TrivialFactorWeightFst< A, F > Class Template Reference

TrivialFactorWeightFst takes as template parameter a FactorIterator as defined above. More...

#include <trivial-factor-weight.h>

Inheritance diagram for TrivialFactorWeightFst< A, F >:

Collaboration diagram for TrivialFactorWeightFst< A, F >:

Public Types
typedef A	Arc
typedef A::Weight	Weight
typedef A::StateId	StateId
typedef DefaultCacheStore< Arc >	Store
typedef Store::State	State
typedef internal::TrivialFactorWeightFstImpl< A, F >	Impl

Public Member Functions
	TrivialFactorWeightFst (const Fst< A > &fst)
	TrivialFactorWeightFst (const Fst< A > &fst, const TrivialFactorWeightOptions< A > &opts)
	TrivialFactorWeightFst (const TrivialFactorWeightFst< A, F > &fst, bool copy)
TrivialFactorWeightFst< A, F > *	Copy (bool copy=false) const override
void	InitStateIterator (StateIteratorData< A > *data) const override
void	InitArcIterator (StateId s, ArcIteratorData< A > *data) const override

Private Member Functions
TrivialFactorWeightFst &	operator= (const TrivialFactorWeightFst &fst)=delete

Friends
class	ArcIterator< TrivialFactorWeightFst< A, F > >
class	StateIterator< TrivialFactorWeightFst< A, F > >

Detailed Description

template<class A, class F>
class fst::TrivialFactorWeightFst< A, F >

TrivialFactorWeightFst takes as template parameter a FactorIterator as defined above.

The result of weight factoring is a transducer equivalent to the input whose path weights have been factored according to the FactorIterator. States and transitions will be added as necessary. This algorithm differs from the one implemented in FactorWeightFst in that it does not attempt to push the extra weight forward to the next state: it uses a sequence of "extra" intermediate state, and outputs the remaining weight right away. This ensures that it will always succeed, even for Gallic representations of FSTs that have cycles with more output than input symbols. Note that the code below was modified from factor-weight.h by just search-and-replacing "FactorWeight" by "TrivialFactorWeight".

Definition at line 325 of file trivial-factor-weight.h.

Member Typedef Documentation

Arc

typedef A Arc

Definition at line 331 of file trivial-factor-weight.h.

Impl

typedef internal::TrivialFactorWeightFstImpl<A, F> Impl

Definition at line 336 of file trivial-factor-weight.h.

State

typedef Store::State State

Definition at line 335 of file trivial-factor-weight.h.

StateId

typedef A::StateId StateId

Definition at line 333 of file trivial-factor-weight.h.

Store

typedef DefaultCacheStore<Arc> Store

Definition at line 334 of file trivial-factor-weight.h.

Weight

typedef A::Weight Weight

Definition at line 332 of file trivial-factor-weight.h.

Constructor & Destructor Documentation

TrivialFactorWeightFst() [1/3]

TrivialFactorWeightFst ( const Fst< A > &  fst )

inlineexplicit

Definition at line 338 of file trivial-factor-weight.h.

      : ImplToFst<Impl>(std::make_shared<Impl>(fst, TrivialFactorWeightOptions<A>())) {}

TrivialFactorWeightFst() [2/3]

TrivialFactorWeightFst ( const Fst< A > &  fst, const TrivialFactorWeightOptions< A > &  opts  )

inline

Definition at line 341 of file trivial-factor-weight.h.

      : ImplToFst<Impl>(std::make_shared<Impl>(fst, opts)) {}

TrivialFactorWeightFst() [3/3]

TrivialFactorWeightFst ( const TrivialFactorWeightFst< A, F > &  fst, bool  copy  )

inline

Definition at line 345 of file trivial-factor-weight.h.

      : ImplToFst<Impl>(fst, copy) {}

Member Function Documentation

Copy()

TrivialFactorWeightFst<A, F>* Copy ( bool  copy = false ) const

inlineoverride

Definition at line 349 of file trivial-factor-weight.h.

                                                                       {
    return new TrivialFactorWeightFst<A, F>(*this, copy);
  }

InitArcIterator()

void InitArcIterator ( StateId  s, ArcIteratorData< A > *  data  ) const

inlineoverride

Definition at line 355 of file trivial-factor-weight.h.

                                                                           {
    GetMutableImpl()->InitArcIterator(s, data);
  }

InitStateIterator()

void InitStateIterator ( StateIteratorData< A > *  data ) const

inlineoverride

Definition at line 391 of file trivial-factor-weight.h.

                                      {
  data->base = new StateIterator< TrivialFactorWeightFst<A, F> >(*this);
}

operator=()

TrivialFactorWeightFst& operator= ( const TrivialFactorWeightFst< A, F > &  fst )

privatedelete

Friends And Related Function Documentation

ArcIterator< TrivialFactorWeightFst< A, F > >

friend class ArcIterator< TrivialFactorWeightFst< A, F > >

friend

Definition at line 328 of file trivial-factor-weight.h.

StateIterator< TrivialFactorWeightFst< A, F > >

friend class StateIterator< TrivialFactorWeightFst< A, F > >

friend

Definition at line 329 of file trivial-factor-weight.h.

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The documentation for this class was generated from the following file:

• fstext/trivial-factor-weight.h