def resolve_pattern_prompt(self, match):
"""
Resolve adaptive pattern prompt
"""
old_pattern_prompt = self.patterns["prompt"].pattern
pattern_prompt = old_pattern_prompt
sl = self.profile.can_strip_hostname_to
for k, v in six.iteritems(match.groupdict()):
if v:
if k == "hostname" and sl and len(v) > sl:
ss = list(reversed(v[sl:]))
v = re.escape(v[:sl]) + reduce(
lambda x, y: "(?:%s%s)?" % (re.escape(y), x),
ss[1:],
"(?:%s)?" % re.escape(ss[0]),
)
else:
v = re.escape(v)
pattern_prompt = replace_re_group(pattern_prompt,
"(?P<%s>" % k, v)
pattern_prompt = replace_re_group(pattern_prompt, "(?P=%s" % k,
v)
else:
self.logger.error("Invalid prompt pattern")
if old_pattern_prompt != pattern_prompt:
self.logger.debug("Refining pattern prompt to %r", pattern_prompt)
self.patterns["prompt"] = re.compile(pattern_prompt,
re.DOTALL | re.MULTILINE)
def test_replace_re_group(config, expected):
assert replace_re_group(config, "(?P<groupname>", "groupvalue") == expected
