Mary E. Plath wrote:

> I believe it is correct that UDC's can call other UDC's ?
> Is there a limit to the number of levels of calling?
> Does the called UDC have to be after the caller UDC
>   in the file ?

As far as that last point, see the :HELP command for the
'OPTION' keyword - in part, it says:

:HELP OPTION ALL
       .
       .
       .
    SYNTAX
                [{LIST  }]     [{RECURSION  }]
         OPTION [{NOLIST}] [,] [{NORECURSION}]
       .
       .
       .
    RECURSION       Specifies that the search for UDCs is to begin at
                    the beginning of the cataloged commands list.
                    RECURSION and NORECURSION do not have any meaning
                    in a command file, because command files are not
                    cataloged.

HTH!

 +-------------------------------------------------------------------+
  "A human being should be able to change a diaper, plan an invasion,
  butcher a hog, conn a ship, design a building, write a sonnet,
  balance accounts, build a wall, set a bone, comfort the dying, take
  orders, give orders, cooperate, act alone, solve equations, analyze
  a new problem, pitch manure, program a computer, cook a tasty meal,
  fight efficiently, die gallantly.  Specialization is for insects."
  -- Robert Heinlein
 +-------------------------------------------------------------------+
  Tim Ericson       tim dot ericson     DenKor Dental Management Corp.
  Sr. Systems Analyst    at denkor dot com      http://www.denkor.com
 +-------------------------------------------------------------------+

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