Stupid Unicode Trick: Noncharacters
Perl RT 133292 is a request to expose the internal perl
subroutine that does string interpolation, so that one does not need to figure out how to double-quote a string (escaping where necessary) when feeding it to eval() as a quick-and-dirty templating system.
In fact, there is no such subroutine (the parser makes an interpolation into a concatenation), and anyway why not just use sprintf()…