Re: Execute a string as a command

[Tim Johnson]

* Random832 <random832@fastmail.com> [151105 19:52]:
> Tim Johnson <tim@akwebsoft.com> writes:
> 
> > Example : A string has the value of :
> > "toggle-truncate-lines"
> >
> > (setq string-wants-to-be-a-command "toggle-truncate-lines")
> >
> > How may I convert 'string-wants-to-be-a-command to a command:
> > I.E. => (toggle-truncate-lines) to be used programmatically?
> >
> > thanks
<...> 
> But why are you storing a string instead of the command object
> (symbol/function/lambda) anyway?
 
   Because I'm a total noob when I comes to using menu objects as
   per tmm-prompt (my preference) and x-popup-menu, and I have had
   problems finding instructions for my needs as illustrated below.

> And then you can call it with funcall or call-interactively.
> 
> funcall requires you to specify the arguments, so only commands
> that don't require an argument will work. To read the arguments
> from the keyboard instead, use call-interactively.

Here is an example of what could be a working function 'interning'
a string :
(defun tj-toggle-funcs ()
  "Toggle functions"
  (interactive)
  (let ((menu
         '("" ("" ("Transient Mark Mode" . "transient-mark-mode"))
               ("Truncate Lines" . "toggle-truncate-lines")
               ("Show Tabs" .  "toggle-tabs-font-lock"))))
        (choice ))
    (setq choice (tmm-prompt menu))
    (if choice
        (call-interactively (intern choice)))))

My preference *would* be that a command object be read from the
'menu structure, but wasn't able to make it work.       
So my next step is to figure out how to place a command object as a
value instead of a string... and then evaluate it properly.

thanks, late here, my response would be in 9-10 hours..

-- 
Tim 
http://www.akwebsoft.com, http://www.tj49.com