On my super out of date mac, Allo renders an unrecognized emoji as U+25A1 WHITE SQUARE, not U+FFFD REPLACEMENT CHARACTER as it should. Anyone know if this is Mac's fault, Chrome's, or Allo's? (/cc @FakeUnicode)pic.twitter.com/DdTMjoFJ7L
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Unsupported glyphs ("tofu") should be shown as plain white boxes. Sometimes with hex, or X, or ?, or as plain ?. These are valid unicode codepoints or sequences with no font support. Invalid code point references or byte sequences (not tofu) become � REPLACEMENT CHARACTER.
maybe? I mean, we have a lot of codepoints whose values are known but have no assigned meaning
Maybe it depends on how the implementor reads the spec
Plain white square is still hella wrong though
So is that "1 inside a square" just how Mac deals with the .notdef glyph? Any idea why the ZWJ is being rendered?
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I'd guess because my keyboard printed "shrug zwj female"?
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Right, but ZWJ should never be rendered as far as I know
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