Re: How does M-x completion works

[Kevin Rodgers]

Tim X wrote:
> Trying to remove all definitions of interactive functions that are
> thought to be unnecessary will fail and is a pointless exercise. It will
> never result in a small/convenient number of commands being shown with
> just M-x <tab>. I'd suspect that even just the C built-in commands alone
> would likely be too numerous and you cannot remove them. This approach
> is essentially futile. 

I don't think that's what the OP is asking for.  Rather, why not remove
the function binding from symbols that would autoload an unavailable lisp
library (such as the ones the OP has already removed):

(mapatoms (lambda (symbol)
            (let (function)
              (when (and (fboundp symbol)
                         (setq function (symbol-function symbol))
                         (consp function)
                         ;; (car function)
                         (eq (car function) 'autoload)
                         ;; (cadr function)
                         (stringp (cadr function))
                         (not (locate-library (cadr function))))
                ;; (message "invalid autoload: %s: %s" symbol (cadr function))
                (fmakunbound symbol)))))

--
Kevin Rodgers
Denver, Colorado, USA