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From: Richard Stallman <rms@gnu.org>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: combining cond and let, to replace pcase.
Date: Sun, 26 Nov 2023 22:11:47 -0500	[thread overview]
Message-ID: <E1r7S2F-0004Tk-NE@fencepost.gnu.org> (raw)
In-Reply-To: <jwv8r6m2zve.fsf-monnier+emacs@gnu.org> (emacs-devel@gnu.org)

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  > (defalias 'match-set #'pcase-setq)

I'm not defining these constructs based on pcase.
I'm defining them to be useful together with cond*.
If one of them resembles a part of pcase, that is a coincidence
even if not entirely surprising.

Maybe we can copy parts of that pcase code with changes, smaller or
larger.  However, the definitions of these constructs will not depend
on pcase.

  > There's a tradeoff here, indeed: sometimes I find the added ((...))
  > of `pcase-let` rather annoying, but other times the fact that it's
  > a superset of `let` means I get to mix it with normal bindings without
  > increasing the nesting depth,

What does that mean, concretely?  I am not sure.  I have (not
coincidentally) little experience with reading code that uses pcase.

-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)





  parent reply	other threads:[~2023-11-27  3:11 UTC|newest]

Thread overview: 342+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-16  3:04 Instead of pcase Richard Stallman
2023-11-16  7:37 ` Philip Kaludercic
2023-11-16 17:18   ` T.V Raman
2023-11-16 17:44     ` Michael Heerdegen
2023-11-16 18:16       ` Philip Kaludercic
2023-11-17  8:54         ` Complex SPEC for variables/customization like font-lock-keywords/org-capture-templates/etc (was: Instead of pcase) Ihor Radchenko
2023-11-25  4:03           ` Complex SPEC for variables/customization like font-lock-keywords/org-capture-templates/etc Stefan Monnier
2023-11-16 19:19       ` Instead of pcase Eli Zaretskii
2023-11-17  8:02         ` Michael Heerdegen
2023-11-16 18:21     ` Dmitry Gutov
2023-11-16 18:39       ` T.V Raman
2023-11-16 18:47         ` Philip Kaludercic
2023-11-16 18:51           ` T.V Raman
2023-11-18  3:04           ` Richard Stallman
2023-11-19 12:23             ` Michael Heerdegen
2023-11-19 16:02               ` Barry Fishman
2023-11-19 17:59                 ` Dmitry Gutov
2023-11-19 19:31                   ` Eric Abrahamsen
2023-11-25  4:23                     ` Stefan Monnier via Emacs development discussions.
2023-11-27  3:12                       ` Richard Stallman
2023-11-19 21:15                   ` Barry Fishman
2023-11-20  1:15                     ` Dmitry Gutov
2023-11-20 15:32                     ` Michael Heerdegen
2023-11-23  2:57                       ` Richard Stallman
2023-11-24 17:14                         ` Dmitry Gutov
2023-11-27  3:09                           ` Richard Stallman
2023-11-27 12:21                             ` Dmitry Gutov
2023-11-29  3:42                               ` Richard Stallman
2023-11-29 12:56                                 ` Dmitry Gutov
2023-12-01  3:17                                   ` Richard Stallman
2023-11-28  2:44                           ` Richard Stallman
2023-11-28 12:39                             ` Dmitry Gutov
2023-11-30  3:37                               ` Richard Stallman
2023-12-01  0:18                                 ` Dmitry Gutov
2023-12-01  5:51                                   ` Emanuel Berg
2023-12-10  8:34                                     ` Alfred M. Szmidt
2023-12-10  9:35                                       ` Eli Zaretskii
2023-12-10  9:53                                         ` Alfred M. Szmidt
2023-12-10 10:35                                           ` Eli Zaretskii
2023-12-10 11:05                                             ` Alfred M. Szmidt
2023-12-01  7:21                                   ` Eli Zaretskii
2023-12-01  8:03                                     ` Manuel Giraud via Emacs development discussions.
2023-12-02  3:21                                   ` Richard Stallman
2023-11-24 18:14                         ` Michael Heerdegen
2023-11-24 18:35                           ` Dmitry Gutov
2023-11-27  3:14                           ` Richard Stallman
2023-11-28  2:46                             ` Richard Stallman
2023-11-28  6:35                               ` Nikita Domnitskii
2023-11-30  3:37                                 ` Richard Stallman
2023-12-02 21:37                                 ` Lynn Winebarger
2023-12-10 15:14                             ` Richard Stallman
2023-12-10 16:27                               ` Lynn Winebarger
2023-12-10 20:28                                 ` Michael Heerdegen via Emacs development discussions.
2023-12-10 21:13                                   ` Lynn Winebarger
