need help of RE

[tiissa]

cheng wrote:
> im sorry, my engilsh is not vell well,

That's alright, you could have been french. ;)

> the string not only contain '&' and '|' and it can be anyting
> 
> i just want to split out the "whole word" inside the string

Look at the example for split function of re module in the doc [1].

In short:

 >>> import re
 >>> s="(word1 & (Word2|woRd3))"
 >>> re.split("\W+",s)
['', 'word1', 'Word2', 'woRd3', '']
 >>> [w.lower() for w in re.split("\W+",s) if w != '']
['word1', 'word2', 'word3']
 >>>


[1]http://python.org/doc/lib/node114.html