similar to TT2.
expand_cgi works with CGI.pm, Apache::Request or anything with an appropriate
"param" method. Or you can use expand_hash directly.
If you prefer to use a different flattening convention then CGI::Expand can
be subclassed.
WWW: http://search.cpan.org/dist/CGI-Expand
PR: ports/107780
Submitted by: Fernan Aguero <fernan at iib.unsam.edu.ar>
