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\ProvidesFile{gloss-syriac.ldf}[polyglossia: module for syriac]
\ifluatex
  \xpg@warning{Syriac is not supported with LuaTeX.\MessageBreak
I will proceed with the compilation, but\MessageBreak
the output is not guaranteed to be correct\MessageBreak
and may look very wrong.}
\fi
\RequireBidi
\RequirePackage{arabicnumbers}

\PolyglossiaSetup{syriac}{
  bcp47=syr,
  script=Syriac,
  scripttag=syrc,
  langtag=SYR,
  direction=RL,
  hyphennames={syriac,nohyphenation},
  fontsetup=true,
  localnumeral=syriacnumerals
  %TODO localalph
}

% BCP-47 compliant aliases
\setlanguagealias*{syriac}{syr}

\def\syriacnumber#1{\@syriacnumber{#1}}%

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

% Register default options
\xpg@initialize@gloss@options{syriac}{numerals=western}
	
%\define@key{polyglossia}{syriaclocale}[default]{%
%	\def\@syriac@locale{#1}}
%
%\def\captionssyriac{%
%\def\prefacename{\@ensure@RTL{}}% 
%\def\refname{\@ensure@RTL{}}
%\def\abstractname{\@ensure@RTL{}}%
%\def\bibname{\@ensure@RTL{}}%
%\def\chaptername{\@ensure@RTL{}}%
%\def\appendixname{\@ensure@RTL{}}%
%\def\contentsname{\@ensure@RTL{}}
%\def\listfigurename{\@ensure@RTL{}}%
%\def\listtablename{\@ensure@RTL{}}%
%\def\indexname{\@ensure@RTL{}}%
%\def\figurename{\@ensure@RTL{}}%
%\def\tablename{\@ensure@RTL{}}%
%\def\partname{\@ensure@RTL{}}%
%\def\enclname{\@ensure@RTL{}}%
%\def\ccname{\@ensure@RTL{}}%
%\def\headtoname{\@ensure@RTL{}}%
%\def\pagename{\@ensure@RTL{}}%
%\def\seename{\@ensure@RTL{}}%
%\def\alsoname{\@ensure@RTL{}}%
%\def\proofname{\@ensure@RTL{}}%
%\def\glossaryname{\@ensure@RTL{}}%
%}

\def\datesyriac{%
  \def\syriac@month##1{\ifcase##1%
  \or ܟܢܘܢ ܐܚܪܝ\or ܫܒܛ\or ܐܕܪ\or ܢܝܣܢ\or ܐܝܪ\or ܚܙܝܪܢ\or ܬܡܘܙ\or ܐܒ\or ܐܝܠܘܠ% ܐܠܘܠ
   \or ܬܫܪܝܢ ܩܕܡ% ܬܫܪܝܢ ܩܕܝܡ
   \or ܬܫܪܝܢ ܐܚܪܝ\or ܟܢܘܢ ܩܕܡ% ܟܢܘܢ ܩܕܝܡ
   \fi}%
   \def\today{\@ensure@RTL{\syriacnumber\day{\space}%
    \syriac@month{\month}{\space}\syriacnumber\year}}%
}

\def\syriac@zero{}

\def\abjadsyriac#1{%
\ifnum#1>9999\xpg@ill@value{#1}{abjadsyriac}%
\else%
  \ifnum#1<\z@\space\xpg@ill@value{#1}{abjadsyriac}%
  \else%
    \ifnum#1<10\expandafter\abj@syr@num@i\number#1%
    \else%
      \ifnum#1<100\expandafter\abj@syr@num@ii\number#1%
      \else%
        \ifnum#1<1000\expandafter\abj@syr@num@iii\number#1%
	\else%
          \expandafter\abj@syr@num@iv\number#1%
	\fi%
      \fi%
    \fi%
  \fi%
\fi%
}
\def\abj@syr@num@i#1{%
  \ifcase#1\or\char"0710\or\char"0712\or\char"0713\or\char"0715%
 \or\char"0717\or\char"0718\or\char"0719\or\char"071A\or\char"071B\fi
  \ifnum#1=\z@\syriac@zero\fi}
\def\abj@syr@num@ii#1{%
  \ifcase#1\or\char"071D\or\char"071F\or\char"0720\or\char"0721\or\char"0722%
          \or\char"0723\or\char"0725\or\char"0726\or\char"0728\fi
  \ifnum#1=\z@\fi\abj@syr@num@i}
\def\abj@syr@num@iii#1{%
  \ifcase#1\or\char"0729\or\char"072A\or\char"072B\or\char"072C%
  \or\char"0722\char"0307\or\char"0723\char"0307\or\char"0725\char"0307%
  \or\char"0726\char"0307\or\char"0728\char"0307\fi
  \ifnum#1=\z@\fi\abj@syr@num@ii}
\def\abj@syr@num@iv#1{%
  \ifcase#1\or\char"0710\char"0748\or\char"0712\char"0748%
  \or\char"0713\char"0748\or\char"0715\char"0748%
  \or\char"0717\char"0748\or\char"0718\char"0748%
  \or\char"0719\char"0748\or\char"071A\char"0748\or\char"071B\char"0748\fi
  \ifnum#1=\z@\fi\abj@syr@num@iii}

\def\@syriacnumber#1{%
   \if@eastern@numerals
      %%% we test for the presence of one of ١٢٣٤٥٦٧٨٩٠ in the Syriac font, 
      %%% else we try \arabicfont if defined (and give a warning), 
      %%% else we fall back to the Western numerals.
      \xpg@if@char@available{0661}%
          {\protect\arabicdigits{\number#1}}%
          {\arabicdigits{\number#1}
           \ifcsdef{arabicfont}%
	     {\protect\arabicdigits{\number#1}%
	      \xpg@warning{You have specified the option numerals=eastern for Syriac, but the Syriac font does not contain the appropriate glyphs:
                           I am using \string\arabicfont instead}}%
	     {\number#1%%% <---changed from \RL{\protect\reset@font\protect\number#1}%
	      \xpg@warning{You have specified the option numerals=eastern for Syriac, but the Syriac font does not contain the appropriate glyphs:
                           since \string\arabicfont is not defined, we'll use Western numerals instead}}%
          }%
   \else
     %%\RL{\protect\reset@font\number#1}%
     \number#1%
   \fi%
}

\def\syriac@numbers{%
   \let\@alph\abjadsyriac%
   \let\@Alph\abjadsyriac%
}

\def\nosyriac@numbers{%
  \let\@alph\latin@alph%
  \let\@Alph\latin@Alph%
}

\newcommand{\syriacnumerals}[2]{\syriacnumber{#2}}

% Store original definition
\let\xpg@save@arabic\@arabic

\def\syriac@globalnumbers{%
  \let\@arabic\syriacnumber%
  \renewcommand\thefootnote{\localnumeral*{footnote}}%
}

\def\nosyriac@globalnumbers{%
  \let\@arabic\xpg@save@arabic%
}

% Save original \MakeUppercase definition
\let\xpg@save@MakeUppercase\MakeUppercase

\def\blockextras@syriac{%
   \def\MakeUppercase##1{##1}%
}

\def\noextras@syriac{%
   % restore original \MakeUppercase definition
   \let\MakeUppercase\xpg@save@MakeUppercase%
}

\endinput