Ignore emacs editor temp file.

[zw963]

Emacs will generate some temp files before save, e.g. .#app.rb, #app.rb#.

So, i thought we should add those rarely used filename to ignore list. like this:

listener.ignore /\A\.?#/

[ColinDKelley]

@zw963 That regexp looks a bit more general than the 2 examples you show, because it would also match #app.rb.

Does this pattern look accurate to match exactly those 2 cases? /\A.#|\A#.*#\z/?

Could you please make a PR with this change, along with specs?

[zw963]

That regexp looks a bit more general than the 2 examples you show

Yes, /\A\.?#/ is a little general (though, this is my original purpose)

I just want ignore any file which prefix with .# or #, if you favor more accurate, i can exact file name like (?:^\.#|^#.+#$), will create PR later.

[zw963]

@ColinDKelley PR, #546 , thank you.