%\iffalse
%<*package>
%% \CharacterTable
%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%%   Digits        \0\1\2\3\4\5\6\7\8\9
%%   Exclamation   \!     Double quote  \"     Hash (number) \#
%%   Dollar        \$     Percent       \%     Ampersand     \&
%%   Acute accent  \'     Left paren    \(     Right paren   \)
%%   Asterisk      \*     Plus          \+     Comma         \,
%%   Minus         \-     Point         \.     Solidus       \/
%%   Colon         \:     Semicolon     \;     Less than     \<
%%   Equals        \=     Greater than  \>     Question mark \?
%%   Commercial at \@     Left bracket  \[     Backslash     \\
%%   Right bracket \]     Circumflex    \^     Underscore    \_
%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%%   Right brace   \}     Tilde         \~}
%</package>
%\fi
% \iffalse
% Doc-Source file to use with LaTeX2e
% Copyright (C) 2018 Nicola Talbot, all rights reserved.
% (New maintainer add relevant lines here.)
% \fi
% \iffalse
%<*driver>
\documentclass{ltxdoc}

\usepackage{alltt}
\usepackage{graphicx}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[colorlinks,
            bookmarks,
            hyperindex=false,
            pdfauthor={Nicola L.C. Talbot},
            pdftitle={datetime2.sty Irish Module}]{hyperref}


\CheckSum{552}

\renewcommand*{\usage}[1]{\hyperpage{#1}}
\renewcommand*{\main}[1]{\hyperpage{#1}}
\IndexPrologue{\section*{\indexname}\markboth{\indexname}{\indexname}}
\setcounter{IndexColumns}{2}

\newcommand*{\sty}[1]{\textsf{#1}}
\newcommand*{\opt}[1]{\texttt{#1}\index{#1=\texttt{#1}|main}}

\RecordChanges
\PageIndex
\CodelineNumbered

\begin{document}
\DocInput{datetime2-irish.dtx}
\end{document}
%</driver>
%\fi
%
%\MakeShortVerb{"}
%
%\title{Irish Module for datetime2 Package}
%\author{Nicola L. C. Talbot (inactive)}
%\date{2018-04-24 (v1.1)}
%\maketitle
%
%This module is currently unmaintained and may be subject to change.
%If you want to volunteer to take over maintanance, contact me at
%\url{http://www.dickimaw-books.com/contact.html}
%
%\begin{abstract}
%This is the Irish language module for the \sty{datetime2}
%package. If you want to use the settings in this module you must
%install it in addition to installing \sty{datetime2}. If you use
%\sty{babel} or \sty{polyglossia}, you will need this module to
%prevent them from redefining \cs{today}. The \sty{datetime2}
% \opt{useregional} setting must be set to "text" or "numeric"
% for the language styles to be set.
% Alternatively, you can set the style in the document using
% \cs{DTMsetstyle}, but this may be changed by \cs{date}\meta{language}
% depending on the value of the \opt{useregional} setting.
%\end{abstract}
%
%I've copied the date style from \texttt{babel-irish}'s \cs{today}.
%
%I don't know if these settings are correct as I can't speak Gaelic.
%In particular, I don't know if the "irish" time style is
%correct. Currently this just uses the "default" time style. Please
%be aware that this may change. Whoever takes over maintanance
%of this module may can change it as appropriate.
%
%The new maintainer should add the line:
%\begin{verbatim}
% The Current Maintainer of this work is Name.
%\end{verbatim}
%to the preamble part in \texttt{datetime2-irish.ins} where Name
%is the name of the maintainer(s) and replace
%the `inactive' status to `maintained'.
%
%Regional styles are named in the form \texttt{\meta{language
%code}-\meta{country code}} (or \texttt{\meta{language
%code}-\meta{country code}-numeric}) where \meta{language code} is
%the ISO 639-1 language code (\texttt{ga} in the case of Irish
%Gaelic) and \meta{country code} is the ISO 3166-1 country code
%(\texttt{IE} for the Republic of Ireland and \texttt{GB} for the
%United Kingdom of Great Britain and Northern Ireland). You will
%need \sty{tracklang} v1.2 for the "ga-IE" and "ga-GB" options.
%The only difference between them is the Summer time zone mappings
%with IST (Irish Summer Time) for "ga-IE" and BST (British Summer
%Time) for "ga-GB". The regionless "irish" style uses WET (Western
%European Time) and WEST (Western European Summer Time).
%
%\StopEventually{%
%\clearpage
%\phantomsection
%\addcontentsline{toc}{section}{Change History}%
%\PrintChanges
%\addcontentsline{toc}{section}{\indexname}%
%\PrintIndex}
%\section{The Code}
%\iffalse
%    \begin{macrocode}
%<*datetime2-irish-utf8.ldf>
%    \end{macrocode}
%\fi
%\subsection{UTF-8}
%This file contains the settings that use UTF-8 characters. This
%file is loaded if XeLaTeX or LuaLaTeX are used. Please make sure
%your text editor is set to UTF-8 if you want to view this code.
