Eggert
2020-05-05 17:40                                                                                                                   ` Drew Adams
2020-05-05 18:49                                                                                                                     ` Dmitry Gutov
2020-05-05 19:26                                                                                                                       ` Drew Adams
2020-05-05 20:48                                                                                                               ` Kevin Vigouroux via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-05-09  5:57                                                                                                                 ` Paul Eggert
2020-04-28 21:18                                                                       ` Dmitry Gutov
2020-04-28 17:25                                                           ` Drew Adams
2020-04-28 17:47                                                             ` Paul Eggert
2020-04-29  0:32                                                               ` Michael Heerdegen
2020-04-29  1:40                                                                 ` Paul Eggert
2020-04-29  4:40                                                                   ` Michael Heerdegen
2020-04-29  8:01                                                                     ` Eli Zaretskii
2020-04-29 16:36                                                                 ` Paul Eggert
2020-04-24 17:18                               ` Drew Adams
2020-04-25  3:38                               ` Richard Stallman
2020-04-25 18:26                                 ` Paul Eggert
2020-04-25  2:22                           ` Paul Eggert
2020-04-25  6:00                             ` Andreas Schwab
2020-04-25 18:23                               ` Paul Eggert
2020-04-28 23:52                             ` Michael Heerdegen
2020-04-21  1:25               ` Michael Heerdegen
2020-04-21  2:20                 ` Paul Eggert
2020-04-20  6:02             ` Drew Adams
2020-04-19 20:45     ` Paul Eggert
2020-04-20 14:10       ` Eli Zaretskii

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