The Arabic numerals cannot be wrapped correctly.

[iceXice]

ver 8.0.0

[iceXice]

const text2 = TextSpan(
children: [
TextSpan(text: '1234567890'),
TextSpan(text: '👨‍👩‍👧'),
TextSpan(text: '👋🏿'),
TextSpan(text: '🇭🇺'),
TextSpan(text: '一二三四五六七八九十'),
TextSpan(
text:
'\uD83D\uDE03\uD83D\uDE0A\uD83D\uDE1C\uD83D\uDE01\uD83D\uDE2C\uD83D\uDE2E\uD83D\uDC34\uD83D\uDC02\uD83D\uDC2B\uD83D\uDC11\uD83D\uDC10'),
TextSpan(text: '①②③㉑㊿〖汉字〗한국어モンゴル語English? ︽ᠮᠣᠩᠭᠣᠯ︖︾'),
],
);

[suragch]

This is a problem with the line-breaking. Flutter doesn't give access to a good line-breaker so the current solution in this package just breaks lines on single emojis, CJK characters, newlines, and spaces. The implementation is here:

https://github.com/suragch/mongol/blob/master/lib/src/base/mongol_paragraph.dart#L1108

To solve this, we would need a more sophisticated algorithm that breaks long words (both English and Mongolian) and numbers across lines. Ideally it would prefer breaking at certain characters such as /, -, etc.

See also:

• Need a line/word breaker for custom text rendering flutter/flutter#50171
• Text widget should allow for other line-breaking algorithms flutter/flutter#53549
• http://www.unicode.org/reports/tr14/