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From: eijkhout@s41.csrd.uiuc.edu (Victor Eijkhout)
Newsgroups: comp.text.tex
Subject: Re: \\uppercase and \\i (dotless i)
Message-ID: <1990Dec10.230856.4409@csrd.uiuc.edu>
Date: 10 Dec 90 23:08:56 GMT
References: <3624@intvax.UUCP>
Sender: news@csrd.uiuc.edu (news)
Organization: UIUC Center for Supercomputing Research and Development
Lines: 25

drstrip@intvax.UUCP (David R. Strip) writes:

>I am trying to title a chapter N\^{\i}mes in book
>style. The title prints fine on the first page of the
>chapter, but when used as a header on righthand pages
>I have a problem when the chapter command applies
>uppercase to the string. I have defined the uppercase
>of \i to be I 
>    \uccode'020=`I
>but \uppercase does not expand its argument, and I'm at
>a loss as what to do.

Nice problem. It took me a while to figure this one out.

The \uccode'020=`I is correct. The problem is that
TeX will only uppercase character octal-20 if it really sees
that character. Here's how:
     N\^\char`^^Pmes
By the ^^ substitution mechanism ^^P (which is like Control-P,
which gives octal 20) becomes the dotless i character,
and this can be uppercased without any problem.
Accenting still works, because accents can also be placed over
\char-denoted characters.

Victor.