Operate space does not work

[agirault]

Setting the operator parameter in the kws.xml config file does not spot a wrong number of spaces.

<Operator>
    <spaceBefore>1</spaceBefore>
    <spaceAfter>1</spaceAfter>
</Operator>

or

<Operator>1,1</Operator>

Does not spot errors like following: a=b nor with more spaces than 1.