Re: Keybinding C-M-a for LaTeX-find-matching-begin does not work!

[Heiko Schröder]

I have forgotten to tell you, that C-hk gives information for C-M-e and 
tells, that this key is bound to LaTeX-find-matching-end.

But C-hk gives NO information for C-M-a.  As if this key does not 
exist.  But if that would be the case, normally you are informed, that 
the key is unbound.

I copied the answer for C-hv for beginning-of-defun-funciton.

If I click on the hyperlink begin-of-defun, I get this:


============= snip =================

beginning-of-defun is an interactive compiled Lisp function in
‘lisp.el’.

It is bound to <C-M-home>, C-M-a, ESC <C-home>.

(beginning-of-defun &optional ARG)

Move backward to the beginning of a defun.
With ARG, do it that many times.  Negative ARG means move forward
to the ARGth following beginning of defun.

If search is successful, return t; point ends up at the beginning
of the line where the search succeeded.  Otherwise, return nil.

When ‘open-paren-in-column-0-is-defun-start’ is non-nil, a defun
is assumed to start where there is a char with open-parenthesis
syntax at the beginning of a line.  If ‘defun-prompt-regexp’ is
non-nil, then a string which matches that regexp may also precede
the open-parenthesis.  If ‘defun-prompt-regexp’ and
‘open-paren-in-column-0-is-defun-start’ are both nil, this
function instead finds an open-paren at the outermost level.

If the variable ‘beginning-of-defun-function’ is non-nil, its
value is called as a function, with argument ARG, to find the
defun’s beginning.

Regardless of the values of ‘defun-prompt-regexp’ and
‘beginning-of-defun-function’, point always moves to the
beginning of the line whenever the search is successful.

========= snap  ==================

There it is told, as you said, that C-M-a is bound to 
beginning-of-defun.  But why does Emacs not tell it, if you want to get 
the information by C-hk?

I think, that the whole thing is a bit annoying and could have been 
avoided, I must admit.

Thanks very much for you help.

Regards Heiko