Enum RegexpFlag

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

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

impl Clone for RegexpFlag

fn clone(&self) -> RegexpFlag

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RegexpFlag

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

Formats the value using the given formatter.

impl Display for RegexpFlag

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

Formats the value using the given formatter.

impl From<RegexpFlag> for &'static str

fn from(value: RegexpFlag) -> Self

Converts to this type from the input type.

impl From<RegexpFlag> for String

fn from(value: RegexpFlag) -> Self

Converts to this type from the input type.

impl Ord for RegexpFlag

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for RegexpFlag

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for RegexpFlag

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

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

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for RegexpFlag

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

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for RegexpFlag

impl Eq for RegexpFlag

impl StructuralPartialEq for RegexpFlag