This is Perl module Variable::Expand::AnyLevel.

INSTALLATION

Variable::Expand::AnyLevel installation is straightforward. If your CPAN shell is set up,
you should just be able to do

    % cpan Variable::Expand::AnyLevel

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

    % perl Makefile.PL
    % make && make test

Then install it:

    % make install

DOCUMENTATION

Variable::Expand::AnyLevel documentation is available as in POD. So you can do:

    % perldoc Variable::Expand::AnyLevel

to read the documentation online with your favorite pager.

Takuya Tsuchida