Gregory Sutter asked Philip Guenther [but he asked in public, so I'll butt
in without compunction],
| Philip, I have a question about this big beauty. In the regexp, you have
| three servings of bracket salad: [-!#-'*+/-9=?A-Z^-~] Should the
| asterisks within these be escaped with backslashes: [-!#-'\*+/-9=?A-Z^-~]
No need. Asterisks and several other magic characters are ordinary when they
appear inside braces.
| I had a bad match with this recipe on this:
| Message-ID: <35e460cbText Review*(_at_)m400gw(_dot_)wiley(_dot_)com>
That was from the unescaped space, probably, not from the asterisk.