How to "unread" STDIN?

[KKramsch]

Is there any way to "unread" a string back into STDIN?

Thanks!

Karl

 

[Tad McClellan]

Is there any way to "unread" a string back into STDIN?

Why do you think you need to unread STDIN?

 

[KKramsch]

Why do you think you need to unread STDIN?

I'm trying to understand a large (and poorly documented program)
by stepping through it using DB. In various places, the program
reads from <STDIN>. It would make my life a whole lot easier if
I didn't have to restart DB every time I wanted to affect what the
program reads from <STDIN>.

Karl

 

[Peter Scott]

I'm trying to understand a large (and poorly documented program)
by stepping through it using DB. In various places, the program
reads from <STDIN>. It would make my life a whole lot easier if
I didn't have to restart DB every time I wanted to affect what the
program reads from <STDIN>.

Step to the place the program reads from STDIN, and provided
it's a simple variable assignment like, say,

while (<STDIN>)

then step just past that statement and then put into the input
variable whatever you'd like it to have read instead, e.g.,

DB<1> $_ = "fnord\n"

And then continue.