[NTG-context] Re: full-width Chinese comma (U+FF0C) and ordinary comma (U+002C) in Chinese texts

[Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>]

mf schrieb am 14.11.2024 um 18:10:
> Il 14/11/24 17:52, Wolfgang Schuster ha scritto:
>> mf schrieb am 14.11.2024 um 17:45:
>>> Hello,
>>>
>>> I'm typesetting a bibliography with some Chinese books that have 
>>> both the English translation and the original title in Chinese 
>>> ideograms.
>>>
>>> The Chinese titles contain both full-width commas (U+FF0C) and 
>>> ordinary commas (U+002C), followed by spaces.
>>>
>>> Full-width comma has a wide glyph that incorporates some space on 
>>> the right side; I read on Wikipedia it's a mistake putting a space 
>>> after it.
>>>
>>> THE PROBLEM
>>> ConTeXt does not break a line after a full-width comma (even inside 
>>> a "{\cn ... }" group), while it does with an ordinary comma, 
>>> followed by a space.
>>> When there are only full-width commas, sometimes I'll get overfull 
>>> boxes, because ConTeXt finds no feasible breakpoints.
>>>
>>> I'm tempted to replace all the full-width commas with ordinary 
>>> commas followed by a space. Is it possible, or is it a mistake?
>>>
>>> Or, how do I tell ConTeXt that breaks can occur after full-width 
>>> commas?
>>
>> Use \setscript[hanzi] to enable linebreaking for chinese.
>>
>> Wolfgang
>
> Thank you, Wolfgang!
>
> It works!
>
> Since I'm typesetting mixed-languages text (mainly Italian, with some 
> English, French and German), should I limit the \setscript[hanzi] to 
> the Chinese spans of text, or can I set it for the whole bibliography 
> containing Chinese titles?  It looks like the latter is true (and 
> simpler, of course).

I would limit it to chinese because it can mess up spacing for 
puntuation for the other languages.

You add the setting to the language switch with the following method:

\startsetups [chinese]
   \setscript[hanzi]
\stopsetups

\setuplanguage [cn] [setups=chinese]

Wolfgang

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