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\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{regions2}[2014/09/29 v1.0 (NLCT) Sample package to test tracklang.sty]

\RequirePackage{tracklang}

\newcommand*{\weightunit}{kg}
\newcommand*{\lengthunit}{mm}
\newcommand*{\currencyunit}{EUR}

\newcommand*{\unitname}{units}

\newcommand*{\defaultunits}{%
  \renewcommand*{\weightunit}{kg}%
  \renewcommand*{\lengthunit}{mm}%
  \renewcommand*{\currencyunit}{EUR}%
}

\AnyTrackedLanguages
{%
  \ForEachTrackedDialect{\this@dialect}{%
    \IfTrackedLanguageFileExists{\this@dialect}%
    {regions-}% prefix
    {.ldf}%
    {%
      \PackageInfo{regions2}{Loading `regions-\CurrentTrackedTag.ldf'
      for language `\this@dialect'}%
      \input{regions-\CurrentTrackedTag.ldf}%
      \ifx\CurrentTrackedTag\CurrentTrackedLanguage
        \defaultunits
      \else
        \InputIfFileExists{regions-\CurrentTrackedLanguage.ldf}%
        {}%
        {%
          \PackageWarning{regions2}{No support for language
            `\CurrentTrackedLanguage'}%
        }%
      \fi
    }%
    {%
       \PackageWarning{regions2}%
       {No support for language `\this@dialect'}%
    }%
  }%
}
{% no tracked languages, default already set up
}

\endinput