% Language definition file (part of polyglossia v2.10 -- 2026/04/18)
%
\ProvidesFile{gloss-greek.ldf}[polyglossia: module for Greek]

\PolyglossiaSetup{greek}{
  bcp47=el-monoton,
  bcp47-language=el,
  bcp47-variant=monoton,
  bcp47-script=Grek,
  bcp47-extension-u=nu-grek,
  bcp47-casing=el,
  script=Greek,
  scripttag=grek,
  langtag=ELL,
  frenchspacing=true,
  indentfirst=true,
   localnumeral=greeknumerals,
  Localnumeral=Greeknumerals
  %TODO localalph={greek@alph,greek@Alph}
}

% BCP-47 compliant aliases
\setlanguagealias*[variant=ancient]{greek}{grc}
\setlanguagealias*[variant=polytonic]{greek}{el-polyton}
\setlanguagealias*[variant=monotonic]{greek}{el-monoton}
\setlanguagealias*{greek}{el}

% Babel aliases
\setlanguagealias[variant=polytonic]{greek}{polutonikogreek}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% The code in this file was initially adapted from the antomega
%% module for greek. Currently large parts of it derive from the 
%% package xgreek.sty (c) Apostolos Syropoulos 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% this file imported from xgreek fixes the \lccode and \uccode of Greek letters:
\input{xgreek-fixes.def}

\def\greek@variant{monogreek}

\newif\if@greek@ancient\@greek@ancientfalse
\newif\if@greek@poly\@greek@polyfalse

\def\greek@set@langdata{%
   \if@greek@ancient
       \IfLanguageDefinedF{ancientgreek}%
           {\xpg@warning{No hyphenation patterns were loaded for Ancient Greek\MessageBreak
	                 I will use the patterns loaded for \string\l@greek\space instead}%
            \adddialect\l@ancientgreek\l@greek\relax}%
       \def\greek@variant{ancientgreek}%
       \def\captionsgreek{\ancientgreekcaptions}%
       \def\dategreek{\dateancientgreek}%
       \SetLanguageKeys{greek}{babelname=greek,bcp47=grc,bcp47-language=grc,bcp47-variant={}}%
   \else
      \if@greek@poly
          \IfLanguageDefinedF{polygreek}%
              {\xpg@warning{No hyphenation patterns were loaded for Polytonic Greek\MessageBreak
	                    I will use the patterns loaded for \string\l@greek\space instead}%
               \adddialect\l@polygreek\l@greek\relax}%
          \def\greek@variant{polygreek}%
          \def\captionsgreek{\polygreekcaptions}%
          \def\dategreek{\datepolygreek}%
          \SetLanguageKeys{greek}{babelname=polutonikogreek,bcp47=el-polyton,bcp47-language=el,bcp47-variant=polyton}%
      \else% monotonic greek
          \IfLanguageDefinedF{monogreek}%
              {\xpg@warning{No hyphenation patterns were loaded for Monotonic Greek\MessageBreak
	                    I will use the patterns loaded for \string\l@greek\space instead}%
               \adddialect\l@monogreek\l@greek\relax}%
          \def\greek@variant{monogreek}% monotonic
          \def\captionsgreek{\monogreekcaptions}%
          \def\dategreek{\datemonogreek}%
          \SetLanguageKeys{greek}{babelname=greek,bcp47=el-monoton,bcp47-language=el,bcp47-variant=monoton}%
      \fi%   
   \fi%
}


