Struct ARG_OUTPUT 

pub struct ARG_OUTPUT { /* private fields */ }

Methods from Deref<Target = Arg>

pub fn get_id(&self) -> &Id

Get the name of the argument

pub fn get_help(&self) -> Option<&StyledStr>

Get the help specified for this argument, if any

pub fn get_long_help(&self) -> Option<&StyledStr>

Get the long help specified for this argument, if any

Examples

let arg = Arg::new("foo").long_help("long help");
assert_eq!(Some("long help".to_owned()), arg.get_long_help().map(|s| s.to_string()));

pub fn get_display_order(&self) -> usize

Get the placement within help

pub fn get_help_heading(&self) -> Option<&str>

Get the help heading specified for this argument, if any

pub fn get_short(&self) -> Option<char>

Get the short option name for this argument, if any

pub fn get_visible_short_aliases(&self) -> Option<Vec<char>>

Get visible short aliases for this argument, if any

pub fn get_all_short_aliases(&self) -> Option<Vec<char>>

Get all short aliases for this argument, if any, both visible and hidden.

pub fn get_short_and_visible_aliases(&self) -> Option<Vec<char>>

Get the short option name and its visible aliases, if any

pub fn get_long(&self) -> Option<&str>

Get the long option name for this argument, if any

pub fn get_visible_aliases(&self) -> Option<Vec<&str>>

Get visible aliases for this argument, if any

pub fn get_all_aliases(&self) -> Option<Vec<&str>>

Get all aliases for this argument, if any, both visible and hidden.

pub fn get_long_and_visible_aliases(&self) -> Option<Vec<&str>>

Get the long option name and its visible aliases, if any

pub fn get_aliases(&self) -> Option<Vec<&str>>

Get hidden aliases for this argument, if any

pub fn get_possible_values(&self) -> Vec<PossibleValue>

Get the names of possible values for this argument. Only useful for user facing applications, such as building help messages or man files

pub fn get_value_names(&self) -> Option<&[Str]>

Get the names of values for this argument.

pub fn get_num_args(&self) -> Option<ValueRange>

Get the number of values for this argument.

pub fn get_value_delimiter(&self) -> Option<char>

Get the delimiter between multiple values

pub fn get_value_terminator(&self) -> Option<&Str>

Get the value terminator for this argument. The value_terminator is a value that terminates parsing of multi-valued arguments.

pub fn get_index(&self) -> Option<usize>

Get the index of this argument, if any

pub fn get_value_hint(&self) -> ValueHint

Get the value hint of this argument

pub fn get_default_values(&self) -> &[OsStr]

Get the default values specified for this argument, if any

Examples

let arg = Arg::new("foo").default_value("default value");
assert_eq!(arg.get_default_values(), &["default value"]);

pub fn is_positional(&self) -> bool

Checks whether this argument is a positional or not.

Examples

let arg = Arg::new("foo");
assert_eq!(arg.is_positional(), true);

let arg = Arg::new("foo").long("foo");
assert_eq!(arg.is_positional(), false);

pub fn is_required_set(&self) -> bool

Reports whether Arg::required is set

pub fn is_allow_hyphen_values_set(&self) -> bool

Report whether Arg::allow_hyphen_values is set

pub fn is_allow_negative_numbers_set(&self) -> bool

Report whether Arg::allow_negative_numbers is set

pub fn get_action(&self) -> &ArgAction

Behavior when parsing the argument

pub fn get_value_parser(&self) -> &ValueParser

Configured parser for argument values

Example

let cmd = clap::Command::new("raw")
    .arg(
        clap::Arg::new("port")
            .value_parser(clap::value_parser!(usize))
    );
let value_parser = cmd.get_arguments()
    .find(|a| a.get_id() == "port").unwrap()
    .get_value_parser();
println!("{value_parser:?}");

pub fn is_global_set(&self) -> bool

Report whether Arg::global is set

pub fn is_next_line_help_set(&self) -> bool

Report whether Arg::next_line_help is set

pub fn is_hide_set(&self) -> bool

Report whether Arg::hide is set

pub fn is_hide_default_value_set(&self) -> bool

Report whether Arg::hide_default_value is set

pub fn is_hide_possible_values_set(&self) -> bool

Report whether Arg::hide_possible_values is set

pub fn is_hide_short_help_set(&self) -> bool

Report whether Arg::hide_short_help is set

pub fn is_hide_long_help_set(&self) -> bool

Report whether Arg::hide_long_help is set

pub fn is_require_equals_set(&self) -> bool

Report whether Arg::require_equals is set

pub fn is_exclusive_set(&self) -> bool

Reports whether Arg::exclusive is set

pub fn is_trailing_var_arg_set(&self) -> bool

Report whether Arg::trailing_var_arg is set

pub fn is_last_set(&self) -> bool

Reports whether Arg::last is set

pub fn is_ignore_case_set(&self) -> bool

Reports whether Arg::ignore_case is set

Trait Implementations

impl Deref for ARG_OUTPUT

type Target = Arg

The resulting type after dereferencing.

fn deref(&self) -> &Arg

Dereferences the value.

impl LazyStatic for ARG_OUTPUT