Re: Re: parent wants to capture output from a spawned child

Thanks for the help, I ended up using "open" instead of "pipe" because pipe was slower (not sure if I am doing something wrong with it). Quick follow up question? I notice "push @msgs, <$_> for values %kids" deference the filehandle where as something like: " for (values %kids) { print "<$_>\n"; }" returns a ref. Is my assumption correct?

Comment on Re: Re: parent wants to capture output from a spawned child

Replies are listed 'Best First'.
Re: Re: Re: parent wants to capture output from a spawned child by Zaxo (Archbishop) on Nov 26, 2001 at 02:02 UTC
Nearly right. In `push @msgs, <$_> for values %kids;` the diamond operator is evaluated in list context, giving you all messages. In `print "<$_>\n";` the diamond is not evaluated inside double quotes. Instead, you get literal '<' followed by the interpolated $_, then literal '>'. $_ is a filehandle, a stringified ref to a typeglob is printed. You can do what I think you want with `print "@{[<$_>]}\n";` or just `print <$_>;` After Compline, Zaxo	[reply] [d/l] [select]

Replies are listed 'Best First'.

Re: Re: Re: parent wants to capture output from a spawned child
by Zaxo (Archbishop) on Nov 26, 2001 at 02:02 UTC

Nearly right. In push @msgs, <$_> for values %kids; the diamond operator is evaluated in list context, giving you all messages. In print "<$_>\n"; the diamond is not evaluated inside double quotes. Instead, you get literal '<' followed by the interpolated $_, then literal '>'. $_ is a filehandle, a stringified ref to a typeglob is printed. You can do what I think you want with print "@{[<$_>]}\n"; or just print <$_>;

After Compline,
Zaxo

[reply]
[d/l]
[select]