2023-12-12  3:43                                   ` Richard Stallman
2023-12-12  6:46                                     ` Tomas Hlavaty
2023-12-12 15:18                                     ` [External] : " Drew Adams
2023-12-14  3:24                                       ` Richard Stallman
2023-12-14 16:52                                         ` Drew Adams
2023-12-16  4:24                                           ` Richard Stallman
2023-12-16  5:04                                             ` Drew Adams
2023-12-16 18:30                                               ` Bob Rogers
2023-12-18  4:13                                                 ` Richard Stallman
2023-12-12 19:24                                     ` Tomas Hlavaty
2023-12-12 21:36                                       ` [External] : " Drew Adams
2023-12-12 22:25                                         ` Michael Heerdegen via Emacs development discussions.
2023-12-13  1:32                                     ` Adam Porter
2023-12-14  3:23                                       ` Richard Stallman
2023-12-16  4:23                                       ` Richard Stallman
2023-12-18  4:09                                         ` cond* Richard Stallman
2023-12-18 10:08                                           ` cond* João Távora
2023-12-21  4:20                                             ` cond* Richard Stallman
2023-12-21  9:50                                               ` cond* João Távora
2023-12-21 16:01                                                 ` [External] : cond* Drew Adams
2023-12-21 16:20                                                   ` João Távora
2023-12-24  3:56                                                   ` Richard Stallman
2023-12-24  3:57                                                 ` cond* Richard Stallman
2023-12-21 14:10                                               ` cond* Ihor Radchenko
2023-12-24  3:57                                                 ` cond* Richard Stallman
2023-12-25 14:14                                                   ` cond* Ihor Radchenko
2023-12-19  3:49                                           ` cond* Richard Stallman
2023-12-19 12:13                                             ` cond* João Távora
2023-12-22  3:14                                               ` cond* Richard Stallman
2023-12-22  7:27                                                 ` cond* Philip Kaludercic
2023-12-25  3:41                                                   ` cond* Richard Stallman
2023-12-25 12:32                                                     ` cond* Philip Kaludercic
2023-12-27  4:54                                                       ` cond* Richard Stallman
2023-12-27 14:34                                                         ` cond* Philip Kaludercic
2023-12-29  3:52                                                           ` cond* Richard Stallman
2024-01-01 14:49                                                             ` cond* Ihor Radchenko
2024-01-03  4:13                                                               ` cond* Richard Stallman
2024-01-03 15:57                                                                 ` cond* Ihor Radchenko
2024-01-05  4:23                                                                   ` cond* Richard Stallman
2024-01-06 14:33                                                                     ` cond* Ihor Radchenko
2024-01-06 22:25                                                                       ` [External] : cond* Drew Adams
2024-01-08  3:45                                                                         ` Richard Stallman
2024-01-08 15:20                                                                           ` Drew Adams
2024-01-09  2:53                                                                           ` map seq and radix-tree-leaf, in pcase Richard Stallman
2024-01-08  3:47                                                                       ` cond* Richard Stallman
2024-01-10 13:03                                                                         ` cond* Ihor Radchenko
2024-01-13  3:50                                                                           ` cond* Richard Stallman
2024-01-13  6:32                                                                             ` cond* Adam Porter
2024-01-16  3:31                                                                               ` cond* Richard Stallman
2024-01-13 19:47                                                                             ` cond* Ihor Radchenko
2024-01-15  3:13                                                                               ` cond* Richard Stallman
2024-01-08  3:47                                                                       ` cond* Richard Stallman
