pub struct NoCaptures(/* private fields */);
Expand description

NoCaptures provides an always-empty implementation of the Captures trait.

This type is useful for implementations of Matcher that don’t support capturing groups.

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impl NoCaptures

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pub fn new() -> NoCaptures

Create an empty set of capturing groups.

Trait Implementations§

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impl Captures for NoCaptures

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fn len(&self) -> usize

Return the total number of capturing groups. This includes capturing groups that have not matched anything.
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fn get(&self, _: usize) -> Option<Match>

Return the capturing group match at the given index. If no match of that capturing group exists, then this returns None. Read more
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fn is_empty(&self) -> bool

Returns true if and only if these captures are empty. This occurs when len is 0. Read more
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fn interpolate<F>( &self, name_to_index: F, haystack: &[u8], replacement: &[u8], dst: &mut Vec<u8> )where F: FnMut(&str) -> Option<usize>,

Expands all instances of $name in replacement to the corresponding capture group name, and writes them to the dst buffer given. Read more
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impl Clone for NoCaptures

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fn clone(&self) -> NoCaptures

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 NoCaptures

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

Formats the value using the given formatter. Read more

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Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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, U> Into<U> for Twhere 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 Twhere 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 Twhere 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 Twhere 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.