Struct rustfst::algorithms::closure::ClosureFst
source · pub struct ClosureFst<W: Semiring, F: Fst<W> + 'static>(_, _);Expand description
Computes the concatenative closure. This version is a delayed FST. If an FST transduces string x to y with weight a, then its closure transduces x to y with weight a, xx to yy with weight Times(a, a), xxx to yyy with weight Times(Times(a, a), a), etc. If closure_type == CLOSURE_STAR, then the empty string is transduced to itself with weight Weight::One() as well.
Implementations§
source§impl<W, F> ClosureFst<W, F>where
W: Semiring,
F: MutableFst<W> + AllocableFst<W>,
impl<W, F> ClosureFst<W, F>where W: Semiring, F: MutableFst<W> + AllocableFst<W>,
pub fn new(fst: F, closure_type: ClosureType) -> Result<Self>
sourcepub fn compute<F2: MutableFst<W> + AllocableFst<W>>(&self) -> Result<F2>
pub fn compute<F2: MutableFst<W> + AllocableFst<W>>(&self) -> Result<F2>
Turns the Lazy FST into a static one.
Trait Implementations§
source§impl<W, F> CoreFst<W> for ClosureFst<W, F>where
W: Semiring,
F: Fst<W>,
impl<W, F> CoreFst<W> for ClosureFst<W, F>where W: Semiring, F: Fst<W>,
source§fn start(&self) -> Option<StateId>
fn start(&self) -> Option<StateId>
Returns the ID of the start state of the wFST if it exists else none. Read more
source§fn final_weight(&self, state_id: StateId) -> Result<Option<W>>
fn final_weight(&self, state_id: StateId) -> Result<Option<W>>
Retrieves the final weight of a state (if the state is a final one). Read more
source§unsafe fn final_weight_unchecked(&self, state_id: StateId) -> Option<W>
unsafe fn final_weight_unchecked(&self, state_id: StateId) -> Option<W>
Retrieves the final weight of a state (if the state is a final one). Read more
source§fn num_trs(&self, s: StateId) -> Result<usize>
fn num_trs(&self, s: StateId) -> Result<usize>
Number of trs leaving a specific state in the wFST. Read more
source§unsafe fn num_trs_unchecked(&self, s: StateId) -> usize
unsafe fn num_trs_unchecked(&self, s: StateId) -> usize
Number of trs leaving a specific state in the wFST. Read more
source§fn get_trs(&self, state_id: StateId) -> Result<Self::TRS>
fn get_trs(&self, state_id: StateId) -> Result<Self::TRS>
Get an iterator on the transitions leaving state
state.source§unsafe fn get_trs_unchecked(&self, state_id: StateId) -> Self::TRS
unsafe fn get_trs_unchecked(&self, state_id: StateId) -> Self::TRS
Get an iterator on the transitions leaving state
state. Read moresource§fn properties(&self) -> FstProperties
fn properties(&self) -> FstProperties
Retrieve the
FstProperties stored in the Fst. As a result, all the properties returned
are verified by the Fst but some other properties might be true as well despite the flag
not being set.source§fn num_input_epsilons(&self, state: StateId) -> Result<usize>
fn num_input_epsilons(&self, state: StateId) -> Result<usize>
Returns the number of trs with epsilon input labels leaving a state. Read more
source§fn num_output_epsilons(&self, state: StateId) -> Result<usize>
fn num_output_epsilons(&self, state: StateId) -> Result<usize>
Returns the number of trs with epsilon output labels leaving a state. Read more
source§fn is_final(&self, state_id: StateId) -> Result<bool>
fn is_final(&self, state_id: StateId) -> Result<bool>
Returns whether or not the state with identifier passed as parameters is a final state. Read more
source§unsafe fn is_final_unchecked(&self, state: StateId) -> bool
unsafe fn is_final_unchecked(&self, state: StateId) -> bool
Returns whether or not the state with identifier passed as parameters is a final state. Read more
source§fn is_start(&self, state_id: StateId) -> bool
fn is_start(&self, state_id: StateId) -> bool
Check whether a state is the start state or not.
source§fn properties_with_mask(&self, mask: FstProperties) -> FstProperties
fn properties_with_mask(&self, mask: FstProperties) -> FstProperties
Apply a mask to the
FstProperties returned.source§fn properties_check(&self, props_known: FstProperties) -> Result<FstProperties>
fn properties_check(&self, props_known: FstProperties) -> Result<FstProperties>
Retrieve the
FstProperties in the Fst and check that all the
properties in props_known are known (not the same as true). If not an error is returned. Read moresource§impl<W, F> Fst<W> for ClosureFst<W, F>where
W: Semiring,
F: Fst<W> + 'static,
impl<W, F> Fst<W> for ClosureFst<W, F>where W: Semiring, F: Fst<W> + 'static,
source§fn input_symbols(&self) -> Option<&Arc<SymbolTable>>
fn input_symbols(&self) -> Option<&Arc<SymbolTable>>
Retrieves the input
SymbolTable associated to the Fst.
