ugexe / text--levenshtein--xs Goto Github PK

Now using version 0.501 of Text::Levenshtein::XS from CPAN.
The fix for #10 leads to the correct result when using:

distance('ACGTAG', 'AGTAG', 2) # returns 1 

But if the cut-off is the same as the result the bug still occurs:

distance('ACGTAG', 'AGTAG', 1) # should be 1 is undef 

I'm having fun swapping issues :)

distance('cuba','thing'); #undef, should be 5
distance('cuba','thing',10); #5

I use Text::Levenshtein::XS on Ubuntu 15.04 (64bit) installed via CPAN:

cpan[1]> i Text::Levenshtein::XS
Going to read '/home/markus/.cpan/Metadata'
  Database was generated on Thu, 27 Aug 2015 15:41:02 GMT
Module id = Text::Levenshtein::XS
    CPAN_USERID  UGEXE (Nick Logan <[email protected]>)
    CPAN_VERSION 0.43
    CPAN_FILE    U/UG/UGEXE/Text-Levenshtein-XS-0.43.tar.gz
    UPLOAD_DATE  2014-10-15
    MANPAGE      Text::Levenshtein::XS - Calculate edit distance based on insertion, deletion, substitution, and transposition
    INST_FILE    /home/markus/perl5/lib/perl5/x86_64-linux-gnu-thread-multi/Text/Levenshtein/XS.pm
    INST_VERSION 0.43

When passing a third parameter to the distance function there are two kinds of unexpected behaviour:

1. distance is smaller than cut-off and the result is still not reported, eg:

   distance('ACGTAG', 'AGTAG', 2) # should be 1 is undef 

2. distance is larger than cut-off and the result is still returned, eg:

   distance('ACGTAG', 'TCGG', 2) # is 3 should be undef

Unfortunately I could not verify that this problem still exists in version 0.46 on GitHub as I was unable to compile.