As I mentioned in another posting, I am writing a rudimentary
Pascal-to-C++ translator using a hodgepodge of sed scripts and C
programs. One of the few important remaining tasks is to change one of
my sed scripts so that it will not do what it does now, which is to
recklessly replace all occurrences of "and", "or", and "not" with "&&",
"||", and "!".

The translator does need to make those conversions, but only if the
word "and", "or", or "not" is not part of a literal string.

Example:
This:
if not ( ( a and b ) or ( c and d ) )
Should become:
if ( ! ( ( a && b ) || ( c && d )) )

However, this:
write(output) << "Send receipt and sample of blood to rebateshq.com
and expect not to get a reply." << NL;
Should NOT become this:
write(output) << "Send receipt && sample of blood to rebateshq.com
&& expect ! to get a reply." << NL;

Thoughts, anyone?

Thanks!