[XeTeX] Space characters and whitespace

[Philip Taylor (Webmaster, Ret'd)]

Tobias Schoel wrote:

> So would it be wise to make for example u2009 (narrow space) and u202f
> (narrow no break space) active and map it to {\,} or {\nolinebreak\,}
> respectively?

IMVHO, this should be as unnecessary (and insane) as
making u00E9 (é) active and mapping it to {\'e}.  Surely
if XeTeX is predicated on the use of Unicode, it should
"understand" the semantics of Unicode code points such
as u2009 and u202F and just do the right thing without
having to hack things through the use of active characters.

My EUR 0,02
Philip Taylor