[NTG-context] esoteric macro expansion bug in t-bib?

[Idris Samawi Hamid]

>===== Original Message From Taco Hoekwater <taco at elvenkind.com> =====
>Christopher Creutzig wrote:
>> Idris Samawi Hamid wrote:
>>>\def\IBAR%
>>>{\leavevmode\vbox{\offinterlineskip\lineskip0.295ex%
>>>\ialign{##\cr\USHIFT{120}\hfill\hbox to .21243em{\leaders\hrule
>>>height .07ex\hfill}\hfill\SHIFT{1}\cr\i\cr}}}
>>
>>
>>  Could you try
>> \unexpanded\def\IBAR% ...
>>
>
>That was my first thought as well.

That finally ocurred to me after you all were sleep yesterday-) Yes, the 
\unexpanded solves things.

I'm curious: how exactly does \unexpanded work? Is this an eTeX primitive?

Best
Idris

============================
Professor Idris Samawi Hamid
Department of Philosophy
Colorado State University
Fort Collins, CO 80523