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Current File : //proc/self/root/data/old/usr/share/texlive/texmf-dist/tex/latex/xifthen/xifthen.sty

\def \filedate    {2009/04/17}%
\def \fileversion {v1.3}%
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{xifthen}%
  [\filedate \space \fileversion \space Extended ifthen features]

\RequirePackage{etex}
\RequirePackage{calc}
\RequirePackage{ifthen}
\RequirePackage{ifmtarg}

% First of all, \TE@repl (ifthen) needs to be patched. (v1.2)
%   (viz. \newtest{\superlogique}[1]{\(\NOT#1\AND\boolean{true}\)})
%   Pointed out by MPG and Pierre Albar\`ede [19 Mar 2009]

\def \TE@repl #1#2{%
  \long \def \@tempc ##1#1##2{%
    \def \@tempb{\@tempc}%
    \begingroup % Thanks MPG
      \toks@ {##2}%
      \edef \@tempa {\the \toks@}% <- UF v1.3
    \expandafter \endgroup
    \ifx \@tempa \@tempb
      \toks@ \expandafter {\the \toks@ ##1}%
      \expandafter \@gobble
    \else
      \toks@ \expandafter {\the \toks@ ##1#2}%
      \expandafter \@tempc
    \fi
    ##2%
  }%
  \toks@ \expandafter {\expandafter}%
  \expandafter \@tempc \the \toks@ #1\@tempc
}

% \cnttest {<counter expression>} {<relation>} {<counter expression>}
%
\newcommand*{\TE@cnttest}[4]{%
  \TE@throw
  \noexpand \calc@assign@count{\@tempcnta}{\unexpanded{#1}}%
  \noexpand \calc@assign@count{\@tempcntb}{\unexpanded{#3}}%
  \noexpand \if \noexpand \TE@cnttest@ {#2}%
  #4%
}

\newcommand*{\TE@cnttest@}[1]{%
  \ifcsname TE@cnttest@@#1\endcsname
    \csname TE@cnttest@@#1\expandafter\expandafter\expandafter \endcsname
    \expandafter \@gobble
  \else
    \expandafter \@firstofone
  \fi
  {FF\PackageError{xifthen}{Not a valid comparison operator "#1"}%
                         {Valid comparisons are <, =, >, <=, and =>.}}%
}

\@namedef{TE@cnttest@@<}{\ifnum \@tempcnta<\@tempcntb AA\else AB\fi}
\@namedef{TE@cnttest@@>}{\ifnum \@tempcnta>\@tempcntb AA\else AB\fi}
\@namedef{TE@cnttest@@=}{\ifnum \@tempcnta=\@tempcntb AA\else AB\fi}
\@namedef{TE@cnttest@@<=}{%
  \ifnum \@tempcnta<\@tempcntb AA\else
    \ifnum \@tempcnta=\@tempcntb AA\else AB\fi
  \fi
}
\@namedef{TE@cnttest@@>=}{%
  \ifnum \@tempcnta>\@tempcntb AA\else
    \ifnum \@tempcnta=\@tempcntb AA\else AB\fi
  \fi
}

% \dimtest {<dimension expression>} {<relation>} {<dimension expression>}
%
\newcommand*{\TE@dimtest}[4]{%
  \TE@throw
  \noexpand \calc@assign@skip{\@tempskipa}{\unexpanded{#1}}%
  \noexpand \calc@assign@skip{\@tempskipb}{\unexpanded{#3}}%
  \noexpand \if \noexpand \TE@dimtest@ {#2}%
  #4%
}

\newcommand*{\TE@dimtest@}[1]{%
  \ifcsname TE@dimtest@@#1\endcsname
    \csname TE@dimtest@@#1\expandafter\expandafter\expandafter \endcsname
    \expandafter \@gobble
  \else
    \expandafter \@firstofone
  \fi
  {FF\PackageError{xifthen}{Not a valid comparison operator "#1"}%
                         {Valid comparisons are <, =, >, <=, and =>.}}%
}