\def\greek@language{%
  \SetupPolyglossiaLangPatterns{\greek@variant}%
}


\newif\if@greek@numerals
\newif\if@greek@archaickoppa

\DeclareKeys[polyglossia/gloss/greek]
  {
    variant.choices:nn = { monotonic, mono,polytonic, poly,ancient, ancientgreek }
      {%
        \CheckHyphenationPatterns{greek}%
        \ifcase\UseName{l_keys_choice_int}\or
          % monotonic:
          \@greek@polyfalse
          \@greek@ancientfalse
        \or
          % mono:
          \@greek@polyfalse
          \@greek@ancientfalse
        \or
          % polytonic:
          \@greek@polytrue
          \@greek@ancientfalse
        \or
          % poly:
          \@greek@polytrue
          \@greek@ancientfalse
        \or
          % ancient:
          \@greek@polyfalse
          \@greek@ancienttrue
        \or
          % ancientgreek:
          \@greek@polyfalse
          \@greek@ancienttrue
        \fi
        \greek@set@langdata
      },
    variant.default:n = monotonic,
    variant/unknown.code = \xpg@warning{Unknown Greek variant `#1'},
    numerals.choice:,
    numerals / greek.code =
      {%      
        \@greek@numeralstrue
        \SetLanguageKeys{greek}{bcp47-extension-u=nu-grek}%
      },
    numerals / arabic.code =
      {%
        \@greek@numeralsfalse
        \SetLanguageKeys{greek}{bcp47-extension-u=nu-latn}%
      },
    numerals.default:n = greek,
    numerals/unknown.code = \xpg@warning{Unknown Greek numerals value `#1'},
    koppa.choice:,
    koppa / archaic.code =
      {%      
        \@greek@archaickoppatrue
      },
    koppa / modern.code =
      {%
        \@greek@archaickoppafalse
      },
    koppa.default:n = modern,
    koppa/unknown.code = \xpg@warning{Unknown Greek koppa value `#1'},
    capitaliota.choice:,
    capitaliota / true.code =
      {%
        \@greek@capitaliotatrue
        % \MakeUppercase converts the ypogegrammeni (subscript muted iota) to capital iota
        \SetLanguageKeys{greek}{bcp47-casing=el-x-iota,bcp47-extension-x=iota}%
      },
    capitaliota / false.code =
      {%
        \@greek@capitaliotafalse
        % \MakeUppercase retains the subscript versions (default)
        \SetLanguageKeys{greek}{bcp47-casing=el,bcp47-extension-x={}}%
      },
    capitaliota.default:n = true,
    attic.choices:nn = { true, false }
      {%
        \xpg@warning{Greek option `attic' is no longer required.}
      },
  }

% Register default options
\InitializeGlossOptions{greek}{variant=monotonic,numerals=greek,koppa=modern}
% Register alias options
\SetLanguageAliasValues{greek}{variant}{monotonic,mono}
\SetLanguageAliasValues{greek}{variant}{polytonic,poly}

\def\monogreekcaptions{%
   \def\refname{Αναφορές}%
   \def\abstractname{Περίληψη}%
   \def\bibname{Βιβλιογραφία}%
   \def\prefacename{Πρόλογος}%
   \def\chaptername{Κεφάλαιο}%
   \def\appendixname{Παράρτημα}%
   \def\contentsname{Περιεχόμενα}%
   \def\listfigurename{Κατάλογος σχημάτων}%
   \def\listtablename{Κατάλογος πινάκων}%
   \def\indexname{Ευρετήριο}%
   \def\figurename{Σχήμα}%
   \def\tablename{Πίνακας}%
   \def\partname{Μέρος}%
   \def\pagename{Σελίδα}%
   \def\seename{βλέπε}%
   \def\alsoname{βλέπε επίσης}%
   \def\enclname{Συνημμένα}%
   \def\ccname{Κοινοποίηση}%
   \def\headtoname{Προς}%
   \def\proofname{Απόδειξη}%
   \def\glossaryname{Γλωσσάρι}}%

\def\datemonogreek{%   
   \def\today{\number\day\space%
      \greek@month%
      \space\number\year}%
   \def\greektoday{\greeknumber\day\space%
      \greek@month%
      \space\greeknumber\year}%
   \def\Greektoday{\Greeknumber\day\space%
      \greek@month%
      \space\Greeknumber\year}%
   \def\greek@month{\ifcase\month\or%
      Ιανουαρίου\or
      Φεβρουαρίου\or
      Μαρτίου\or
      Απριλίου\or
      Μαΐου\or
      Ιουνίου\or
      Ιουλίου\or
      Αυγούστου\or
      Σεπτεμβρίου\or
      Οκτωβρίου\or
      Νοεμβρίου\or
      Δεκεμβρίου\fi}}%

