Message-Id: <9209220722.AB21117@sc.zib-berlin.dbp.de>
Reply-To: Mailing list for the LaTeX3 project <LATEX-L@vm.urz.Uni-Heidelberg.de>
Date:         Mon, 21 Sep 92 23:54:55 CET
From: Don Hosek <DHOSEK@HMCVAX.CLAREMONT.EDU>
Sender: Mailing list for the LaTeX3 project <LATEX-L@vm.urz.Uni-Heidelberg.de>
To: Multiple recipients of <LATEX-L@vm.urz.Uni-Heidelberg.de>
Subject:      Re: Cross-references
Status: R


-> Two desiderata:

-> 1. Cross-referencing between footnotes.

-OK.

Actually, everything that is automatically numbered in LaTeX can
be referenced now. Unfortunately, the documentation of this is
poor in all currently published works.

-> 2. Cross-references and index-entries of the form e.g.
-> p.~25 n.~34
->
-More info please, or references!:

-eg  what is  n.~24 a reference to?  (I assume that p.~25 is page 25).

-I assume that you want index entries to be able to refer to elements
-other than pages.  If there is more to it, please explain.

I imagine that the dediratum is the ability to specially mark
index entries to text in footnotes. The standard notation would
be to indicate the page in the index as 25n rather than simply
25. This can be accomplished using the following code:

.
\newcommand{\n}[1]{#1n}
.

\begin{document}
.
.\index{foo|n}
.


which will add an n to the page number in the index.

Adding the ability to print the note number takes a little more
work:

\newcommand{\N}[2]{#2n#1}
\let\ex\expandafter
\newcommand{\nindex}[1]{\ex\def\ex\foo\ex{\ex#\ex1\ex|\exN\ex{\thefootnote}}%
  \ex\index\ex{\foo}}
.

.\nindex{foo}

[This latter I'm just assuming will work as given. I make no
guarantees.]

A better facility for this could be incorporated.

-dh

Don Hosek
dhosek@ymir.claremont.edu
Quixote Digital Typography
714-621-1291