def match(self, path):
"""Check if the rule matches a given path. Path is a string in the
form ``"subdomain|/path(method)"`` and is assembled by the map. If
the map is doing host matching the subdomain part will be the host
instead.
If the rule matches a dict with the converted values is returned,
otherwise the return value is `None`.
:internal:
"""
if not self.build_only:
m = self._regex.search(path)
if m is not None:
groups = m.groupdict()
# we have a folder like part of the url without a trailing
# slash and strict slashes enabled. raise an exception that
# tells the map to redirect to the same url but with a
# trailing slash
if self.strict_slashes and not self.is_leaf and \
not groups.pop('__suffix__'):
raise RequestSlash()
# if we are not in strict slashes mode we have to remove
# a __suffix__
elif not self.strict_slashes:
del groups['__suffix__']
result = {}
for name, value in iteritems(groups):
try:
value = self._converters[name].to_python(value)
except ValidationError:
return
result[str(name)] = value
if self.defaults:
result.update(self.defaults)
if self.alias and self.map.redirect_defaults:
raise RequestAliasRedirect(result)
return result
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