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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /macros/latex/contrib/iftex/iftex.sty
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+%%
+%% This is file `iftex.sty',
+
+%%
+%% __________________________________
+%% Copyright © 2010–2013 Persian TeX Group
+%%
+%% License information appended.
+%%
+%%
+\csname iftexloaded\endcsname
+\let\iftexloaded\endinput
+\expandafter\ifx\csname ProvidesPackage\endcsname\relax\else
+ \ProvidesPackage{iftex}
+ [2013/04/04 v0.2 Provides if(tex) conditional for PDFTeX, XeTeX, and LuaTeX]
+\fi
+\def\RequirePDFTeX{%
+ \ifPDFTeX\else
+ \begingroup
+ \errorcontextlines=-1\relax
+ \newlinechar=10\relax
+ \errmessage{^^J
+ ********************************************^^J
+ * PDFTeX is required to compile this document.^^J
+ * Sorry!^^J
+ ********************************************}%
+ \endgroup
+ \fi}
+\def\RequireXeTeX{%
+ \ifXeTeX\else
+ \begingroup
+ \errorcontextlines=-1\relax
+ \newlinechar=10\relax
+ \errmessage{^^J
+ ********************************************^^J
+ * XeTeX is required to compile this document.^^J
+ * Sorry!^^J
+ ********************************************}%
+ \endgroup
+ \fi}
+\def\RequireLuaTeX{%
+ \ifLuaTeX\else
+ \begingroup
+ \errorcontextlines=-1\relax
+ \newlinechar=10\relax
+ \errmessage{^^J
+ ********************************************^^J
+ * LuaTeX is required to compile this document.^^J
+ * Sorry!^^J
+ ********************************************}%
+ \endgroup
+ \fi}
+\expandafter\ifx\csname ifPDFTeX\endcsname\relax\else
+ \expandafter\endinput
+\fi
+\expandafter\ifx\csname ifXeTeX\endcsname\relax\else
+ \expandafter\endinput
+\fi
+\expandafter\ifx\csname ifLuaTeX\endcsname\relax\else
+ \expandafter\endinput
+\fi
+\newif\ifPDFTeX
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname pdfmatch\endcsname\relax
+ \PDFTeXfalse
+\else
+ \PDFTeXtrue
+\fi
+\newif\ifXeTeX
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname XeTeXinterchartoks\endcsname\relax
+ \XeTeXfalse
+\else
+ \XeTeXtrue
+\fi
+\newif\ifLuaTeX
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname directlua\endcsname\relax
+ \LuaTeXfalse
+\else
+ \LuaTeXtrue
+\fi
+%%
+%% Copyright © 2010–2013 by Persian TeX Group <persian-tex@tug.org>
+%%
+%% Distributable under the LaTeX Project Public License,
+%% version 1.3c or higher (your choice). The latest version of
+%% this license is at: http://www.latex-project.org/lppl.txt
+%%
+%% This work is "maintained" (as per LPPL maintenance status)
+%% by Persian TeX Group.
+%%
+%%
+%%
+%%
+%%
+%% End of file `iftex.sty'.