Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss
How to do channel redirection?
2 views
Skip to first unread message
pmarin
Dec 22, 2009, 6:42:42 AM12/22/09
to
I often need to redirect a tcl function/command that write to the
stdout, to another channel.
For example if I want to convert the output of a command to a string
(It could be very easy to do If I can do channel redirection).
How can I do it?
stdout, to another channel.
For example if I want to convert the output of a command to a string
(It could be very easy to do If I can do channel redirection).
How can I do it?
Example:
Imagine the command "toString":
>set output [toString { puts "hello"} ]
>set output
"hello"
Cheers.
Happy Christmas!
pmarin.
Jan Kandziora
Dec 22, 2009, 9:26:49 AM12/22/09
to
pmarin schrieb:
> I often need to redirect a tcl function/command that write to the
> stdout, to another channel.
> For example if I want to convert the output of a command to a string
> (It could be very easy to do If I can do channel redirection).
> How can I do it?
>
If you only need to capture puts (not fcopy or others), easiest way is to
redefine the puts procedure. See http://wiki.tcl.tk/8502 for an example
which redirects all puts output to a text widget.
> I often need to redirect a tcl function/command that write to the
> stdout, to another channel.
> For example if I want to convert the output of a command to a string
> (It could be very easy to do If I can do channel redirection).
> How can I do it?
>
redefine the puts procedure. See http://wiki.tcl.tk/8502 for an example
which redirects all puts output to a text widget.
Kind regards
Jan
0 new messages