This is Perl module HTML::MobileJp::Filter.
INSTALLATION
HTML::MobileJp::Filter installation is straightforward. If your CPAN shell is set up,
you should just be able to do
    % cpan HTML::MobileJp::Filter
Download it, unpack it, then build it as per the usual:
    % perl Makefile.PL
    % make && make test
Then install it:
    % make install
DOCUMENTATION
HTML::MobileJp::Filter documentation is available as in POD. So you can do:
    % perldoc HTML::MobileJp::Filter
to read the documentation online with your favorite pager.
Naoki Tomita