I'd like to incorporate some scraps of code in an org file.  These scraps
include both ~ and =, the markers for verbatim text and code.

I used customize-variable org-emphasis-alist to change the symbols to mark
verbatim text, but without success; adding unusual symbols broke LaTeX
export of the org file, and swapping the underline and verbatim symbols had
no effect (code marked _like so_ was still underlined instead of made
verbatim).

Advice would be appreciated!
Thanks,
Nathaniel

p.s. I don't subscribe to this list, so please include my email in
reponses. Thanks!