| |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| // Copyright 2005-2010 Google, Inc. |
| // Author: jpr@google.com (Jake Ratkiewicz) |
| |
| #ifndef FST_SCRIPT_DETERMINIZE_H_ |
| #define FST_SCRIPT_DETERMINIZE_H_ |
| |
| #include <fst/determinize.h> |
| #include <fst/script/arg-packs.h> |
| #include <fst/script/fst-class.h> |
| #include <fst/script/weight-class.h> |
| |
| namespace fst { |
| namespace script { |
| |
| struct DeterminizeOptions { |
| float delta; |
| WeightClass weight_threshold; |
| int64 state_threshold; |
| int64 subsequential_label; |
| |
| explicit DeterminizeOptions(float d = fst::kDelta, |
| WeightClass w = |
| fst::script::WeightClass::Zero(), |
| int64 n = fst::kNoStateId, int64 l = 0) |
| : delta(d), weight_threshold(w), state_threshold(n), |
| subsequential_label(l) {} |
| }; |
| |
| typedef args::Package<const FstClass&, MutableFstClass*, |
| const DeterminizeOptions &> DeterminizeArgs; |
| |
| template<class Arc> |
| void Determinize(DeterminizeArgs *args) { |
| const Fst<Arc> &ifst = *(args->arg1.GetFst<Arc>()); |
| MutableFst<Arc> *ofst = args->arg2->GetMutableFst<Arc>(); |
| const DeterminizeOptions &opts = args->arg3; |
| |
| fst::DeterminizeOptions<Arc> detargs; |
| detargs.delta = opts.delta; |
| detargs.weight_threshold = |
| *(opts.weight_threshold.GetWeight<typename Arc::Weight>()); |
| detargs.state_threshold = opts.state_threshold; |
| detargs.subsequential_label = opts.subsequential_label; |
| |
| Determinize(ifst, ofst, detargs); |
| } |
| |
| void Determinize(const FstClass &ifst, MutableFstClass *ofst, |
| const DeterminizeOptions &opts = |
| fst::script::DeterminizeOptions()); |
| |
| } // namespace script |
| } // namespace fst |
| |
| #endif // FST_SCRIPT_DETERMINIZE_H_ |