From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Charles C. Berry" <ccberry@ucsd.edu>
Subject: Re: Wrong type argument: characterp, 134217782 (??)
Date: Sat, 23 Jan 2016 17:11:10 -0800
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To: Eric S Fraga <e.fraga@ucl.ac.uk>
Cc: emacs-orgmode@gnu.org

On Sat, 23 Jan 2016, Eric S Fraga wrote:

> On Saturday, 23 Jan 2016 at 14:36, vendo.libri@libero.it wrote:
>
> [...]
>
>> Then I discovered that the backquote symbol was not
>> recognized. Everytime I press it, I get the 'Wrong type argument:
>> characterp, 134217782' message in the mini-buffer.
>
> Maybe try
>
>  M-x toggle-debug-on-error
>
> and see where that error is arising to see if that gives us a hint as to
> what may be wrong.  I am not sure if the cdlatex code you downloaded has
> been updated for later versions of emacs...


Funny, I get `apply: Wrong type argument: characterp, 134217785'

(not `134217782'), which is what M-9 is recognized as:

#+BEGIN_SRC emacs-lisp
(read-char) ; type C-c C-c y M-9 *here*
#+END_SRC

#+RESULTS:
: 134217785

on my MacBook and that makes some sense as cdlatex.el uses `(read-char)' 
once it is triggered by a back tic. And I guess that `read-char' is immune 
to keymapping for good reason.

For the record, this happens with

#+BEGIN_SRC elisp
   (define-key key-translation-map (kbd "M-9") (kbd "`"))
#+END_SRC


set in org-cdlatex-mode when the first back tic (or M-9) is followed by a 
M-9 and it also happens for other key events that do not map to characters 
like `C-S-s' after the back tic.

So the easiest fix is *don't do that*.

I suppose this counts as a bug in cdlatex, but it seems easy enough to 
work around.

HTH,

Chuck