| // pdtcompose.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 2005-2010 Google, Inc. |
| // Author: riley@google.com (Michael Riley) |
| // |
| // \file |
| // Composes a PDT and an FST. |
| // |
| |
| #include <vector> |
| using std::vector; |
| #include <utility> |
| using std::pair; using std::make_pair; |
| |
| #include <fst/util.h> |
| #include <fst/extensions/pdt/pdtscript.h> |
| #include <fst/script/connect.h> |
| |
| DEFINE_string(pdt_parentheses, "", "PDT parenthesis label pairs."); |
| DEFINE_bool(left_pdt, true, "1st arg is PDT (o.w. 2nd arg)."); |
| DEFINE_bool(connect, true, "Trim output"); |
| |
| int main(int argc, char **argv) { |
| namespace s = fst::script; |
| |
| string usage = "Compose a PDT and an FST.\n\n Usage: "; |
| usage += argv[0]; |
| usage += " in.pdt in.fst [out.pdt]\n"; |
| usage += " in.fst in.pdt [out.pdt]\n"; |
| |
| std::set_new_handler(FailedNewHandler); |
| SetFlags(usage.c_str(), &argc, &argv, true); |
| if (argc < 3 || argc > 4) { |
| ShowUsage(); |
| return 1; |
| } |
| |
| string in1_name = strcmp(argv[1], "-") == 0 ? "" : argv[1]; |
| string in2_name = strcmp(argv[2], "-") == 0 ? "" : argv[2]; |
| string out_name = argc > 3 ? argv[3] : ""; |
| |
| if (in1_name.empty() && in2_name.empty()) { |
| LOG(ERROR) << argv[0] << ": Can't take both inputs from standard input."; |
| return 1; |
| } |
| |
| s::FstClass *ifst1 = s::FstClass::Read(in1_name); |
| if (!ifst1) return 1; |
| s::FstClass *ifst2 = s::FstClass::Read(in2_name); |
| if (!ifst2) return 1; |
| |
| if (FLAGS_pdt_parentheses.empty()) { |
| LOG(ERROR) << argv[0] << ": No PDT parenthesis label pairs provided"; |
| return 1; |
| } |
| |
| vector<pair<int64, int64> > parens; |
| fst::ReadLabelPairs(FLAGS_pdt_parentheses, &parens, false); |
| |
| s::VectorFstClass ofst(ifst1->ArcType()); |
| fst::ComposeOptions copts(false); |
| |
| s::PdtCompose(*ifst1, *ifst2, parens, &ofst, copts, FLAGS_left_pdt); |
| |
| if (FLAGS_connect) |
| s::Connect(&ofst); |
| ofst.Write(out_name); |
| |
| return 0; |
| } |