"""

retVal = payload

if payload:

words = set()

for match in re.finditer(r"[A-Za-z_]+", payload):

word = match.group()

if word.upper() in kb.keywords:

words.add(word)

for word in words:

retVal = re.sub("(?<=\W)%s(?=[^A-Za-z_(]|\Z)" % word, "%s%s%s" % (' ' * random.randrange(1, 4), word, ' ' * random.randrange(1, 4)), retVal)

retVal = re.sub("(?<=\W)%s(?=[(])" % word, "%s%s" % (' ' * random.randrange(1, 4), word), retVal)