Cherry-pick "LibWeb: Iterate over text chunks using a grapheme-aware segmenter" #25490
+84
−32
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Our current text iterator is not aware of multi-code point graphemes. Instead of simply incrementing an iterator one code point at a time, use our Unicode grapheme segmenter to break text into fragments.
(cherry picked from commit f0105b473b9cc3446ec36359b559db9a8e78446d; amended as usual for Unicode::Segmenter -> Locale::Segmenter, and to tweak expected/multi-code-point-graphemes.txt for serenity's superior emoji glyphs)
LadybirdBrowser/ladybird#1465, second commit. (Don't need the first, already have a predictable emoji font.)
LadybirdBrowser/ladybird#1702Less dramatic for us than upstream. Before:
After: