Thanks for the quick reply. I actually don't want it to match this line. The line I'm looking for should look something like:

S 0.0 0.0 (OUTPUT)

How is this matching at all when the input doesn't have a first character of "S"? Shouldn't the ^S be enough to say that this line does not match?

Also, it uses \(\s*INOUT|OUTPUT\s*\). How can this match when there are non whitespaces between the opening ( and the string OUTPUT?

My rules I guess would be

Starts with S
Two floats (could be negative or integer portion only)
Opening parentheses possibly followed by whitespace
Either INOUT or OUTPUT (case insensitive) possibly followed by whitespace
Closing parentheses

I may be very confused here, so your help is much appreciated.

In reply to Re^2: Incorrect Pattern Matching Behavior by T.G. Cornholio
in thread Incorrect Pattern Matching Behavior by T.G. Cornholio

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