%% arabtex-granada.sty
%% Standalone ArabTeX distribution with Granada Spanish transliteration
%%
%% ArabTeX was written by Klaus Lagally.
%% The arabtex-granada adaptation was written by Francisco M. Garcia.
%% Copyright (c) Klaus Lagally
%% Copyright (c) 2026 Francisco M. Garcia
%%
%% This work may be distributed and/or modified under the conditions of
%% the LaTeX Project Public License, either version 1.3c of this license or
%% (at your option) any later version. The latest version of this license
%% is available at https://www.latex-project.org/lppl/.
%%
%% This work has the LPPL maintenance status "maintained".
%% The Current Maintainer of this work is Francisco M. Garcia.
%%
%% This is a derived work. It bundles an unmodified ArabTeX runtime in a
%% private directory; support for arabtex-granada must not be requested from
%% the original ArabTeX author.

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{arabtex-granada}[2026/08/15 v1.0.0 Standalone ArabTeX with Granada transcription]

\makeatletter

\ifx\ar@batcode\undefined
\else
  \PackageError{arabtex-granada}
    {ArabTeX was loaded before arabtex-granada}
    {Load only arabtex-granada. It supplies its own private ArabTeX runtime.}
  \expandafter\endinput
\fi

% Locate the bundled runtime both in the source tree and after installation
% below tex/latex/arabtex-granada.
\IfFileExists{arabtex-granada/vendor/texinput/arabtex-granada-runtime.sty}{%
  \def\atgranada@vendordir{arabtex-granada/vendor/texinput/}%
}{%
  \IfFileExists{vendor/texinput/arabtex-granada-runtime.sty}{%
    \def\atgranada@vendordir{vendor/texinput/}%
  }{%
    \PackageError{arabtex-granada}
      {The bundled ArabTeX runtime was not found}
      {Install the complete arabtex-granada distribution, including vendor/texinput.}%
    \expandafter\endinput
  }%
}

% ArabTeX loads its modules by their historical bare names. Put the private
% directory first and retain it because apatch.sty is loaded a second time at
% \begin{document}.
\ifx\input@path\undefined
  \let\input@path\@empty
\fi
\edef\atgranada@savedinputpath{\input@path}
\edef\input@path{{\atgranada@vendordir}\atgranada@savedinputpath}

% Save the kernel environment commands before the historical runtime replaces
% them, then load the bundled driver explicitly rather than an installed copy.
\let\atgranada@latex@begin\begin
\let\atgranada@latex@end\end
\expandafter\let\expandafter\atgranada@packageversion
  \csname ver@arabtex-granada.sty\endcsname
\let\atgranada@currname\@currname
\let\atgranada@currext\@currext
\def\@currname{arabtex}
\def\@currext{sty}
\expandafter\input\expandafter{\atgranada@vendordir arabtex-granada-runtime.sty}
% Font description lookup does not honor the module loader. Preload the
% bundled descriptions so NFSS cannot select identically named upstream files.
\expandafter\input\expandafter{\atgranada@vendordir Uxnsh.fd}
\expandafter\input\expandafter{\atgranada@vendordir unash.fd}
\expandafter\input\expandafter{\atgranada@vendordir uheb.fd}
\let\@currname\atgranada@currname
\let\@currext\atgranada@currext
\expandafter\let\csname ver@arabtex-granada.sty\endcsname
  \atgranada@packageversion

% ArabTeX copies the 2003 definitions of \begin and \end. Modern LaTeX needs
% its kernel definitions to execute package hooks at the top level. Retain the
% historical behavior on formats that predate the hook interface.
\ifx\IfFormatAtLeastTF\undefined
\else
  \let\begin\atgranada@latex@begin
  \let\end\atgranada@latex@end
\fi

% School of Granada transcription, contributed by Francisco M. Garcia. It
% inherits ZDMG and changes only the three convention-specific letters.
\gdef\tr@grsch{%
  \tr@zdmg
  \gdef\tr@R{g}% .g
  \gdef\tr@G{\^{y}}% ^g
  \gdef\tr@X{j}% _h
  \a@message{School of Granada transliteration.}%
}
\g@addto@macro\tr@table{spanish\tr@grsch}

\makeatother
\endinput