%%
%% This is file `iflang.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% iflang.dtx  (with options: `package')
%% 
%% This is a generated file.
%% 
%% Copyright (C) 2007 by Heiko Oberdiek <oberdiek@uni-freiburg.de>
%% 
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either
%% version 1.3 of this license or (at your option) any later
%% version. 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 iflang.dtx
%% and the derived files
%%    iflang.sty, iflang.pdf, iflang.ins, iflang.drv,
%%    iflang-test1.tex, iflang-test2.tex, iflang-test3.tex.
%% 
\begingroup
  \catcode44 12 % ,
  \catcode45 12 % -
  \catcode46 12 % .
  \catcode58 12 % :
  \catcode64 11 % @
  \expandafter\let\expandafter\x\csname ver@iflang.sty\endcsname
  \ifcase 0%
    \ifx\x\relax % plain
    \else
      \ifx\x\empty % LaTeX
      \else
        1%
      \fi
    \fi
  \else
    \expandafter\ifx\csname PackageInfo\endcsname\relax
      \def\x#1#2{%
        \immediate\write-1{Package #1 Info: #2.}%
      }%
    \else
      \def\x#1#2{\PackageInfo{#1}{#2, stopped}}%
    \fi
    \x{iflang}{The package is already loaded}%
    \endgroup
    \expandafter\endinput
  \fi
\endgroup
\begingroup
  \catcode44 12 % ,
  \catcode45 12 % -
  \catcode46 12 % .
  \catcode58 12 % :
  \catcode64 11 % @
  \expandafter\ifx\csname ProvidesPackage\endcsname\relax
    \def\x#1#2#3[#4]{\endgroup
      \immediate\write-1{Package: #3 #4}%
      \xdef#1{#4}%
    }%
  \else
    \def\x#1#2[#3]{\endgroup
      #2[{#3}]%
      \ifx#1\relax
        \xdef#1{#3}%
      \fi
    }%
  \fi
\expandafter\x\csname ver@iflang.sty\endcsname
\ProvidesPackage{iflang}%
  [2007/04/26 v1.3 Language checks (HO)]
\expandafter\edef\csname IfLang@endinput\endcsname{%
  \catcode39 \the\catcode39\relax % '
  \catcode40 \the\catcode40\relax % (
  \catcode41 \the\catcode41\relax % )
  \catcode61 \the\catcode61\relax % =
  \catcode64 \the\catcode64\relax % @
  \noexpand\endinput
}
\catcode39 12\relax % '
\catcode40 12\relax % (
\catcode41 12\relax % )
\catcode61 12\relax % =
\catcode64 11\relax % @
\expandafter\ifx\csname @firstoftwo\endcsname\relax
  \long\def\@firstoftwo#1#2{#1}%
\fi
\expandafter\ifx\csname @secondoftwo\endcsname\relax
  \long\def\@secondoftwo#1#2{#2}%
\fi
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname ifcsname\endcsname\relax
  \expandafter\@firstoftwo
\else
  \expandafter\@secondoftwo
\fi
{%
  \def\IfLang@IfDefined#1{%
    \expandafter\ifx\csname#1\endcsname\relax
      \expandafter\@secondoftwo
    \else
      \expandafter\@firstoftwo
    \fi
  }%
}{%
  \def\IfLang@IfDefined#1{%
    \ifnum\ifcsname#1\endcsname
            \expandafter\ifx\csname#1\endcsname\relax
              1%
            \else
              0%
            \fi
          \else
            1%
          \fi
          =0 %
      \expandafter\@firstoftwo
    \else
      \expandafter\@secondoftwo
    \fi
  }%
}
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname RequirePackage\endcsname\relax
  \input infwarerr.sty\relax
\else
  \RequirePackage{infwarerr}%
\fi
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname uselanguage\endcsname\relax
  \@PackageInfoNoLine{iflang}{%
    Naming convention for patterns: babel%
