objc2_core_foundation

Function CFAttributedStringGetBidiLevelsAndResolvedDirections

Source 
pub unsafe extern "C-unwind" fn CFAttributedStringGetBidiLevelsAndResolvedDirections(
    attributed_string: &CFAttributedString,
    range: CFRange,
    base_direction: i8,
    bidi_levels: *mut u8,
    base_directions: *mut u8,
) -> bool
Available on crate features CFAttributedString and CFBase only.
Expand description

Fills bidiLevels by applying the Unicode Bidi Algorithm (P, X, W, N, and I) to the characters in range. Returns true if the result is not uni-level LTR (in other words, needing further Bidi processing). baseDirection is NSWritingDirection (NSWritingDirectionNatural, NSWritingDirectionLeftToRight, and NSWritingDirectionRightToLeft). Understands NSWritingDirectionAttributeName values.