1 2 // Licensed under the Apache License, Version 2.0 (the "License"); 3 // you may not use this file except in compliance with the License. 4 // You may obtain a copy of the License at 5 // 6 // http://www.apache.org/licenses/LICENSE-2.0 7 // 8 // Unless required by applicable law or agreed to in writing, software 9 // distributed under the License is distributed on an "AS IS" BASIS, 10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 // See the License for the specific language governing permissions and 12 // limitations under the License. 13 // 14 // Copyright 2005-2010 Google, Inc. 15 // Author: jpr (at) google.com (Jake Ratkiewicz) 16 17 #ifndef FST_SCRIPT_DETERMINIZE_H_ 18 #define FST_SCRIPT_DETERMINIZE_H_ 19 20 #include <fst/determinize.h> 21 #include <fst/script/arg-packs.h> 22 #include <fst/script/fst-class.h> 23 #include <fst/script/weight-class.h> 24 25 namespace fst { 26 namespace script { 27 28 struct DeterminizeOptions { 29 float delta; 30 WeightClass weight_threshold; 31 int64 state_threshold; 32 int64 subsequential_label; 33 34 explicit DeterminizeOptions(float d = fst::kDelta, 35 WeightClass w = 36 fst::script::WeightClass::Zero(), 37 int64 n = fst::kNoStateId, int64 l = 0) 38 : delta(d), weight_threshold(w), state_threshold(n), 39 subsequential_label(l) {} 40 }; 41 42 typedef args::Package<const FstClass&, MutableFstClass*, 43 const DeterminizeOptions &> DeterminizeArgs; 44 45 template<class Arc> 46 void Determinize(DeterminizeArgs *args) { 47 const Fst<Arc> &ifst = *(args->arg1.GetFst<Arc>()); 48 MutableFst<Arc> *ofst = args->arg2->GetMutableFst<Arc>(); 49 const DeterminizeOptions &opts = args->arg3; 50 51 fst::DeterminizeOptions<Arc> detargs; 52 detargs.delta = opts.delta; 53 detargs.weight_threshold = 54 *(opts.weight_threshold.GetWeight<typename Arc::Weight>()); 55 detargs.state_threshold = opts.state_threshold; 56 detargs.subsequential_label = opts.subsequential_label; 57 58 Determinize(ifst, ofst, detargs); 59 } 60 61 void Determinize(const FstClass &ifst, MutableFstClass *ofst, 62 const DeterminizeOptions &opts = 63 fst::script::DeterminizeOptions()); 64 65 } // namespace script 66 } // namespace fst 67 68 #endif // FST_SCRIPT_DETERMINIZE_H_ 69