\@namedef{TE@dimtest@@<}{\ifdim \@tempskipa<\@tempskipb AA\else AB\fi}
\@namedef{TE@dimtest@@>}{\ifdim \@tempskipa>\@tempskipb AA\else AB\fi}
\@namedef{TE@dimtest@@=}{\ifdim \@tempskipa=\@tempskipb AA\else AB\fi}
\@namedef{TE@dimtest@@<=}{%
  \ifdim \@tempskipa<\@tempskipb AA\else
    \ifdim \@tempskipa=\@tempskipb AA\else AB\fi
  \fi
}
\@namedef{TE@dimtest@@>=}{%
  \ifdim \@tempskipa>\@tempskipb AA\else
    \ifdim \@tempskipa=\@tempskipb AA\else AB\fi
  \fi
}

% \isnamedefined {<command name>}
%
\newcommand*{\TE@isnamedefined}[2]{%
  \TE@throw
  \noexpand \ifcsname #1\endcsname
  #2%
}

% \isempty {<content>}
%
\newcommand*{\TE@isempty}[2]{%
  \TE@throw
  \noexpand \if FF\noexpand \@nameuse{fi}%
  \noexpand \@ifmtarg{\unexpanded{#1}}{%
    \noexpand \@nameuse{iftrue}%
  }{%
    \noexpand \@nameuse{iffalse}%
  }%
  #2%
}

% \isequivalentto {<command>} {<command>}
%
\newcommand*{\TE@isequivalentto}[3]{%
  \TE@throw
  \noexpand \ifx \noexpand #1\noexpand#2%
  #3%
}

% \isin {<substring>} {<string>}
%
\newcommand*{\TE@isin}[3]{%
  \TE@throw
  \unexpanded {\in@{#1}{#2}}%
  \noexpand \ifin@
  #3%
}

% \endswith {<string>} {<substring>}
%
\newcommand*{\TE@endswith}[3]{%
  \TE@throw
  \unexpanded {\in@{#2\@nil}{#1\@nil}}%
  \noexpand \ifin@
  #3%
}

% \newtest <command> [<number>] {<definition>}
%
\newcommand*{\newtest}[1]{%
  \@ifnextchar[{%
    \@newtest{#1}%
  }{%
    \@newtest{#1}[0]%
  }%
}%

\newcommand*{\@newtest}{}
\def \@newtest #1[#2]#3{%
  \toks@ = {\(#3\)}%
  \TE@repl \or  \TE@or
  \TE@repl \and \TE@and
  \TE@repl \not \TE@neg
  \TE@repl \OR  \TE@or
  \TE@repl \AND \TE@and
  \TE@repl \NOT \TE@neg
  \edef \@tempa {%
    \unexpanded{\newcommand*{#1}[{#2}]}{\the \toks@}%
  }%
  \@tempa
}%

\newcommand*{\TE@hook}{%
  \let \isequivalentto = \TE@isequivalentto
  \let \terminateswith = \TE@endswith % For compability reasons (deprecated)
  \let \endswith       = \TE@endswith
  \let \isnamedefined  = \TE@isnamedefined
  \let \isempty        = \TE@isempty
  \let \cnttest        = \TE@cnttest
  \let \dimtest        = \TE@dimtest
  \let \isin           = \TE@isin
}

\renewcommand{\ifthenelse}[1]{%
  \toks@{#1}%
  \TE@repl \or  \TE@or
  \TE@repl \and \TE@and
  \TE@repl \not \TE@neg
  \TE@repl \OR  \TE@or
  \TE@repl \AND \TE@and
  \TE@repl \NOT \TE@neg
  \begingroup
    \let \protect = \@unexpandable@protect
    \def \@setref ##1##2##3{\ifx ##1\relax \z@ \else \expandafter ##2##1\fi}%
    \def \value ##1{\the \csname c@##1\endcsname}%
    \let \equal = \TE@equal
    \let \( = \TE@lparen
    \let \) = \TE@rparen
    \let \isodd = \TE@odd
    \let \lengthtest = \TE@length
    \let \isundefined = \TE@undef
    \TE@hook
    \begingroup
      \let \@tempa = \relax
      \let \@tempb = \relax
      \xdef \@gtempa {\expandafter \TE@eval \the \toks@ \TE@endeval}%
    \endgroup
    \@gtempa
    \expandafter \endgroup
  \ifTE@val
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi
}

\endinput

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