Why not single-quote expansion on positional-attribute values?
I'm a newbie to AsciiDoc and AsciiDoctor; so I hope this is not just a well-trodden path...
I've a question that stems from something that AsciiDoc could apparently do: it supported single-quote expansion in positional attributes' values, as well as in "named" attributes', in an attribute list (http://asciidoc.org/asciidoc.css-embedded.html#_attribute_value_substitution). That seems like something that would be very commonly useful (e.g. see the illustration that section uses).