{%template concat p1,p2%}
$p1 + p2$
{$template%}

{%template italic text%}
<i>$text$</i>
{$template%}

{%template fontStyle text,style%}
<font style="$style$">$text$</font>
{$template%}

{%rendertemplate concat p1="Happy" p2="New Year!"/}

{%rendertemplate italic text="Italic text"/}

{%rendertemplate fontStyle text="My style" style="color:red"/}