Lib/curses/ascii.py · source-code-analysis/python3.8.1

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python3.8.1

Lib

curses

ascii.py

ascii.py 2.49 KB

"""Constants and membership tests for ASCII characters"""

NUL = 0x00 # ^@
SOH = 0x01 # ^A
STX = 0x02 # ^B
ETX = 0x03 # ^C
EOT = 0x04 # ^D
ENQ = 0x05 # ^E
ACK = 0x06 # ^F
BEL = 0x07 # ^G
BS = 0x08 # ^H
TAB = 0x09 # ^I
HT = 0x09 # ^I
LF = 0x0a # ^J
NL = 0x0a # ^J
VT = 0x0b # ^K
FF = 0x0c # ^L
CR = 0x0d # ^M
SO = 0x0e # ^N
SI = 0x0f # ^O
DLE = 0x10 # ^P
DC1 = 0x11 # ^Q
DC2 = 0x12 # ^R
DC3 = 0x13 # ^S
DC4 = 0x14 # ^T
NAK = 0x15 # ^U
SYN = 0x16 # ^V
ETB = 0x17 # ^W
CAN = 0x18 # ^X
EM = 0x19 # ^Y
SUB = 0x1a # ^Z
ESC = 0x1b # ^[
FS = 0x1c # ^\
GS = 0x1d # ^]
RS = 0x1e # ^^
US = 0x1f # ^_
SP = 0x20 # space
DEL = 0x7f # delete

controlnames = [
"NUL", "SOH", "STX", "ETX", "EOT", "ENQ", "ACK", "BEL",
"BS", "HT", "LF", "VT", "FF", "CR", "SO", "SI",
"DLE", "DC1", "DC2", "DC3", "DC4", "NAK", "SYN", "ETB",
"CAN", "EM", "SUB", "ESC", "FS", "GS", "RS", "US",
"SP"
]

def _ctoi(c):
 if type(c) == type(""):
 return ord(c)
 else:
 return c

def isalnum(c): return isalpha(c) or isdigit(c)
def isalpha(c): return isupper(c) or islower(c)
def isascii(c): return 0 <= _ctoi(c) <= 127 # ?
def isblank(c): return _ctoi(c) in (9, 32)
def iscntrl(c): return 0 <= _ctoi(c) <= 31 or _ctoi(c) == 127
def isdigit(c): return 48 <= _ctoi(c) <= 57
def isgraph(c): return 33 <= _ctoi(c) <= 126
def islower(c): return 97 <= _ctoi(c) <= 122
def isprint(c): return 32 <= _ctoi(c) <= 126
def ispunct(c): return isgraph(c) and not isalnum(c)
def isspace(c): return _ctoi(c) in (9, 10, 11, 12, 13, 32)
def isupper(c): return 65 <= _ctoi(c) <= 90
def isxdigit(c): return isdigit(c) or \
 (65 <= _ctoi(c) <= 70) or (97 <= _ctoi(c) <= 102)
def isctrl(c): return 0 <= _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

Copy Edit Raw Blame History

zhangweibo authored 2021年11月16日 09:46 +08:00 . git init

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"""Constants and membership tests for ASCII characters"""

NUL = 0x00 # ^@
SOH = 0x01 # ^A
STX = 0x02 # ^B
ETX = 0x03 # ^C
EOT = 0x04 # ^D
ENQ = 0x05 # ^E
ACK = 0x06 # ^F
BEL = 0x07 # ^G
BS = 0x08 # ^H
TAB = 0x09 # ^I
HT = 0x09 # ^I
LF = 0x0a # ^J
NL = 0x0a # ^J
VT = 0x0b # ^K
FF = 0x0c # ^L
CR = 0x0d # ^M
SO = 0x0e # ^N
SI = 0x0f # ^O
DLE = 0x10 # ^P
DC1 = 0x11 # ^Q
DC2 = 0x12 # ^R
DC3 = 0x13 # ^S
DC4 = 0x14 # ^T
NAK = 0x15 # ^U
SYN = 0x16 # ^V
ETB = 0x17 # ^W
CAN = 0x18 # ^X
EM = 0x19 # ^Y
SUB = 0x1a # ^Z
ESC = 0x1b # ^[
FS = 0x1c # ^\
GS = 0x1d # ^]
RS = 0x1e # ^^
US = 0x1f # ^_
SP = 0x20 # space
DEL = 0x7f # delete

controlnames = [
"NUL", "SOH", "STX", "ETX", "EOT", "ENQ", "ACK", "BEL",
"BS", "HT", "LF", "VT", "FF", "CR", "SO", "SI",
"DLE", "DC1", "DC2", "DC3", "DC4", "NAK", "SYN", "ETB",
"CAN", "EM", "SUB", "ESC", "FS", "GS", "RS", "US",
"SP"
]

def _ctoi(c):
 if type(c) == type(""):
 return ord(c)
 else:
 return c

def isalnum(c): return isalpha(c) or isdigit(c)
def isalpha(c): return isupper(c) or islower(c)
def isascii(c): return 0 <= _ctoi(c) <= 127 # ?
def isblank(c): return _ctoi(c) in (9, 32)
def iscntrl(c): return 0 <= _ctoi(c) <= 31 or _ctoi(c) == 127
def isdigit(c): return 48 <= _ctoi(c) <= 57
def isgraph(c): return 33 <= _ctoi(c) <= 126
def islower(c): return 97 <= _ctoi(c) <= 122
def isprint(c): return 32 <= _ctoi(c) <= 126
def ispunct(c): return isgraph(c) and not isalnum(c)
def isspace(c): return _ctoi(c) in (9, 10, 11, 12, 13, 32)
def isupper(c): return 65 <= _ctoi(c) <= 90
def isxdigit(c): return isdigit(c) or \
 (65 <= _ctoi(c) <= 70) or (97 <= _ctoi(c) <= 102)
def isctrl(c): return 0 <= _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