[Gnuplot-info] Enhanced-escape bug (at least 8 years old)...

[Craig D. <def...@bo...>]

In enhanced-mode, escaped characters such as ampersand require not one escape but two.  For example, the string 'S\&P 500' renders as "S P 500" in a title.  The string 'S\\&P 500' renders correctly.  This is reproducible with pdf, eps, and all the cairo terminals.

I googled for the problem, and found this thread ("http://comp.graphics.apps.gnuplot.narkive.com/GtFk5Tfg/ampersand-in-title") from 8 years ago, complete with in-character comments from both Juergen and Ethan.  As far as I can tell, the behavior has been neither documented nor repaired in that time.  

Is this something about which a patch would be welcome?  Or is it now established behavior that instead needs to be documented?

Cheers,
Craig