This is Perl module ViV.

INSTALLATION

ViV installation is straightforward. If your CPAN shell is set up,
you should just be able to do

    % cpan ViV

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

    % perl Makefile.PL
    % make && make test

Then install it:

    % make install

DOCUMENTATION

ViV documentation is available as in POD. So you can do:

    % perldoc ViV

to read the documentation online with your favorite pager.

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