Struct Flag

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pub struct Flag<'a> {
    pub short: &'a str,
    pub long: &'a str,
    pub description: &'a str,
}

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§short: &'a str§long: &'a str§description: &'a str

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impl Flag<'_>

Extracts value out of a flag which can have an assignment

§Examples

use patchy::flags::Flag;

let my_flag = Flag {
    short: "-r=",
    long: "--remote-name=",
    description: "some flag",
};

let long_version = my_flag.extract_from_arg("--remote-name=abc");
let short_version = my_flag.extract_from_arg("-r=abcdefg");
let invalid = my_flag.extract_from_arg("-m=abcdefg");

assert_eq!(long_version, Some("abc".into()));
assert_eq!(short_version, Some("abcdefg".into()));
assert_eq!(invalid, None);
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pub fn is_in(&self, args: &CommandArgs) -> bool

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pub fn extract_from_arg(&self, arg: &str) -> Option<String>

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impl Display for Flag<'_>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats a flag into a colored format with a description, printable to the terminal

Auto Trait Implementations§

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impl<'a> Freeze for Flag<'a>

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impl<'a> RefUnwindSafe for Flag<'a>

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impl<'a> Send for Flag<'a>

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impl<'a> Sync for Flag<'a>

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impl<'a> Unpin for Flag<'a>

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impl<'a> UnwindSafe for Flag<'a>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T> ToStringFallible for T
where T: Display,

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fn try_to_string(&self) -> Result<String, TryReserveError>

ToString::to_string, but without panic on OOM.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ErasedDestructor for T
where T: 'static,