custom-bool.md

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Example of overriding the magic bool behavior

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

Usage: custom-bool[EXE] [OPTIONS] --foo <FOO> <BOOM>

Arguments:
  <BOOM>  [possible values: true, false]

Options:
      --foo <FOO>  [possible values: true, false]
      --bar <BAR>  [default: false]
  -h, --help       Print help information
  -V, --version    Print version information

$ custom-bool
? failed
error: The following required arguments were not provided:
  --foo <FOO>
  <BOOM>

Usage: custom-bool[EXE] --foo <FOO> <BOOM>

For more information try --help

$ custom-bool --foo true false
[examples/derive_ref/custom-bool.rs:31] opt = Opt {
    foo: true,
    bar: false,
    boom: false,
}

$ custom-bool --foo true --bar true false
[examples/derive_ref/custom-bool.rs:31] opt = Opt {
    foo: true,
    bar: true,
    boom: false,
}