There really isn't any straightforward way to easily automate this.  That's because the Perl program and the editor don't have any control over one another.

If you don't mind being the conduit yourself, and you're just interested in getting data from your Perl program into your text editor (whichever editor that may be), I'd suggest saving the data you want to import to a file.

It's unclear to what extent you know Perl, but if you are just beginning, a good place to look would be open and print, for the output of data.

Then, once you're file has been written, the mechanics of reading it into the editor (or whatever other program) will depend entirely on that program.  In vim and gvim, for example, the command :r will read a file.

Alternatively, you could redirect the results of your Perl program into a file, and then read it in, assuming that the output is exactly what you want to import.

Finally, both in Windows and Linux, if you're in a windowing environment, you can use cut (or copy) and paste the text that you need.

But as far as an automated process goes, especially in an editor (which is waiting for user-input), there isn't really a way to do it.