Code to move left justified alpha to numeric

I have a field called TRZPRO which is defined as 12 char alphanumeric.  The
field contains something like this (periods are spaces)

1234567.....

I can have any number of digits and spaces.

I want to put that into a 12 digit numeric field called ID#.

I came up with this code (WL is a 2 digit numeric field), TRZPROS is defined
LIKE(TRZPRO)

c                   Eval      Wl          = %len(%Trimr(TrzPro))
c                   Eval      TrzProS     = '000000000000'
c                   Eval      %Subst(TrzPros:13-Wl:wl) = %Trimr(TrzPro)
c                   Move      TrzPros       Id#

We tried all sorts of things with Triml/trimr, Moves, etc.

Is there a better way?

Art Tostaine, Jr.
CCA, Inc.
Jackson, NJ 08527

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