Re: about showing all characters including non-printable, control etc

[Xah Lee <xahlee@gmail.com>]

if you are using emacs 23, whitespace-mode is bundled.

See:

• How To Use And Setup Emacs's whitespace-mode
  http://xahlee.org/emacs/whitespace-mode.html

  Xah
∑ http://xahlee.org/

☄

On Oct 5, 8:34 am, Harry Putnam <rea...@newsguy.com> wrote:
> Bernardo <bernardo.ba...@pobox.com> writes:
> >>> does M-x apropos RET whitespace RET
> >>> list whitespace-mode?
>
> >> yes... (thanks) under global-whitespace-mode
> >>>From what it says apparently if you have global-whitespace-mode on you
> >> should have a WS on mode line that toggles `visualization' on/off.
>
> >> I have that. `WS' with it on... what am I supposed to see?
> > if you
> > * start Emacs with -Q command line option
> > * switch to *scratch* buffer
> > * type global-whitespace-mode RET
> > * type C-q TAB
> > do you see anything different?
>
> > BTW are you running Emacs in a terminal or as an (X) windows application?
>
> emacs in X
>
> As I've mentioned ... I already have the mode on as evidenced by the
> WS in the mode line... and sure enough I see cool syntax highlight on
> tabs in scratch buffer... however I don't normally read News and Mail
> in the scratch buffer.
>
> I was testing on the snippet from a rc file in this thread
>
> If you go to one of the replies in this thread that has the snippet
> from a rc file...(This one does):
>
>   Message-ID: <87y6nrvq78....@galatea.local>
>
> And paste it here below.  Do you see tabs there... I don't.
> Yet if you run over the uncommented lines with arrow keys you will see
> they are there.
>
> >   # All snapshots will be stored under this root directory.
> >   snapshot_root    /bk/rsnap/home
> >   cmd_cp           /bin/cp
> >   # uncomment this to use the rm program instead of the built-in perl routine
> >   cmd_rm           /bin/rm
>
> That was my error... I should have opened one of the rc files instead
> of checking the snippet in a News message.
>
> When I do open the actual rc file... I see the tabs marked.
>
> But going back to my original comments... comparing to the :l command
> in vim... that would show the tabs regardless of type of buffer.
>
> I guess that's what I expected global-whitespace-mode to do too, but it
> doesn't.
>
> for example... using my home made vi-list functions (That someone on
> this list.. wrote yrs ago)... shows them in this message (or anywhere
> else... I think) no trick modes that might or might not do the job
> involved.
>
> (defun vi-list ()
>   "Simulate a :set list in Vi."
>   (interactive)
>   (standard-display-ascii ?\t "^I")
>   (standard-display-ascii ?\n "$\n")
>   )
>
> (defun vi-nolist ()
>   "Simulate a :set nolist in Vi."
>   (interactive)
>   (standard-display-ascii ?\t "\t")
>   (standard-display-ascii ?\n "\n")
>   )
>
> Apparently global-whitespace-mode is disabled in message mode some
> how.  Maybe others too.
>
> How can I turn those two defuns (vi-list, vi-nolist) into a toggle?
> So I can turn it on off with one key combo.