To get you started this should find any non-whitespace characters followed by a space then any number of digits and only format the non-white space characters…
S+ (?=d+) and apply a grep style
In the case of finding all the lowercase letters at the beginning of a paragraph, and converting them to another case, you could use a workaround like All Caps
^[[:lower]] and apply a grep style that is formatted to All Caps for it's character style. Not perfect, but meh… 
I'm not a pro like some of these other guys, just another head.
This article was last modified on November 23, 2009
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