2 HTML Form Parsing

Encodes and decodes according to application/x-www-form-urlencoded rules from the HTML 4.0 specificiation. Encoding maps !, ~, ', (, and ) using hex representations, which is the same choice as made by Java’s URLEncoder.

The form.urlencoded_encode and form.urlencoded_decode functions work on individual strings, while form.list_to_urlencoded and form.urlencoded_to_list handle lists of key–value pairs.

The form.current_separator_mode parameter determines the separator used/recognized between associations in form.list_to_urlencoded, form.urlencoded_to_list, URL.from_string, and URL.to_string. The default value is #'amp_or_semi, which means that both & and ; are treated as separators when parsing, and & is used as a separator when encoding. The #'semi_or_amp mode is similar, but ; is used when encoding. The other modes use/recognize only one of the separators.