RE: [External] : Re: How to get all commands defined in a specified file (or files)?

[Drew Adams <drew.adams@oracle.com>]

> > say that I'd like to define a `execute-extended-command' alternative
> > which would only allow to run commands defined in a specified file.
> How
> > can I get all such commands?  I know about `symbol-file', but I don't
> > know how it works (and it's complicated enough that I'm not sure I
> want
> > to study it ATM;-) - I tried to instrument it for edebug, but a quick
> > run revealed only that it's pretty mysterious).  I also looked at the
> > property plist of a function name and saw that the filename is not
> kept
> > there.  Any hints?
> 
> We have a facility to mark commands as relevant to a major mode or a
> list of major modes.  If your file defines a major mode, you can use
> this for doing what you want.  See the command
> execute-extended-command-for-buffer.  A more general facility is the
> variable read-extended-command-predicate.

Maybe also...

Has the file been loaded, so the commands are already defined?
Or are they at least autoloaded?
Does the file use a library-specific prefix for all of its
function names?

If so, you can filter all commands (`commandp') according
to that library prefix.