##
## This file is part of the libsigrokdecode project.
##
-## Copyright (C) 2012-2014 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2012-2020 Uwe Hermann <uwe@hermann-uwe.de>
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## along with this program; if not, see <http://www.gnu.org/licenses/>.
##
+from enum import Enum, IntEnum, unique
+from itertools import chain
+import re
+
# Return the specified BCD number (max. 8 bits) as integer.
def bcd2int(b):
return (b & 0x0f) + ((b >> 4) * 10)
+
+def bin2int(s: str):
+ return int('0b' + s, 2)
+
+def bitpack(bits):
+ return sum([b << i for i, b in enumerate(bits)])
+
+def bitunpack(num, minbits=0):
+ res = []
+ while num or minbits > 0:
+ res.append(num & 1)
+ num >>= 1
+ minbits -= 1
+ return tuple(res)
+
+@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())