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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: 15998@debbugs.gnu.org, Shigeru Fukaya <shigeru.fukaya@gmail.com>
Subject: bug#15998: 24.3; forward-sexp (scan-sexps) doesn't do well with some SEXPs
Date: Wed, 26 Jun 2019 13:06:22 -0400	[thread overview]
Message-ID: <jwvtvccqo5s.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <m3lfxoxteu.fsf@gnus.org> (Lars Ingebrigtsen's message of "Wed, 26 Jun 2019 17:23:05 +0200")

> But do we want to implement a brand new forward-sexp just for Emacs Lisp?

No, but I think syntax-propertize can take care of those things.

> I'm assuming that a Lisp-based implementation would be
> uncomfortably slow...
>
> To recap, the following doesn't forward-sexp correctly:
>
> 1. #s(...)          hash table
> 2. ^[...] ^^[...]   char table
> 5. ##               empty symbol
> 9. #&N"XXX"         bool vector

[ I believe for (2) there's a missing # in there somewhere, right?  ]

> And especially 1) is rather annoying...

I do wonder when/where these things show up, tho.
I'd expect those to appear in .elc files and in the output of M-: and
IELM buffers, but not in emacs-lisp-mode buffers.


        Stefan






  reply	other threads:[~2019-06-26 17:06 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-29 14:45 bug#15998: 24.3; forward-sexp (scan-sexps) doesn't do well with some SEXPs Shigeru Fukaya
2013-11-29 17:12 ` Stefan Monnier
2013-12-01 20:08   ` Shigeru Fukaya
2013-12-01 20:44     ` Stefan Monnier
2013-12-03  9:47       ` Shigeru Fukaya
2013-12-03 17:09         ` Stefan Monnier
2019-06-26 15:23           ` Lars Ingebrigtsen
2019-06-26 17:06             ` Stefan Monnier [this message]
2019-06-27 10:30               ` Lars Ingebrigtsen
2019-07-07  2:08               ` Noam Postavsky
2019-07-07 13:28                 ` Stefan Monnier
2019-07-07 13:47                   ` Noam Postavsky
2022-05-06 15:50                 ` bug#30132: 27.0.50; scan-sexps and ## Lars Ingebrigtsen
2022-05-06 16:30                   ` bug#15998: " Lars Ingebrigtsen
2022-05-07  0:08                     ` Michael Heerdegen
2022-05-07  4:05                       ` bug#15998: " Michael Heerdegen
2022-05-07 10:17                         ` Lars Ingebrigtsen

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