GNU bug report logs - #283
scan-error for keyboard macro

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: bug#283: marked as done (scan-error for keyboard macro)

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Your message dated Wed, 21 May 2008 11:36:16 -0400
with message-id <jwvprrfr7ow.fsf-monnier+emacsbugreports <at> gnu.org>
and subject line Re: bug#283: scan-error for keyboard macro
has caused the Emacs bug report #283,
regarding scan-error for keyboard macro
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact don <at> donarmstrong.com
immediately.)


-- 
283: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=283
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: "Roland Winkler" <Roland.Winkler <at> physik.uni-erlangen.de>
To: bug-gnu-emacs <at> gnu.org
Subject: scan-error for keyboard macro
Date: Tue, 20 May 2008 09:06:19 +0200

The following piece of code was generated with insert-kbd-macro

(fset 'foo
   [?\C-[ ?f ?\C-[ ?  ?\C-[ ?b ?\C-[ ?w ?\C-x ?o ?\C-x ?\C-v left left ?\C-@ ?\C-r ?/ ?\C-m ?\C-w ?/ ?\C-y ?\C-[ ?y ?\C-m ?\C-x ?o])

If you put it into a file and load the file, the macro is available.
If you put point at the end of the macro definition and execute
C-x C-e (eval-last-sexp) this does not allow you to load the macro
(though eval-last-sexp doesn't throw an error, in the end the
macro foo is not available). If you put point inside the macro
definition and type C-M-x (eval-defun) it throws the error

(scan-error "Unbalanced parentheses" 1 145)

In GNU Emacs 22.2.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2008-03-27 on tfkp07
configured using `configure  '--with-x''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.iso885915
  locale-coding-system: iso-8859-15
  default-enable-multibyte-characters: nil

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: 283-done <at> debbugs.gnu.org
Subject: Re: bug#283: scan-error for keyboard macro
Date: Wed, 21 May 2008 11:36:16 -0400

>> The problem is a known one: the emacs-lisp-mode and its
>> syntax-table does not properly recognize all the escaping going on
>> in character constants. E.g. in ?\C-[, the mode thinks this opens
>> a square bracket expression. If you add \ in front of the [ the
>> problem will disappear.

> Thanks a lot, if the backslash in front of the [ can solve this
> problem, then this is even an adequate fix for an existing
> collection of keyboard macros.

Yes, that should fix it.

> I loaded the file that contains my keyboard macros and I created it
> again with the patched version of insert-kbd-macro. The only
> difference between the old and new file was the \ in front of the [.
> So on that level I can say that your patch has fixed my problem with
> apparently no undesired side effects.

Thanks, installed,


        Stefan

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