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Fixed app.set_failure_message(...) -> app.failure_message(...) (#1018)

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Christian Asmussen 2024-03-12 12:43:38 -04:00 committed by GitHub
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book/chapters/subcommands.md
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@ -16,11 +16,10 @@ can do with an `App`, however.
You are given a lot of control the help output. You can set a footer with You are given a lot of control the help output. You can set a footer with
`app.footer("My Footer")`. You can replace the default help print when a `app.footer("My Footer")`. You can replace the default help print when a
`ParseError` is thrown with `ParseError` is thrown with `app.failure_message(CLI::FailureMessage::help)`.
`app.set_failure_message(CLI::FailureMessage::help)`. The default is The default is `CLI:::FailureMessage::simple`, and you can easily define a new
`CLI:::FailureMessage::simple`, and you can easily define a new one. Just make a one. Just make a (lambda) function that takes an App pointer and a reference to
(lambda) function that takes an App pointer and a reference to an error code an error code (even if you don't use them), and returns a string.
(even if you don't use them), and returns a string.
## Adding a subcommand ## Adding a subcommand