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%% $Id: xcomment.tex 316 2010-05-14 21:32:34Z herbert $
%%
%% COPYRIGHT 1993/2010, by Timothy Van Zandt, tvz@Princeton.EDU
%% COPYRIGHT 2010, by Herbert Voss, hvoss@tug.org
%%
%% DESCRIPTION:
%%
%% This program can be redistributed and/or modified under the terms
%% of the LaTeX Project Public License Distributed from CTAN archives
%% in directory macros/latex/base/lppl.txt.
%%
\def\fileversion{1.3}
\def\filedate{10/05/14}
%%
\@ifundefined{xcomment@@@}{}{\endinput}
\typeout{Style-Option: `xcomment' v\fileversion \space <\filedate> (tvz) }
\def\newxcomment{\@ifnextchar [{\@newxcommentwitharg}{\@newxcomment}}
\def\@newxcomment#1{%
\expandafter\def\csname #1\endcsname##1{\@xcomment{#1}{##1}}}%
\def\@newxcommentwitharg[#1]#2{%
\expandafter\def\csname #2\endcsname{\@xcomment{#2}{#1}}}
\newxcomment{xcomment}
\def\envirsep{\par}
\def\rescanfile#1{\def\@rescanfile{#1}}
\rescanfile{\jobname.tmp}
\def\norescanfile{\let\@rescanfile\relax}
\def\@nofloat#1{\hrule height\z@\nobreak\vfill\vbox\bgroup\def\@captype{#1}}
\def\end@nofloat{\egroup\nobreak\vfill\nobreak\hrule height\z@\medbreak}
\def\nofloat#1{\@for\@tempa:=#1\do{\@namedef{#1}{\@nofloat{#1}}%
\@namedef{end#1}{\end@nofloat}}}
\def\xc@makeother#1{%
\ifnum\the\catcode`#1=0\catcode`#112%
\else \ifnum\the\catcode`#1=1\catcode`#112%
\else \ifnum\the\catcode`#1=2\catcode`#112%
\else \ifnum\the\catcode`#1=6\catcode`#112%
\fi\fi\fi\fi\relax}
\newwrite\tokout
\newread\tokin
\def\rescan#1{%
\ifx\@rescanfile\relax\else
\ifx\@rescanfile\@empty #1{}\else
\immediate\openout\tokout=\@rescanfile
\immediate\write\tokout{{\the#1}\relax}%
\immediate\closeout\tokout
\openin\tokin=\@rescanfile
\read\tokin to\@tempd
\closein\tokin
\expandafter#1\@tempd%
\fi\fi}
\def\@xcomment#1#2{%
\ifx\@preamblecmds\@notprerr
\def\xc@csname{#1}%
\edef\xc@envirlist{#2}%
\ifx\xc@envirlist\@empty \@bsphack \else
\begingroup
\def\@envirsep{}%
\@ifundefined{normal@begin}{\let\normal@begin\begin}{}%
\@ifundefined{normal@end}{\let\normal@end\end}{}%
\def\begin##1{\do@begin{##1}\normal@begin{##1}}%
\def\end##1{\normal@end{##1}\do@end}%
\def\do@begin##1{\@ifundefined{##1}{}{\def\do@end{}}}%
\let\do@end\xc@begin
\fi
\let\next\xc@begin
\else
\expandafter\@temptokena\expandafter{\document\@xcomment{@@@}{#2}}%
\edef\document{\the\@temptokena}%
\let\next\relax
\fi
\next}
\def\end@xcomment{\ifx\xc@envirlist\@empty \@esphack \else \endgroup \fi}%
\def\xc@begin{%
\begingroup
\let\do\xc@makeother
\dospecials
\ifx\xcommentchar\@empty\else
\expandafter\catcode\expandafter`\xcommentchar=14
\fi
\catcode`\^^M\active
\xcomment@}
\def\xcommentchar{\%}
\begingroup
\catcode`\!=12
\catcode`\[=12
\catcode`\]=12
\catcode`\"=12
\lccode`\!=`\\
\lccode`\[=`\{
\lccode`\]=`\}
\lccode`\"=`\%
\catcode`\~=\active
\lccode`\~=`\^^M
\lowercase{
\gdef\xcomment@#1~{\xcomment@@#1\@nnil!\@nil}
\gdef\xcomment@@#1!{\xcomment@@@}
\gdef\xcomment@@@#1\@nil{%
\def\@tempa{#1}%
\ifx\@tempa\@empty
\let\next\xcomment@
\else
\def\next{\xcomment@@#1\@nil}%
\@testtrue
\xc@checkbegin#1\relax begin[]\relax\relax
\if@test
\xc@checkend#1\relax end[]\relax\relax
\if@test
\xc@checkinput#1\relax input[]\relax\relax
\if@test
\xc@checkinclude#1\relax include[]\relax\relax
\if@test
\xc@checkendinput#1\relax endinputss\relax\relax
\fi\fi\fi\fi\fi
\next}
\gdef\xc@checkbegin#1begin[#2]#3\relax#4\relax{%
\def\@tempa{#1}%
\ifx\@tempa\@empty
\def\@tempa{#2}%
\@for\@tempb:=\xc@envirlist\do{%
\ifx\@tempa\@tempb\def\next{\xc@end{#2}#3\@nil}\fi}%
\fi}
\gdef\xc@checkend#1end[#2]#3\relax#4\relax{%
\def\@tempa{#1}%
\ifx\@tempa\@empty
\@testfalse
\def\@tempa{#2}\def\@tempb{document}%
\ifx\@tempa\@tempb
\def\next{\endgroup\end@xcomment\end{document}}%
\else
\ifx\@tempa\xc@csname
\def\next{\end@@xcomment{#2}#3\@nil}%
\fi\fi\fi}
\gdef\xc@checkinput#1input[#2]#3\relax#4\relax{%
\def\@tempa{#1}%
\ifx\@tempa\@empty
\def\next{\expandafter\xcomment@\@@input #2 \xcomment@@#3\@nil}%
\@testfalse
\fi}
\gdef\xc@checkendinput#1endinput#2#3\relax#4\relax{%
\def\@tempa{#1}%
\ifx\@tempa\@empty\ifcat\noexpand#2a\relax\else
\let\next\endinput
\fi\fi}
\gdef\xc@checkinclude#1include[#2]#3\relax#4\relax{%
\def\@tempa{#1}%
\ifx\@tempa\@empty
\def\next{%
\global\let\xc@savedinput\@@input
\def\@@input{%
\global\let\@@input\xc@savedinput
\expandafter\xcomment@\@@input}%
\include{#2}%
\global\let\@@input\xc@savedinput
\xcomment@@#3\@nil}%
\@testfalse
\fi}
\gdef\end@@xcomment#1#2\@nnil!\@nil{%
\endgroup
\toks@{#2 }\rescan{\toks@}%
\edef\next{\noexpand\end@xcomment\noexpand\end{#1}\the\toks@}%
\next}%
\gdef\xc@end#1#2\@nnil!\@nil{%
\endgroup
\@envirsep \let\@envirsep\envirsep
\toks@{#2 }\rescan{\toks@}%
\edef\next{\noexpand\normal@begin{#1}\the\toks@}%
\next}%
}% END OF LOWERCASE
\endgroup
\endinput
%%
%% End of file `xcomment.sty'.
|
