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 #include <fst/script/fst-class.h> 18 #include <fst/script/script-impl.h> 19 #include <fst/script/difference.h> 20 21 namespace fst { 22 namespace script { 23 24 void Difference(const FstClass &ifst1, const FstClass &ifst2, 25 MutableFstClass *ofst, ComposeFilter compose_filter) { 26 if (!ArcTypesMatch(ifst1, ifst2, "Difference") || 27 !ArcTypesMatch(*ofst, ifst1, "Difference")) return; 28 29 DifferenceArgs1 args(ifst1, ifst2, ofst, compose_filter); 30 Apply<Operation<DifferenceArgs1> >("Difference", ifst1.ArcType(), &args); 31 } 32 33 void Difference(const FstClass &ifst1, const FstClass &ifst2, 34 MutableFstClass *ofst, const ComposeOptions &copts) { 35 if (!ArcTypesMatch(ifst1, ifst2, "Difference") || 36 !ArcTypesMatch(*ofst, ifst1, "Difference")) return; 37 38 DifferenceArgs2 args(ifst1, ifst2, ofst, copts); 39 Apply<Operation<DifferenceArgs2> >("Difference", ifst1.ArcType(), &args); 40 } 41 42 REGISTER_FST_OPERATION(Difference, StdArc, DifferenceArgs1); 43 REGISTER_FST_OPERATION(Difference, LogArc, DifferenceArgs1); 44 REGISTER_FST_OPERATION(Difference, Log64Arc, DifferenceArgs1); 45 REGISTER_FST_OPERATION(Difference, StdArc, DifferenceArgs2); 46 REGISTER_FST_OPERATION(Difference, LogArc, DifferenceArgs2); 47 REGISTER_FST_OPERATION(Difference, Log64Arc, DifferenceArgs2); 48 49 } // namespace script 50 } // namespace fst 51
