Provides functions to parse and compose URI strings. The following functions are provided:
($scheme, $auth, $path, $query, $frag) = uri_split($uri)
Breaks up a URI string into its component parts. An "undef" value is returned for those parts that
are not present. The $path part is always present (but can be the empty string) and is thus never
returned as "undef".
No sensible value is returned if this function is called in a scalar context.
$uri = uri_join($scheme, $auth, $path, $query, $frag)
Puts together a URI string from its parts. Missing parts are signaled by passing "undef" for the
corresponding argument.
Minimal escaping is applied to parts that contain reserved chars that would confuse a parser. For
instance, any occurrence of '?' or '#' in $path is always escaped, as it would otherwise be parsed
back as a query or fragment.