If this is not the case, the help for \%[] may likely intend to
refer to "ordinary atoms" rather than "atoms".
*However*, the above search/match expression returns an "E369:
invalid item in \%[]" error.
I get this both in vim6.3 and vim7.
The documentation omits to mention that \(\) things are not allowed
inside \%[]. It also doesn't nest.
So should the documentation for \%[] be updated to read "ordinary
atoms" rather than "atoms" then? Or are there additional items
that can go in a \%[] that are some subset of "atom" but a
superset of "ordinary atoms"?
-tim