regress/roff/cond/register.in

   1 .TH REGISTER 1 "May 31, 2015" OpenBSD
   2 .SH NAME
   3 register \- conditional testing whether a register is defined
   4 .SH DESCRIPTION
   5 .ie rmyreg OOPS
   6 .el not yet defined
   7 .br
   8 .nr myreg 0
   9 .ie rmyreg now defined
  10 .el OOPS
  11 .if !rmyreg OOPS