Perl module that implements a hash whose keys can have either single or multiple values, and which can process url-encoded data.

Perl module that interfaces to a common text file format which stores records as named and url-escaped key=value pairs.

Perl module that gathers, parses, and manages user input data, including query strings, posts, searches, cookies, and shell arguments, as well as providing cleaner access to many environment variables.

Perl module that maintains the components of a new web page, including HTTP headers, with which it can assemble and output complete page HTML or redirection headers.

Perl module that maintains a predefined html input form definition with which it can generate form html, complete with persistant and error-checked user input, as well as formatted reports of the user input in html or plain text format.

Perl module that can create any HTML tags, as well as groups of or just parts of them, and complete html headers or footers.