% 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 28.5.3, p. III-474. % Original source in file "io1.TEX", starting line 1339. \wlog{L: "genostr.tip" ["io1.TEX," l. 1339, p. III-474]}% % This file DOES belong to format "texip." \catcode`\@ = 11 \newwrite\GenericOStream \newif\if@GenericOStreamOpen \@GenericOStreamOpenfalse \def\OpenGenericOStream #1{% \if@GenericOStreamOpen \errmessage{\string\OpenGenericOStream: generic output stream currently open.}% \else \global\@GenericOStreamOpentrue \immediate\openout\GenericOStream = #1% \fi } \def\CloseGenericOStream{% \if@GenericOStreamOpen \global\@GenericOStreamOpenfalse \immediate\closeout\GenericOStream \else \errhelp{Stream not in use.}% \errmessage{\string\CloseGenericOStream: stream is NOT open for output.}% \fi } \catcode`\@ = 12