%\changes{1.0}{2015-03-26}{Initial release}
% Identify module
%    \begin{macrocode}
\ProvidesDateTimeModule{irish-utf8}[2018/04/24 v1.1]
%    \end{macrocode}
%\begin{macro}{\DTMirishordinal}
% I don't know if this is correct, but it's provided in case 
% a suffix is required.
%    \begin{macrocode}
\newcommand*{\DTMirishordinal}[1]{%
  \number#1 % space intended
}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMirishmonthname}
% Irish month names.
%    \begin{macrocode}
\newcommand*{\DTMirishmonthname}[1]{%
  \ifcase#1
  \or
  Eanáir%
  \or
  Feabhra%
  \or
  Márta%
  \or
  Aibreán%
  \or
  Bealtaine%
  \or
  Meitheamh%
  \or
  Iúil%
  \or
  Lúnasa%
  \or
  Meán Fómhair%
  \or
  Deireadh Fómhair%
  \or
  Mí na Samhna%
  \or
  Mí na Nollag%
  \fi
}
%    \end{macrocode}
%\end{macro}
%
%If abbreviated dates are supported, short month names should be
%likewise provided.
%
%\iffalse
%    \begin{macrocode}
%</datetime2-irish-utf8.ldf>
%    \end{macrocode}
%\fi
%\iffalse
%    \begin{macrocode}
%<*datetime2-irish-ascii.ldf>
%    \end{macrocode}
%\fi
%\subsection{ASCII}
%This file contains the settings that use \LaTeX\ commands for
%non-ASCII characters. This should be input if neither XeLaTeX nor
%LuaLaTeX are used. Even if the user has loaded \sty{inputenc} with
%"utf8", this file should still be used not the
%\texttt{datetime2-irish-utf8.ldf} file as the non-ASCII
%characters are made active in that situation and would need
%protecting against expansion.
%\changes{1.0}{2015-03-26}{Initial release}
% Identify module
%    \begin{macrocode}
\ProvidesDateTimeModule{irish-ascii}[2018/04/24 v1.1]
%    \end{macrocode}
%\begin{macro}{\DTMirishordinal}
% I don't know if this is correct, but it's provided in case 
% a suffix is required.
%    \begin{macrocode}
\newcommand*{\DTMirishordinal}[1]{%
  \number#1 % space intended
}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMirishmonthname}
% Irish month names.
%    \begin{macrocode}
\newcommand*{\DTMirishmonthname}[1]{%
  \ifcase#1
  \or
  Ean\protect\'air%
  \or
  Feabhra%
  \or
  M\protect\'arta%
  \or
  Aibre\protect\'an%
  \or
  Bealtaine%
  \or
  Meitheamh%
  \or
  I\protect\'uil%
  \or
  L\protect\'unasa%
  \or
  Me\protect\'an F\protect\'omhair%
  \or
  Deireadh F\protect\'omhair%
  \or
  M\protect\'i na Samhna%
  \or
  M\protect\'i na Nollag%
  \fi
}
%    \end{macrocode}
%\end{macro}
%
%If abbreviated dates are supported, short month names should be
%likewise provided.
%
%\iffalse
%    \begin{macrocode}
%</datetime2-irish-ascii.ldf>
%    \end{macrocode}
%\fi
%
%\subsection{Irish (no region) Module (\texttt{datetime2-irish.ldf})}
%\changes{1.0}{2015-03-26}{Initial release}
%
%\iffalse
%    \begin{macrocode}
%<*datetime2-irish.ldf>
%    \end{macrocode}
%\fi
%
% Identify Module
%    \begin{macrocode}
\ProvidesDateTimeModule{irish}[2018/04/24 v1.1]
%    \end{macrocode}
% Need to find out if XeTeX or LuaTeX are being used.
%    \begin{macrocode}
\RequirePackage{ifxetex,ifluatex}
%    \end{macrocode}
% XeTeX and LuaTeX natively support UTF-8, so load
% \texttt{irish-utf8} if either of those engines are used
% otherwise load \texttt{irish-ascii}.
%    \begin{macrocode}
\ifxetex
 \RequireDateTimeModule{irish-utf8}
\else
 \ifluatex
   \RequireDateTimeModule{irish-utf8}
 \else
   \RequireDateTimeModule{irish-ascii}
 \fi
\fi
%    \end{macrocode}
%
% Define the \texttt{irish} style.
% The time style is the same as the "default" style
% provided by \sty{datetime2}. This may need correcting. For
% example, if a 12 hour style similar to the "englishampm" (from the
% "english-base" module) is required. 
%
% Allow the user a way of configuring the "irish" and
% "irish-numeric" styles. This doesn't use the package wide
% separators such as
% \cs{dtm@datetimesep} in case other date formats are also required.
