+listextract: ${listextract{ 2}{a:b:c:d}}
+listextract: ${listextract{-2}{<,a,b,c,d}{X${value}X}}
+listextract: ${listextract{ 5}{a:b:c:d}}
+listextract: ${listextract{-5}{a:b:c:d}}
+listextract: ${listextract{ 5}{a:b:c:d}{}{fail}}
+listextract: ${listextract{ 5}{a:b:c:d}{}fail}
+
+sort: ${sort{3:2:1:4}{<}{$item}}
+sort: ${sort {<, 3,2,1,4}{>}{$item}}
+sort: ${sort{c:B:a:aa}{lti}{$item}}
+sort: ${sort{666 r99.ex.com:10 smtp.ex.com:100 r2.ex.com}{<}{${sg {$item}{([0-9]*).*\$}{\$1}}}}
+sort: ${sort{666,r99.ex.com:10,smtp.ex.com:100,r2.ex.com}{<}{${listextract{1}{<,$item}}}}
+sort: "${sort{}{<}{$item}}"
+