// fstbin/fstdeterminizelog.cc
  
  // Copyright 2009-2011  Microsoft Corporation
  
  // See ../../COPYING for clarification regarding multiple authors
  //
  // 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
  //
  // THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  // KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
  // WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
  // MERCHANTABLITY OR NON-INFRINGEMENT.
  // See the Apache 2 License for the specific language governing permissions and
  // limitations under the License.
  
  
  #include "base/kaldi-common.h"
  #include "util/kaldi-io.h"
  #include "util/parse-options.h"
  #include "util/text-utils.h"
  #include "fst/fstlib.h"
  #include "fstext/fstext-utils.h"
  #include "fstext/kaldi-fst-io.h"
  
  int main(int argc, char *argv[]) {
    try {
      using namespace kaldi;
      using namespace fst;
      using kaldi::int32;
  
      const char *usage =
          "Determinizes in the log semiring
  "
          "
  "
          "Usage:  fstdeterminizelog [in.fst [out.fst] ]
  "
          "
  "
          "See also fstdeterminizestar
  ";
      
      ParseOptions po(usage);
      po.Read(argc, argv);
  
      if (po.NumArgs() > 2) {
        po.PrintUsage();
        exit(1);
      }
  
      std::string fst_in_filename = po.GetOptArg(1),
          fst_out_filename = po.GetOptArg(2);
  
      VectorFst<StdArc> *fst = ReadFstKaldi(fst_in_filename);
  
      DeterminizeInLog(fst);
  
      WriteFstKaldi(*fst, fst_out_filename);
      delete fst;
      return 0;
    } catch(const std::exception &e) {
      std::cerr << e.what();
      return -1;
    }
  }