converting ip regex to iprange

[Agnello George]

Hi I have about 300 + ip regex in my apache file like this


11\.45\.3[2-9]\..*$

 ^11\.45\.4[0-9]\..*$

 ^11\.45\.5[0-9]\..*$


I have to convert like this into CIDR .


·         11.45.32.0/21

·         11.45.40.0/21

·         11.45.48.0/23

·         11.45.50.0/21
11.45.58.0/23

is there a  module that can help me convert ip regex to ip range .


thanks

Agnello