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

[mf <massifr@fastwebnet.it>]

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?

Massi
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