%\begin{macro}{\DTMirishdaymonthsep}
% The separator between the day and month for the text format.
%    \begin{macrocode}
\newcommand*{\DTMirishdaymonthsep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMirishmonthyearsep}
% The separator between the month and year for the text format.
%    \begin{macrocode}
\newcommand*{\DTMirishmonthyearsep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMirishdatetimesep}
% The separator between the date and time blocks in the full format
% (either text or numeric).
%    \begin{macrocode}
\newcommand*{\DTMirishdatetimesep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMirishtimezonesep}
% The separator between the time and zone blocks in the full format
% (either text or numeric).
%    \begin{macrocode}
\newcommand*{\DTMirishtimezonesep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMirishdatesep}
% The separator for the numeric date format.
%    \begin{macrocode}
\newcommand*{\DTMirishdatesep}{/}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMirishtimesep}
% The separator for the numeric time format.
%    \begin{macrocode}
\newcommand*{\DTMirishtimesep}{:}
%    \end{macrocode}
%\end{macro}
%
%Provide keys that can be used in \cs{DTMlangsetup} to set these
%separators.
%    \begin{macrocode}
\DTMdefkey{irish}{daymonthsep}{\renewcommand*{\DTMirishdaymonthsep}{#1}}
\DTMdefkey{irish}{monthyearsep}{\renewcommand*{\DTMirishmonthyearsep}{#1}}
\DTMdefkey{irish}{datetimesep}{\renewcommand*{\DTMirishdatetimesep}{#1}}
\DTMdefkey{irish}{timezonesep}{\renewcommand*{\DTMirishtimezonesep}{#1}}
\DTMdefkey{irish}{datesep}{\renewcommand*{\DTMirishdatesep}{#1}}
\DTMdefkey{irish}{timesep}{\renewcommand*{\DTMirishtimesep}{#1}}
%    \end{macrocode}
%
% TODO: provide a boolean key to switch between full and abbreviated
% formats if appropriate. (I don't know how the date should be
% abbreviated.)
%
% Define a boolean key that determines if the time zone mappings
% should be used.
%    \begin{macrocode}
\DTMdefboolkey{irish}{mapzone}[true]{}
%    \end{macrocode}
% The default is to use mappings.
%    \begin{macrocode}
\DTMsetbool{irish}{mapzone}{true}
%    \end{macrocode}
%
% Define a boolean key that determines if the day of month should be
% displayed.
%    \begin{macrocode}
\DTMdefboolkey{irish}{showdayofmonth}[true]{}
%    \end{macrocode}
% The default is to show the day of month.
%    \begin{macrocode}
\DTMsetbool{irish}{showdayofmonth}{true}
%    \end{macrocode}
%
% Define a boolean key that determines if the year should be
% displayed.
%    \begin{macrocode}
\DTMdefboolkey{irish}{showyear}[true]{}
%    \end{macrocode}
% The default is to show the year.
%    \begin{macrocode}
\DTMsetbool{irish}{showyear}{true}
%    \end{macrocode}
%
% Define the "irish" style. (TODO: implement day of week?)
%    \begin{macrocode}
\DTMnewstyle
 {irish}% label
 {% date style
   \renewcommand*\DTMdisplaydate[4]{%
     \DTMifbool{irish}{showdayofmonth}
     {\DTMirishordinal{##3}\DTMirishdaymonthsep}%
     {}%
     \DTMirishmonthname{##2}%
     \DTMifbool{irish}{showyear}%
     {%
       \DTMirishmonthyearsep
       \number##1 % space intended
     }%
     {}%
   }%
   \renewcommand*{\DTMDisplaydate}{\DTMdisplaydate}%
 }%
 {% time style (use default)
   \DTMsettimestyle{default}%
 }%
 {% zone style
   \DTMresetzones
   \DTMirishzonemaps
   \renewcommand*{\DTMdisplayzone}[2]{%
     \DTMifbool{irish}{mapzone}%
     {\DTMusezonemapordefault{##1}{##2}}%
     {%
       \ifnum##1<0\else+\fi\DTMtwodigits{##1}%
       \ifDTMshowzoneminutes\DTMirishtimesep\DTMtwodigits{##2}\fi
     }%
   }%
 }%
 {% full style
   \renewcommand*{\DTMdisplay}[9]{%
    \ifDTMshowdate
     \DTMdisplaydate{##1}{##2}{##3}{##4}%
     \DTMirishdatetimesep
    \fi
    \DTMdisplaytime{##5}{##6}{##7}%
    \ifDTMshowzone
     \DTMirishtimezonesep
     \DTMdisplayzone{##8}{##9}%
    \fi
   }%
   \renewcommand*{\DTMDisplay}{\DTMdisplay}%
 }%
%    \end{macrocode}
%
% Define numeric style.
