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% -*-tex-*-
% /u/sy/beebe/tex/bib/xcite.sty, Sat Sep 24 17:37:41 1994
% Edit by Nelson H. F. Beebe <beebe@plot79.math.utah.edu>
% Modified cite.sty to reduce line-breaking penalty.
% /usr/local/lib/tex/latex/cite.sty, Thu Jul 16 15:53:59 1992
% Edit by Nelson H. F. Beebe <beebe@csc-sun.math.utah.edu>
% Add missing % on one line that was responsible for spurious
% whitespace creeping into a collapsed number list.
%
%<TEX.LATEX>CITE.STY.2, 10-May-89 10:51:16, Edit by BEEBE
%
% TeXhax Digest Friday, April 21, 1989, Volume 89 : Issue 37
%
% Date: Fri, 14 Apr 89 21:59:44 PDT
% From: Donald_Arseneau@mtsg.ubc.ca
% Subject: Re: Line breaking within a citation
% Keywords: LaTeX, citations
%
% Here is my style file for numeric citations. Not only
% does it allow line breaks, but it shortens long lists
% of citations to make those breaks unnecessary:
%
% - - - - - - CITE.STY - - - - - -
%
% Replacement for \@citex
%
% Allow, but strongly discourage, line breaks within a long
% series of citations. Compress lists of successive numbers
% to one number range, e.g., 5,6,7,8,9 --> 5--9. Compatible
% with versions of \@cite that use exponents.
% -- Donald Arseneau 1989
%
\def\@citex[#1]#2{%
\if@filesw \immediate \write \@auxout {\string \citation {#2}}\fi
\@tempcntb\m@ne \let\@h@ld\relax \def\@citea{}%
\@cite{%
\@for \@citeb:=#2\do {%
\@ifundefined {b@\@citeb}%
{\@h@ld\@citea\@tempcntb\m@ne{\bf ?}%
\@warning {Citation `\@citeb ' on page \thepage \space undefined}}%
% else
{\@tempcnta\@tempcntb \advance\@tempcnta\@ne
\@tempcntb\number\csname b@\@citeb \endcsname \relax
\ifnum\@tempcnta=\@tempcntb % Number follows previous--hold on to it
\ifx\@h@ld\relax
% % first pair of successives
\edef \@h@ld{\@citea\csname b@\@citeb\endcsname}%
\else
% % compressible list of successives
\edef\@h@ld{\ifmmode{-}\else--\fi\csname b@\@citeb\endcsname}%
\fi
\else % non-successor--dump what's held and do this one
\@h@ld\@citea\csname b@\@citeb \endcsname
\let\@h@ld\relax
\fi}%
%% \def\@citea{,\penalty\@highpenalty\,}%
%% The only difference between xcite.sty and cite.sty is the
%% reduction of the after-comma penalty from \@highpenalty to 0.
\def\@citea{,\penalty0\,}%
}\@h@ld
}{#1}}
%
%
% Example of alternate \@cite macro using exponents:
%
%\def\@cite#1#2{{$^{#1}$\if@tempswa , #2\fi }}
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