search for "B[e]" should return something sensible

[aaccomazzi]

It is common in astronomy to use the notation "B[e]" to indicate a class of stars.
We understand why B[e] fails (the brackets trip the parser, but I would have expected the following searches to work and return something sensible:

"B[e]"
title:"B[e]"

It looks like the workaround is to search for something like:

"B e"
title:"B e"

But this is far less intuitive. I think a better rule for us is to tell our users to use double quotes to protect against parser syntax, like what happens for "B(e)"