15372 2012-01-01 21:53:09 +0000 Flex code in CSS2 appendix incorrectly lexes at-keywords 2017-12-04 05:52:18 +0000 1 1 1 Unclassified CSS CSS Level 2 unspecified All Windows 3.1 NEW P2 normal --- 1 self bert Mrmalo1938 public-css-bugzilla oldest_to_newest 62173 0 self 2012-01-01 21:53:09 +0000 The tokenizer as implemented in section G.2 (Lexical scanner) of the CSS 2.1 specification does not match the syntax as described in section 4.1.1 (Tokenization) in the way at-keywords are scanned. I can't describe the problem better than with an example: @importurl(foo.css) According to section 4.1.1, this should be tokenized as `ATKEYWORD ( IDENT DELIM IDENT )`. The scanner in G.2 tokenizes this as `IMPORT_SYM URI`. The main problem is that the latter doesn't correctly implement the rule of longest match for at-keywords.