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Diffstat (limited to 'kaldi_io/src/tools/openfst/include/fst/extensions/far/create.h')
-rw-r--r-- | kaldi_io/src/tools/openfst/include/fst/extensions/far/create.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/kaldi_io/src/tools/openfst/include/fst/extensions/far/create.h b/kaldi_io/src/tools/openfst/include/fst/extensions/far/create.h new file mode 100644 index 0000000..edb31e7 --- /dev/null +++ b/kaldi_io/src/tools/openfst/include/fst/extensions/far/create.h @@ -0,0 +1,87 @@ +// create-main.h + +// 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: [email protected] (Michael Riley) +// Modified: [email protected] (Jake Ratkiewicz) to use new dispatch +// +// \file +// Creates a finite-state archive from component FSTs. Includes +// helper function for farcreate.cc that templates the main on the arc +// type to support multiple and extensible arc types. +// + +#ifndef FST_EXTENSIONS_FAR_CREATE_H__ +#define FST_EXTENSIONS_FAR_CREATE_H__ + +#include <libgen.h> +#include <string> +#include <vector> +using std::vector; + +#include <fst/extensions/far/far.h> + +namespace fst { + +template <class Arc> +void FarCreate(const vector<string> &in_fnames, + const string &out_fname, + const int32 generate_keys, + const bool file_list_input, + const FarType &far_type, + const string &key_prefix, + const string &key_suffix) { + FarWriter<Arc> *far_writer = + FarWriter<Arc>::Create(out_fname, far_type); + if (!far_writer) return; + + vector<string> inputs; + if (file_list_input) { + for (int i = 1; i < in_fnames.size(); ++i) { + ifstream istrm(in_fnames[i].c_str()); + string str; + while (getline(istrm, str)) + inputs.push_back(str); + } + } else { + inputs = in_fnames; + } + + for (int i = 0; i < inputs.size(); ++i) { + Fst<Arc> *ifst = Fst<Arc>::Read(inputs[i]); + if (!ifst) return; + string key; + if (generate_keys > 0) { + ostringstream keybuf; + keybuf.width(generate_keys); + keybuf.fill('0'); + keybuf << i + 1; + key = keybuf.str(); + } else { + char* filename = new char[inputs[i].size() + 1]; + strcpy(filename, inputs[i].c_str()); + key = basename(filename); + delete[] filename; + } + + far_writer->Add(key_prefix + key + key_suffix, *ifst); + delete ifst; + } + + delete far_writer; +} + +} // namespace fst + +#endif // FST_EXTENSIONS_FAR_CREATE_H__ |