grapheme-cluster

问题 From what I can tell Dart does not have support for grapheme clusters, though there is talk of supporting it: Dart Strings should support Unicode grapheme cluster operations #34 Minimal Unicode grapheme cluster support #49 Until it is implemented, what are my options for iterating through grapheme clusters? For example, if I have a string like this: String family = '\u{1F468}\u{200D}\u{1F469}\u{200D}\u{1F467}'; // 👨‍👩‍👧 String myString = 'Let me introduce my $family to you.'; and there is a

问题 If I have an arbitrary String like this: final family = '\u{1F468}\u{200D}\u{1F469}\u{200D}\u{1F467}'; // 👨‍👩‍👧 final myString = 'Let me introduce my $family to you.'; And I know the String index of the character after the family emoji (the space) is 28 , how do I find the String index of the first code unit of the family emoji? In other words, how to I find the length in UTF-16 code units of the family emoji? I've asked a similar question before, but that was before the characters package

问题 If I have an arbitrary String like this: final family = '\u{1F468}\u{200D}\u{1F469}\u{200D}\u{1F467}'; // 👨‍👩‍👧 final myString = 'Let me introduce my $family to you.'; And I know the String index of the character after the family emoji (the space) is 28 , how do I find the String index of the first code unit of the family emoji? In other words, how to I find the length in UTF-16 code units of the family emoji? I've asked a similar question before, but that was before the characters package