%    \begin{macrocode}
\DTMnewstyle
 {irish-numeric}% label
 {% date style
    \renewcommand*\DTMdisplaydate[4]{%
      \DTMifbool{irish}{showdayofmonth}%
      {%
        \number##3 % space intended
        \DTMirishdatesep
      }%
      {}%
      \number##2 % space intended
      \DTMifbool{irish}{showyear}%
      {%
        \DTMirishdatesep
        \number##1 % space intended
      }%
      {}%
    }%
    \renewcommand*{\DTMDisplaydate}[4]{\DTMdisplaydate{##1}{##2}{##3}{##4}}%
 }%
 {% time style
    \renewcommand*\DTMdisplaytime[3]{%
      \number##1
      \DTMirishtimesep\DTMtwodigits{##2}%
      \ifDTMshowseconds\DTMirishtimesep\DTMtwodigits{##3}\fi
    }%
 }%
 {% zone style
   \DTMresetzones
   \DTMirishzonemaps
   \renewcommand*{\DTMdisplayzone}[2]{%
     \DTMifbool{irish}{mapzone}%
     {\DTMusezonemapordefault{##1}{##2}}%
     {%
       \ifnum##1<0\else+\fi\DTMtwodigits{##1}%
       \ifDTMshowzoneminutes\DTMirishtimesep\DTMtwodigits{##2}\fi
     }%
   }%
 }%
 {% full style
   \renewcommand*{\DTMdisplay}[9]{%
    \ifDTMshowdate
     \DTMdisplaydate{##1}{##2}{##3}{##4}%
     \DTMirishdatetimesep
    \fi
    \DTMdisplaytime{##5}{##6}{##7}%
    \ifDTMshowzone
     \DTMirishtimezonesep
     \DTMdisplayzone{##8}{##9}%
    \fi
   }%
   \renewcommand*{\DTMDisplay}{\DTMdisplay}%
 }
%    \end{macrocode}
%
%\begin{macro}{\DTMirishzonemaps}
% The time zone mappings are set through this command, which can be
% redefined if extra mappings are required or mappings need to be
% removed. Since no region is provided, this style uses WET/WEST
% time zone mappings.
%    \begin{macrocode}
\newcommand*{\DTMirishzonemaps}{%
  \DTMdefzonemap{00}{00}{WET}%
  \DTMdefzonemap{01}{00}{WEST}%
}
%    \end{macrocode}
%\end{macro}

% Switch style according to the \opt{useregional} setting.
%    \begin{macrocode}
\DTMifcaseregional
{}% do nothing
{\DTMsetstyle{irish}}
{\DTMsetstyle{irish-numeric}}
%    \end{macrocode}
%
% Redefine \cs{dateirish} (or \cs{date}\meta{dialect}) to prevent
% \sty{babel} from resetting \cs{today}. (For this to work,
% \sty{babel} must already have been loaded if it's required.)
%\changes{1.1}{2018-04-24}{removed spurious space}
%    \begin{macrocode}
\ifcsundef{date\CurrentTrackedDialect}
{%
  \ifundef\dateirish
  {% do nothing
  }%
  {%
    \def\dateirish{%
      \DTMifcaseregional
      {}% do nothing
      {\DTMsetstyle{irish}}%
      {\DTMsetstyle{irish-numeric}}%
    }%
  }%
}%
{%
  \csdef{date\CurrentTrackedDialect}{%
    \DTMifcaseregional
    {}% do nothing
    {\DTMsetstyle{irish}}%
    {\DTMsetstyle{irish-numeric}}%
  }%
}%
%    \end{macrocode}
%\iffalse
%    \begin{macrocode}
%</datetime2-irish.ldf>
%    \end{macrocode}
%\fi
%\subsection{Irish (Republic of Ireland) Module (\texttt{datetime2-ga-IE.ldf})}
%\changes{1.0}{2015-03-26}{Initial release}
% As "irish" but uses different time zone mappings.
%\iffalse
%    \begin{macrocode}
%<*datetime2-ga-IE.ldf>
%    \end{macrocode}
%\fi
%
% Identify Module
%    \begin{macrocode}
\ProvidesDateTimeModule{ga-IE}[2018/04/24 v1.1]
%    \end{macrocode}
% Need to find out if XeTeX or LuaTeX are being used.
%    \begin{macrocode}
\RequirePackage{ifxetex,ifluatex}
%    \end{macrocode}
% XeTeX and LuaTeX natively support UTF-8, so load
% \texttt{irish-utf8} if either of those engines are used
% otherwise load \texttt{irish-ascii}.
%    \begin{macrocode}
\ifxetex
 \RequireDateTimeModule{irish-utf8}
\else
 \ifluatex
   \RequireDateTimeModule{irish-utf8}
 \else
   \RequireDateTimeModule{irish-ascii}
 \fi
\fi
%    \end{macrocode}
%
% Define the \texttt{ga-IE} style.
