Question

I found a bug in a regex in one of python-scripts and I need help to solve it.
The problem is that the script splits a string with re.split('(V[A-Z])', string) but I don’t want a split if the specific substring SVD is found.

example:
“ACD VU LSF VMSUGH VIJ SVD HJV DVO” -> “ACD “, “U LSF “,”MSUGH “, “IJ SVD HJV D”, “O”

Is there someone out there that can solve my problem?

Answer 1

If I understand your question correctly, you should use lookbehind assertion in regex.
http://docs.python.org/library/re.html

>>>x = 'ACD VU LSF VMSUGH VIJ SVD HJV DVO'
>>>result = re.split('V[A-Z](?<!SVD)', x)
['ACD ', ' LSF ', 'SUGH ', 'J SVD HJV D', '']