[luatex] Hyphenchar

[Arthur Reutenauer]

> the unicode hyphenation character is U+2010 (HYPHEN) (correct?). But  
> LuaTeX tries to insert U+002D (HYPHEN-MINUS) when breaking a paragraph.

  (I assume you mean breaking a paragraph into lines)

  As a matter of principle, you're right, the correct Unicode character is
U+2010 HYPHEN, but it's very poorly supported in actual fonts even if that
would be trivial, so it makes sense to use the formally ambiguous HYPHEN-MINUS
instead.  At least until HYPHEN is supported more widely.

	Arthur