assert(percentEncode("IDontNeedNoPercentEncoding") == "IDontNeedNoPercentEncoding"); assert(percentEncode("~~--..__") == "~~--..__"); assert(percentEncode("0123456789") == "0123456789"); string e; e = percentEncode("☃"); assert(e == "%E2%98%83", "expected %E2%98%83 but got" ~ e);
Percent-encode a string.
URL components cannot contain non-ASCII characters, and there are very few characters that are safe to include as URL components. Domain names using Unicode values use Punycode. For everything else, there is percent encoding.