This is the why GrandFather is using "local $/;" in his script which is referenced by pvaldes reply.

The proper way to reference GrandFathers reply is to respond to GrandFathers reply and copy/paste the most critical portion (local $/)

What pvaldes has done is update his reply without notice

This is his original node

match 3 or more carriage returns... maybe like this?

<code>if =~ m/[\n]{3,}/</code>
[download]