rontolisp:url-encode

(rontolisp:url-encode string)

Encodes a string for embedding in a URL: RFC 3986 unreserved characters (letters, digits, -, ., _, ~) pass through unchanged and every other character becomes the percent-encoded form of its UTF-8 bytes (a space becomes %20, not +). The inverse is rontolisp:url-decode.

The typical use is building a rontolisp:fetch URL from runtime values:

Backend support

Works on every backend and in every WASM mode (Preview 1 included): the library is written in rontolisp itself and is compiled into the program when used.