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ReferenceExtractorRegistry

rsynko_memory

Struct ReferenceExtractorRegistry 

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

Interprets an ordered extractor catalog in memory.

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impl ReferenceExtractorRegistry

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pub fn push(&mut self, extractor: ReferenceExtractor)

Appends an extractor at the next catalog selection position.

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pub fn applications(&self) -> Vec<ExtractorKey>

Observes extractor applications in application order.

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impl Debug for ReferenceExtractorRegistry

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

Formats the value using the given formatter. Read more
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impl Default for ReferenceExtractorRegistry

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl ExtractionApplyAlg for ReferenceExtractorRegistry

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type Error = ReferenceExtractionError

Denotes an extractor-specific failure.
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fn extract_with( &self, extractor: &ExtractorKey, _url: &str, ) -> Result<Extraction, Self::Error>

Applies a selected extractor to an accepted URL. Read more
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impl ExtractionCatalogAlg for ReferenceExtractorRegistry

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fn extractor_keys(&self) -> impl Iterator<Item = &ExtractorKey>

Observes extractor keys in selection order.
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fn extractor_accepts(&self, extractor: &ExtractorKey, url: &str) -> bool

Observes whether one extractor accepts an input URL.
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impl MediaSorts for ReferenceExtractorRegistry

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type Value = ()

Represents one metadata value.
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type Metadata = ()

Represents one metadata record.
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type Format = ()

Represents one alternative representation of a media item.
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type Artifact = ()

Represents one produced artifact.
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type Media = ()

Represents one fully described media item.
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type Extraction = Extraction

Represents one extraction result.
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type Extractor = ExtractorKey

Represents one extractor identity.
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type Predicate = ()

Represents one predicate over a format.
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type Selection = ()

Represents one format-selection program.
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type Output = ()

Represents one portable output name.

Auto Trait Implementations§

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<This, Extractor, Extraction> ExtractionExt<This, Extractor, Extraction> for This
where This: ExtractionCatalogAlg<Extractor = Extractor, Extractor = Extractor, Extraction = Extraction> + ExtractionApplyAlg,

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fn choose_extractor(&self, url: &str) -> Option<&Extractor>

Chooses the first extractor accepting the URL.

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fn extract_url( &self, url: &str, ) -> Result<Extraction, ExtractUrlError<<This as ExtractionApplyAlg>::Error>>

Extracts a URL through the first accepting extractor.

§Errors

Returns ExtractUrlError::Unsupported when no extractor accepts the URL, or wraps the selected extractor’s failure in ExtractUrlError::Extractor.

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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<This> GaugeLaws<This> for This

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fn gauge_laws(&self) -> Result<(), Error>

Checks that a gauge states a share without claiming more resolution than it has.

The laws checked are:

  1. a gauge occupies its stated width whatever share it states;
  2. no share is stated as filled before it is reached, and none is stated twice;
  3. nothing stated is nothing filled, and everything stated fills the whole track;
  4. the stated text occupies exactly one cell per counted cell.
§Errors

Returns the first violated law.

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<This> IntoExt<This> for This

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fn to<R>(self) -> R
where This: Into<R>,

A version of Into::into function that can be used to explicitly specify the target conversion type.

use alux_sdk::*;
// `Into` requires context to infer the type,
let _: i64 = Into::into(42_i8);
// The opposite `From` requires context to infer the type,
let _: i64 = From::from(42_i8);
// `.to()` can be used in the same way as a postfix function (the same as `.into()`),
let _: i64 = 42_i8.to();
// but also with the type specified explicitly.
let _ = 42_i8.to::<i64>();
// Especially useful to chain multiple conversions inline.
let _: i64 = 42_i8.to::<i16>().to::<i32>().into();
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impl<This> IntoIteratorExt<This> for This

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fn try_collect_vec<T, E>(self) -> Result<Vec<T>, E>
where This: Iterator<Item = Result<T, E>>,

A variant of the try_collect and collect_vec combined function from the Itertools library. The materialized value is a Vec inside a Result object.

Returns the first error without collecting later values.

use alux_sdk::*;

let values = [Ok::<_, &str>(1), Ok(2), Ok(3)]
    .into_iter()
    .try_collect_vec();

assert_eq!(values, Ok(vec![1, 2, 3]));
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fn collect_exact<T>(self, n: usize) -> Option<Vec<T>>
where This: Iterator<Item = T>,

Takes exactly n elements from the iterator.

Returns Some(Vec<T>) if the iterator yields exactly n elements, otherwise returns None.

use alux_sdk::*;

let v = [1, 2, 3];

assert_eq!(v.iter().copied().collect_exact(3), Some(vec![1, 2, 3]));
assert_eq!(v.iter().copied().collect_exact(4), None);
assert_eq!(v.iter().copied().collect_exact(2), None);
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fn try_unzip<A, B, E>(self) -> Result<(Vec<A>, Vec<B>), E>
where This: IntoIterator<Item = Result<(A, B), E>>,

Efficiently splits an iterator of Result<(A, B), E> into two Vecs, short-circuiting on error.

Consumes the iterator, collecting all A elements into one vector and all B elements into another, without first allocating an intermediate vector of tuples. Returns the tuple (Vec<A>, Vec<B>) on success, or the first error encountered.

use alux_sdk::*;

let input = vec![Ok((1, "x")), Ok((2, "y"))];
let (xs, ys) = input.try_unzip::<_, _, ()>().unwrap();

assert_eq!(xs, vec![1, 2]);
assert_eq!(ys, vec!["x", "y"]);
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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.