Another ... maybe saner way ... to do it is to attach the application explicitely to another TTY.

Ideally a module could sense if it's run within the debugger and automatically set the TTY.

For instance xterm -e perl -e 'print `tty`;sleep' will show the TTY of this terminal ( /dev/pts/5 in this case) and sleep indefintely to not disturb the TTY output.

the following script hardcodes that TTY into TRL:

use Term::ReadLine;
my $tty='/dev/pts/5';

open my $out,'>',$tty;
open my $in,'<',$tty;


my $term = Term::ReadLine->new('Simple Perl calc',$in,$out);
my $prompt = "Enter code: ";
my $OUT = $term->OUT || \*STDOUT;
while ( $_ = $term->readline($prompt) ) {
  my $res = eval($_);
  warn $@ if $@;
  print $OUT $res, "\n" unless $@;
  $term->addhistory($_) if /\S/;
}

[download]

I have problems to figure out a nice way to automize it. Ideally I'd get the TTY of the spawned xterm returned.

The only thing I figured out at the moment is to look into the proces table

> ls -l /proc/31965/fd/
insgesamt 0
lrwx------ 1 lanx lanx 64 Dez  1 17:18 0 -> /dev/pts/5
lrwx------ 1 lanx lanx 64 Dez  1 17:18 1 -> /dev/pts/5
lrwx------ 1 lanx lanx 64 Dez  1 17:18 2 -> /dev/pts/5

[download]

Cheers Rolf

(addicted to the Perl Programming Language and ☆☆☆☆ :)

In reply to Re: How to perldebug a Term::ReadLine application (the other way round) by LanX
in thread How to perldebug a Term::ReadLine application by LanX

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