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Deduplicator

Struct Deduplicator 

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pub struct Deduplicator { /* private fields */ }
Expand description

LRU-based content deduplicator.

Tracks seen text fragments to detect duplicates during processing.

§Example

use html_cleaning::dedup::Deduplicator;

let mut dedup = Deduplicator::new(100);

assert!(!dedup.is_duplicate("first occurrence"));
assert!(!dedup.is_duplicate("first occurrence")); // seen once
assert!(!dedup.is_duplicate("first occurrence")); // seen twice
assert!(dedup.is_duplicate("first occurrence"));  // now duplicate (>2)

Implementations§

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impl Deduplicator

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pub fn new(capacity: usize) -> Self

Create with specified capacity.

Uses default threshold of 2 (text seen more than 2 times is duplicate).

§Arguments
  • capacity - Maximum number of entries to track
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pub fn with_threshold(capacity: usize, threshold: i32) -> Self

Create with capacity and custom duplicate threshold.

§Arguments
  • capacity - Maximum entries
  • threshold - Number of times text can appear before considered duplicate
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pub fn is_duplicate(&mut self, text: &str) -> bool

Check if text is duplicate, adding to cache.

Returns true if text has been seen more than threshold times.

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pub fn check(&self, text: &str) -> bool

Check without adding to cache.

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pub fn has_seen(&self, text: &str) -> bool

Check if text has been seen (regardless of count).

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pub fn clear(&mut self)

Clear the cache.

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pub fn len(&self) -> usize

Get current cache size.

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pub fn is_empty(&self) -> bool

Check if cache is empty.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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impl<T> Borrow<T> for T
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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.