% The time style is the same as the "default" style
% provided by \sty{datetime2}. This may need correcting. For
% example, if a 12 hour style similar to the "englishampm" (from the
% "english-base" module) is required. 
%
% Allow the user a way of configuring the "ga-IE" and
% "ga-IE-numeric" styles. This doesn't use the package wide
% separators such as
% \cs{dtm@datetimesep} in case other date formats are also required.
%\begin{macro}{\DTMgaIEdaymonthsep}
% The separator between the day and month for the text format.
%    \begin{macrocode}
\newcommand*{\DTMgaIEdaymonthsep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaIEmonthyearsep}
% The separator between the month and year for the text format.
%    \begin{macrocode}
\newcommand*{\DTMgaIEmonthyearsep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaIEdatetimesep}
% The separator between the date and time blocks in the full format
% (either text or numeric).
%    \begin{macrocode}
\newcommand*{\DTMgaIEdatetimesep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaIEtimezonesep}
% The separator between the time and zone blocks in the full format
% (either text or numeric).
%    \begin{macrocode}
\newcommand*{\DTMgaIEtimezonesep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaIEdatesep}
% The separator for the numeric date format.
%    \begin{macrocode}
\newcommand*{\DTMgaIEdatesep}{/}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaIEtimesep}
% The separator for the numeric time format.
%    \begin{macrocode}
\newcommand*{\DTMgaIEtimesep}{:}
%    \end{macrocode}
%\end{macro}
%
%Provide keys that can be used in \cs{DTMlangsetup} to set these
%separators.
%    \begin{macrocode}
\DTMdefkey{ga-IE}{daymonthsep}{\renewcommand*{\DTMgaIEdaymonthsep}{#1}}
\DTMdefkey{ga-IE}{monthyearsep}{\renewcommand*{\DTMgaIEmonthyearsep}{#1}}
\DTMdefkey{ga-IE}{datetimesep}{\renewcommand*{\DTMgaIEdatetimesep}{#1}}
\DTMdefkey{ga-IE}{timezonesep}{\renewcommand*{\DTMgaIEtimezonesep}{#1}}
\DTMdefkey{ga-IE}{datesep}{\renewcommand*{\DTMgaIEdatesep}{#1}}
\DTMdefkey{ga-IE}{timesep}{\renewcommand*{\DTMgaIEtimesep}{#1}}
%    \end{macrocode}
%
% TODO: provide a boolean key to switch between full and abbreviated
% formats if appropriate. (I don't know how the date should be
% abbreviated.)
%
% Define a boolean key that determines if the time zone mappings
% should be used.
%    \begin{macrocode}
\DTMdefboolkey{ga-IE}{mapzone}[true]{}
%    \end{macrocode}
% The default is to use mappings.
%    \begin{macrocode}
\DTMsetbool{ga-IE}{mapzone}{true}
%    \end{macrocode}
%
% Define a boolean key that determines if the day of month should be
% displayed.
%    \begin{macrocode}
\DTMdefboolkey{ga-IE}{showdayofmonth}[true]{}
%    \end{macrocode}
% The default is to show the day of month.
%    \begin{macrocode}
\DTMsetbool{ga-IE}{showdayofmonth}{true}
%    \end{macrocode}
%
% Define a boolean key that determines if the year should be
% displayed.
%    \begin{macrocode}
\DTMdefboolkey{ga-IE}{showyear}[true]{}
%    \end{macrocode}
% The default is to show the year.
%    \begin{macrocode}
\DTMsetbool{ga-IE}{showyear}{true}
%    \end{macrocode}
%
% Define the "ga-IE" style. (TODO: implement day of week?)
%    \begin{macrocode}
\DTMnewstyle
 {ga-IE}% label
 {% date style
   \renewcommand*\DTMdisplaydate[4]{%
     \DTMifbool{ga-IE}{showdayofmonth}
     {\DTMirishordinal{##3}\DTMgaIEdaymonthsep}%
     {}%
     \DTMirishmonthname{##2}%
     \DTMifbool{ga-IE}{showyear}%
     {%
       \DTMgaIEmonthyearsep
       \number##1 % space intended
     }%
     {}%
   }%
   \renewcommand*{\DTMDisplaydate}{\DTMdisplaydate}%
 }%
 {% time style (use default)
   \DTMsettimestyle{default}%
 }%
 {% zone style
   \DTMresetzones
   \DTMgaIEzonemaps
   \renewcommand*{\DTMdisplayzone}[2]{%
     \DTMifbool{ga-IE}{mapzone}%
     {\DTMusezonemapordefault{##1}{##2}}%
     {%
       \ifnum##1<0\else+\fi\DTMtwodigits{##1}%
       \ifDTMshowzoneminutes\DTMgaIEtimesep\DTMtwodigits{##2}\fi
     }%
   }%
 }%
 {% full style
   \renewcommand*{\DTMdisplay}[9]{%
    \ifDTMshowdate
     \DTMdisplaydate{##1}{##2}{##3}{##4}%
     \DTMgaIEdatetimesep
    \fi
    \DTMdisplaytime{##5}{##6}{##7}%
    \ifDTMshowzone
     \DTMgaIEtimezonesep
     \DTMdisplayzone{##8}{##9}%
    \fi
   }%
   \renewcommand*{\DTMDisplay}{\DTMdisplay}%
 }%
%    \end{macrocode}
%
% Define numeric style.
