GREP Style Title Case Exceptions

Question

A couple years ago I found a set of GREP Styles to display text as title case (as described here), but still allow me to cross-reference it in sentence case. I can't seem to dig up where I had gotten it from, but putting it to work in a new document I found it capitalizing things it shouldn't, so I've started to revise the expressions to better reflect "proper" title casing. Originally posting here to seek assistance, I eventually scrapped together enough comprehension of GREP to fix it on my own. Here's what I came up with, maybe you know a better way?

Apply Style: All Caps (style only contains Case set to All Caps)
To Text: ^\S

Apply Style: All Caps
To Text: /\S

Apply Style: All Caps

To Text: :\s\l|[-\s]\l(?!(f|he|nd?|o|y|rom|or|r|ut)?\b)

Apply Style: Normal Case (style only contains Case set to Normal)

Jongware · Answer

I think you can (rather vastly) simplify in the following way:

Apply All Caps to:

(?<!\w')\b\l

which means "word break, lower case, unless preceded by a word character and apostrophe" -- the latter to prevent "I'Ll Be Back".

Apply Normal to:

which is the common definitie and indefinite articles, plus the 75-or-so most common prepositions, preceded and succeeded by a word break and separated by the vertical bar for OR.

Compare yours against mine: I can spot a few minor differences, such as "as", but the overall format of the GREP style is easy enough to add these if you want.

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