On 03/01/2011 13:56, Taco Hoekwater wrote:
> On 01/03/2011 02:39 PM, Philipp Stephani wrote:
>> Reading the source code, I guess \directlua behaves identically to
>> \immediate\write, while \latelua corresponds to \write. If that is
>> true, then the naming convention of the \iow_ macros should be
>> applied.
> The correspondence is correct, but \directlua is expandable
> (\immediate\write is not).

Thanks Taco (and Philipp). I will revisit the l3luatex stuff later today 
and try to tighten both the expl3 function names and description up.
Joseph Wright