Using `all.SCORE' @ ~/News/all.SCORE [regex syntax]

[Harry Putnam]

all.SCORE:

((mark -100)
 ("from"
  ("nikolys@gmail" -101 nil r)
  ("sina\.com" -101 nil r)
  ("@aol\\.com" -101 nil r)
  ("@[0-9]+\\.com>" -101 nil r)
  ("harry504@gmail" -101 nil r)
  ("s[ea]l[el]\\|discount\\|free\\|wholesale\\|paypal" -101 nil r))
 ("subject"
  ("~~" -101 nil r)
  ("~~\\|>>>\\|\\[A-Z\\]\\{4\\}" -101 nil r)
  ("!!\\|free\\|discount\\|wholesale" -101 nil r)))

I've forgotten how that was generated but would like to hand edit it.

You can see the term `free' in two places... in the last `from' element
and the last `subject' element.

I want the `free' at the last `from' element to be more restrictive as
it is hitting quite a few false positives due to network name with
various combinations of free with a dot like: `free.', `.free' and
`.free.'

This is happening in groups with thousands and thousands of messages
so I don't want to get it wrong... not sure how to re-run it.

So something like (please ignore the elisions (`[...]')):

        [...] |[^\.]free[^\.]\\|[...]

But does it need the double slashes like:

        [...] |\\[^\.\\]free\\[^\.\\] [...]
                      ^^    ^^     ^^      
Will that even accomplish what I am after; to allow `free' in any
combination of: `.free', `free.' or `.free.' to not be down scored?

Is there a handy way to test the regex?

Is there a handy way to rerun all those messages thru `all.SCORE'?