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\ProvidesPackage{arabicnumbers}
[2010/03/18 v0.2 %
Formatting of Arabic and Farsi digits and of Arabic abjad numerals]
\def\arabicdigits#1{\expandafter\@arabic@digits #1@}
\def\@arabic@digits#1{%
\ifx @#1% then terminate
\else
\ifx0#1٠\else\ifx1#1١\else\ifx2#1٢\else\ifx3#1٣\else\ifx4#1٤\else\ifx5#1٥\else\ifx6#1٦\else\ifx7#1٧\else\ifx8#1٨\else\ifx9#1٩\else#1\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
\expandafter\@arabic@digits
\fi
}
\def\farsidigits#1{\expandafter\@farsi@digits #1@}
\def\@farsi@digits#1{%
\ifx @#1% then terminate
\else
\ifx0#1۰\else\ifx1#1۱\else\ifx2#1۲\else\ifx3#1۳\else\ifx4#1۴\else\ifx5#1۵\else\ifx6#1۶\else\ifx7#1۷\else\ifx8#1۸\else\ifx9#1۹\else#1\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
\expandafter\@farsi@digits
\fi
}
\newif\ifabjad@jim@notail
\abjad@jim@notailfalse
\def\abjad#1{%
\ifnum#1>1999\xpg@ill@value{#1}{abjad numeral}%
\else
\ifnum#1<\z@\space\xpg@ill@value{#1}{abjad numeral}%
\else
\ifnum#1<10\expandafter\abj@num@i@iso\number#1%
\else
\ifnum#1<100\expandafter\abj@num@ii\number#1%
\else
\ifnum#1<\@m\expandafter\abj@num@iii\number#1%
\else
\ifnum#1<\@M\expandafter\abj@num@iv\number#1%since #1<2000, we must have 1000
\fi
\fi
\fi
\fi
\fi
\fi
}
\def\abjad@zero{}
\def\abjad@one{ا}
\def\abjad@three{ج\ifabjad@jim@notail\Uchar"200D\fi}
\def\abj@num@i@iso#1{%
\ifcase#1\abjad@zero\or \abjad@one\or ب\or\abjad@three\or د%
\or ه\Uchar"200D\or و\or ز\or ح\or ط\fi}
\def\abj@num@i#1{%
\ifcase#1\abjad@zero\or\abjad@one\or ب\or\abjad@three\or د%
\or ه\or و\or ز\or ح\or ط\fi}
\def\abj@num@ii#1{%
\ifcase#1\or ي\or ك\or ل\or م\or ن%
\or س\or ع\or ف\or ص\fi
\abj@num@i}
\def\abj@num@iii#1{%
\ifcase#1\or ق\or ر\or ش\or ت\or ث%
\or خ\or ذ\or ض\or ظ\fi
\abj@num@ii}
\def\abj@num@iv#1{%
\ifcase#1\or غ\fi
\abj@num@iii}
\endinput
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