Re: U+200B and LaTeX

[John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org>]

The question is how we should render U+200B zero-width space
in LaTeX. Currently we are just outputing the unicode character
(which should work okay with xelatex anyway).

Is there a better way?

We could just output {}, for example.

It's probably worth putting an issue on the tracker.

nopria <mmj529-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> Converting from docbook to LaTeX I came across a possible uncorrect 
> management of U+200B when converting to LaTeX.
> The following docbook MWE (the simple string "...abc")
>
> <?xml version="1.0" encoding="UTF-8"?>
> <?asciidoc-toc?>
> <?asciidoc-numbered?>
> <article xmlns="http://docbook.org/ns/docbook" xmlns:xl=
> "http://www.w3.org/1999/xlink" version="5.0" xml:lang="en">
> <simpara>&#8230;&#8203;abc</simpara>
>
> is converted to LaTeX
>
> \ldots​abc
>
> with a (invisible but detectable in the real output) zero-width-space 
> between "\ldots" and "abc".
>
> I think that the correct LaTeX output should be
>
> \ldots abc
>
> with a standard space after `\ldots`, because if you try to produce a PDF 
> you get
>
> [WARNING] Missing character: There is no ÔÇï (U+200B) in font [lmroman10-
> regular]:mapping=tex-text;!
>
> because of the presence of the zero-width-space, whereas with the standard 
> space you get the correct output ("...abc" and not "... abc") in PDF (and 
> no warnings).
>
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