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* bug#24542: 25.1.50; The symbol `@' and sexp scanning
@ 2016-09-25 17:42 Michael Heerdegen
  2017-01-02 16:58 ` Michael Heerdegen
  2024-04-10 23:06 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
  0 siblings, 2 replies; 13+ messages in thread
From: Michael Heerdegen @ 2016-09-25 17:42 UTC (permalink / raw)
  To: 24542


Hi,

the following breaks my "el-search" package when searching in
"skeleton.el".  It assumes that calling `scan-sexps' works at the start
of any sexp.

Recipe: in emacs -Q,

insert

    (eq element '@)

in an elisp mode buffer (e.g. scratch).  Put point at the quote or the
"@".  Eval

    (goto-char (scan-sexps (point) 1))

and you get an error like:


Debugger entered--Lisp error: (scan-error "Containing expression ends prematurely" 15 16)
  scan-sexps(13 1)
  (goto-char (scan-sexps (point) 1))
  eval((goto-char (scan-sexps (point) 1)) nil)
  eval-expression((goto-char (scan-sexps (point) 1)) nil)
  funcall-interactively(eval-expression (goto-char (scan-sexps (point) 1)) nil)
  call-interactively(eval-expression nil nil)
  command-execute(eval-expression)


I think `scan-sexps' should not error.  FWIW, if I add one more sexp to
the list after "'@" (different from "'@"), there is no error.


TIA,

Michael.




In GNU Emacs 25.1.50.2 (x86_64-pc-linux-gnu, GTK+ Version 3.21.5)
 of 2016-09-23 built on drachen
Repository revision: 14c36d76df035faa127580d706a0564f4e496991
Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
System Description:	Debian GNU/Linux testing (stretch)

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GSETTINGS NOTIFY
LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:
  value of $LC_ALL: de_DE.utf8
  value of $LC_COLLATE: C
  value of $LC_TIME: C
  value of $LANG: de_DE.utf8
  locale-coding-system: utf-8-unix

Major mode: Emacs-Lisp






^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2024-04-13  1:55 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-09-25 17:42 bug#24542: 25.1.50; The symbol `@' and sexp scanning Michael Heerdegen
2017-01-02 16:58 ` Michael Heerdegen
2017-01-02 20:37   ` npostavs
2017-01-03 12:46     ` Michael Heerdegen
2017-01-03 13:03       ` npostavs
2020-09-04 13:05       ` Lars Ingebrigtsen
2020-09-04 13:31         ` Eli Zaretskii
2020-09-04 14:22           ` Stefan Monnier
2024-04-10 23:06 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-04-11  3:42   ` Michael Heerdegen via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-04-12 17:29     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-04-12 21:32       ` Michael Heerdegen via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-04-13  1:55         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors

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