This RegEx will convert abbreviations composed of single chars and points between (and/or behind it) to uppercase.
Single chars without points around remains lowercase, except if a "-"char and a space is before it. (Example: "Songname - A text")
RegEx: ( |\.|^)(\w)(?= |\.|$)
Replace with: $1$upper($2)and
RegEx: ([^-])( \u )
Replace with: $1$lower($2)
Example: a.b a Reg.eX in p.o.d p. diidi e.t. - a bad a.i
==>
A.B a Reg.eX in P.O.D P. diidi E.T. - A bad A.I
Both regular expressions should be executed one after another
Use
RegEx: ( \u )
Replace with: $lower($1)instead of second RegEx to have chars after " - " lowercase too. (Example: "Songname - a text")
Regards
nickless
Edit: removed some unnecessary characters from RegEx