Struct PatternManager 

pub struct PatternManager { /* private fields */ }

Manager for before/after patterns.

On each poll of an expect operation, before patterns are checked before the explicit patterns (highest priority), and after patterns are checked after the explicit patterns fail to match (a fallback). This mirrors Tcl expect’s expect_before/expect_after semantics; after patterns do not run once an explicit pattern has matched.

Implementations

impl PatternManager

pub fn new() -> Self

Create a new pattern manager.

pub fn add_before(&mut self, pattern: PersistentPattern) -> String

Add a before pattern and return its ID.

pub fn add_after(&mut self, pattern: PersistentPattern) -> String

Add an after pattern and return its ID.

pub fn remove_before(&mut self, id: &str) -> Option<PersistentPattern>

Remove a before pattern by ID.

pub fn remove_after(&mut self, id: &str) -> Option<PersistentPattern>

Remove an after pattern by ID.

pub fn get_before(&self, id: &str) -> Option<&PersistentPattern>

Get a before pattern by ID.

pub fn get_before_mut(&mut self, id: &str) -> Option<&mut PersistentPattern>

Get a mutable before pattern by ID.

pub fn get_after(&self, id: &str) -> Option<&PersistentPattern>

Get an after pattern by ID.

pub fn get_after_mut(&mut self, id: &str) -> Option<&mut PersistentPattern>

Get a mutable after pattern by ID.

pub fn check_before( &self, buffer: &str, ) -> Option<(String, HandlerAction, Pattern)>

Check before patterns against the buffer.

Returns (id, action, matched_pattern) for the first matching pattern, or None if none match. The matched pattern is returned so the caller can consume the triggering match from its buffer (via Matcher) and avoid re-firing on the next poll.

pub fn check_after( &self, buffer: &str, ) -> Option<(String, HandlerAction, Pattern)>

Check after patterns against the buffer.

Returns (id, action, matched_pattern) for the first matching pattern, or None if none match. See Self::check_before for why the pattern is returned.

pub fn before_pattern_set(&self) -> PatternSet

Get all before patterns as a PatternSet for matching.

pub fn after_pattern_set(&self) -> PatternSet

Get all after patterns as a PatternSet for matching.

pub fn clear_before(&mut self)

Clear all before patterns.

pub fn clear_after(&mut self)

Clear all after patterns.

pub fn clear_all(&mut self)

Clear all patterns.

pub fn before_count(&self) -> usize

Get the number of before patterns.

pub fn after_count(&self) -> usize

Get the number of after patterns.

Trait Implementations

impl Debug for PatternManager

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

Formats the value using the given formatter.

impl Default for PatternManager

fn default() -> PatternManager

Returns the “default value” for a type.