In addition to the raw storage of a large and not-so large file, I've no idea how much memory processing the regex would take. I am also a bit doubful of the likelihood of a regex with several thousand alternatives actually working. The Brute Force & Ignorance method does have its downsides.

Information about American English usage here and here. Floating point issues? Please read this before posting. — emc

In reply to Re^3: Compare 2 files and create a new one if it matches by swampyankee
in thread Compare 2 files and create a new one if it matches by shawshankred

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