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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 18.3.14.2, p. III-57.
+% Original source in file "tokens1.TEX", starting line 3279.
+\wlog{L: "ts-verb2.tip" ["tokens1.TEX," l. 3279, p. III-57]}%
+% This file DOES belong to format "texip."
+\catcode`\@ = 11
+\def\Btexalt{%
+ \@btex
+ \@StartVerbatim{0}%
+ \btex@morealt
+}
+{
+ \catcode `| = 0 % | becomes escape character.
+ \catcode`\\ = 12 % \ now prints.
+ |gdef|btex@morealt #1\Etexalt{%
+ #1%
+ |@DoneVerbatim
+ |@etex
+ }%
+}
+\catcode`\@ = 12