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All the Perl that's Practical to Extract and Report

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  • contains some confusing information:

    > [inversion lists] ... especially for those who deal with ranges and Unicode.

    Well, you can do ranges and Unicode perfectly well in Perl 5 (or 6, for that matter), without having to know anything about inversion lists.

    Don't get me wrong: inversion lists are a cool data structure, and the article is fine, and the Cultured Perl series is worth following.

    Inversion lists are a neat concept that happens to match the data of Unicode character database rather nicely