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.
