Implementation of the Unicode Bidirectional Algorithm (UBA).

Reference: http://www.unicode.org/reports/tr9/.

Converts logical strings to their equivalent visual representation. Persian, Hebrew and Arabic languages (and any other RTL language) are supported.

#[test]
/// Shaping test.
fn shaping() {
    let text: &str = "مهدی";
    let mut text_u16 = text.encode_utf16().collect::<Vec<u16>>();

    perform_shaping(&mut text_u16);

    let result = String::from_utf16(text_u16.as_slice()).unwrap();
    assert_eq!(result, "ﻣﻬﺪﯼ");
    assert_eq!(text_u16, vec!['ﻣ' as u16, 'ﻬ' as u16, 'ﺪ' as u16, 'ﯼ' as u16]);
}

#[test]
/// Paragraph test.
fn paragraph() {
    let text: &str = "Two\nParagraphs";
    let text_u16 = text.encode_utf16().collect::<Vec<u16>>();

    let paragraphs = split_string_to_paragraphs(&text_u16);

    assert_eq!(paragraphs.len(), 2);
    assert_eq!(paragraphs[0].text, vec![84, 119, 111]);
}

Other Implementations

This package is also written in Dart (apart from this package, which is written in Rust). If you are looking for a pure Dart implementation of this package, look at https://pub.dev/packages/bidi/.