Tcl - Re: TK/Expect causes BEEP bacause of <CTL> chars, need to disable or filter <

Author

Re: TK/Expect causes BEEP bacause of <CTL> chars, need to disable or filter <

Glenn Jackman

2007-05-25, 7:09 pm

At 2007-05-25 02:15AM, "dopeAddict@fukdup.com" wrote:
> Basically, Expect is sending strings to the user (in the expect_out(buffer))
> with a certain <CTL> char. Later I use some of the strings to send back to
> the device through expect, but expect (or TK, or the OS) doesn't like the
> <CTL chars> and beeps for every char (millions of beeps).

What else are you doing with those strings? Writing them to a log file?
Are you printing them to the screen with puts or send_user? I suspect
they are Ctl-G (the ascii BEL character)

I assume the functionality is working as expected but the only annoyance
is the beeping.

--
Glenn Jackman
"You can only be young once. But you can always be immature." -- Dave Barry

danielk@hereIam.com

2007-05-25, 7:09 pm

Yes, I set log_user to "1" when I debug, but I've tried it with log_user "0"
and still hear the bell. Yes, the program works, but if I send a command and
it fails for some (legitimate) reason I hear the bell and when I login to
the device through telnet/expect, the login banner at the device through
telnet expect has the vertcal bar at the end of every line (I think CTL-G)
and in the middle of some lines. If I telnet to the same device without
using expect I do not see the CTL chars in the telnet sesion, only the
telnet/expect session.

Maybe some term config setting or something. What about stderr, is there any
way to change this to remove the bell on error? I'll try anythng. I will
play with log_user and see if it helps but I remember trying this a while
back but I've made other changes since then so it's worth trying again.
- Daniel

--
Posted via a free Usenet account from http://www.teranews.com

Sponsored Links