This is Perl module Lingua::JA::NormalizeText.

INSTALLATION

Lingua::JA::NormalizeText installation is straightforward. If your CPAN shell is set up,
you should just be able to do

    % cpan Lingua::JA::NormalizeText

Download it, unpack it, then build it as per the usual:

    % perl Makefile.PL
    % make && make test

Then install it:

    % make install

DOCUMENTATION

Lingua::JA::NormalizeText documentation is available as in POD. So you can do:

    % perldoc Lingua::JA::NormalizeText

to read the documentation online with your favorite pager.

pawa