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%%
%% This is file `picture.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% picture.dtx  (with options: `package')
%% 
%% This is a generated file.
%% 
%% Project: picture
%% Version: 2009/10/11 v1.3
%% 
%% Copyright (C) 2006-2009 by
%%    Heiko Oberdiek <heiko.oberdiek at googlemail.com>
%% 
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either
%% version 1.3c of this license or (at your option) any later
%% version. This version of this license is in
%%    http://www.latex-project.org/lppl/lppl-1-3c.txt
%% and the latest version of this license is in
%%    http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of
%% LaTeX version 2005/12/01 or later.
%% 
%% This work has the LPPL maintenance status "maintained".
%% 
%% This Current Maintainer of this work is Heiko Oberdiek.
%% 
%% This work consists of the main source file picture.dtx
%% and the derived files
%%    picture.sty, picture.pdf, picture.ins, picture.drv,
%%    picture-example.tex.
%% 
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{picture}%
  [2009/10/11 v1.3 Dimens for picture macros (HO)]%
\def\Pc@calcname{calc}
\def\Pc@etexname{etex}
\def\Pc@plainname{plain}
\@ifpackageloaded{calc}{%
  \let\Pc@method\Pc@calcname
}{%
  \begingroup\expandafter\expandafter\expandafter\endgroup
  \expandafter\ifx\csname dimexpr\endcsname\relax
    \let\Pc@method\Pc@plainname
  \else
    \let\Pc@method\Pc@etexname
  \fi
}
\DeclareOption{plain}{%
  \let\Pc@method\Pc@plainname
}
\DeclareOption{etex}{%
  \begingroup\expandafter\expandafter\expandafter\endgroup
  \expandafter\ifx\csname dimexpr\endcsname\relax
    \PackageError{picture}{%
      e-TeX is not available%
    }\@ehc
  \else
    \let\Pc@method\Pc@etexname
  \fi
}
\DeclareOption{calc}{%
  \let\Pc@method\Pc@calcname
}
\ProcessOptions*
\begingroup
  \let\on@line\@empty
  \PackageInfo{picture}{Calculation method: \Pc@method}%
\endgroup
\ifx\Pc@method\Pc@calcname
  \RequirePackage{calc}%
\fi
\ifx\Pc@method\Pc@calcname
  \def\Pc@tokslength#1{%
    \begingroup
      \let\calc@error\Pc@calc@error
      \setlength\dimen@{#1\unitlength}\Pc@next\Pc@nil{#1}%
  }%
  \let\PcOrg@calc@error\calc@error
  \@ifpackagelater{calc}{2007/08/22}{% v4.3
    \def\Pc@calc@error#1{%
      \expandafter\ifx\expandafter\unitlength\noexpand#1\relax
        \def\calc@next##1!{%
          \endgroup
          \aftergroup\afterassignment
          \aftergroup\Pc@next
        }%
        \expandafter\@firstoftwo
      \else
        \expandafter\@secondoftwo
      \fi
      {%
        \calc@next{#1}%
      }{%
        \PcOrg@calc@error{#1}%
      }%
    }%
  }{%
    \def\Pc@calc@error#1{%
      \expandafter\ifx\expandafter\unitlength\noexpand#1\relax
        \def\calc@next##1!{%
          \endgroup
          \aftergroup\afterassignment
          \aftergroup\Pc@next
        }%
        \expandafter\@gobble
      \else
        \expandafter\@firstofone
      \fi
      {%
        \PcOrg@calc@error{#1}%
      }%
    }%
  }%
\fi
\ifx\Pc@method\Pc@etexname
  \def\Pc@tokslength#1{%
    \begingroup
      \afterassignment\Pc@next
      \dimen@=\dimexpr#1\unitlength\Pc@nil{#1}%
  }%
\fi
\ifx\Pc@method\Pc@plainname
  \def\Pc@tokslength#1{%
    \begingroup
      \afterassignment\Pc@next
      \dimen@=#1\unitlength\Pc@nil{#1}%
  }%
\fi
\def\Pc@next#1\Pc@nil#2{%
  \ifx\\#1\\%
    \endgroup
    \Pc@addtoks{{#2}}%
  \else
    \expandafter\endgroup
    \expandafter\Pc@addtoks\expandafter{%
      \expandafter{\the\dimen@\@gobble}%
    }%
  \fi
}
\let\Pc@nil\message
\def\Pc@addtoks#1{%
  \toks@=\expandafter{\the\toks@#1}%
}
\def\Pc@init#1{%
  \begingroup
    \toks@={#1}%
}
\def\Pc@finish#1{%
  \expandafter\endgroup
  \expandafter#1\the\toks@
}
\def\picture@redefine#1#2{%
  \begingroup
    \edef\reserved@a{%
      \noexpand\noexpand
      \expandafter\noexpand
          \csname PcOrg@\expandafter\@gobble\string#1\endcsname
    }%
    \toks0{#1}%
    \Pc@first#2&0%
}
\def\Pc@first#1&{%
  \toks1={#1}%
  \toks2={\Pc@init{#1}}%
  \Pc@scanlength
}
\def\Pc@scanlength#1{%
  \ifcase#1 %
    \expandafter\Pc@last
  \else
    \toks1=\expandafter{\the\toks1 ###1}%
    \toks2=\expandafter{\the\toks2 \Pc@tokslength{###1}}%
    \expandafter\Pc@scannext
  \fi
}
\def\Pc@scannext#1&{%
  \ifx\\#1\\%
  \else
    \toks1=\expandafter{\the\toks1 #1}%
    \toks2=\expandafter{\the\toks2 \Pc@addtoks{#1}}%
  \fi
  \Pc@scanlength
}
\def\Pc@last{%
  \edef\x{%
    \endgroup
    \let\reserved@a\the\toks0 %
    \def\the\toks0 \the\toks1 {%
      \the\toks2 %
      \noexpand\Pc@finish\reserved@a
    }%
  }%
  \x
}
\picture@redefine\@picture{(&1,&2)(&3,&4)}
\picture@redefine\put{(&1,&2)}
\picture@redefine\multiput{(&1,&2)}
\picture@redefine\@multiput{(&1,&2)}
\picture@redefine\line{(#1,#2)&3}
\picture@redefine\vector{(#1,#2)&3}
\picture@redefine\dashbox{&1(&2,&3)}
\picture@redefine\@circle{&1}
\picture@redefine\@dot{&1}
\picture@redefine\@bezier{#1(&2,&3)(&4,&5)(&6,&7)}
\picture@redefine\@imakepicbox{(&1,&2)}
\@ifpackageloaded{pspicture}{%
  \picture@redefine\@oval{[&1](&2,&3)}%
  \picture@redefine\Line{(&1,&2)}%
  \picture@redefine\Curve{(&1,&2)}%
  \picture@redefine\Vector{(&1,&2)}%
}{%
  \picture@redefine\@oval{(&1,&2)}%
}
\def\Pc@checkpackage#1{%
  \@ifpackageloaded{#1}{%
  }{%
    \AtBeginDocument{%
      \@ifpackageloaded{#1}{%
        \PackageWarningNoLine{picture}{%
          Package `#1' is loaded after `picture'.\MessageBreak
          Load package `picture' afterwards to get full support%
          \MessageBreak
          of its additional syntax with length specifications%
        }%
      }{}%
    }%
  }%
}
\Pc@checkpackage{pict2e}
\Pc@checkpackage{pspicture}
\endinput
%%
%% End of file `picture.sty'.

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