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      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_COMPOSE_H_
     18 #define FST_SCRIPT_COMPOSE_H_
     19 
     20 #include <fst/script/arg-packs.h>
     21 #include <fst/script/fst-class.h>
     22 #include <fst/compose.h>
     23 
     24 namespace fst {
     25 namespace script {
     26 
     27 typedef args::Package<const FstClass&, const FstClass&,
     28                       MutableFstClass*, ComposeFilter> ComposeArgs1;
     29 
     30 template<class Arc>
     31 void Compose(ComposeArgs1 *args) {
     32   const Fst<Arc> &ifst1 = *(args->arg1.GetFst<Arc>());
     33   const Fst<Arc> &ifst2 = *(args->arg2.GetFst<Arc>());
     34   MutableFst<Arc> *ofst = args->arg3->GetMutableFst<Arc>();
     35 
     36   Compose(ifst1, ifst2, ofst, args->arg4);
     37 }
     38 
     39 typedef fst::ComposeOptions ComposeOptions;
     40 
     41 typedef args::Package<const FstClass&, const FstClass&,
     42                       MutableFstClass*, const ComposeOptions &> ComposeArgs2;
     43 
     44 template<class Arc>
     45 void Compose(ComposeArgs2 *args) {
     46   const Fst<Arc> &ifst1 = *(args->arg1.GetFst<Arc>());
     47   const Fst<Arc> &ifst2 = *(args->arg2.GetFst<Arc>());
     48   MutableFst<Arc> *ofst = args->arg3->GetMutableFst<Arc>();
     49 
     50   Compose(ifst1, ifst2, ofst, args->arg4);
     51 }
     52 
     53 void Compose(const FstClass &ifst1, const FstClass &ifst2,
     54              MutableFstClass *ofst,
     55              const ComposeOptions &opts = fst::script::ComposeOptions());
     56 
     57 void Compose(const FstClass &ifst1, const FstClass &ifst2,
     58              MutableFstClass *ofst, ComposeFilter compose_filter);
     59 
     60 }  // namespace script
     61 }  // namespace fst
     62 
     63 #endif  // FST_SCRIPT_COMPOSE_H_
     64