ns_urldecode - URL decoding
This command decodes a string according to the rules for URL encoding defined in RFC #1738, Uniform Resource Locators.
The option -charset can be used to specify the character set of the decode operation. In case the string cannot be decoded into the specified charset (on most platforms UTF-8) an exception is raised.
In cases, where no explicit -charset is specified, the option -fallbackcharset can be used to specify an alternative character set when the conversion of the querystring leads to invalid UTF-8. Instead of raising an exception, a second attempt of decoding the query string is made with the fallback charset. In contrary to ns_getform and ns_parsequery the configuration parameter is not used formfallbackcharset, since this happens outside automatic form processing.
The option -part is used to specify the query (default) or path encoding.