regress/mdoc/Sm/scope.in

   1 .Dd January 2, 2010
   2 .Dt SM-SCOPE 1
   3 .Os OpenBSD
   4 .Sh NAME
   5 .Nm Sm-scope
   6 .Nd scope of the spacing macro
   7 .Sh DESCRIPTION
   8 Using an abbreviated example from the
   9 .Xr ksh 1
  10 manual.
  11 .Pp
  12 Modifiers can be applied to the
  13 .Pf ${ Ns Ar name Ns }
  14 form of parameter substitution:
  15 .Bl -tag -width Ds
  16 .Sm off
  17 .It ${ Ar name No :- Ar word No }
  18 .Sm on
  19 If
  20 .Ar name
  21 is set and not
  22 .Dv NULL ,
  23 it is substituted; otherwise,
  24 .Ar word
  25 is substituted.
  26 .El
  27 .Pp
  28 In the above modifiers, the
  29 .Ql \&:
  30 can be omitted, ...