Hi, I recently started learning perl because I need to write some code to modify some netlists. For now, I'm trying to figure out a script written by someone else. I mostly understand the logic, I'm stuck at a point where he uses a comparison. 
if ($val =~ /^[ ]+Pin:[ ]*([^\.]*)\.([^ ]*)[ ]*out/) {
            $cellname = $mod->find_cell($1);
            $pin_connected = $2;
          }

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How would I go about deciphering the thing after $val? Also, the verilog-perl module is used here. I'm struggling to figure out what the "$1" does in $mod->find_cell($1) Is it something related to perl? I could not find anything in the verilog perl module documentation. Thanks.

In reply to Beginner confused with string matching by mavericknik

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