mozilla/servo — pull request #2032 by brunoabinader (2014-04-03 16:31:41+00:00)
Title: Support for ASCII whitespace check

Specs:
http://dom.spec.whatwg.org/#concept-ordered-set-parser
http://encoding.spec.whatwg.org/#ascii-whitespace

This PR implements the HTMLSpaceCharSplits iterator, used to split a string in a subset of strings separated by valid HTML space characters. Its first usage is upon splitting ```class``` attribute values.

Closes #1840.