[luatex] BOM

[Vladimir Volovich]

"AR" == Arthur Reutenauer writes:

 >> Does Unicode say what's supposed to happen when BOM is found in the
 >> middle of a document?

 AR> Yes, it behaves as a zero width no-break space, i.e., a
 AR> formatting character preventing line break on either side of it.

then it should not be ignored anywhere except when it is the first
character of the file? i.e. setting the \catcode "FEFF = 9
would be wrong?

Best,
v.