Forums Scripts & Popups $regex call causes an error - unknown command

alias test {

  %data = 2d

  ; validate that the data is correct an usable

  if ($regex(%data, /^[1-9][smhd]|[1-9][0-9]+[smhd]$/)) {

    ; this line produces an error 
    ; Error: <nick> 1 Unknown command
    ; the '1' appears to be the number of groups encountered

    $regex(%data, /(\D)/g))

    ; using the result of the $regex does not invoke an error

    if ($regex(%data, /(\D)/g)) {
      echo -a $regml(1)
    }

    ; you may consider not testing the result of the $regex as  
    ; bad coding practise however the data has been previously 
    ; tested as being valid

  }
}

raw 421:*: {
  echo 4 -a Error: $1 $2 $3 $4 $5 $6 $7 $8 $9
  halt
}