= 48 and _ctoi(c) <= 57 def isgraph(c): return _ctoi(c) >= 33 and _ctoi(c) <= 126 def islower(c): return _ctoi(c) >= 97 and _ctoi(c) <= 122 def isprint(c): return _ctoi(c) >= 32 and _ctoi(c) <= 126 def ispunct(c): return _ctoi(c) != 32 and not isalnum(c) def isspace(c): return _ctoi(c) in (9, 10, 11, 12, 13, 32) def isupper(c): return _ctoi(c) >= 65 and _ctoi(c) <= 90 def isxdigit(c): return isdigit(c) or \ (_ctoi(c) >= 65 and _ctoi(c) <= 70) or (_ctoi(c) >= 97 and _ctoi(c) <= 102) def isctrl(c): return _ctoi(c) < 32 def ismeta(c): return _ctoi(c) > 127 def ascii(c): if type(c) == type(""): return chr(_ctoi(c) & 0x7f) else: return _ctoi(c) & 0x7f def ctrl(c): if type(c) == type(""): return chr(_ctoi(c) & 0x1f) else: return _ctoi(c) & 0x1f def alt(c): if type(c) == type(""): return chr(_ctoi(c) | 0x80) else: return _ctoi(c) | 0x80 def unctrl(c): bits = _ctoi(c) if bits == 0x7f: rep = "^?" elif isprint(bits & 0x7f): rep = chr(bits & 0x7f) else: rep = "^" + chr(((bits & 0x7f) | 0x20) + 0x20) if bits & 0x80: return "!" + rep return rep