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%%% Adapted from a file contributed by Kamal Abdali
\ProvidesFile{gloss-urdu.ldf}[polyglossia: module for Urdu]
\RequirePackage{bidi}
\RequirePackage{arabicnumbers}
\RequirePackage{hijrical}
\makeatletter

\ifx\l@urdu\@undefined
  %\xpg@nopatterns{urdu}%
  \adddialect\l@urdu\l@nohyphenation
\fi

\def\urdu@RL{\relax}

\newif\if@western@numerals
\def\tmp@western{western}
\define@key{urdu}{numerals}[eastern]{%
	\def\@tmpa{#1}%
	\ifx\@tmpa\tmp@western\@western@numeralstrue%
	  \else\@western@numeralsfalse%
	\fi}

%this is needed for \abjad in arabicnumbers.sty
\def\tmp@true{true}
\define@key{urdu}{abjadjimnotail}[true]{%
  \def\@tmpa{#1}%
  \ifx\@tmpa\tmp@true\abjad@jim@notailtrue%
  \else
    \abjad@jim@notailfalse
  \fi}

\newif\if@hijrical
\def\tmp@hijri{hijri}
\define@key{urdu}{calendar}[gregorian]{%
  \def\@tmpa{#1}%
  \ifx\@tmpa\tmp@hijri\@hijricaltrue%
    \else\@hijricalfalse%
  \fi}

\define@key{urdu}{hijricorrection}[0]{%
  \gdef\@hijri@correction{#1}}%

% This should set the defaults
\setkeys{urdu}{calendar,numerals,hijricorrection}

\def\urdugregmonth#1{\ifcase#1%
  \or جنوری\or فروری\or مارچ\or اپریل\or مئی\or جون\or جولائی\or اگست\or  ستمبر\or اکتوبر\or نومبر\or دسمبر\fi}

\def\urduhijrimonth#1{\ifcase#1%
 \or محرّم\or صفر\or ربیع الاوّل\or ربیع الثّانی\or جمادی الاوّل\or جمادی الثّانی\or رجب\or شعبان\or  رمضان\or شوّال\or ذیقعدہ\or ذی الحجّہ\fi}

%\Hijritoday is now locale-aware and will format the date with this macro:
\DefineFormatHijriDate{urdu}{\@ensure@RTL{%
\urdunumber{\value{Hijriday}}؍\space\urduhijrimonth{\value{Hijrimonth}}\space\urdunumber{\value{Hijriyear}}}}

\def\captionsurdu{%
\def\refname{\@ensure@RTL{حوالہ جات}}%
\def\abstractname{\@ensure@RTL{ملخّص}}%
\def\bibname{\@ensure@RTL{کتابیات}}%
\def\prefacename{\@ensure@RTL{دیباچہ}}%
\def\chaptername{\@ensure@RTL{باب}}%
\def\appendixname{\@ensure@RTL{ضمیمہ}}%
\def\contentsname{\@ensure@RTL{فہرست عنوانات}}%
\def\listfigurename{\@ensure@RTL{فہرست اشکال}}%
\def\listtablename{\@ensure@RTL{فہرست جداول}}%
\def\indexname{\@ensure@RTL{اشاریہ}}%
\def\figurename{\@ensure@RTL{شكل}}%
\def\tablename{\@ensure@RTL{جدول}}%
%\def\thepart{\text<lang>{}}%
\def\partname{\@ensure@RTL{حصّہ}}%
\def\pagename{\@ensure@RTL{صفحہ}}%
\def\seename{\@ensure@RTL{ملاحظہ ہو}}%
\def\alsoname{\@ensure@RTL{ایضاً}}%
\def\enclname{\@ensure@RTL{منسلک}}%
\def\ccname{\@ensure@RTL{نقل}}%
\def\headtoname{\@ensure@RTL{بملاحظہ}}%
\def\proofname{\@ensure@RTL{ثبوت}}%
\def\glossaryname{\@ensure@RTL{لغت}}%
\def\sectionname{\@ensure@RTL{فصل}}%
}

