digi.rip
my version of @dis.sociat.ing's dollcode algorithm in python
Feat: decode dollcode
- lossless decoding
- renamed functions for clarity
+34
-5
+34
-5
main.py
+34
-5
main.py
···
5
5
parser = argparse.ArgumentParser(description="converts input into dollcode")
6
6
parser.add_argument("input", type=str, help="input to convert")
7
7
parser.add_argument("-c", action="store_true", help="copy output to clipboard")
8
+
parser.add_argument("-d", action="store_true", help="decode dollcode")
8
9
args = parser.parse_args()
9
10
10
11
DOLLCODE_CHARS = ("▌", "▖", "▘")
···
12
13
13
14
14
15
# encodes input string into integer by using ord() & base256
15
-
def convert_to_int(input: str):
16
+
def encode_base256_int(input: str):
16
17
result = 0
17
18
18
19
for char in input:
···
21
22
return result
22
23
23
24
25
+
# decodes input number back in char
26
+
def decode_base256_int(num: int):
27
+
output = ""
28
+
29
+
while num > 0:
30
+
char = chr(num % 256)
31
+
output = char + output
32
+
num = num // 256
33
+
34
+
return output
35
+
36
+
24
37
# converts encoded base256 int -> bijective base-3 numeration
25
38
# then inserts corresponding number (3, 1, 2) into output list
26
-
def convert_to_dollcode(num: int):
39
+
def encode_dollcode(num: int):
27
40
output: list[str] = []
28
41
window: int = num
29
42
···
40
53
return output
41
54
42
55
56
+
# decodes input dollcode -> integer
57
+
def decode_dollcode(input: str):
58
+
result: int = 0
59
+
60
+
for char in input:
61
+
if char == DOLLCODE_CHARS[0]:
62
+
result = (result + 1) * BASE_NUM
63
+
else:
64
+
result = result * BASE_NUM + DOLLCODE_CHARS.index(char)
65
+
66
+
return result
67
+
68
+
43
69
# loops dollcode list, appends each output list entry to
44
70
# string, then prints or prints + copies if appropriate flag was passed
45
71
def print_dollcode(output: list[str], copy: bool):
···
55
81
print(string)
56
82
57
83
58
-
def main(input: str, copy: bool):
59
-
print_dollcode(convert_to_dollcode(convert_to_int(input)), copy)
84
+
def main(input: str, copy: bool, decode: bool):
85
+
if decode:
86
+
print(decode_base256_int(decode_dollcode(input)))
87
+
else:
88
+
print_dollcode(encode_dollcode(encode_base256_int(input)), copy)
60
89
61
90
62
91
if __name__ == "__main__":
63
-
main(args.input, args.c)
92
+
main(args.input, args.c, args.d)