Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uwm.edu!ux1.cso.uiuc.edu!csrd.uiuc.edu!s41.csrd.uiuc.edu!eijkhout
From: eijkhout@s41.csrd.uiuc.edu (Victor Eijkhout)
Newsgroups: comp.text.tex
Subject: Re: lastskip
Message-ID: <1991Mar20.021016.9346@csrd.uiuc.edu>
Date: 20 Mar 91 02:10:16 GMT
References: <9103191328.AA19226@sc.ZIB-BERLIN.DBP.DE>
Sender: news@csrd.uiuc.edu (news)
Organization: UIUC Center for Supercomputing Research and Development
Lines: 15

Schoepf@SC.ZIB-BERLIN.DBP.DE (Rainer Schoepf) writes:

>There is some special treatment of vertical-type quantities
>(like your \lastskip) within a \write.  Try the following:
> 
>\def\t{\skip0=\the\lastskip\immediate\write16{\the\skip0}}
> 
>With this you get the correct value of \lastskip.  If I remember
>correctly, the problem with \write is that TeX is in a special
>"no-mode" when it is processing the content of the \write, and

Note that with \spacefactor and \prevdepth there are the
same sort of problems, but there you get an error message.

Victor.