Raw string literals and Unicode escapes

[Brian Goetz]

> Which leads us to the following theoretical result: the ```` mechanism 
> does not require you to grub around in the interior of the string AT 
> ALL if you don’t want to.  All you need to know is the length.  If the 
> length of the raw string is n, and it does not begin or end with ` (a 
> necessary check in any case), then using n-1 backquote characters 
> before and after will always do the job.
>
> In practice, many programmers (and programs) will be willing to do a 
> quick search to see whether “```” or failing that “````” happens to be 
> absent from the raw string. :-)
>

Or the IDE will helpfully suggest a sensible number of quotes when you 
do quote-quote-paste.