class Haml::Parser

- and not "?\," which is a character literal
(however, "x?," is a method call and not a literal)
- but not "?," which is a character literal
- ends with a comma
`text' is a Ruby multiline block if it:

def is_ruby_multiline?(text)
  text && text.length > 1 && text[-1] == ?, &&
    !((text[-3..-2] =~ /\W\?/) || text[-3..-2] == "?\\")
end