Some of the operators use non ASCII characters. Here is how you enter them: <a href="http:&#x2F;&#x2F;doc.perl6.org&#x2F;language&#x2F;unicode_entry" rel="nofollow">http:&#x2F;&#x2F;doc.perl6.org&#x2F;language&#x2F;unicode_entry</a><p>No risk, no fun.