clap/examples/tutorial_builder/04_02_validate.md
Ed Page c90a4eabae fix(help): Make output more dense
In looking at other help output, I noticed that they use two spaces, in
place of clap's 4, and it doesn't suffer from legibility.  If it
doesn't make the output worse, let's go ahead and make it as dense so we
fit more content on the screen.

This is a part of #4132
2022-09-07 17:13:55 -05:00

583 B

$ 04_02_validate --help
A simple to use, efficient, and full-featured Command Line Argument Parser

Usage: 04_02_validate[EXE] <PORT>

Arguments:
  <PORT>  Network port to use

Options:
  -h, --help     Print help information
  -V, --version  Print version information

$ 04_02_validate 22
PORT = 22

$ 04_02_validate foobar
? failed
error: Invalid value "foobar" for '<PORT>': `foobar` isn't a port number

For more information try --help

$ 04_02_validate 0
? failed
error: Invalid value "0" for '<PORT>': Port not in range 1-65535

For more information try --help