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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 29.3.3.1, p. III-511.
% Original source in file "io2.TEX", starting line 1192.
\wlog{L: "vwrt-mac.tip" ["io2.TEX," l. 1192, p. III-511]}%
% This file DOES belong to format "texip."
\InputD{verbwr.tip}
\InputD{defauarg.tip}
\InputD{verb-mac.tip}
\catcode`\@ = 11
\newwrite\@VStream
\newif\if@VStreamOpen
\@VStreamOpenfalse
\newcount\@VerbWriteCount
\@VerbWriteCount = 0
\def\BeginVerbWrite #1#2{%
\global\advance\@VerbWriteCount by 1
\wlog{\string\BeginVerbWrite: [\the\@VerbWriteCount]}%
\DefaultArg{\@VerbWriteBaseName}{#1}{\jobname}%
\DefaultArg{\@VerbWriteFileExt}{#2}{ver}%
\xdef\@VerbWriteFileName{\@VerbWriteBaseName.\@VerbWriteFileExt}%
\if@VStreamOpen
\errmessage{\string\BeginVerbWrite: ERROR, file still open.}%
\fi
\OpenVerbWrFile{\@VerbWriteBaseName}{\@VerbWriteFileExt}%
{\@VStream}%
\global\@VStreamOpentrue
\BeginVerbWr{\@VStream}{\EndVerbWrite}%
}
\def\CloseVerbWriteFile{%
\if@VStreamOpen
\CloseVerbWrFile{\@VStream}%
\global\@VStreamOpenfalse
\fi
}
\def\AppendVerbWrite{%
\wlog{\string\AppendVerbWrite: [\the\@VerbWriteCount]}%
\if@VStreamOpen
\else
\errmessage{\string\AppendVerbWrite: no file open.}%
\fi
\xdef\@VerbWriteFileName{\@VerbWriteBaseName.\@VerbWriteFileExt}%
\BeginVerbWr{\@VStream}{\EndVerbWrite}%
}
\def\VerbAsVerb{%
\CloseVerbWriteFile
{%
\CaretTabtrue
\ListVerb{\@VerbWriteFileName}%
}%
}
\def\VerbAsSource{%
\CloseVerbWriteFile
\input \@VerbWriteFileName \relax
}
\catcode`\@ = 12
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