Help for this page
%p %span foo
<autotree> startrule : <skip:''> block(s?) ... line_body : /.*/ plain_text : backslash ('%' | '!' | '.' | '#' | '-' | '/' | '=' | '& +' | ':' | '~') /.*/ | /.*/ backslash : '\\'
-# haml comment %p a paragraph