Enum BacktrackingControlVerb 

pub enum BacktrackingControlVerb {
    Fail,
    Accept,
    Commit,
    Skip,
    Prune,
}

Type of backtracking control verb which affects how backtracking will behave. See https://www.regular-expressions.info/verb.html

Variants

Fail

Fail this branch immediately

Accept

Treat match so far as successful overall match

Commit

Abort the entire match on failure

Skip

Restart the entire match attempt at the current position

Prune

Prune all backtracking states and restart the entire match attempt at the next position

Trait Implementations

impl Clone for BacktrackingControlVerb

fn clone(&self) -> BacktrackingControlVerb

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BacktrackingControlVerb

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

Formats the value using the given formatter.

impl PartialEq for BacktrackingControlVerb

fn eq(&self, other: &BacktrackingControlVerb) -> 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 BacktrackingControlVerb

impl Eq for BacktrackingControlVerb

impl StructuralPartialEq for BacktrackingControlVerb