pub struct RegexCaptures { /* private fields */ }
Expand description

Represents the match offsets of each capturing group in a match.

The first, or 0th capture group, always corresponds to the entire match and is guaranteed to be present when a match occurs. The next capture group, at index 1, corresponds to the first capturing group in the regex, ordered by the position at which the left opening parenthesis occurs.

Note that not all capturing groups are guaranteed to be present in a match. For example, in the regex, (?P<foo>\w)|(?P<bar>\W), only one of foo or bar will ever be set in any given match.

In order to access a capture group by name, you’ll need to first find the index of the group using the corresponding matcher’s capture_index method, and then use that index with RegexCaptures::get.

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impl Captures for RegexCaptures

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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, i: 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, Global> )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 RegexCaptures

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fn clone(&self) -> RegexCaptures

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 RegexCaptures

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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.