2024-01-08 15:13                                                                         ` cond* Ihor Radchenko
2024-01-27  3:37                                                                           ` cond* Richard Stallman
2024-02-01 16:26                                                                             ` cond* Ihor Radchenko
2024-02-03  3:36                                                                               ` cond* Richard Stallman
2024-02-03 16:52                                                                                 ` cond* Ihor Radchenko
2024-01-03  4:13                                                               ` cond* Richard Stallman
2024-01-03 15:48                                                                 ` cond* Ihor Radchenko
2024-01-06  4:31                                                                   ` cond* Richard Stallman
2024-01-06 13:09                                                                     ` cond* Ihor Radchenko
2024-01-08  3:47                                                                       ` cond* Richard Stallman
2024-01-08 15:26                                                                         ` cond* Ihor Radchenko
2024-01-27  3:37                                                                           ` cond* Richard Stallman
2024-01-03  4:13                                                               ` cond* Richard Stallman
2024-01-03 15:50                                                                 ` cond* Ihor Radchenko
2024-01-06  4:31                                                                   ` cond* Richard Stallman
2024-01-06 13:13                                                                     ` cond* Ihor Radchenko
2024-01-08  3:47                                                                       ` cond* Richard Stallman
2024-01-08 15:35                                                                         ` cond* Ihor Radchenko
2023-12-19 15:53                                             ` [External] : cond* Drew Adams
2023-12-21  4:22                                               ` Richard Stallman
2023-12-21  4:22                                               ` Richard Stallman
2023-12-18  4:09                                         ` cond* Richard Stallman
2023-12-18  5:41                                           ` cond* Adam Porter
2023-12-21  4:20                                             ` cond* Richard Stallman
2023-12-16  4:23                                       ` Instead of pcase Richard Stallman
2023-12-16  4:23                                       ` Richard Stallman
2023-12-16  6:57                                         ` Adam Porter
2023-12-20  3:28                                           ` Richard Stallman
2023-12-20 10:52                                             ` Adam Porter
2023-12-23  2:53                                               ` Richard Stallman
2023-12-23  2:53                                               ` Richard Stallman
2023-12-25 14:26                                                 ` Ihor Radchenko
2023-12-27  4:54                                                   ` Richard Stallman
2023-12-28 13:05                                                     ` Ihor Radchenko
2023-12-30  3:20                                                       ` Richard Stallman
2024-01-01 14:33                                                         ` Ihor Radchenko
2024-01-03  4:13                                                           ` Richard Stallman
2024-01-03  4:13                                                           ` Richard Stallman
2024-01-03 16:08                                                             ` Ihor Radchenko
2024-01-05  4:23                                                               ` Richard Stallman
2024-01-06 13:04                                                                 ` Ihor Radchenko
2024-01-08  3:47                                                                   ` Richard Stallman
2024-01-08 15:42                                                                     ` Ihor Radchenko
2024-01-27  3:37                                                                       ` Richard Stallman
2023-12-13  4:58                                     ` Richard Stallman
2023-12-11  3:31                                 ` Richard Stallman
2023-11-19 13:49             ` Dmitry Gutov
2023-11-21  2:42               ` Richard Stallman
2023-11-21  5:14                 ` Jim Porter
2023-11-21  5:34                 ` Yuri Khan
2023-11-21 11:11                 ` Dmitry Gutov
2023-11-21 15:38                   ` Michael Heerdegen
2023-11-23  3:00                     ` Richard Stallman
2023-11-24  3:34                   ` Richard Stallman
2023-11-24  4:30                     ` Jim Porter
