#[non_exhaustive]
pub enum ParseError {
Show 16 variants GeneralParseError(String), UnclosedOpenParen, InvalidRepeat, RecursionExceeded, TrailingBackslash, InvalidEscape(String), UnclosedUnicodeName, InvalidHex, InvalidCodepointValue, InvalidClass, UnknownFlag(String), NonUnicodeUnsupported, InvalidBackref, TargetNotRepeatable, InvalidGroupName, InvalidGroupNameBackref(String),
}
Expand description

An error for the result of parsing a regex pattern.

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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GeneralParseError(String)

General parsing error

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UnclosedOpenParen

Opening parenthesis without closing parenthesis, e.g. (a|b

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InvalidRepeat

Invalid repeat syntax

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RecursionExceeded

Pattern too deeply nested

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TrailingBackslash

Backslash without following character

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InvalidEscape(String)

Invalid escape

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UnclosedUnicodeName

Unicode escape not closed

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InvalidHex

Invalid hex escape

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InvalidCodepointValue

Invalid codepoint for hex or unicode escape

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InvalidClass

Invalid character class

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UnknownFlag(String)

Unknown group flag

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NonUnicodeUnsupported

Disabling Unicode not supported

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InvalidBackref

Invalid back reference

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TargetNotRepeatable

Quantifier on lookaround or other zero-width assertion

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InvalidGroupName

Couldn’t parse group name

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InvalidGroupNameBackref(String)

Invalid group id in escape sequence

Trait Implementations§

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impl Clone for ParseError

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fn clone(&self) -> ParseError

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 ParseError

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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 Display for ParseError

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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 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> 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> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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.