[XeTeX] zhspacing interferes with latin apostrophe (2019)

[Ross Moore]

Hi Axel,

On 21/10/2010, at 2:31 AM, Axel Kielhorn wrote:

> Hello!
> 
> I've been contacted with a problem report involving zhspacing and a Unicode Apostrophe:
> 
> The Apostrophe is replaced by a Chinese character, which looks horrible in context.
> When I use a ' and Mapping=tex-text the correct character is printed.

With your example, and tracing the output, this is what I get:

>>> ....\EU1/TimesNewRoman(0)/m/n/10 The
>>> ....\glue 2.5 plus 1.25 minus 0.83333
>>> ....\EU1/TimesNewRoman(0)/m/n/10 Humboldt
>>> ....\glue 2.5 plus 1.25 minus 0.83333
>>> ....\EU1/TimesNewRoman(0)/m/n/10 University
>>> ....\penalty 10000
>>> ....\EU1/AppleLiSung(0)/m/n/10 ’
>>> ....\penalty 10000
>>> ....\glue -3.50006
>>> ....\penalty 0
>>> ....\glue 3.50006
>>> ....\glue 0.0 minus 3.00003
>>> ....\EU1/TimesNewRoman(0)/m/n/10 s
>>> ....\glue 2.5 plus 1.25 minus 0.83333
>>> ....\EU1/TimesNewRoman(0)/m/n/10 TOPOI
>>> ....\glue 2.5 plus 1.24875 minus 0.83415
>>> ....\EU1/TimesNewRoman(0)/m/n/10 project
>>> ....\glue 2.5 plus 1.25 minus 0.83333
>>> ....\EU1/TimesNewRoman(0)/m/n/10 cluster

You can see all the hoo-haa around the apostrophe, which
is using a Chinese font, as you say.

With the straight quote (') the output is much cleaner:

>>> ....\EU1/TimesNewRoman(0)/m/n/10 The
>>> ....\glue 2.5 plus 1.25 minus 0.83333
>>> ....\EU1/TimesNewRoman(0)/m/n/10 Humboldt
>>> ....\glue 2.5 plus 1.25 minus 0.83333
>>> ....\EU1/TimesNewRoman(0)/m/n/10 University’s
>>> ....\glue 2.5 plus 1.25 minus 0.83333
>>> ....\EU1/TimesNewRoman(0)/m/n/10 TOPOI
>>> ....\glue 2.5 plus 1.24875 minus 0.83415
>>> ....\EU1/TimesNewRoman(0)/m/n/10 project



> The document enclosed does not include Chinese text, just loading zhspacing is sufficient to produce the error.
> 
> If I put zhspacing into a group, everything is fine, I'm just wondering why it acts on non-chinese text. (Well, it doesn't know the text is non-chinese.)

I'd expect that \zhspacing  is intended to be like font-switch,
to be used only inside environments that really need it.
Certainly that seems to be a decent explanation for what 
happens with this example.

Adjust it a bit, to use:


\begin{quote}{\zhspacing
The Humboldt University’s TOPOI project cluster of excellence brings together researchers who investigate the formation and transformation of space and knowledge in ancient civilizations and their later developments. --- This does not work.

}

The Humboldt University’s TOPOI project cluster of excellence brings together researchers who investigate the formation and transformation of space and knowledge in ancient civilizations and their later developments. --- This does indeed work just fine.

The Humboldt University's TOPOI project cluster of excellence brings together researchers who investigate the formation and transformation of space and knowledge in ancient civilizations and their later developments. --- This does work but is not nice™.

\end{quote}



> 
> My TL2010 is about a week old:
> 
> *File List*
> scrbook.cls    2010/09/17 v3.07 KOMA-Script document class (book)
> scrkbase.sty    2010/09/17 v3.07 KOMA-Script package (KOMA-Script-dependent bas
> ics and keyval usage)
> scrbase.sty    2010/09/17 v3.07 KOMA-Script package (KOMA-Script-independent b
> asics and keyval usage)

Your KOMA-script stuff is a bit more recent than mine,

and these too, but I'd doubt these differences are relevant

>  xparse.sty    2010/09/20 v2037 Generic document command parser

>  eu1enc.def    2010/05/27 v0.1h Experimental Unicode font encodings

> polyglossia.sty    2010/07/27 v1.2.0a Babel replacement for XeLaTeX
> etoolbox.sty    2010/09/12 v2.0a e-TeX tools for LaTeX

> ***********
> 
> Axel


Hope this helps,

	Ross

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Ross Moore                                       ross.moore at mq.edu.au 
Mathematics Department                           office: E7A-419      
Macquarie University                             tel: +61 (0)2 9850 8955
Sydney, Australia  2109                          fax: +61 (0)2 9850 8114
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