Your regex is basically correct. All you need to do is to say "and make
sure it matches the entire string", not just "any substring", like you
currently have.
To do this, one forces the regex to match from the beginning of the string,
right through to the end of the string.
So, for example a regex of "ant" would match "ant" or "pants" or
"elephant". However "^ant$" would not match "pants" or "elephant" because
the "^" means "match the beginning of the string", and "$" means "match the
end of the string". In effect this makes it so your regex must match the
entire string.
Make sense?
--
Adam
