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%%% ======================================================================
%%% @LaTeX-style{
%%% filename = "labels.sty",
%%% version = "1.0",
%%% date = "17 July 1992",
%%% time = "13:39:24.74 +0100",
%%% author = "Norman Gray",
%%% address = "Department of Physics
%%% Open University
%%% Milton Keynes
%%% MK7 6AA, UK",
%%% e-mail = "N.O.Gray@open.ac.uk (Internet)",
%%% telephone = "+44 908 652279",
%%% FAX = "+44 908 653744",
%%% archived = "Aston, SHSU",
%%% keywords = "Labels, cross-referencing",
%%% abstract = "If this style file is included amongst the
%%% \documentstyle options, all uses of the \label
%%% command within the LaTeX file will have the label
%%% name printed in the margin (except when used in
%%% a \caption, when it appears in the text).",
%%% codetable = "ISO/Ascii",
%%% checksum = "60488 80 330 3319",
%%% docstring = "Display label names in margin
%%%
%%% The checksum field above contains a CRC-16
%%% checksum as the first value, followed by the
%%% equivalent of the standard UNIX wc (word
%%% count) utility output of lines, words, and
%%% characters. This is produced by Robert
%%% Solovay's checksum utility."
%%% }
%%% ======================================================================
\let\@@eqnnum=\@eqnnum
\def\@eqnnum{\@@eqnnum
% + |\@eqnnum| will produce a note, sticking into the margin beside
% the equation number, which has the equation's label and number.
% |\labeln@me| is initialised to |\relax|, redefined within the
% |\label| macro, and reset to |\relax| here. If it's already equal
% to |\relax| here, the equation number hasn't been labelled, and so
% `???' is put in the margin. \-
\if\labeln@me\relax
\margintext{???}%
\else
\margintext{\labeln@me}\global\def\labeln@me{\relax}%
\fi}
\let\@@makecaption\@makecaption
\let\@label\label
\def\@gobblethree#1#2#3{}
\def\prlabelname#1{% expansion is label name #1 with all catcodes `other'
\expandafter\expandafter\expandafter\@gobblethree
\expandafter\string\csname r@#1\endcsname}
% use \r@#1, rather then just \#1 to avoid defining new control sequence
\long\def\@makecaption#1#2{{\def\label##1{{\nintt\{\prlabelname{##1}\}\space
}\@label{##1}}\@@makecaption{#1}{#2}}}
\def\label#1{\@bsphack\@label{#1}%
\ifmmode
\xdef\labeln@me{\prlabelname{#1}}% label name produced with equation number
\else
{\setbox0=\vbox to 0pt{\vss\hbox to \hsize{\hfill
\margintext{\prlabelname{#1}}}}\dp0=0pt%
\ifvmode
\nointerlineskip\box0\nobreak % fix this box to next one
\else
\vadjust{\box0\nobreak}%
\fi}%
\fi
\@esphack}
%\if@twoside
% \def\margintext#1{\ifodd\c@page\rlap{\nintt\quad\{#1\}}\else
% \llap{\nintt\{#1\}\quad\hskip\textwidth}\fi}
%\else
% \def\margintext#1{\rlap{\nintt\quad\{#1\}}}
%\fi
\def\margintext#1{\rlap{\sevit\quad\{#1\}}}
\global\def\labeln@me{\relax}
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