\def\dateurdu{%
  \def\today{%
    \if@hijrical
     \Hijritoday[\@hijri@correction]%
    \else
      \@ensure@RTL{\urdunumber\day؍\space\urdugregmonth{\month}%
         \space\urdunumber\year}%
    \fi}%
}

\def\urdunumber#1{%
  \if@western@numerals
    \number#1%
  \else
    %%FIXME use farsidigits instead???
    \protect\arabicdigits{\number#1}%
    %%{\protect\addfontfeature{Mapping=arabicdigits}\number#1}%
  \fi}

\def\urdu@numbers{%
   \let\@latinalph\@alph%
   \let\@latinAlph\@Alph%
   \let\@alph\abjad%
   \let\@Alph\abjad%
  }
\def\nourdu@numbers{%
  \let\@alph\@latinalph%
  \let\@Alph\@latinAlph%
  }
\def\urdu@globalnumbers{%
   \let\orig@arabic\@arabic%
   \let\@arabic\urdunumber%
   % For some reason \thefootnote needs to be set separately:
   \renewcommand\thefootnote{\protect\urdunumber{\c@footnote}}%
   }
\def\nourdu@globalnumbers{
   \let\@arabic\orig@arabic%
   \renewcommand\thefootnote{\protect\number{\c@footnote}}%
   }

\def\urdu@language{\language=\l@urdu}

\def\urdu@font{%
  \@ifundefined{urdufont}{%
    \@ifundefined{arabicfont}{%
      \normalfontlatin%
      \font\zf@basefont="\csname zf@family@fontdef\f@family\endcsname" at \f@size pt
      \zf@check@ot@script{arab}%
      \if@tempswa
        \addfontfeature{Script=Arabic}%
      \else
        \PackageError{polyglossia}{^^J
    The current font does not contain the Arabic script!^^J
    Please define \string\arabicfont\space or \string\urdufont\space with \newfontfamily}%
      \fi
      \zf@check@ot@lang{URD}%
      \if@tempswa\addfontfeature{Language=urdu}\fi}%
    {\arabicfont%
    \font\zf@basefont="\csname zf@family@fontdef\f@family\endcsname" at \f@size pt
    \zf@check@ot@lang{URD}%
    \if@tempswa\addfontfeature{Language=urdu}\fi}%
    }%
  {\urdufont}%
}

% TODO add setup to define Sans and Mono Arabic fonts if desired
\def\urdu@font@sf{%
  \@ifundefined{urdufontsf}{%
%  \sffamily% FIXME
%    \font\zf@basefont="\csname zf@family@fontdef\f@family\endcsname" at \f@size pt
%  \zf@check@ot@script{arab}%
%  \if@tempswa%
%    \addfontfeature{Script=Arabic}%
%  \else%
    \urdu@font%
%  \fi%
  }%
  {\urdufontsf}%
}
\def\urdu@font@tt{%
  \@ifundefined{urdufonttt}{%
%    \ttfamily% FIXME
%    \font\zf@basefont="\csname zf@family@fontdef\f@family\endcsname" at \f@size pt
%  \zf@check@ot@script{arab}%
%  \if@tempswa%
%    \addfontfeature{Script=Arabic}%
%  \else%
    \urdu@font%
%  \fi%
  }%
  {\urdufonttt}%
}

\def\selectnormalfonturdu{%
   \let\normalfont=\urdu@font%
   \let\rmfamily=\urdu@font%
   \let\sffamily=\urdu@font@sf%
   \let\ttfamily=\urdu@font@tt%
   \def\reset@font{\normalfont}}

\def\blockextras@urdu{%
   \let\@@MakeUppercase\MakeUppercase%
   \def\MakeUppercase##1{##1}%
   }
\def\noextras@urdu{%
   \let\MakeUppercase\@@MakeUppercase%
   }
\endinput