highlight: guess by text when path name is ambiguous Although the docs claim that guess_lexer_for_filename will fall back to using file data, my ubuntu 7.10 pygments library seems to ignore the text argument. So call guess_lexer explicitly on failure.

highlight: make div trimmer work when lexer fails to identify text. In this case, there is no initial <span> tag.

highlight: use iter() instead of generator comprehension