1 // fstepsnormalize.cc 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 // Copyright 2005-2010 Google, Inc. 16 // Author: allauzen (at) google.com (Cyril Allauzen) 17 // Modified: jpr (at) google.com (Jake Ratkiewicz) to use FstClass 18 // 19 // \file 20 // Epsilon normalizes an FST. 21 // 22 23 #include <fst/script/epsnormalize.h> 24 25 DEFINE_bool(eps_norm_output, false, "Normalize output epsilons"); 26 27 int main(int argc, char **argv) { 28 namespace s = fst::script; 29 using fst::script::FstClass; 30 using fst::script::VectorFstClass; 31 32 33 string usage = "Epsilon normalizes an FST.\n\n Usage: "; 34 usage += argv[0]; 35 usage += " [in.fst [out.fst]]\n"; 36 37 std::set_new_handler(FailedNewHandler); 38 SetFlags(usage.c_str(), &argc, &argv, true); 39 if (argc > 3) { 40 ShowUsage(); 41 return 1; 42 } 43 44 string in_name = (argc > 1 && strcmp(argv[1], "-") != 0) ? argv[1] : ""; 45 string out_name = argc > 2 ? argv[2] : ""; 46 47 FstClass *ifst = FstClass::Read(in_name); 48 if (!ifst) return 1; 49 50 fst::EpsNormalizeType eps_norm_type = FLAGS_eps_norm_output ? 51 fst::EPS_NORM_OUTPUT : fst::EPS_NORM_INPUT; 52 53 VectorFstClass ofst(ifst->ArcType()); 54 s::EpsNormalize(*ifst, &ofst, eps_norm_type); 55 ofst.Write(out_name); 56 57 return 0; 58 } 59
