Re: [Matlab-emacs-discuss] File mode specification error: (wrong-type-argument stringp nil)

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I just tried your Revision 1.30, and it works with no errors on doing
'emacs blah.m', or loading a .m file with an already open emacs.

Thanks for the fix!

You're right that the error I got with Rev 1.29 was different from
before. With Revision 1.29, I got:

"File mode specification error: (void-variable mlfile)"

Whereas with Revisions <= 1.28, but >= 1.14, I got:

"File mode specification error: (wrong-type-argument stringp nil)"

Debug output for this is:

Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  file-name-directory(nil)
  (expand-file-name "toolbox/emacsinit.m" (file-name-directory
(locate-library "matlab")))
  (let ((dir ...)) (file-exists-p dir))
  (defvar matlab-shell-use-emacs-toolbox (let (...) (file-exists-p
dir)) "Add the `matlab-shell' MATLAB toolbox to the MATLAB path on
startup.")
  eval-buffer(#<buffer  *load*> nil "/home/alan/matlab.el" nil t)  ;
Reading at buffer position 152834
  load-with-code-conversion("/home/alan/matlab.el" "/home/alan/matlab.el" nil t)
  matlab-mode()
  set-auto-mode-0(matlab-mode nil)
  set-auto-mode()
  normal-mode(t)
  after-find-file(t t)
  find-file-noselect-1(#<buffer blah.m> "~/blah.m" nil nil "~/blah.m" nil)
  find-file-noselect("~/blah.m" nil nil t)
  find-file("~/blah.m" t)
  call-interactively(find-file nil nil)

But both these errors have gone away with Rev 1.30.

On Wed, Mar 23, 2011 at 3:30 PM, Eric Ludlam <Eri...@ma...> wrote:
> I was able to reproduce this explicitly when I executed the code by hand, but for some reason it didn't show up when I loaded in matlab files which is how that got checked in today.  I fixed it and checked it in.
>
> I don't know if that fixed your original issue since the error is different, and you didn't have that patch when you had the stringp issue.
>
> Eric
>
> -----Original Message-----
> From: Alan [mailto:ora...@gm...]
> Sent: Wednesday, March 23, 2011 2:56 PM
> To: mat...@li...
> Subject: Re: [Matlab-emacs-discuss] File mode specification error: (wrong-type-argument stringp nil)
>
> I just realized I forgot to CC the email list. Here is the reply I
> sent to Eric. Sorry to Eric for getting 2 emails!
>
> Thanks for the reply.
>
> Using the latest matlab.el (Revision 1.29), here is the output after
> starting 'emacs -nw', then doing M-x toggle-debug-on-error, then C-x
> C-f blah.m to create or find a non-existent text file "blah.m":
>
> Debugger entered--Lisp error: (void-variable mlfile)
>  (or mlfile "")
>  (file-name-directory (or mlfile ""))
>  (expand-file-name "toolbox/emacsinit.m" (file-name-directory (or mlfile "")))
>  (let ((mlfile ...) (dir ...)) (and mlfile (file-exists-p dir)))
>  (defvar matlab-shell-use-emacs-toolbox (let (... ...) (and
> mlfile...)) "Add the `matlab-shell' MATLAB toolbox to the MATLAB path
> on startup.")
>  eval-buffer(#<buffer  *load*> nil "/home/alan/.matlab.el" nil t)  ;
> Reading at buffer position 152939
>  load-with-code-conversion("/home/alan/.matlab.el"
> "/home/alan/.matlab.el" nil t)
>  matlab-mode()
>  set-auto-mode-0(matlab-mode nil)
>  set-auto-mode()
>  normal-mode(t)
>  after-find-file(t t)
>  find-file-noselect-1(#<buffer blah.m> "~/blah.m" nil nil "~/blah.m" nil)
>  find-file-noselect("~/blah.m" nil nil t)
>  find-file("~/blah.m" t)
>  call-interactively(find-file nil nil)
>
>
> Some further info about my setup: I renamed the file matlab.el to
> .matlab.el, and used the following code in my .emacs file:
>
> (autoload 'matlab-mode "~/.matlab" "Enter MATLAB mode." t)
> (setq auto-mode-alist (cons '("\\.m\\'" . matlab-mode)
> auto-mode-alist))
> (autoload 'matlab-shell "~/.matlab" "Interactive MATLAB mode." t)
>
>
> Any suggestions or hints?
>
> Thanks,
> Alan
>
> On Wed, Mar 23, 2011 at 9:01 AM, Eric Ludlam <Eri...@ma...> wrote:
>> Hi,
>>
>>  Can you do:
>>
>> M-x toggle-debug-on-error RET
>>
>> and reproduce the error?  The resulting stack will help identify the culprit.
>>
>> Eric
>>
>> -----Original Message-----
>> From: Alan [mailto:ora...@gm...]
>> Sent: Sunday, March 20, 2011 12:57 AM
>> To: mat...@li...
>> Subject: [Matlab-emacs-discuss] File mode specification error: (wrong-type-argument stringp nil)
>>
>> Hi,
>>
>> I'm trying to use just the matlab.el file for editing code. However,
>> if I use any version >= 3.3.0 (corresponding to revision number >=
>> 1.14), I get the following error:
>>
>> File mode specification error: (wrong-type-argument stringp nil)
>>
>> whenever I try to open a .m file in emacs. This happens with emacs
>> versions 21 and 23.
>>
>> Has this happened to anyone before? Know of any fixes?
>>
>> Thanks for your help,
>>
>> Alan
>>
>> ------------------------------------------------------------------------------
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