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[REBOL] Re: Business Object Versioning

From: sunandadh:aol at: 5-Apr-2002 6:34

> I really would like to have object manipulation functions for 1, 2 and 3. > Where > 1 can be solved by short function;-)
I don't know any easy way. I had to do something similar when I wanted an object that was made up of the differences between two other objects. aa: make object! [a: 1 b: 2 c: 3] bb: make object! [b: 2 a: 99 d: 4] print mold ob-diff aa bb make object! [a: 99 c: 3 d: 4] I won't shame myself by published the highly hacked code -- which only works for simple variables anyway -- but basically, I compare the two objects, compose a block of differences, and then Do that block: do [make object! [a: 2 c: 3 d: 4]] You might try a similar technique to build a new object to replace your original one, Sunanda.