@@ -2,19 +2,18 @@
22\usepackage[T1]{fontenc}
33\usepackage{lmodern}
44\usepackage{amssymb,amsmath}
5−\usepackage{iftex}
5+\usepackage{ifxetex,ifluatex}
66\usepackage{fixltx2e} % provides \textsubscript
7−\ifPDFTeX % use microtype with pdflatex if available
8− \IfFileExists{microtype.sty}{\usepackage{microtype}}{}
9−\fi
10−\ifPDFTeX
7+% use microtype if available
8+\IfFileExists{microtype.sty}{\usepackage{microtype}}{}
9+\ifnum 0\ifxetex 1\fi\ifluatex 1\fi=0 % if pdftex
1110 \usepackage[utf8]{inputenc}
1211$if(euro)$
1312 \usepackage{eurosym}
1413$endif$
15−\else
14+\else % if luatex or xelatex
1615 \usepackage{fontspec}
17− \ifXeTeX
16+ \ifxetex
1817 \usepackage{xltxtra,xunicode}
1918 \fi
2019 \defaultfontfeatures{Mapping=tex-text,Scale=MatchLowercase}
@@ -82,7 +81,7 @@ $if(graphics)$
8281\let\Oldincludegraphics\includegraphics
8382\renewcommand{\includegraphics}[1]{\Oldincludegraphics[width=\maxwidth]{#1}}
8483$endif$
85−\ifXeTeX
84+\ifxetex
8685 \usepackage[setpagesize=false, % page size defined by xetex
8786 unicode=false, % unicode breaks when used with xetex
8887 xetex]{hyperref}
@@ -117,7 +116,7 @@ $if(verbatim-in-note)$
117116\VerbatimFootnotes % allows verbatim text in footnotes
118117$endif$
119118$if(lang)$
120−\ifXeTeX
119+\ifxetex
121120 \usepackage{polyglossia}
122121 \setmainlanguage{$mainlang$}
123122\else