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Text::Levenshtein::Damerau::PP(3) User Contributed Perl Documentation Text::Levenshtein::Damerau::PP(3)

Text::Levenshtein::Damerau::PP - Pure Perl Damerau Levenshtein edit distance.

        use Text::Levenshtein::Damerau::PP qw/pp_edistance/;

        print pp_edistance('Neil','Niel');
        # prints 1

Returns the true Damerau Levenshtein edit distance of strings with adjacent transpositions. Pure Perl implementation. Works correctly with utf8.

        use Text::Levenshtein::Damerau::PP qw/pp_edistance/;
        use utf8;

        pp_edistance('ⓕⓞⓤⓡ','ⓕⓤⓞⓡ'), 
        # prints 1

Arguments: source string and target string.
OPTIONAL 3rd argument int (max distance; only return results with $int distance or less). 0 = unlimited. Default = 0.

Returns: int that represents the edit distance between the two argument. Stops calculations and returns -1 if max distance is set and reached.

Function to take the edit distance between a source and target string. Contains the actual algorithm implementation.

        use Text::Levenshtein::Damerau::PP qw/pp_edistance/;
        print pp_edistance('Neil','Niel');
        # prints 1

        print pp_edistance('Neil','Nielx',1);
        # prints -1

  • Text::Levenshtein::Damerau
  • Text::Levenshtein::Damerau::XS

Please report bugs to:

<https://rt.cpan.org/Public/Dist/Display.html?Name=Text-Levenshtein-Damerau>

Nick Logan <ug@skunkds.com>

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
2013-06-15 perl v5.32.1

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