Hi, I'm having some troubles to extract an expresiion from a $line. The type of expression is, for example: 
KP_what_I_want (space)
or
KP_what_I_want(
or
KP_what_I_want (
or
KP_what_I_want +
etc...

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I'm using: 
my ($exp) = 
    $line =~ m/ 
                    KP_          # Required 
                    (.*)            # Capture Desired Output
                    (?:\s)?      # Optional - Do not capture
            (?:\()?         # Optional - Do not capture
     /xi;

[download]
It's not working... it extracts the all expression ( without the KP_) Any ideas? Thanks, Kepler

In reply to String extract 2 by kepler

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