2023-11-24  7:45                       ` Eli Zaretskii
2023-11-25  3:08                       ` Emanuel Berg
2023-11-24 17:01                     ` Dmitry Gutov
2023-11-24 17:29                 ` Lynn Winebarger
2023-11-28  2:44                   ` Richard Stallman
2023-11-30 19:14                     ` Lynn Winebarger
2023-11-30 19:26                       ` Eli Zaretskii
2023-11-30 20:30                         ` Michael Heerdegen via Emacs development discussions.
2023-12-01  6:24                           ` Eli Zaretskii
2023-12-01 15:47                             ` Michael Heerdegen via Emacs development discussions.
2023-12-01 16:07                               ` Eli Zaretskii
2023-12-01 20:27                               ` Alan Mackenzie
2023-12-02 13:24                                 ` Michael Heerdegen via Emacs development discussions.
2023-12-02 13:51                                   ` Emanuel Berg
2023-12-04  3:11                                   ` Richard Stallman
2023-12-03  3:28                                 ` Richard Stallman
2023-11-30 20:47                         ` João Távora
2023-12-01  6:31                           ` Eli Zaretskii
2023-12-01  7:07                             ` Yuri Khan
2023-12-01  8:10                               ` Eli Zaretskii
2023-12-01  9:04                                 ` Andreas Schwab
2023-12-04  3:08                                   ` Richard Stallman
2023-12-04 11:58                                     ` Eli Zaretskii
2023-12-04 12:35                                       ` Lynn Winebarger
2023-12-04 13:20                                         ` Eli Zaretskii
2023-12-04 17:46                                           ` Andreas Schwab
2023-12-07  2:48                                             ` Richard Stallman
2023-12-07 17:42                                               ` Andreas Schwab
2023-12-09  4:02                                                 ` Richard Stallman
2023-12-04 18:17                                           ` Lynn Winebarger
2023-12-04 12:37                                       ` Dmitry Gutov
2023-12-08  3:54                                         ` Richard Stallman
2023-12-01 10:13                                 ` João Távora
2023-12-01  8:35                             ` Andreas Schwab
2023-12-01 10:02                             ` João Távora
2023-12-01 11:52                               ` Eli Zaretskii
2023-12-01 12:48                                 ` Dmitry Gutov
2023-12-01 14:44                                   ` Eli Zaretskii
2023-12-01 18:28                                     ` Dmitry Gutov
2023-12-01 18:40                                       ` Eli Zaretskii
2023-12-01 18:45                                       ` João Távora
2024-01-09  5:36                                         ` Stefan Kangas
2023-12-01 13:28                                 ` João Távora
2023-12-01 16:25                                 ` Andreas Schwab
2024-01-09  5:33                               ` Stefan Kangas
2024-01-09 10:43                                 ` João Távora
2023-12-01 16:04                             ` Michael Heerdegen via Emacs development discussions.
2023-12-01 16:33                               ` Eli Zaretskii
2023-12-02  3:20                       ` Richard Stallman
2023-12-02  8:41                         ` Andreas Schwab
2023-12-02  9:02                           ` Philip Kaludercic
2023-12-02 10:14                             ` Emanuel Berg
2023-12-02 17:02                               ` Barry Fishman
2023-12-02 20:25                                 ` Michael Heerdegen via Emacs development discussions.
2023-12-03  4:30                                 ` Emanuel Berg
2023-12-05  2:58                           ` Richard Stallman
2023-12-05  3:36                             ` chad
2023-12-08  3:53                               ` Richard Stallman
2023-12-02 14:33                         ` Michael Heerdegen via Emacs development discussions.
2023-12-04  3:11                           ` Richard Stallman
2023-12-02 18:01                         ` Lynn Winebarger
2023-12-04  3:11                           ` Richard Stallman
2023-12-04 12:27                             ` Lynn Winebarger
2023-12-03  3:27                         ` Richard Stallman
2023-11-25  4:15                 ` Stefan Monnier
2023-11-27  3:12                   ` Richard Stallman
2023-11-30 18:06                     ` Michael Heerdegen
2023-11-16 18:49         ` Dmitry Gutov
2023-11-16 23:41     ` Emanuel Berg
2023-11-17  7:34       ` Eli Zaretskii
2023-11-26  3:17   ` Richard Stallman
2023-11-16 15:06 ` Michael Heerdegen
2023-11-16 17:31   ` T.V Raman
2023-11-16 18:26     ` Jim Porter
2023-11-16 18:40       ` T.V Raman
2023-11-16 19:13         ` Jim Porter
2023-11-20  3:06   ` Richard Stallman
