[Dev-luatex] .BEILMOPS or how I stopped worrying and love Open Source
dak at gnu.org
Wed Dec 12 10:58:37 CET 2007
"Jonathan Sauer" <Jonathan.Sauer at silverstroke.com> writes:
> [\unexpanded vs \detokenize]
>> > 2. \unexpanded introduces spaces after control sequences.
>> Why wouldn't \detokenize do the same? Wait, it does:
>> > At least in the context of \directlua.
>> I guess that this may be the real reason.
> I thought a bit about this, and I think that it is quite useful if
> \detokenize does not introduce spaces when used in \directlua, as
> opposed to \unexpanded, since sometimes (i.e. when used as a set in
> lpeg.S) spaces are completely undesired.
> Of course, in these situations \string could be used as an
> alternative. But since \detokenize is equivalent (at least as I
> understand it)
Your understanding is wrong.
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> to prefixing each token with \string, \detokenize should not introduce
> spaces. IMO.
I disagree. I don't think that \detokenize should behave differently
within \directlua. Not least of all since "within" is very fuzzy to
define when macro expansion is involved.
David Kastrup, Kriemhildstr. 15, 44793 Bochum
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