  }%
  \def\IfLang@prefix{l@}%
\else
  \@PackageInfoNoLine{iflang}{%
    Naming convention for patterns: etex.src%
  }%
  \def\IfLang@prefix{lang@}%
  \let\IfLang@OrgUseLanguage\uselanguage
  \def\uselanguage#1{%
    \edef\languagename{#1}%
    \IfLang@OrgUseLanguage{#1}%
  }%
  \begingroup\expandafter\expandafter\expandafter\endgroup
  \expandafter\ifx\csname languagename\endcsname\relax
    \begingroup\expandafter\expandafter\expandafter\endgroup
    \expandafter\ifx\csname lang@USenglish\endcsname\relax
      \@PackageWarningNoLine{iflang}{%
        \string\lang@USenglish\space is missing%
      }%
    \else
      \ifnum\lang@USenglish=\language
        \def\languagename{USenglish}%
      \else
        \@PackageWarningNoLine{iflang}{%
          \string\languagename\space is not set,\MessageBreak
          current language is unknown%
        }%
      \fi
    \fi
  \fi
\fi
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname languagename\endcsname\relax
  \@PackageInfoNoLine{iflang}{%
    \string\languagename\space is not set%
  }%
\fi
\def\IfLanguagePatterns#1{%
  \ifnum\IfLang@IfDefined{\IfLang@prefix#1}{%
          \ifnum\csname\IfLang@prefix#1\endcsname=\language
            0%
          \else
            1%
          \fi
        }{1}=0 %
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi
}
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname pdfstrcmp\endcsname\relax
  \expandafter\@firstoftwo
\else
  \expandafter\@secondoftwo
\fi
{%
  \def\IfLang@StrNil{\relax}%
  \def\IfLang@StrEqual#1{%
    \number\IfLang@StrEqualStart{}{}#1\IfLang@StrNil
  }%
  \def\IfLang@StrEqualStart#1#2#3{%
    \ifx#3\IfLang@StrNil
      \IfLang@StrEqualStop
    \fi
    \ifcat\noexpand#3\relax
      \IfLang@StrExpand{#1}{#2}#3%
    \fi
    \IfLang@StrEqualStart{\if#3#1}{#2\fi}%
  }%
  \def\IfLang@StrEqualStop\fi#1\IfLang@StrEqualStart#2#3#4{%
    \fi
    #2#4\relax'#313 %
  }%
  \def\IfLang@StrExpand#1#2#3\fi\IfLang@StrEqualStart#4#5{%
    \fi
    \IfLang@@StrExpand{#1}{#2}#3%
  }%
  \def\IfLang@@StrExpand#1#2#3\IfLang@StrNil{%
    \expandafter\IfLang@@@StrExpand#3\IfLang@StrNil{#1}{#2}%
  }%
  \def\IfLang@@@StrExpand#1\IfLang@StrNil#2#3{%
    \IfLang@StrEqualStart{#2}{#3}#1\IfLang@StrNil
  }%
  \def\IfLanguageName#1{%
    \ifnum\IfLang@IfDefined{languagename}{%
            \if\expandafter\IfLang@strequal\expandafter%
                           {\languagename}{#1}%
              0%
            \else
              1%
            \fi
          }{1}=0 %
      \expandafter\@firstoftwo
    \else
      \expandafter\@secondoftwo
    \fi
  }%
}{%
  \def\IfLanguageName#1{%
    \ifnum\IfLang@IfDefined{languagename}{%
            \pdfstrcmp{#1}{\languagename}%
          }{1}=0 %
      \expandafter\@firstoftwo
    \else
      \expandafter\@secondoftwo
    \fi
  }%
}
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname languagename\endcsname\relax
\else
  \IfLanguagePatterns{\languagename}{}{%
    \@PackageWarningNoLine{iflang}{%
      Mismatch between \string\language\space
      (patterns)\MessageBreak
      and setting of \string\languagename
    }%
  }%
\fi
\IfLang@endinput
\endinput
%%
%% End of file `iflang.sty'.
