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TeX 1995 July
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TeX CD-ROM July 1995 (Disc 1)(Walnut Creek)(1995).ISO
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tip
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cref-3.tip
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1993-09-15
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% This macro source file is from the four volume series
% "TeX in Practice" by Stephan von Bechtolsheim, published
% 1993 by Springer-Verlag, New York.
% Copyright 1993 Stephan von Bechtolsheim.
% No warranty or liability is assumed.
% This macro may be copied freely if no fees other than
% media cost or shipping charges are charged and as long
% as this copyright and the following source code itself
% is not changed. Please see the series for further information.
%
% Version: 1.0
% Date: May 1, 1993
%
%
% This source code is documented in 19.3.5, p. III-89.
% Original source in file "tokens2.TEX", starting line 1185.
\wlog{L: "cref-3.tip" ["tokens2.TEX," l. 1185, p. III-89]}%
% This file DOES NOT belong to format "texip."
\InputD{pickfs.tip}
\InputD{namedef.tip}
\InputD{nlm.tip}
\catcode`\@ = 11
\def\Ref #1{\@ref{0}{#1}}
\def\PageRef #1{\@ref{1}{#1}}
\def\@ref #1#2{%
\if\NameDefinedConditional{@REF-#2}%
\edef\@CrefTemp{\NameUse{@REF-#2}}%
\ifcase #1\relax
\expandafter\PickFirstOfTwo\@CrefTemp % #1 = 0
\or
\expandafter\PickSecondOfTwo\@CrefTemp % #1 = 1
\fi
\else
{\bf ??}%
\NewLineMessage{Label #2 undefined.}%
\fi
}
\catcode`\@ = 12