%    \begin{macrocode}
\DTMnewstyle
 {ga-IE-numeric}% label
 {% date style
    \renewcommand*\DTMdisplaydate[4]{%
      \DTMifbool{ga-IE}{showdayofmonth}%
      {%
        \number##3 % space intended
        \DTMgaIEdatesep
      }%
      {}%
      \number##2 % space intended
      \DTMifbool{ga-IE}{showyear}%
      {%
        \DTMgaIEdatesep
        \number##1 % space intended
      }%
      {}%
    }%
    \renewcommand*{\DTMDisplaydate}[4]{\DTMdisplaydate{##1}{##2}{##3}{##4}}%
 }%
 {% time style
    \renewcommand*\DTMdisplaytime[3]{%
      \number##1
      \DTMgaIEtimesep\DTMtwodigits{##2}%
      \ifDTMshowseconds\DTMgaIEtimesep\DTMtwodigits{##3}\fi
    }%
 }%
 {% zone style
   \DTMresetzones
   \DTMgaIEzonemaps
   \renewcommand*{\DTMdisplayzone}[2]{%
     \DTMifbool{ga-IE}{mapzone}%
     {\DTMusezonemapordefault{##1}{##2}}%
     {%
       \ifnum##1<0\else+\fi\DTMtwodigits{##1}%
       \ifDTMshowzoneminutes\DTMgaIEtimesep\DTMtwodigits{##2}\fi
     }%
   }%
 }%
 {% full style
   \renewcommand*{\DTMdisplay}[9]{%
    \ifDTMshowdate
     \DTMdisplaydate{##1}{##2}{##3}{##4}%
     \DTMgaIEdatetimesep
    \fi
    \DTMdisplaytime{##5}{##6}{##7}%
    \ifDTMshowzone
     \DTMgaIEtimezonesep
     \DTMdisplayzone{##8}{##9}%
    \fi
   }%
   \renewcommand*{\DTMDisplay}{\DTMdisplay}%
 }
%    \end{macrocode}
%
%\begin{macro}{\DTMgaIEzonemaps}
% The time zone mappings are set through this command, which can be
% redefined if extra mappings are required or mappings need to be
% removed.
%    \begin{macrocode}
\newcommand*{\DTMgaIEzonemaps}{%
  \DTMdefzonemap{00}{00}{GMT}%
  \DTMdefzonemap{01}{00}{IST}%
}
%    \end{macrocode}
%\end{macro}

% Switch style according to the \opt{useregional} setting.
%    \begin{macrocode}
\DTMifcaseregional
{}% do nothing
{\DTMsetstyle{ga-IE}}
{\DTMsetstyle{ga-IE-numeric}}
%    \end{macrocode}
%
% Redefine \cs{dateirish} (or \cs{date}\meta{dialect}) to prevent
% \sty{babel} from resetting \cs{today}. (For this to work,
% \sty{babel} must already have been loaded if it's required.)
%\changes{1.1}{2018-04-24}{removed spurious space}
%    \begin{macrocode}
\ifcsundef{date\CurrentTrackedDialect}
{%
  \ifundef\dateirish
  {% do nothing
  }%
  {%
    \def\dateirish{%
      \DTMifcaseregional
      {}% do nothing
      {\DTMsetstyle{ga-IE}}%
      {\DTMsetstyle{ga-IE-numeric}}%
    }%
  }%
}%
{%
  \csdef{date\CurrentTrackedDialect}{%
    \DTMifcaseregional
    {}% do nothing
    {\DTMsetstyle{ga-IE}}%
    {\DTMsetstyle{ga-IE-numeric}}%
  }%
}%
%    \end{macrocode}
%\iffalse
%    \begin{macrocode}
%</datetime2-ga-IE.ldf>
%    \end{macrocode}
%\fi
%\subsection{Irish (Northern Ireland) Module (\texttt{datetime2-ga-GB.ldf})}
%\changes{1.0}{2015-03-26}{Initial release}
% As "irish" but uses different time zone mappings.
%\iffalse
%    \begin{macrocode}
%<*datetime2-ga-GB.ldf>
%    \end{macrocode}
%\fi
%
% Identify Module
%    \begin{macrocode}
\ProvidesDateTimeModule{ga-GB}[2018/04/24 v1.1]
%    \end{macrocode}
% Need to find out if XeTeX or LuaTeX are being used.
