I tried this with skeleton, and got similar problems.  I cannot trigger the
abbrev with _ character even it do listed in the abbrev list.

But when I bound the abbrev to character i, it works fine.

(define-skeleton underscore
  "when I type _, Emacs writes _{}"
  ""
  "_{}"
)

(define-abbrev org-mode-abbrev-table "_" "" 'underscore)

(define-abbrev org-mode-abbrev-table "i"  "" 'underscore)


(org-mode-abbrev-table)

"1exp"         3    ""                       1exp
"1prop"        4    ""                       1prop
"1src"         6    ""                       1src
"6W"           1    ""                       6W
"^"            0    ""                       carrot
"_"            0    ""                       underscore
"bexp"         11   "BEGIN_EXAMPLE"
"eexp"         10   "END_EXAMPLE"
"i"            3    ""                       underscore
"iexp"         10   ""                       1exp
"ihtml"        1    ""                       insert-emacser-code
"iprop"        0    ""                       1prop
"isrc"         8    ""                       1src




2012/9/1 Thorsten Jolitz <tjolitz@googlemail.com>

> etienne mann <etienne.mann@gmail.com> writes:
>
> Hello,
>
> > 1) I am struggeling with my .emacs file: I want that when I press "_"
> > emacs write "_{ }".
> > So I write this in my .emacs file
> >
> > (defun souligne () (interactive)
> >          (insert "_{}") (forward-char -1))
> > (global-set-key "_" 'souligne)
> >
> > It does not work. What is strange is that if I put
> > (defun souligne () (interactive)
> >          (insert "_{}") (forward-char -1))
> > (global-set-key "z" 'souligne)
> > when I press "z", emacs write "_{}" !!!
> >
> > So in emacs, I try to M-x global-unset-key then _ but it does not work
> > in emacs. the button _ still works !!!
> >
> > I also wanted to press ^ and get ^{} and press $ and have $ $ but it
> > not works !
> >
> > Notice that for ( ) or {} it works fine
> >
> > 2) my second question is about an historical file and menu.Is it
> > possible that emacs have a menu with the last 10 files that I opened ?
>
> Just a curiosity - I'm currently writing an Emacs mode for the
> PicoLisp-Wiki that requires exactly this syntax:
>
> ,----
> | _{}
> | ^{}
> | !{}
> `----
>
> (and quite a few others ...)
>
> Are we, just by casuality, working on the same thing without being
> aware of it?
>
> My mode is almost done and lets you insert and fontificate these
> constructs. I only need to add a few commands. I probably publish a Beta
> version this weekend on Github, will announce it here on the list.
>
> --
> cheers,
> Thorsten
>
>
>


-- 
M-x Thinks