How to impute RegExpression

[strongrobby]

I have an expression that is showing the correct test results how do i put into a macro ?

(?<=bin\/WebObjects\/\.woa\/4\/wo\/UbRtbKbWMmbN1ZhXm3lClM\/0\.0\.31\.1\.1\.1\"\>)-Mail[\w\W]*(?=\<\/A\>\<\/SPAN\>)

I need the result of this expression to be put into a branch.

Please Help