%    \begin{macrocode}
\RequirePackage{ifxetex,ifluatex}
%    \end{macrocode}
% XeTeX and LuaTeX natively support UTF-8, so load
% \texttt{irish-utf8} if either of those engines are used
% otherwise load \texttt{irish-ascii}.
%    \begin{macrocode}
\ifxetex
 \RequireDateTimeModule{irish-utf8}
\else
 \ifluatex
   \RequireDateTimeModule{irish-utf8}
 \else
   \RequireDateTimeModule{irish-ascii}
 \fi
\fi
%    \end{macrocode}
%
% Define the \texttt{ga-GB} style.
% The time style is the same as the "default" style
% provided by \sty{datetime2}. This may need correcting. For
% example, if a 12 hour style similar to the "englishampm" (from the
% "english-base" module) is required. 
%
% Allow the user a way of configuring the "ga-GB" and
% "ga-GB-numeric" styles. This doesn't use the package wide
% separators such as
% \cs{dtm@datetimesep} in case other date formats are also required.
%\begin{macro}{\DTMgaGBdaymonthsep}
% The separator between the day and month for the text format.
%    \begin{macrocode}
\newcommand*{\DTMgaGBdaymonthsep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaGBmonthyearsep}
% The separator between the month and year for the text format.
%    \begin{macrocode}
\newcommand*{\DTMgaGBmonthyearsep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaGBdatetimesep}
% The separator between the date and time blocks in the full format
% (either text or numeric).
%    \begin{macrocode}
\newcommand*{\DTMgaGBdatetimesep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaGBtimezonesep}
% The separator between the time and zone blocks in the full format
% (either text or numeric).
%    \begin{macrocode}
\newcommand*{\DTMgaGBtimezonesep}{\space}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaGBdatesep}
% The separator for the numeric date format.
%    \begin{macrocode}
\newcommand*{\DTMgaGBdatesep}{/}
%    \end{macrocode}
%\end{macro}
%
%\begin{macro}{\DTMgaGBtimesep}
% The separator for the numeric time format.
%    \begin{macrocode}
\newcommand*{\DTMgaGBtimesep}{:}
%    \end{macrocode}
%\end{macro}
%
%Provide keys that can be used in \cs{DTMlangsetup} to set these
%separators.
%    \begin{macrocode}
\DTMdefkey{ga-GB}{daymonthsep}{\renewcommand*{\DTMgaGBdaymonthsep}{#1}}
\DTMdefkey{ga-GB}{monthyearsep}{\renewcommand*{\DTMgaGBmonthyearsep}{#1}}
\DTMdefkey{ga-GB}{datetimesep}{\renewcommand*{\DTMgaGBdatetimesep}{#1}}
\DTMdefkey{ga-GB}{timezonesep}{\renewcommand*{\DTMgaGBtimezonesep}{#1}}
\DTMdefkey{ga-GB}{datesep}{\renewcommand*{\DTMgaGBdatesep}{#1}}
\DTMdefkey{ga-GB}{timesep}{\renewcommand*{\DTMgaGBtimesep}{#1}}
%    \end{macrocode}
%
% TODO: provide a boolean key to switch between full and abbreviated
% formats if appropriate. (I don't know how the date should be
% abbreviated.)
%
% Define a boolean key that determines if the time zone mappings
% should be used.
%    \begin{macrocode}
\DTMdefboolkey{ga-GB}{mapzone}[true]{}
%    \end{macrocode}
% The default is to use mappings.
%    \begin{macrocode}
\DTMsetbool{ga-GB}{mapzone}{true}
%    \end{macrocode}
%
% Define a boolean key that determines if the day of month should be
% displayed.
%    \begin{macrocode}
\DTMdefboolkey{ga-GB}{showdayofmonth}[true]{}
%    \end{macrocode}
% The default is to show the day of month.
%    \begin{macrocode}
\DTMsetbool{ga-GB}{showdayofmonth}{true}
%    \end{macrocode}
%
% Define a boolean key that determines if the year should be
% displayed.
%    \begin{macrocode}
\DTMdefboolkey{ga-GB}{showyear}[true]{}
%    \end{macrocode}
% The default is to show the year.
%    \begin{macrocode}
\DTMsetbool{ga-GB}{showyear}{true}
%    \end{macrocode}
%
% Define the "ga-GB" style. (TODO: implement day of week?)
