pub enum RegexpFlag {
    All,
    Complement,
    Interval,
    Intersection,
    Anystring,
}
Expand description

You can use the flags parameter to enable more optional operators for Lucene’s regular expression engine.

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All

Enables all optional operators.

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Complement

Enables the ~ operator. You can use ~ to negate the shortest following pattern. For example:

a~bc # matches 'adc' and 'aec' but not 'abc'

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Interval

Enables the <> operators. You can use <> to match a numeric range. For example:

foo<1-100> # matches 'foo1', 'foo2' ... 'foo99', 'foo100' foo<01-100> # matches 'foo01', 'foo02' ... 'foo99', 'foo100'

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Intersection

Enables the & operator, which acts as an AND operator. The match will succeed if patterns on both the left side AND the right side matches. For example:

aaa.+&.+bbb # matches 'aaabbb'

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Anystring

Enables the @ operator. You can use @ to match any entire string.

You can combine the @ operator with & and ~ operators to create an “everything except” logic. For example:

@&~(abc.+) # matches everything except terms beginning with 'abc'

Trait Implementations§

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impl Clone for RegexpFlag

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fn clone(&self) -> RegexpFlag

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 RegexpFlag

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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 RegexpFlag

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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 From<RegexpFlag> for &'static str

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fn from(value: RegexpFlag) -> Self

Converts to this type from the input type.
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impl From<RegexpFlag> for String

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fn from(value: RegexpFlag) -> Self

Converts to this type from the input type.
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impl Ord for RegexpFlag

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fn cmp(&self, other: &RegexpFlag) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl PartialEq<RegexpFlag> for RegexpFlag

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fn eq(&self, other: &RegexpFlag) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd<RegexpFlag> for RegexpFlag

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fn partial_cmp(&self, other: &RegexpFlag) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Serialize for RegexpFlag

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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>where S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Copy for RegexpFlag

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impl Eq for RegexpFlag

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impl StructuralEq for RegexpFlag

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impl StructuralPartialEq for RegexpFlag

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> ToString for Twhere 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 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.