\def\polygreekcaptions{%
   \def\refname{Ἀναφορές}%
   \def\abstractname{Περίληψη}%
   \def\bibname{Βιβλιογραφία}%
   \def\prefacename{Πρόλογος}%
   \def\chaptername{Κεφάλαιο}%
   \def\appendixname{Παράρτημα}%
   \def\contentsname{Περιεχόμενα}%
   \def\listfigurename{Κατάλογος σχημάτων}%
   \def\listtablename{Κατάλογος πινάκων}%
   \def\indexname{Εὑρετήριο}%
   \def\figurename{Σχῆμα}%
   \def\tablename{Πίνακας}%
   \def\partname{Μέρος}%
   \def\pagename{Σελίδα}%
   \def\seename{βλέπε}%
   \def\alsoname{βλέπε ἐπίσης}%
   \def\enclname{Συνημμένα}%
   \def\ccname{Κοινοποίηση}%
   \def\headtoname{Πρὸς}%
   \def\proofname{Ἀπόδειξη}}%

\def\datepolygreek{%   
   \def\today{\number\day\space%
      \greek@month%
      \space\number\year}%
   \def\greektoday{\greeknumber\day\space%
      \greek@month%
      \space\greeknumber\year}%
   \def\Greektoday{\Greeknumber\day\space%
      \greek@month%
      \space\Greeknumber\year}%
   \def\greek@month{\ifcase\month\or%
      Ἰανουαρίου\or
      Φεβρουαρίου\or
      Μαρτίου\or
      Ἀπριλίου\or
      Μαΐου\or
      Ἰουνίου\or
      Ἰουλίου\or
      Αὐγούστου\or
      Σεπτεμβρίου\or
      Ὀκτωβρίου\or
      Νοεμβρίου\or
      Δεκεμβρίου\fi}}%

% this is copied verbatim from xgreek.sty:      
\def\ancientgreekcaptions{%
  \def\prefacename{Προοίμιον}%
  \def\refname{Αναφοραί}%
  \def\abstractname{Περίληψις}%
  \def\bibname{Βιβλιογραφία}%
  \def\chaptername{Κεφάλαιον}%
  \def\appendixname{Παράρτημα}%
  \def\contentsname{Περιεχόμενα}%
  \def\listfigurename{Κατάλογος σχημάτων}%
  \def\listtablename{Κατάλογος πινάκων}%
  \def\indexname{Εὑρετήριον}%
  \def\figurename{Σχήμα}%
  \def\tablename{Πίναξ}%
  \def\partname{Μέρος}%
  \def\enclname{Συνημμένως}%
  \def\ccname{Κοινοποίησις}%
  \def\headtoname{Πρὸς}%
  \def\pagename{Σελὶς}%
  \def\seename{ὅρα}%
  \def\alsoname{ὅρα ὡσαύτως}%
  \def\proofname{Ἀπόδειξις}%
  \def\glossaryname{Γλωσσάριον}%
  \def\refname{Ἀναφοραὶ}%
  \def\indexname{Εὑρετήριο}%
  \def\figurename{Σχῆμα}%
  \def\headtoname{Πρὸς}}%

\def\dateancientgreek{%
  \def\today{\number\day\space%
      \greek@month%
      \space\number\year}%
   \def\greektoday{\greeknumber\day\space%
      \greek@month%
      \space\greeknumber\year}%
   \def\Greektoday{\Greeknumber\day\space%
      \greek@month%
      \space\Greeknumber\year}%
   \def\greek@month{\ifcase\month\or%
      Ἰανουαρίου\or
      Φεβρουαρίου\or
      Μαρτίου\or
      Ἀπριλίου\or
      Μαΐου\or
      Ἰουνίου\or
      Ἰουλίου\or
      Αὐγούστου\or
      Σεπτεμβρίου\or
      Ὀκτωβρίου\or
      Νοεμβρίου\or
      Δεκεμβρίου\fi}}

% the code for alphabetic numbers and attic numerals 
\newrobustcmd\anw@print{}
\newrobustcmd\anw@false{%
  \renewrobustcmd\anw@print{}}
\newrobustcmd\anw@true{%
   \renewrobustcmd\anw@print{ʹ}}
\anw@true

