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+% FNCYLAB.STY v1.0
+% Copyright 2000,2003 Robin Fairbairns (robin.fairbairns@cl.cam.ac.uk)
+%
+% This program can redistributed and/or modified under the terms
+% of the LaTeX Project Public License; either version 1.2 of the
+% license, or (at your option) any later version.
+%
+% See http://www.latex-project.org/lppl.txt for the latest version
+% of the license.
+%
+% This package provides support for arbitrary structuring of the way
+% label references look. The \labelformat command takes two
+% arguments:
+% #1 the counter that will define the label (e.g., section, figure,
+% enumi, etc.)
+% #2 the definition of how the label will be formatted: in this
+% argument, #1 (*not* ##1) substitutes the `raw' value of the
+% thing which is the source of the label.
+%
+% The package makes use of a built-in LaTeX facility (which actually
+% needs a bit of patching before it's usable); this allows the precise
+% layout of the references to labels generated from any LaTeX counter
+% to be altered. Note that the way in which the counter itself is
+% represented in references depends on \the<counter> -- it's the same
+% as the way the counter gets printed.
+%
+% example
+% \labelformat{section}{section #1}
+% ...
+% \section{The Blah Field}\label{blah}
+% ...
+% ... As we saw above in~\ref{blah} ...
+%
+% will typeset as
+% ... As we saw above in section 3 ...
+%
+% For references at the start of a sentence, the package defines a
+% command \Ref, which is used as follows:
+% ... \Ref{blah} shows us that ...
+%
+% which will typeset as
+% ... Section 3 shows us that ...
+%
+% A demonstration of \labelformat, using the enumerate package, may be
+% found after \endinput
+
+% this check and redefinition is suggested in the latex source
+% (ltxref.dtx)
+\CheckCommand*\refstepcounter[1]{\stepcounter{#1}%
+ \protected@edef\@currentlabel
+ {\csname p@#1\endcsname\csname the#1\endcsname}%
+}
+\renewcommand*\refstepcounter[1]{\stepcounter{#1}%
+ \protected@edef\@currentlabel
+ {\csname p@#1\expandafter\endcsname\csname the#1\endcsname}%
+}
+
+\def\labelformat#1{\expandafter\def\csname p@#1\endcsname##1}
+
+\DeclareRobustCommand\Ref[1]{\protected@edef\@tempa{\ref{#1}}%
+ \expandafter\MakeUppercase\@tempa
+}
+
+\endinput
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% small sample file
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\documentclass{article}
+%
+% a brief demonstration of the use of fncylab
+%
+\usepackage{fncylab,enumerate}
+\begin{document}
+%
+% outer level lists (such as enumerate) use counter enumi for their
+% list tags.
+\begin{enumerate}[(i)]
+\item first item, defining a non-fancy label \label{first}
+%
+% that label was defined to look otherwise than it was printed for the
+% item:
+\item second item (see also item~\ref{first})
+%
+% redefine label formats for this list's labels:
+\labelformat{enumi}{(#1)}
+%
+% and label the another item in a different way:
+\item third item, defining a fancy label \label{third}
+%
+% redefine label formats for this list's labels again:
+\labelformat{enumi}{item~(#1)}
+%
+% we now see that the label has for item three has been defined
+% differently, and that for item four differently again. note the
+% reference starting a new sentence.
+\item fourth item, defining a fancy label in a different format (see
+ also item~\ref{third}). \Ref{fourth} shows how a sentence may start
+ with reference to a fancy label; note that it's the \emph{label}
+ that's fancy, so the second change to the label format only affects
+ the labels defined after it. \label{fourth}
+\end{enumerate}
+\end{document}