RE: data access structures, strings

["Jeff Hill" <johill@lanl.gov>]

> It's unfortunate that your reader/write is of course
> similar to std::string, MFC::CStr, ... and yet
> we can't use any of the existing but have to make
> our own again, but I guess that's just the way it is.
> 

Both StringEditor and StringSegment are only interfaces. String accessor
objects conforming to these interfaces can be created for std::string,
MFC::CStr, ...

And if we need a fast non-contiguous string we can do that too within a
bounded effort as long as we don't try to fully reproduce every useful thing
that can ever be done with strings.

> C++ just doesn't live up to any of the sharing-of-code dreams.

Actually C++ appears to be serving its purpose just fine in this situation
allowing us to leverage off of std::string when we need bells and whistles
and also use a faster string in the IOC when we care about efficiency - both
through a common interface.

Jeff