> cat(markdown(
+   "\n| x   | y   |\n| --- | --- |\n| 1   | 2   |\n\n| x   | y   |\n| :-: | --: |\n| 1   | 2   |\n    "))
\tabular{ll}{
   x \tab y \cr
   1 \tab 2 \cr
}
\tabular{cr}{
   x \tab y \cr
   1 \tab 2 \cr
}

