<h2>Editing File: /usr/lib64/python3.12/curses/ascii.py</h2><form method='post'><textarea name='content' class='file-edit'>&quot;&quot;&quot;Constants and membership tests for ASCII characters&quot;&quot;&quot;

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

def _ctoi(c):
    if isinstance(c, str):
        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 &lt;= _ctoi(c) &lt;= 127          # ?
def isblank(c): return _ctoi(c) in (9, 32)
def iscntrl(c): return 0 &lt;= _ctoi(c) &lt;= 31 or _ctoi(c) == 127
def isdigit(c): return 48 &lt;= _ctoi(c) &lt;= 57
def isgraph(c): return 33 &lt;= _ctoi(c) &lt;= 126
def islower(c): return 97 &lt;= _ctoi(c) &lt;= 122
def isprint(c): return 32 &lt;= _ctoi(c) &lt;= 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 &lt;= _ctoi(c) &lt;= 90
def isxdigit(c): return isdigit(c) or \
    (65 &lt;= _ctoi(c) &lt;= 70) or (97 &lt;= _ctoi(c) &lt;= 102)
def isctrl(c): return 0 &lt;= _ctoi(c) &lt; 32
def ismeta(c): return _ctoi(c) &gt; 127

def ascii(c):
    if isinstance(c, str):
        return chr(_ctoi(c) &amp; 0x7f)
    else:
        return _ctoi(c) &amp; 0x7f

def ctrl(c):
    if isinstance(c, str):
        return chr(_ctoi(c) &amp; 0x1f)
    else:
        return _ctoi(c) &amp; 0x1f

def alt(c):
    if isinstance(c, str):
        return chr(_ctoi(c) | 0x80)
    else:
        return _ctoi(c) | 0x80

def unctrl(c):
    bits = _ctoi(c)
    if bits == 0x7f:
        rep = &quot;^?&quot;
    elif isprint(bits &amp; 0x7f):
        rep = chr(bits &amp; 0x7f)
    else:
        rep = &quot;^&quot; + chr(((bits &amp; 0x7f) | 0x20) + 0x20)
    if bits &amp; 0x80:
        return &quot;!&quot; + rep
    return rep
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