% Use \providecommand here as the ldf file might
% be reloaded via politunikogreek.
\providecommand{\greeknumerals}[2]{\greeknumber{#2}}
\providecommand{\Greeknumerals}[2]{\Greeknumber{#2}}

% Placeholder for customizable numbers 6 and 90
\providecommand*{\greeknumeralsix}{ϛ}
\providecommand*{\greeknumeralSix}{Ϛ}
\providecommand*{\greeknumeralninety}{ϟ}
\providecommand*{\greeknumeralNinety}{\MakeUppercase{ϟ}}
\if@greek@archaickoppa
  \renewcommand*{\greeknumeralninety}{ϙ}
  \renewcommand*{\greeknumeralNinety}{Ϙ}
\fi

\protected\def\greeknumber#1{\expandafter\@greeknumber\expandafter{\number#1}{}}
\def\@greeknumber#1{%
  \ifnum#1<\@ne\space\gr@ill@value{#1}%
  \else
    \ifnum#1<10\expandafter\gr@num@i\number#1%
    \else
      \ifnum#1<100\expandafter\gr@num@ii\number#1%
      \else
        \ifnum#1<\@m\expandafter\gr@num@iii\number#1%
        \else
          \ifnum#1<\@M\expandafter\gr@num@iv\number#1%
          \else
            \ifnum#1<100000\expandafter\gr@num@v\number#1%
            \else
              \ifnum#1<1000000\expandafter\gr@num@vi\number#1%
              \else
                \space\gr@ill@value{#1}%
              \fi
            \fi
          \fi
        \fi
      \fi
    \fi
  \fi
}
\protected\def\Greeknumber#1{\expandafter\@Greeknumber\expandafter{\number#1}{}}
\def\@Greeknumber#1{%
  \ifnum#1<\@ne\space\gr@ill@value{#1}%
  \else
    \ifnum#1<10\expandafter\gr@Num@i\number#1%
    \else
      \ifnum#1<100\expandafter\gr@Num@ii\number#1%
      \else
        \ifnum#1<\@m\expandafter\gr@Num@iii\number#1%
        \else
          \ifnum#1<\@M\expandafter\gr@Num@iv\number#1%
          \else
            \ifnum#1<100000\expandafter\gr@Num@v\number#1%
            \else
              \ifnum#1<1000000\expandafter\gr@Num@vi\number#1%
              \else
                \space\gr@ill@value{#1}%
              \fi
            \fi
          \fi
        \fi
      \fi
    \fi
  \fi
}
\let\greeknumeral=\greeknumber
\let\Greeknumeral=\Greeknumber
\def\gr@num@i#1{%
  \ifcase#1\or α\or β\or γ\or δ\or ε\or\greeknumeralsix\or ζ\or η\or θ\fi
  \ifnum#1=\z@\else\anw@true\fi\anw@print}
\def\gr@num@ii#1{%
  \ifcase#1\or ι\or κ\or λ\or μ\or ν\or ξ\or ο\or π\or\greeknumeralninety\fi
  \ifnum#1=\z@\else\anw@true\fi\gr@num@i}
\def\gr@num@iii#1{%
  \ifcase#1\or ρ\or σ\or τ\or υ\or φ\or χ\or ψ\or ω\or ϡ\fi
  \ifnum#1=\z@\anw@false\else\anw@true\fi\gr@num@ii}
\def\gr@num@iv#1{%
  \ifnum#1=\z@\else ͵\fi
  \ifcase#1\or α\or β\or γ\or δ\or ε\or Ϛ\or ζ\or η\or θ\fi
  \gr@num@iii}
\def\gr@num@v#1{%
  \ifnum#1=\z@\else ͵\fi
  \ifcase#1\or ι\or κ\or λ\or μ\or ν\or ξ\or ο\or π\or ϟ\fi
  \gr@num@iv}
\def\gr@num@vi#1{%
  ͵\ifcase#1\or ρ\or σ\or τ\or υ\or φ\or χ\or ψ\or ω\or ϡ\fi
  \gr@num@v}
\def\gr@Num@i#1{%
  \ifcase#1 \or Α\or Β\or Γ\or Δ\or Ε\or\greeknumeralSix\or Ζ\or Η\or θ\fi
  \ifnum#1=\z@\else\anw@true\fi\anw@print}
\def\gr@Num@ii#1{%
  \ifcase#1 \or Ι\or Κ\or Λ\or Μ\or Ν\or Ξ\or Ο\or Π\or\greeknumeralNinety\fi
  \ifnum#1=\z@\else\anw@true\fi\gr@Num@i}
\def\gr@Num@iii#1{%
  \ifcase#1 \or Ρ\or Σ\or Τ\or Υ\or Φ\or Χ\or Ψ\or Ω\or \MakeUppercase{ϡ}\fi
  \ifnum#1=\z@\anw@false\else\anw@true\fi\gr@Num@ii}
\def\gr@Num@iv#1{%
  \ifnum#1=\z@\else ͵\fi
  \ifcase#1 \or Α\or Β\or Γ\or Δ\or Ε\or \MakeUppercase{Ϛ}\or Ζ\or Η\or θ\fi
  \gr@Num@iii}
\def\gr@Num@v#1{%
  \ifnum#1=\z@\else ͵\fi
  \ifcase#1 \or Ι\or Κ\or Λ\or Μ\or Ν\or Ξ\or Ο\or Π\or \MakeUppercase{ϟ}\fi
\gr@Num@iv}
  \def\gr@Num@vi#1{%
͵ \ifcase#1 \or Ρ\or Σ\or Τ\or Υ\or Φ\or Χ\or Ψ\or Ω\or \MakeUppercase{ϡ}\fi
  \gr@Num@v}
\def\gr@ill@value#1{\xpg@warning{Illegal value (#1) for Greek numeral}[$#1$]}

