ADM replacement for unit conversion in Acrobat 11.

hi,

I know, ADM is removed completly from Acrobat 11.

I have following scenario where we are using ADM unit conversion methods,

For example, if user input is “2.5-1.5” in a dialog and focus leaves dialog, it will change to value “1”. 

Also units are getting converted to application unit. For example if user input “36pt” it would automatically convert to “.5in”.

Please, suggest.can anybody help me on this?

Thank you.