Enum StringExpression 

pub enum StringExpression {
    Pattern(Box<StringPattern>),
    NotIn(Box<Self>),
    Union(Box<Self>, Box<Self>),
    Intersection(Box<Self>, Box<Self>),
}

AST-level representation of the string matcher expression.

Variants

Pattern(Box<StringPattern>)

Matches pattern.

NotIn(Box<Self>)

Matches anything other than the expression.

Union(Box<Self>, Box<Self>)

Matches one of the expressions.

Intersection(Box<Self>, Box<Self>)

Matches both expressions.

Implementations

impl StringExpression

pub fn none() -> Self

Expression that matches nothing.

pub fn all() -> Self

Expression that matches everything.

pub fn pattern(pattern: StringPattern) -> Self

Expression that matches the given pattern.

pub fn exact(src: impl Into<String>) -> Self

Expression that matches strings exactly.

pub fn substring(src: impl Into<String>) -> Self

Expression that matches substrings.

pub fn negated(self) -> Self

Expression that matches anything other than this expression.

pub fn union(self, other: Self) -> Self

Expression that matches self or other (or both).

pub fn union_all(expressions: Vec<Self>) -> Self

Expression that matches any of the given expressions.

pub fn intersection(self, other: Self) -> Self

Expression that matches both self and other.

pub fn to_matcher(&self) -> StringMatcher

Transforms the expression tree to matcher object.

Trait Implementations

impl Clone for StringExpression

fn clone(&self) -> StringExpression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StringExpression

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

Formats the value using the given formatter.