pub fn indent_blocks(lines: &[LineIndent], step: u16) -> Vec<IndentBlock>Expand description
Expand every region into one guide per grid column it spans.
An indent jump of more than one level (opener at column 0, body at column
8, step 4) emits a guide at each intervening column over the same line
range: there is no structure between those levels to give them different
extents. Columns are laid on a grid anchored at the opener’s column
rather than at 0, so continuation-line indentation (an opener at column 7)
still produces guides that line up with the code.