blob: 033ff1d54d5a5a41b5972ac34f5ca92a829b04d1 (
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
|
app "roctorrent"
packages { pf: "https://github.com/roc-lang/basic-cli/releases/download/0.5.0/Cufzl36_SnJ4QbOoEmiJ5dIpUxBvdB3NEySvuH82Wio.tar.br" }
imports [pf.Stdout]
provides [main] to pf
bDecodeStr: List U8 -> Result (List U8) [Malformatted]
bDecodeStr = \i ->
when (List.splitFirst i ':') is
Ok {before, after} ->
when (Str.fromUtf8 before) is
Ok ls ->
when (Str.toU32 ls) is
Ok l ->
if Num.toU32 (List.len after) == l then
Ok after
else
Err Malformatted
Err _err -> Err Malformatted
Err _err -> Err Malformatted
Err _err -> Err Malformatted
expect
res = bDecodeStr (Str.toUtf8 "3:foo")
res == Ok (Str.toUtf8 "foo")
expect
errCases = ["foo", "1:foo", "4:foo", ":", "foo:", "1:", "::"]
List.all errCases \t ->
res = bDecodeStr (Str.toUtf8 t)
res == Err Malformatted
main =
Stdout.line "Hello, World"
|
