percent-encode string &key external-format safe unsafe => result-string
bit type and of the length of 127 or nil.bit type and of the length of 127 or nil.A string with all "unsafe" (i.e. reserved or non-ASCII) characters replaced by escape sequences.
This function converts uri object to a string
and if stream in not null, write the result string there
with the Common Lisp function write-string.
external-format is either :utf-8
or a designator of an arbitrary
external format
in accordance to your Lisp implementation or flexi-streams specification.
safe is a bitmask of characters with code in the range
[0..126] that may not be escaped.
If is nil, all characters in this range are considered safe. By
default, all unreserved characters are considered "safe".
unsafe is an additional bitmask of characters with code in the range
[0..126] that must be escaped. The default is nil than means that
none of the characters in this range is considered "unsafe".