Change certain values in a matrix

Hi all I jhave a matrix A

A=[1 1 0 0 1 1 1 0; 0 0 1 1 1 1 0 0; 1 1 0 0 1 1 0 1; 1 1 1 1 1 1 1 1; 1 1 1 1 1 1 1 1]

I would like to "correct" its columns like this:

when I have a column where the sequence "0 1 0" appears I want to be changed to "0 0 0"

AND

when I have a column where the sequence "1 0 1" appears I want to be changed to "1 1 1"

So I have finaly the matrix B

B=[1 1 0 0 1 1 1 0; 1 1 0 0 1 1 0 0; 1 1 0 0 1 1 0 1; 1 1 1 1 1 1 1 1; 1 1 1 1 1 1 1 1]

I would like to use it for a larger matrix under this concept.

Do you know how to do it?

thanks in advance!

[Torsten]

What if the matrix has a column [1; 0; 1; 0] ?

Does if become [1 ;1; 1 ;0] or [1 ;0 ;0 ;0] ?

[Nikolas Spiliopoulos]

I would say [1;0;0;0]

thanks!

[Torsten]

I would say you have to define another rule.

[Nikolas Spiliopoulos]

ok thanks!