Module clap::_features

Available on crate feature unstable-doc only.

Expand description

std: Not Currently Used. Placeholder for supporting no_std environments in a backwards compatible manner.
color: Turns on colored error messages.
help: Auto-generate help output
usage: Auto-generate usage
error-context: Include contextual information for errors (which arg failed, etc)
suggestions: Turns on the Did you mean '--myoption'? feature for when users make typos.

deprecated: Guided experience to prepare for next breaking release (at different stages of development, this may become default)
derive: Enables the custom derive (i.e. #[derive(Parser)]). Without this you must use one of the other methods of creating a clap CLI listed above.
cargo: Turns on macros that read values from CARGO_* environment variables.
env: Turns on the usage of environment variables during parsing.
unicode: Turns on support for unicode characters (including emoji) in arguments and help messages.
wrap_help: Turns on the help text wrapping feature, based on the terminal size.
string: Allow runtime generated strings (e.g. with Str).

Warning: These may contain breaking changes between minor releases.