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From: xiaofei@acsu.buffalo.edu (Xiaofei Wang)
Newsgroups: comp.text.tex
Subject: Re: \lowercase error
Message-ID: <53408@eerie.acsu.Buffalo.EDU>
Date: 4 Jan 91 03:15:17 GMT
References: <53374@eerie.acsu.Buffalo.EDU> <1991Jan3.210056.26436@csrd.uiuc.edu>
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In article <1991Jan3.210056.26436@csrd.uiuc.edu> eijkhout@s41.csrd.uiuc.edu (Victor Eijkhout) writes:
* >TeX reports an error for `\+' for the following TeX code.
* 
* >\lowercase
* >{ [...]
* >\+ 
* 
* \+ is an outer macro, and apparently it is not allowed to
* appear inside a \lowercase command. Tough luck.
* Redefine \+, or do something dirty:
* \def\PLUS{\+}
* \lowercase
* { ...
* \PLUS
* et cetera.

As you said the \+ is an outer macro and it is not allowed to 
appear as argument so the \def\PLUS{\+} won't work. Further
suggestions are appreciated. Thanks.