StyleAttributeExtractorTruncated
A simple visitor whose purpose is to extract the set of attributes used by a
Style, that is, those that the Style expects to find in order to work
properly
This is very similiar to StyleAttributeExtractor, but with these differences:
a) it doesnt the count the tag in the
b) it doesnt count anything in the 's tag
c) it doesnt count anything in the 's