diff options
| -rw-r--r-- | decoders/common/srdhelper/mod.py | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/decoders/common/srdhelper/mod.py b/decoders/common/srdhelper/mod.py index e37345a..e1fac3d 100644 --- a/decoders/common/srdhelper/mod.py +++ b/decoders/common/srdhelper/mod.py @@ -17,6 +17,9 @@ ## along with this program; if not, see <http://www.gnu.org/licenses/>. ## +from enum import IntEnum, unique +from itertools import chain + # Return the specified BCD number (max. 8 bits) as integer. def bcd2int(b): return (b & 0x0f) + ((b >> 4) * 10) @@ -34,3 +37,35 @@ def bitunpack(num, minbits=0): num >>= 1 minbits -= 1 return tuple(res) + +@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()) |