Enum aho_corasick::util::search::StartKind

pub enum StartKind {
    Both,
    Unanchored,
    Anchored,
}

The kind of anchored starting configurations to support in an Aho-Corasick searcher.

Depending on which searcher is used internally by AhoCorasick, supporting both unanchored and anchored searches can be quite costly. For this reason, AhoCorasickBuilder::start_kind can be used to configure whether your searcher supports unanchored, anchored or both kinds of searches.

This searcher configuration knob works in concert with the search time configuration Input::anchored. Namely, if one requests an unsupported anchored mode, then the search will either panic or return an error, depending on whether you’re using infallible or fallibe APIs, respectively.

AhoCorasick by default only supports unanchored searches.

Variants

Both

Support both anchored and unanchored searches.

Unanchored

Support only unanchored searches. Requesting an anchored search will return an error in fallible APIs and panic in infallible APIs.

Anchored

Support only anchored searches. Requesting an unanchored search will return an error in fallible APIs and panic in infallible APIs.

Trait Implementations

impl Clone for StartKind

fn clone(&self) -> StartKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StartKind

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

Formats the value using the given formatter.

impl Default for StartKind

fn default() -> StartKind

Returns the “default value” for a type.

impl PartialEq for StartKind

fn eq(&self, other: &StartKind) -> 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 Copy for StartKind

impl Eq for StartKind

impl StructuralPartialEq for StartKind