%    \begin{macrocode}
\DTMnewstyle
 {ga-GB}% label
 {% date style
   \renewcommand*\DTMdisplaydate[4]{%
     \DTMifbool{ga-GB}{showdayofmonth}
     {\DTMirishordinal{##3}\DTMgaGBdaymonthsep}%
     {}%
     \DTMirishmonthname{##2}%
     \DTMifbool{ga-GB}{showyear}%
     {%
       \DTMgaGBmonthyearsep
       \number##1 % space intended
     }%
     {}%
   }%
   \renewcommand*{\DTMDisplaydate}{\DTMdisplaydate}%
 }%
 {% time style (use default)
   \DTMsettimestyle{default}%
 }%
 {% zone style
   \DTMresetzones
   \DTMgaGBzonemaps
   \renewcommand*{\DTMdisplayzone}[2]{%
     \DTMifbool{ga-GB}{mapzone}%
     {\DTMusezonemapordefault{##1}{##2}}%
     {%
       \ifnum##1<0\else+\fi\DTMtwodigits{##1}%
       \ifDTMshowzoneminutes\DTMgaGBtimesep\DTMtwodigits{##2}\fi
     }%
   }%
 }%
 {% full style
   \renewcommand*{\DTMdisplay}[9]{%
    \ifDTMshowdate
     \DTMdisplaydate{##1}{##2}{##3}{##4}%
     \DTMgaGBdatetimesep
    \fi
    \DTMdisplaytime{##5}{##6}{##7}%
    \ifDTMshowzone
     \DTMgaGBtimezonesep
     \DTMdisplayzone{##8}{##9}%
    \fi
   }%
   \renewcommand*{\DTMDisplay}{\DTMdisplay}%
 }%
%    \end{macrocode}
%
% Define numeric style.
%    \begin{macrocode}
\DTMnewstyle
 {ga-GB-numeric}% label
 {% date style
    \renewcommand*\DTMdisplaydate[4]{%
      \DTMifbool{ga-GB}{showdayofmonth}%
      {%
        \number##3 % space intended
        \DTMgaGBdatesep
      }%
      {}%
      \number##2 % space intended
      \DTMifbool{ga-GB}{showyear}%
      {%
        \DTMgaGBdatesep
        \number##1 % space intended
      }%
      {}%
    }%
    \renewcommand*{\DTMDisplaydate}[4]{\DTMdisplaydate{##1}{##2}{##3}{##4}}%
 }%
 {% time style
    \renewcommand*\DTMdisplaytime[3]{%
      \number##1
      \DTMgaGBtimesep\DTMtwodigits{##2}%
      \ifDTMshowseconds\DTMgaGBtimesep\DTMtwodigits{##3}\fi
    }%
 }%
 {% zone style
   \DTMresetzones
   \DTMgaGBzonemaps
   \renewcommand*{\DTMdisplayzone}[2]{%
     \DTMifbool{ga-GB}{mapzone}%
     {\DTMusezonemapordefault{##1}{##2}}%
     {%
       \ifnum##1<0\else+\fi\DTMtwodigits{##1}%
       \ifDTMshowzoneminutes\DTMgaGBtimesep\DTMtwodigits{##2}\fi
     }%
   }%
 }%
 {% full style
   \renewcommand*{\DTMdisplay}[9]{%
    \ifDTMshowdate
     \DTMdisplaydate{##1}{##2}{##3}{##4}%
     \DTMgaGBdatetimesep
    \fi
    \DTMdisplaytime{##5}{##6}{##7}%
    \ifDTMshowzone
     \DTMgaGBtimezonesep
     \DTMdisplayzone{##8}{##9}%
    \fi
   }%
   \renewcommand*{\DTMDisplay}{\DTMdisplay}%
 }
%    \end{macrocode}
%
%\begin{macro}{\DTMgaGBzonemaps}
% The time zone mappings are set through this command, which can be
% redefined if extra mappings are required or mappings need to be
% removed.
%    \begin{macrocode}
\newcommand*{\DTMgaGBzonemaps}{%
  \DTMdefzonemap{00}{00}{GMT}%
  \DTMdefzonemap{01}{00}{BST}%
}
%    \end{macrocode}
%\end{macro}

% Switch style according to the \opt{useregional} setting.
%    \begin{macrocode}
\DTMifcaseregional
{}% do nothing
{\DTMsetstyle{ga-GB}}
{\DTMsetstyle{ga-GB-numeric}}
%    \end{macrocode}
%
% Redefine \cs{dateirish} (or \cs{date}\meta{dialect}) to prevent
% \sty{babel} from resetting \cs{today}. (For this to work,
% \sty{babel} must already have been loaded if it's required.)
%\changes{1.1}{2018-04-24}{removed spurious space}
%    \begin{macrocode}
\ifcsundef{date\CurrentTrackedDialect}
{%
  \ifundef\dateirish
  {% do nothing
  }%
  {%
    \def\dateirish{%
      \DTMifcaseregional
      {}% do nothing
      {\DTMsetstyle{ga-GB}}%
      {\DTMsetstyle{ga-GB-numeric}}%
    }%
  }%
}%
{%
  \csdef{date\CurrentTrackedDialect}{%
    \DTMifcaseregional
    {}% do nothing
    {\DTMsetstyle{ga-GB}}%
    {\DTMsetstyle{ga-GB-numeric}}%
  }%
}%
%    \end{macrocode}
%\iffalse
%    \begin{macrocode}
%</datetime2-ga-GB.ldf>
%    \end{macrocode}
%\fi
%\Finale
\endinput