2023-11-20 14:35     ` Michael Heerdegen
2023-11-23  2:57       ` Richard Stallman
2023-11-16 15:20 ` Spencer Baugh
2023-11-16 20:16   ` Tomas Hlavaty
2023-11-16 21:37     ` [External] : " Drew Adams
2023-11-25  4:34     ` Stefan Monnier via Emacs development discussions.
2023-11-25  8:53       ` Eli Zaretskii
2023-11-18  3:03   ` combining cond and let, to replace pcase Richard Stallman
2023-11-19 11:20     ` Michael Heerdegen
2023-11-19 11:43       ` Eli Zaretskii
2023-11-19 12:16         ` Gerd Möllmann
2023-11-19 13:21           ` Eli Zaretskii
2023-11-19 13:32             ` Gerd Möllmann
2023-11-19 14:41               ` Eli Zaretskii
2023-11-19 15:27                 ` Gerd Möllmann
2023-11-19 15:29                   ` Eli Zaretskii
2023-11-19 16:03           ` Joost Kremers
2023-11-19 16:59             ` Eli Zaretskii
2023-11-19 18:29               ` Joost Kremers
2023-11-19 18:35                 ` Eli Zaretskii
2023-11-19 12:50         ` Michael Heerdegen
2023-11-19 13:08           ` Eli Zaretskii
2023-11-19 13:52             ` Michael Heerdegen
2023-11-19 14:45               ` Eli Zaretskii
2023-11-20 15:35                 ` Michael Heerdegen
2023-11-20 16:37                   ` Eli Zaretskii
2023-11-21  8:33                     ` Michael Heerdegen
2023-11-21  8:39                       ` Michael Heerdegen
2023-11-19 13:59             ` Dmitry Gutov
2023-11-19 14:49               ` Eli Zaretskii
2023-11-19 14:53                 ` Dmitry Gutov
2023-11-19 12:04       ` Gerd Möllmann
2023-11-19 18:10       ` Tomas Hlavaty
2023-11-25  4:45         ` Stefan Monnier via Emacs development discussions.
2023-11-28 15:31           ` João Távora
2023-11-28 15:55             ` Stefan Monnier
2023-11-19 21:36       ` Alan Mackenzie
2023-11-21 16:14         ` Michael Heerdegen
2023-11-19 16:08     ` Axel Forsman
2023-11-21 15:53     ` Michael Heerdegen
2023-11-23  2:58     ` Richard Stallman
2023-11-23  7:02       ` Tomas Hlavaty
2023-11-26  3:14         ` Richard Stallman
2023-11-27 17:07           ` Tomas Hlavaty
2023-11-27 17:59             ` Yuri Khan
2023-11-28 14:25               ` Tomas Hlavaty
2023-11-23  8:58       ` Manuel Giraud via Emacs development discussions.
2023-11-26  3:14         ` Richard Stallman
2023-11-24  3:08       ` Daniel Semyonov
2023-11-24  3:26         ` Daniel Semyonov
2023-11-25  2:59         ` Richard Stallman
2023-11-25  5:11       ` Stefan Monnier via Emacs development discussions.
2023-11-27  3:11         ` Richard Stallman
2023-11-27 18:13           ` Manuel Giraud via Emacs development discussions.
2023-11-27 18:49             ` Yuri Khan
2023-11-27 23:12               ` Stefan Monnier
2023-11-29  3:41               ` Richard Stallman
2023-11-29  3:40             ` Richard Stallman
2023-11-27  3:11         ` Richard Stallman [this message]
2023-11-16 18:11 ` Instead of pcase Emanuel Berg
2023-11-16 19:26   ` Eli Zaretskii
2023-11-16 22:16     ` Emanuel Berg
2023-11-17  7:30       ` Eli Zaretskii
2023-11-17  8:09         ` Emanuel Berg
2023-11-17 12:16           ` Eli Zaretskii
2023-11-18  6:26             ` Emanuel Berg
2023-11-18  7:21               ` Po Lu
2023-11-18  7:41                 ` Eli Zaretskii
2023-11-16 18:22 ` Jim Porter
2023-11-16 22:55   ` Emanuel Berg
2023-11-17  5:36   ` Po Lu
2023-11-19 11:48     ` Michael Heerdegen
2023-11-19 12:50       ` Eli Zaretskii
2023-11-19 14:05         ` Dmitry Gutov
2023-11-19 14:41           ` Po Lu
2023-11-19 14:44             ` Dmitry Gutov
2023-11-19 14:52           ` Eli Zaretskii
2023-11-19 14:58             ` Dmitry Gutov
2023-11-19 15:14               ` Eli Zaretskii
2023-11-19 18:04                 ` Dmitry Gutov
2023-11-19 18:30                   ` Eli Zaretskii
2023-11-19 18:51                     ` Dmitry Gutov
2023-11-19 19:49                       ` Eli Zaretskii
2023-11-21  2:43               ` Richard Stallman
2023-11-19 14:14         ` Michael Heerdegen
2023-11-19 15:09           ` Eli Zaretskii
2023-11-20 14:52             ` Michael Heerdegen
2023-11-19 14:29       ` Po Lu
2023-11-20 15:20         ` Michael Heerdegen
2023-11-20 15:29         ` Dmitry Gutov
2023-11-20 23:43           ` Po Lu
2023-11-21  1:09             ` Dmitry Gutov
2023-11-21  1:49               ` Po Lu
2023-11-21  1:59                 ` Dmitry Gutov
2023-11-21  4:04                   ` Po Lu
2023-11-21 11:27                     ` Dmitry Gutov
2023-11-21 11:49                       ` Po Lu
2023-11-20 23:45           ` Jose E. Marchesi
2023-11-20 23:54             ` Emanuel Berg
2023-11-21  2:01             ` Dmitry Gutov
2023-11-22  2:59               ` Richard Stallman
2023-11-22  3:29                 ` Emanuel Berg
2023-11-22 11:58                 ` Dmitry Gutov
2023-11-24  3:38                   ` Richard Stallman

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