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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.

Variants

All

Enables all optional operators.

Complement

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

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

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'

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'

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

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Formats the value using the given formatter. Read more

Converts to this type from the input type.

Converts to this type from the input type.

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

Restrict a value to a certain interval. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

This method returns an ordering between self and other values if one exists. Read more

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

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

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

Converts the given value to a String. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.