RosettaCodeData/Task/URL-encoding/Sidef/url-encoding.sidef

func urlencode(str) {
    str.gsub!(%r"([^-A-Za-z0-9_.!~*'() ])", {|a| "%%%02X" % a.ord});
    str.gsub!(' ', '+');
    return str;
}

say urlencode('http://foo bar/');