Function unicode_bidi::implicit::resolve_neutral

pub fn resolve_neutral<'a, D: BidiDataSource, T: TextSource<'a> + ?Sized>(
    text: &'a T,
    data_source: &D,
    sequence: &IsolatingRunSequence,
    levels: &[Level],
    original_classes: &[BidiClass],
    processing_classes: &mut [BidiClass]
)

3.3.5 Resolving Neutral Types

http://www.unicode.org/reports/tr9/#Resolving_Neutral_Types