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      1 // farcompilestrings.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 new arc-type dispatching
     18 //
     19 // \file
     20 // Compiles a set of stings as FSTs and stores them in a finite-state
     21 // archive.
     22 //
     23 
     24 #include <fst/extensions/far/farscript.h>
     25 #include <fst/extensions/far/main.h>
     26 #include <iostream>
     27 #include <fstream>
     28 #include <sstream>
     29 
     30 DEFINE_string(key_prefix, "", "Prefix to append to keys");
     31 DEFINE_string(key_suffix, "", "Suffix to append to keys");
     32 DEFINE_int32(generate_keys, 0,
     33              "Generate N digit numeric keys (def: use file basenames)");
     34 DEFINE_string(far_type, "default",
     35               "FAR file format type: one of: \"default\", \"fst\", "
     36               "\"stlist\", \"sttable\"");
     37 DEFINE_bool(allow_negative_labels, false,
     38             "Allow negative labels (not recommended; may cause conflicts)");
     39 DEFINE_string(arc_type, "standard", "Output arc type");
     40 DEFINE_string(entry_type, "line", "Entry type: one of : "
     41               "\"file\" (one FST per file), \"line\" (one FST per line)");
     42 DEFINE_string(fst_type, "vector", "Output FST type");
     43 DEFINE_string(token_type, "symbol", "Token type: one of : "
     44               "\"symbol\", \"byte\", \"utf8\"");
     45 DEFINE_string(symbols, "", "Label symbol table");
     46 DEFINE_string(unknown_symbol, "", "");
     47 DEFINE_bool(file_list_input, false,
     48             "Each input files contains a list of files to be processed");
     49 DEFINE_bool(keep_symbols, false,
     50             "Store symbol table in Far file");
     51 DEFINE_bool(initial_symbols, true,
     52             "When keep_symbols==true, stores symbol table only for the first"
     53             " Fst in archive.");
     54 
     55 int  main(int argc, char **argv) {
     56   namespace s = fst::script;
     57 
     58   string usage = "Compiles a set of strings as FSTs and stores them in";
     59   usage += " a finite-state archive.\n\n Usage:";
     60   usage += argv[0];
     61   usage += " [in1.txt [[in2.txt ...] out.far]]\n";
     62 
     63   std::set_new_handler(FailedNewHandler);
     64   SET_FLAGS(usage.c_str(), &argc, &argv, true);
     65 
     66   vector<string> in_fnames;
     67   for (unsigned i = 1; i < argc - 1; ++i)
     68     in_fnames.push_back(strcmp(argv[i], "") != 0 ? argv[i] : "");
     69   if (in_fnames.empty())
     70     in_fnames.push_back(argc == 2 && strcmp(argv[1], "-") != 0 ? argv[1] : "");
     71 
     72   string out_fname =
     73       argc > 2 && strcmp(argv[argc - 1], "-") != 0 ? argv[argc - 1] : "";
     74 
     75   fst::FarEntryType fet = fst::StringToFarEntryType(FLAGS_entry_type);
     76   fst::FarTokenType ftt = fst::StringToFarTokenType(FLAGS_token_type);
     77   fst::FarType far_type = fst::FarTypeFromString(FLAGS_far_type);
     78 
     79   s::FarCompileStrings(in_fnames, out_fname, FLAGS_arc_type, FLAGS_fst_type,
     80                        far_type, FLAGS_generate_keys, fet, ftt,
     81                        FLAGS_symbols, FLAGS_unknown_symbol,
     82                        FLAGS_keep_symbols, FLAGS_initial_symbols,
     83                        FLAGS_allow_negative_labels,
     84                        FLAGS_file_list_input, FLAGS_key_prefix,
     85                        FLAGS_key_suffix);
     86 
     87   return 0;
     88 }
     89