searching for " in phrase and other special chars

[Eric Wong]

Hello,

I'm reading xapian-core/docs/queryparser.rst and haven't been
able to find a way to escape " (double-quote) inside quoted
phrases.

Is this possible?

I'm also wondering if searching for other special characters,
such as a literal '*', is possible without triggering a wildcard
match.  It would be helpful for some source code searches.

Thanks!