regex_syntax::hir

Enum Dot

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#[non_exhaustive]
pub enum Dot { AnyChar, AnyByte, AnyCharExcept(char), AnyCharExceptLF, AnyCharExceptCRLF, AnyByteExcept(u8), AnyByteExceptLF, AnyByteExceptCRLF, }
Expand description

A type describing the different flavors of ..

This type is meant to be used with Hir::dot, which is a convenience routine for building HIR values derived from the . regex.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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AnyChar

Matches the UTF-8 encoding of any Unicode scalar value.

This is equivalent to (?su:.) and also \p{any}.

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AnyByte

Matches any byte value.

This is equivalent to (?s-u:.) and also (?-u:[\x00-\xFF]).

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AnyCharExcept(char)

Matches the UTF-8 encoding of any Unicode scalar value except for the char given.

This is equivalent to using (?u-s:.) with the line terminator set to a particular ASCII byte. (Because of peculiarities in the regex engines, a line terminator must be a single byte. It follows that when UTF-8 mode is enabled, this single byte must also be a Unicode scalar value. That is, ti must be ASCII.)

(This and AnyCharExceptLF both exist because of legacy reasons. AnyCharExceptLF will be dropped in the next breaking change release.)

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AnyCharExceptLF

Matches the UTF-8 encoding of any Unicode scalar value except for \n.

This is equivalent to (?u-s:.) and also [\p{any}--\n].

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AnyCharExceptCRLF

Matches the UTF-8 encoding of any Unicode scalar value except for \r and \n.

This is equivalent to (?uR-s:.) and also [\p{any}--\r\n].

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AnyByteExcept(u8)

Matches any byte value except for the u8 given.

This is equivalent to using (?-us:.) with the line terminator set to a particular ASCII byte. (Because of peculiarities in the regex engines, a line terminator must be a single byte. It follows that when UTF-8 mode is enabled, this single byte must also be a Unicode scalar value. That is, ti must be ASCII.)

(This and AnyByteExceptLF both exist because of legacy reasons. AnyByteExceptLF will be dropped in the next breaking change release.)

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AnyByteExceptLF

Matches any byte value except for \n.

This is equivalent to (?-su:.) and also (?-u:[[\x00-\xFF]--\n]).

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AnyByteExceptCRLF

Matches any byte value except for \r and \n.

This is equivalent to (?R-su:.) and also (?-u:[[\x00-\xFF]--\r\n]).

Trait Implementations§

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impl Clone for Dot

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fn clone(&self) -> Dot

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 Dot

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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 Dot

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fn eq(&self, other: &Dot) -> 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 Dot

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impl Eq for Dot

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impl StructuralPartialEq for Dot

Auto Trait Implementations§

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impl Freeze for Dot

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impl RefUnwindSafe for Dot

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impl Send for Dot

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impl Sync for Dot

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impl Unpin for Dot

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impl UnwindSafe for Dot

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.