From bug-octave-request at bevo dot che dot wisc dot edu  Tue Jan 25 12:43:23 2000
Subject: Bug in Octave major-mode for Emacs
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Stephen Eglen <stephen at anc dot ed dot ac dot uk>
Cc: Giuseppe Modugno <giuseppe at diana dot it>, bug-octave@bevo.che.wisc.edu
Date: Tue, 25 Jan 2000 12:43:43 -0600 (CST)

On 25-Jan-2000, Stephen Eglen <stephen at anc dot ed dot ac dot uk> wrote:

|  > It took me a while to figure out what was causing the bug because you
|  > didn't say precisely how to reproduce it.  My guess is that you see
|  > this problem when you are typing comments that start with `%', but not
|  > if they start with `#'.  If that is not the case, then please provide
|  > a precise test case that I can use to reproduce the problem.
|  > 
|  > I think the following change is appropriate.  I don't know why `%'
|  > would have been defined as punctuation instead of as a comment
|  > starter, since it is not used in Octave for anything but starting
|  > comments.
| 
| hi,
| 
| When I recently examined the lisp code, I too wondered why % was
| defined as a punctuation character.  I'm not 100% sure, but I think it
| may break other things if it is defined as punctuation, since % is
| used as things other than comments, e.g. %s in printf commands.
| 
| e.g. I recall if you had somethign like:
| 
| printf("%s", str)
| 
| and then with the cursor at the end of the line, hit M-;
| (octave-indent-for-comment) it then messed up the indentation on that
| line, rather than doing something desired like:
| 
| printf("%s", str)                     ;

You are right.

I undid my previous change and added the following comment to the
sources:

  ;; XXX FIXME XXX -- the syntax mode for `%' is punctuation instead of
  ;; begin-comment because if it is begin-comment, then typing M-;
  ;; (octave-indent-for-comment) on lines like
  ;;
  ;;  sprintf ("%d", foobar);
  ;;
  ;; causes them to be improperly indented (the `%' is moved over to the
  ;; comment-column).

| I'll check it out later (sorry, bit busy now).

Don't worry.  It's not critical.

Thanks,

jwe



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