If no SymbolTable has been previously attached then None is returned.source§fn output_symbols(&self) -> Option<&Arc<SymbolTable>>
fn output_symbols(&self) -> Option<&Arc<SymbolTable>>
Retrieves the output
SymbolTable associated to the Fst.
If no SymbolTable has been previously attached then None is returned.source§fn set_input_symbols(&mut self, symt: Arc<SymbolTable>)
fn set_input_symbols(&mut self, symt: Arc<SymbolTable>)
Attaches an output
SymbolTable to the Fst.
The SymbolTable is not duplicated with the use of Arc.source§fn set_output_symbols(&mut self, symt: Arc<SymbolTable>)
fn set_output_symbols(&mut self, symt: Arc<SymbolTable>)
Attaches an output
SymbolTable to the Fst.
The SymbolTable is not duplicated with the use of Arc.source§fn take_input_symbols(&mut self) -> Option<Arc<SymbolTable>>
fn take_input_symbols(&mut self) -> Option<Arc<SymbolTable>>
Removes the input symbol table from the Fst and retrieves it.
source§fn take_output_symbols(&mut self) -> Option<Arc<SymbolTable>>
fn take_output_symbols(&mut self) -> Option<Arc<SymbolTable>>
Removes the output symbol table from the Fst and retrieves it.
source§fn final_states_iter(&self) -> FinalStatesIterator<'_, W, Self>where
Self: Sized,
fn final_states_iter(&self) -> FinalStatesIterator<'_, W, Self>where Self: Sized,
Returns an Iterator on the final states along with their weight.
source§fn paths_iter(&self) -> PathsIterator<'_, W, Self> ⓘwhere
Self: Sized,
fn paths_iter(&self) -> PathsIterator<'_, W, Self> ⓘwhere Self: Sized,
Returns an Iterator on the paths accepted by the Fst. Read more
source§fn string_paths_iter(&self) -> Result<StringPathsIterator<'_, W, Self>>where
Self: Sized,
fn string_paths_iter(&self) -> Result<StringPathsIterator<'_, W, Self>>where Self: Sized,
Returns an Iterator on the paths accepted by the Fst. Plus, handles the SymbolTable
allowing to retrieve the strings instead of only the sequence of labels. Read more
source§impl<'a, W, F> FstIterator<'a, W> for ClosureFst<W, F>where
W: Semiring,
F: Fst<W> + 'a,
impl<'a, W, F> FstIterator<'a, W> for ClosureFst<W, F>where W: Semiring, F: Fst<W> + 'a,
type FstIter = <ReplaceFst<W, F, F> as FstIterator<'a, W>>::FstIter
fn fst_iter(&'a self) -> Self::FstIter
source§impl<'a, W, F> StateIterator<'a> for ClosureFst<W, F>where
W: Semiring,
F: Fst<W> + 'a,
impl<'a, W, F> StateIterator<'a> for ClosureFst<W, F>where W: Semiring, F: Fst<W> + 'a,
§type Iter = <ReplaceFst<W, F, F> as StateIterator<'a>>::Iter
type Iter = <ReplaceFst<W, F, F> as StateIterator<'a>>::Iter
Iterator used to iterate over the
state_id of the states of an FST.source§fn states_iter(&'a self) -> Self::Iter
fn states_iter(&'a self) -> Self::Iter
Creates an iterator over the
state_id of the states of an FST. Read moreAuto Trait Implementations§
impl<W, F> RefUnwindSafe for ClosureFst<W, F>where F: RefUnwindSafe, W: RefUnwindSafe,
impl<W, F> Send for ClosureFst<W, F>where F: Send, W: Send,
impl<W, F> Sync for ClosureFst<W, F>where F: Sync, W: Send,
impl<W, F> Unpin for ClosureFst<W, F>where F: Unpin, W: Unpin,
impl<W, F> UnwindSafe for ClosureFst<W, F>where F: UnwindSafe, W: UnwindSafe,
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