Re: U+200B and LaTeX

[nopria <mmj529-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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I opened the issue https://github.com/jgm/pandoc/issues/5756


Il giorno mercoledì 18 settembre 2019 18:24:40 UTC+2, John MacFarlane ha 
scritto:
>
>
> 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 <mmj...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org <javascript:>> 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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>
>

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