palex

Enum TokenKind

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pub enum TokenKind {
    NoDash,
    OneDash,
    TwoDashes,
    AfterOneDash,
    AfterEquals,
}
Expand description

The kind of the current token.

This enum acts as the state of the currently parsed argument; this is necessary because an argument can consist of multiple tokens.

Variants§

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NoDash

An argument that doesn’t start with dashes, e.g. program.

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OneDash

An argument that starts with exactly 1 dash, e.g. -foo, -V, -h=config.

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TwoDashes

An argument that starts with 2 or more dashes, e.g. --version or --help=config.

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AfterOneDash

An option or value of a single-dash argument, after an option has been eaten.

§Example when parsing -abcd=efg,hij
abcd=efg    # OneDash
 bcd=efg    # AfterOneDash
  cd=efg    # AfterOneDash
     efg    # AfterEquals
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AfterEquals

A value of an argument after the =, after the name of the argument has been eaten.

§Example when parsing --abcd=efg,hij
abcd=efg,hij    # TwoDashes
     efg,hij    # AfterEquals
         hij    # AfterEquals

Trait Implementations§

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impl Clone for TokenKind

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fn clone(&self) -> TokenKind

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for TokenKind

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

Formats the value using the given formatter. Read more
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impl PartialEq for TokenKind

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fn eq(&self, other: &TokenKind) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for TokenKind

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impl Eq for TokenKind

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impl StructuralPartialEq for TokenKind

Auto Trait Implementations§

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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, 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.