[go: up one dir, main page]

clap 3.0.0-rc.1

A simple to use, efficient, and full-featured Command Line Argument Parser
Documentation 
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

*Jump to [source](pacman.rs)*

[`pacman`](https://wiki.archlinux.org/index.php/pacman) defines subcommands via flags.

Here, `-S` is a short flag subcommand:
```bash
$ pacman -S package
Installing package...
```

Here `--sync` is a long flag subcommand:
```bash
$ pacman --sync package
Installing package...
```

Now the short flag subcommand (`-S`) with a long flag:
```bash
$ pacman -S --search name
Searching for name...
```

And the various forms of short flags that work:
```
$ pacman -S -s name
Searching for name...
$ pacman -Ss name
Searching for name...
```
*(users can "stack" short subcommands with short flags or with other short flag subcommands)*

**NOTE:** Keep in mind that subcommands, flags, and long flags are *case sensitive*: `-Q` and `-q` are different flags/subcommands. For example, you can have both `-Q` subcommand and `-q` flag, and they will be properly disambiguated.
Let's make a quick program to illustrate.