Subject: Pico Question - CTRL-SPACE

From: "Sherry H. Lake" <[email-masked]>
Date: Fri, 22 Jul 1994 10:41:45 -0400 (EDT)

I received the following question from one of our users.  Can anyone offer
my an advice to give him?  I don't think the control sequences can be
changed in pico.  When I tried CTRL-SPACE, using vt100 emulation with
telnet program CUTCP, I just get a space (CTRL-@ does nothing).
 
> I'm getting a bit irritated at a misfeature of pico. Three quick 
> control-spaces wakes up my modem, dropping the connection. Control-space
> is used by pico to navigate. Could it be changed? 

Thanks....
Sherry H. Lake			[email-masked]
Electronic Mail Consultant
George Mason University

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From: Ed Greshko <[email-masked]>
Date: Sat, 23 Jul 1994 00:16:13 +0800 (TPE)

> > is used by pico to navigate. Could it be changed? 

	Hummm.....I've never seen that happen....and I've used pine and
pico over a modem for about 1.5 years now.  Have you considered that
maybe the problem lies with the modem configuration?  In many cases
a modem is configured such that three + symbols will return it to 
command mode.  Suggest you check your register settings.  I'm
at home and don't have my modem book handy.......

					Ed

Edward M. Greshko			Technical Manager, Electronic Commerce
					Control Data Asia/Pacific Region
Voice: +886-2-715-2222 x287		6/F, 131 Nanking East Road, Section 3
FAX  : +886-2-712-9197			Taipei, Taiwan R.O.C

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From: [email-masked] (Barry Bouwsma)
Date: 24 Jul 1994 15:34:56 GMT

>telnet program CUTCP, I just get a space (CTRL-@ does nothing).

    Strictly speaking, there is no such thing as CONTROL-SPACE.  However,
in practice, it appears that a number of keyboards generate the NUL
character (which is CTRL-@ ) with it.
    It's quite possible that a number of terminal emulators or telnet
programs won't send a NUL.  (In part, that's why I wondered about binding
the Emacs ESC sequence to this function.)  Many of the non-alphabetic
control keys just don't generate the correct character...

>> is used by pico to navigate. Could it be changed? 

    There is an S register, normally set to 043 (the + character) which
determines the escape character your modem responds to (sorry, my 300 baud
acoustic coupler did not come with instruction manual).  To disable this,
one should set it to a value of 128 or above.  It appears that it has
been set to 0, which happens to be the numeric position of the NUL
character, instead of disabling the escape sequence.

    Come to think of it, I've wondered why an 8th-bit-set character would
not then put the modem into command mode...  The pleasures of living in
an ASCII-only world, I tell you...

-- 
 Barry Bouwsma, in Ann Arbor Michigan, soon to be back biking eastern Europe
    Please direct mail to  <[email-masked]> (MIME-aware)
Unemployable System Cracker seeking work; food; chocolate; Czech pastries,
ice cream, and beer; travel partner; free airline tickets; and lots of money

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From: [email-masked]
Date: 25 Jul 1994 16:26:49 GMT

> telnet program CUTCP, I just get a space (CTRL-@ does nothing).

    CTRL-SPACE is just one of the possible ways to enter this
    character.  Other possibilities, depending on how your emulator is
    set up, might be CTRL-@, CTRL-` [grave-accent], or even CTRL-0
    [zero].  (I'm assuming that you pressed "shift" together with
    "ctrl" when you tried CTRL-@, since @ is a shifted character).

> is used by pico to navigate. Could it be changed? 

    If this is a Hayes-command-set modem, you can change the wake-up
    character by setting S-register 2.  The usual wake-up sequence is
    "+++", corresponding to S2=43.  It looks like this modem has been
    set to S2=0.  To disable the wake-up character entirely, use
    S2=255.

Andy

-- 
Practice random kindness and senseless acts of beauty.        (Anne Herbert)

Andy Behrens
Burlington Coat Factory, Schoolhouse Rd., Etna, N.H. 03750    (603) 643-2800