[Gambas-user] Feature request: Redirecting stderr of a program run in a terminal emulator

[Tobias Boege]

On Sun, 04 Aug 2013, Beno?t Minisini wrote:
> Le 04/08/2013 20:31, Tobias Boege a ?crit :
> >>
> >> Why does ncurses change the behaviour of the standard error stream? I
> >> don't see the reason...
> >>
> >
> > It changes the tty line discipline and stderr just happens to be directed
> > to that tty. Normally the tty has the ONLCR bit set when humans operate with
> > it which means: translate each incoming newline into a carriage-return-
> > newline sequence.
> >
> > NCurses turns this bit off. Try "stty -onlcr" in a terminal to see the
> > result.
> >
> 
> Maybe you can turn this bit on just after NCurses initialisation?
> 

It's possible but ncurses does what it does to have the tty in a known state
and I shouldn't mess around with it behind ncurses' back...

> >> And what do you mean by "redirect the standard error of a program which
> >> is run in a terminal emulator back to the console window in the IDE"?
> >> This is what is already done for all debugged programs!
> >>
> >
> > AFAICS, when I have the "Use a terminal emulator" setting checked in the
> > project options, writing to stderr results in output to the controlling
> > terminal (xterm in my case), not to the IDE console.
> >
> > I have a screenshot attached and the project used to generate the display. I
> > hope this makes it clear enough? I'd like to have an option to send the
> > strings from Error and Debug to the IDE console, not to the terminal
> > emulator.
> >
> > Regards,
> > Tobi
> >
> 
> The debugged program is entirely under the control of the terminal 
> emulator. I don't know how I can tell it to redirect its standard error 
> output to the standard error output of the terminal emulator, or 
> (better) a specific pipe, so that the IDE gets the data... It should be 
> possible with a named pipe, I will try...
> 

Yes, my first thought was way too simple... But actually it should be doable
with something like "exec 2>/.../gambas-named-pipe" just before the program
is executed in the terminal emulator.

Regards,
Tobi