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Is there a "glyph not found" character?

Let's assume we have a text that contains a Unicode character that cannot be displayed because our font has no corresponding glyph. Usually, a placeholder is displayed instead, e.g. a rectangular block thingy (see screenshot).

Is there a "glyph not found" character that reliably produces this glyph? I'd like to write something like "If the following text contains <insert character here> then you need another font..." in a UI.

By the way, I am not talking about � (replacement character). This one is displayed when a Unicode character could not be correctly decoded from a data stream. It does not necessarily produce the same glyph:

enter image description here

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Sebastian Negraszus Avatar asked Dec 05 '12 19:12

Sebastian Negraszus


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1 Answers

From the Unicode Spec:

  • http://unicode.org/charts/PDF/U25A0.pdf

U+25A1 □ WHITE SQUARE

  • may be used to represent a missing ideograph

  • U+20DE $⃞ combining enclosing square

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Michaelangel007 Avatar answered Oct 26 '22 21:10

Michaelangel007