sort anything that looks like a number in pentaho data integration using sort step

Hi All,


I want to sort anything that looks like a number in a field in pentaho data integration using sort step.
I have string type field which contains strings and number values.I want to sort to get numbers first and then string values.

For example if column has values 12A,12B,123,ZZ,70
Then I want output as 70,123,12A,12B,ZZ

Its like sorting alphanumerically with numbers first.




Please help!

Thanks
Ajinkya