fn match_blanks_between(
current: (LineNumber, LineNumber),
prev: (LineNumber, LineNumber),
lhs_lines: &[&str],
rhs_lines: &[&str]
) -> Vec<(Option<LineNumber>, Option<LineNumber>)>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A>where
A: Allocator,Expand description
If the lines immediately before current are blank on both sides,
return the line numbers of those blank lines.