blob: 605bf4b5920a3a60fcba3cd94e415b469d53edcc (
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
|
```console
$ 04_02_parse --help
clap [..]
A simple to use, efficient, and full-featured Command Line Argument Parser
USAGE:
04_02_parse[EXE] <PORT>
ARGS:
<PORT> Network port to use
OPTIONS:
-h, --help Print help information
-V, --version Print version information
$ 04_02_parse 22
PORT = 22
$ 04_02_parse foobar
? failed
error: Invalid value "foobar" for '<PORT>': invalid digit found in string
For more information try --help
$ 04_02_parse_derive 0
? failed
error: Invalid value "0" for '<PORT>': 0 is not in 1..=65535
For more information try --help
```
|
