[texhax] Unicode Replacement Character in Standard TeX

Justin Bailey jgbailey at gmail.com
Wed Jan 14 22:45:33 CET 2015


I took the liberty of posting your question to the StackExchange's TeX instance:


Hopefully someone there will be able to answer. Keep an eye out as
people might ask for clarifications.

Hope you don't mind!

On Tue, Jan 13, 2015 at 6:03 PM, Douglas McKenna
<doug at mathemaesthetics.com> wrote:
> Is there a font, available to -all- TeX users, that includes a glyph that can be recognized as the Unicode Replacement Character?  I realize I can use XeTeX with a U+FFFD (or maybe any character not in the font), but I'm interested in using standard pdfTeX with standard LaTeX 2e and a pure ASCII input file.
> The glyph typically looks like a filled black diamond with a white question mark inside it.
> If no such font is available, what's the best robust strategy for getting such a glyph into a standard pdfTeX document (one whose input file has no Unicode or non-ASCII UTF-8 byte sequences in it) without using XeTeX or similar?  Inserting TikZ commands?  Raw PostScript?
> Right now, for lack of a better solution, I'm using a \textbullet, simply because it's the boldest/blackest glyph I can think of, and it's available in most standard fonts.
> Creating a custom font with one glyph in it is not really viable, or if it is it's a strategy of last resort, unless (perhaps) it can be done automatically and on the fly when processing the document each time.
> TIA,
> Doug McKenna
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