This is to highlight issue 2167.
https://github.com/apache/jena/issues/2167
What do if asked to print a URI string that has bad characters in it
when outputting Turtle-family syntax.
[18] IRIREF ::= '<' ([^#x00-#x20<>"{}|^`\] | UCHAR)* '>'
https://www.w3.org/TR/turtle/#grammar-production-IRIREF
Parsing also requires passing RFC 3986 in addition to the IRIREF rule.
There is no "fix the URI".
Percent encoding "encodes" - it changes the URI (the output URI string
would not match the input).
The current PR - for discussion - puts in UCHAR (which is an escape
mechanism). That at least then passes the IRREF rule but it is not a
legal URI; it has a bad character in it.
Andy
