Struct grep_matcher::ByteSet

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

A set of bytes.

In this crate, byte sets are used to express bytes that can never appear anywhere in a match for a particular implementation of the Matcher trait. Specifically, if such a set can be determined, then it’s possible for callers to perform additional operations on the basis that certain bytes may never match.

For example, if a search is configured to possibly produce results that span multiple lines but a caller provided pattern can never match across multiple lines, then it may make sense to divert to more optimized line oriented routines that don’t need to handle the multi-line match case.

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impl ByteSet

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pub fn empty() -> ByteSet

Create an empty set of bytes.

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pub fn full() -> ByteSet

Create a full set of bytes such that every possible byte is in the set returned.

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pub fn add(&mut self, byte: u8)

Add a byte to this set.

If the given byte already belongs to this set, then this is a no-op.

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pub fn add_all(&mut self, start: u8, end: u8)

Add an inclusive range of bytes.

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pub fn remove(&mut self, byte: u8)

Remove a byte from this set.

If the given byte is not in this set, then this is a no-op.

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pub fn remove_all(&mut self, start: u8, end: u8)

Remove an inclusive range of bytes.

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pub fn contains(&self, byte: u8) -> bool

Return true if and only if the given byte is in this set.

Trait Implementations§

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impl Clone for ByteSet

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fn clone(&self) -> ByteSet

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 ByteSet

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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.