+
+@unique
+class SrdStrEnum(Enum):
+ @classmethod
+ def from_list(cls, name, l):
+ # Keys are limited/converted to [A-Z0-9_], values can be any string.
+ items = [(re.sub('[^A-Z0-9_]', '_', l[i]), l[i]) for i in range(len(l))]
+ return cls(name, items)
+
+ @classmethod
+ def from_str(cls, name, s):
+ return cls.from_list(name, s.split())
+
+@unique
+class SrdIntEnum(IntEnum):
+ @classmethod
+ def _prefix(cls, p):
+ return tuple([a.value for a in cls if a.name.startswith(p)])
+
+ @classmethod
+ def prefixes(cls, prefix_list):
+ if isinstance(prefix_list, str):
+ prefix_list = prefix_list.split()
+ return tuple(chain(*[cls._prefix(p) for p in prefix_list]))
+
+ @classmethod
+ def _suffix(cls, s):
+ return tuple([a.value for a in cls if a.name.endswith(s)])
+
+ @classmethod
+ def suffixes(cls, suffix_list):
+ if isinstance(suffix_list, str):
+ suffix_list = suffix_list.split()
+ return tuple(chain(*[cls._suffix(s) for s in suffix_list]))
+
+ @classmethod
+ def from_list(cls, name, l):
+ # Manually construct (Python 3.4 is missing the 'start' argument).
+ # Python defaults to start=1, but we want start=0.
+ return cls(name, [(l[i], i) for i in range(len(l))])
+
+ @classmethod
+ def from_str(cls, name, s):
+ return cls.from_list(name, s.split())