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  1. // Copyright 2005-2024 Google LLC
  2. //
  3. // Licensed under the Apache License, Version 2.0 (the 'License');
  4. // you may not use this file except in compliance with the License.
  5. // You may obtain a copy of the License at
  6. //
  7. // http://www.apache.org/licenses/LICENSE-2.0
  8. //
  9. // Unless required by applicable law or agreed to in writing, software
  10. // distributed under the License is distributed on an 'AS IS' BASIS,
  11. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12. // See the License for the specific language governing permissions and
  13. // limitations under the License.
  14. //
  15. // See www.openfst.org for extensive documentation on this weighted
  16. // finite-state transducer library.
  17. #ifndef FST_SCRIPT_MINIMIZE_H_
  18. #define FST_SCRIPT_MINIMIZE_H_
  19. #include <tuple>
  20. #include <fst/minimize.h>
  21. #include <fst/mutable-fst.h>
  22. #include <fst/shortest-distance.h>
  23. #include <fst/script/fst-class.h>
  24. namespace fst {
  25. namespace script {
  26. using FstMinimizeArgs =
  27. std::tuple<MutableFstClass *, MutableFstClass *, float, bool>;
  28. template <class Arc>
  29. void Minimize(FstMinimizeArgs *args) {
  30. MutableFst<Arc> *ofst1 = std::get<0>(*args)->GetMutableFst<Arc>();
  31. MutableFst<Arc> *ofst2 =
  32. std::get<1>(*args) ? std::get<1>(*args)->GetMutableFst<Arc>() : nullptr;
  33. Minimize(ofst1, ofst2, std::get<2>(*args), std::get<3>(*args));
  34. }
  35. void Minimize(MutableFstClass *ofst1,
  36. MutableFstClass * ofst2 = nullptr,
  37. float delta = kShortestDelta, bool allow_nondet = false);
  38. } // namespace script
  39. } // namespace fst
  40. #endif // FST_SCRIPT_MINIMIZE_H_