%%%% Attic numerals (no longer optional)
\newcount\@attic@num
\DeclareRobustCommand*{\@@atticnum}[1]{%
        \@attic@num#1\relax
        \ifnum\@attic@num<\@ne%
          \space%
          \xpg@warning{Illegal value (\the\@attic@num) for acrophonic Attic numeral}%
        \else\ifnum\@attic@num>249999%
          \space%
	  \xpg@warning{Illegal value (\the\@attic@num) for acrophonic Attic numeral}%
        \else
            \@whilenum\@attic@num>49999\do{%
               \char"10147\advance\@attic@num-50000}%
            \@whilenum\@attic@num>9999\do{%
               M\advance\@attic@num-\@M}%
            \ifnum\@attic@num>4999%
               \char"10146\advance\@attic@num-5000%
            \fi\relax
            \@whilenum\@attic@num>999\do{%
               Χ\advance\@attic@num-\@m}%
            \ifnum\@attic@num>499%
               \char"10145\advance\@attic@num-500%
            \fi\relax
            \@whilenum\@attic@num>99\do{%
               Η\advance\@attic@num-100}%
            \ifnum\@attic@num>49%
               \char"10144\advance\@attic@num-50%
            \fi\relax
            \@whilenum\@attic@num>9\do{%
               Δ\advance\@attic@num by-10}%
            \@whilenum\@attic@num>4\do{%
               Π\advance\@attic@num-5}%
            \ifcase\@attic@num\or Ι\or ΙΙ\or ΙΙΙ\or ΙΙΙΙ\fi%
   \fi\fi}
\def\@atticnum#1{%
     \expandafter\@@atticnum\expandafter{\the#1}}
\def\atticnumeral#1{%
     \@attic@num#1\relax
     \@atticnum{\@attic@num}}
\let\atticnum=\atticnumeral

\def\greek@numbers{%
   \if@greek@numerals
      \def\greek@alph##1{\expandafter\greeknumeral\expandafter{\the##1}}%
      \def\greek@Alph##1{\expandafter\Greeknumeral\expandafter{\the##1}}%
      \let\@alph\greek@alph%
      \let\@Alph\greek@Alph%
   \fi}

\def\nogreek@numbers{%
  \let\@alph\latin@alph%
  \let\@Alph\latin@Alph%
  \let\greek@alph\@undefined%
  \let\greek@Alph\@undefined%
  }

\endinput