Function unicode_bidi::reorder_levels

pub(crate) fn reorder_levels<'a, T: TextSource<'a> + ?Sized>(
    line_classes: &[BidiClass],
    line_levels: &mut [Level],
    line_text: &'a T,
    para_level: Level
)

Produce the levels for this paragraph as needed for reordering, one level per code unit in the paragraph. The returned vector includes code units that are not included in the line, but will not adjust them.

This runs Rule L1