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Previously this was used inconsistently in us vs eu. Skipping characters based on the pattern no longer necessary, since the OCR does this for us.
Each line is a possible lp pattern organized by region/state and then likelihood. The parser goes through each line and tries to match @ = any letter # = any number ? = a skip position (can be anything, but remove it if encountered) [A-FGZ] is just a single char position with specific letter requirements. In this example, the regex defines characters ABCDEFGZ