[Webkit-unassigned] [Bug 177040] [FreeType] Support emoji modifiers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=177040

--- Comment #5 from Carlos Garcia Campos <cgarcia at igalia.com> ---
Ok, so the problem only happens with emojis having the zero with joiner (U+200D) in the sequence. The sequence is broken because createAndFillGlyphPage() in Font.cpp overwrites zero with joiner with zero width space (U+200B). Myles, why are we doing that overwrite? should that depend on the font? Not doing the overwrite fixes all the combinations for me in https://unicode.org/emoji/charts/full-emoji-list.html. If we can't remove the overwrite we can handle that as a special case in harfbuzz set_nominal_glyph function.

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