+
+If every line in the paragraph begins with (optional white·space
+ followed by) `»` it is quoted (`<html:blockquote>`); if every line
+ begins with `]` it is bracketed.
+The lines, minus this leading, are then re‐analysed.
+Bracketed paragraphs which end quotes are treated as captions
+ (`<html:figcaption>`); otherwise, they are footers (`<html:footer>`).
+