Hi Monks,
i'm here to seek your wisdom on a certain issue. I'm implementing a text processing script where the input file looks like 
"A","B","C","D"
"A","B","C","D,E,F"
"A","B","C","D"
"A","B","C","D,R,T"

[download]
Now , i need help with regex pattern matching(i have to admit .i'm not very good at it). i need to check the last column entry and if that has multiple values separated by commas(fr eg: "D,E,F" and "D,R,T" in this example), then i need to insert row between the next row and display the entry there... so, in short the o/p should look something like: 
"A","B","C","D"
"A","B","C","D"
            "E"
            "F"  
"A","B","C","D"
"A","B","C","D"
            "R"
            "T"

[download]
PLease help.. Some pointers and tips would be great ..!! thanks in advance.. :)

In reply to regex pattern match by reaper9187

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