1. enforce 2 digits after the decimal point - auto insert (.)00 if a regular integer entered e.g a 1 becomes 1.00
2. The products should always have a height and width > 0 so 0.01 is the smallest value the user should be able to input
3. maximum of 6digits before the decimal point
4. If a user enters .1 it should transform value to 0.10
5. If a user enters .12 it should transform value to 0.12

^(0(\.(0[1-9]|[1-9]\d))?|([1-9]\d{0,5}\.\d{2}))$

audibleid wrote:

^(0(\.(0[1-9]|[1-9]\d))?|([1-9]\d{0,5}\.\d{2}))$

1. If a user enters .1 it should transform value to 0.10
2. If a user enters .12 it should transform value to 0.12

These values are allowed/disallowed