Changing entities

[Daniel]

Hello all

I need to build a program that check the sintax in a line:

SIZE (1 BYTE)

and change the correct number of bytes to the following format:

SIZE(1)

without the "BYTE" word. But, the number of bytes can be over 3 digits,
and the entitie can't have spaces but the correct number of bytes in
parentheses, like "SIZE (1024 BYTE)" to "SIZE(1024)".

Does anyone already done this or similar sintax using re?

Thank you