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explain why using grapheme clustering is important

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This commit is contained in:
WilsonLe 2024-11-08 19:36:07 +07:00
parent 775feca02d
commit ae44e758d6
1 changed files with 6 additions and 1 deletions
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7
lib/pangea/widgets/chat/overlay_message_text.dart
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@ -68,11 +68,16 @@ class OverlayMessageTextState extends State<OverlayMessageText> {
);
}
// Convert the entire message into a list of characters
// Convert the entire message into a list of characters
final Characters messageCharacters =
widget.pangeaMessageEvent.event.body.characters;
// When building token positions, use grapheme cluster indices
// We use grapheme cluster indices to avoid splitting emojis and other
// complex characters that requires multiple code units.
// For instance, the emoji 🇺🇸 is represented by two code units:
// - \u{1F1FA}
// - \u{1F1F8}
final List<TokenPosition> tokenPositions = [];
int globalIndex = 0;