blob: 47160c32c119de0bda3cf3b2cfb0975c7c5fc934 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
import sys, tty, termios
def getch():
import sys, tty, termios
old_settings = termios.tcgetattr(0)
new_settings = old_settings[:]
new_settings[3] &= ~termios.ICANON
try:
termios.tcsetattr(0, termios.TCSANOW, new_settings)
ch = sys.stdin.read(1)
# except BlockingIOError:
# pass
finally:
termios.tcsetattr(0, termios.TCSANOW, old_settings)
return ch
def get_valid_char(char_list):
"""returns input if it matches a list of valid chars, else retruns False"""
valid = False
in_char = getch()
for char in char_list:
if in_char == char:
valid = True
break
if not valid:
return False
return in_char
def get_pos_int():
"""returns input as int; returns False if not a positive integer"""
try:
in_int = int(input())
except:
return False
else:
if in_int < 1:
return False
return in_int
|
