Using Tabularize plugin

How can modify this…

pt1 = [0, 1, 0]
pt2 = [0.588, -0.809, 0]
pt3 = [-0.951, 0.309, 0]
pt4 = [0.951, 0.309, 0]
pt5 = [-0.588, -0.809, 0]

…to make it look like this…

pt1 = [     0,      1, 0]
pt2 = [ 0.588, -0.809, 0]
pt3 = [-0.951,  0.309, 0]
pt4 = [ 0.951,  0.309, 0]
pt5 = [-0.588, -0.809, 0]

…using the Tabularize plugin? It's all about regular expressions and I could not find one that works in this case.