fstcompose-maplex.cc

// 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 2012 Aix-Marseille Univ.
// Author: benoit.favre@lif.univ-mrs.fr (Benoit Favre)

#include <fst/fstlib.h>

using namespace fst;

int main(int argc, char** argv) {
    if(argc != 3) {
        std::cerr << "usage: " << argv[0] << " <fst1> <fst2>\n";
        return 1;
    }
    StdVectorFst *input1 = StdVectorFst::Read(argv[1]);
    StdVectorFst *input2 = StdVectorFst::Read(argv[2]);
    bool relabel;
    SymbolTable *symbolMap = MergeSymbolTable(*(input1->OutputSymbols()), *(input2->InputSymbols()), &relabel);
    Relabel(input1, NULL, symbolMap);
    Relabel(input2, symbolMap, NULL);
    input1->SetOutputSymbols(symbolMap);
    ArcSort(input1, StdOLabelCompare());
    input2->SetInputSymbols(symbolMap);
    delete symbolMap;
    StdVectorFst composed;
    Compose(*input1, *input2, &composed);
    composed.Write("");
    delete input1;
    delete input2;
}