First your solution works perfectly for me. Next your are right that the some of my "capturing" doesnt make any sense and I was just testing few things by capturing it.

Next I dont understand how to use the negative variable width look-back with (*SKIP)(*FAIL) when I have a huge regex. For e.g. 

$Line =~ /^(Some_RegEx) (Some_RegEx) (Some_RegEx)(?<!foo.*|some text) 
+$Jrnl (Some_RegEx)$/;

[download]
Appreciate any pointers in this regard.

In reply to Re^2: Another Look behind by dominic01
in thread Another Look behind by dominic01

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