dje@lanl.gov (debi erpenbeck) (05/02/91)
I've been trying (unsuccessfully) to get the following code to print
"Arg1 is empty". Can someone tell me how to do this?
\def\macro#1#2{%
\ifcat#1=\empty
\message{Arg1 is empty}%
\else
\message{Arg1 is not empty}%
\fi
}
\macro{}{}
\bye
\ifx#1=\empty
\if#1=\empty
\ifcat#1=\empty