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88 lines
3.1 KiB
88 lines
3.1 KiB
// Copyright 2005-2024 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the 'License');
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an 'AS IS' BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// See www.openfst.org for extensive documentation on this weighted
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// finite-state transducer library.
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#ifndef FST_SCRIPT_PRINT_H_
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#define FST_SCRIPT_PRINT_H_
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#include <ostream>
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#include <string>
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#include <fst/flags.h>
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#include <fst/fst.h>
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#include <fst/symbol-table.h>
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#include <fst/script/fst-class.h>
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#include <fst/script/print-impl.h>
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#include <string_view>
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DECLARE_string(fst_field_separator);
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namespace fst {
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namespace script {
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// Note: it is safe to pass these strings as references because this struct is
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// only used to pass them deeper in the call graph. Be sure you understand why
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// this is so before using this struct for anything else!
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struct FstPrintArgs {
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const FstClass &fst;
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const SymbolTable *isyms;
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const SymbolTable *osyms;
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const SymbolTable *ssyms;
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const bool accept;
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const bool show_weight_one;
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std::ostream &ostrm;
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const std::string &dest;
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const std::string &sep;
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const std::string &missing_symbol;
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};
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template <class Arc>
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void Print(FstPrintArgs *args) {
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const Fst<Arc> &fst = *args->fst.GetFst<Arc>();
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FstPrinter<Arc> fstprinter(fst, args->isyms, args->osyms, args->ssyms,
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args->accept, args->show_weight_one, args->sep,
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args->missing_symbol);
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fstprinter.Print(args->ostrm, args->dest);
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}
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void Print(const FstClass &fst, std::ostream &ostrm, const std::string &dest,
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const SymbolTable *isyms = nullptr,
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const SymbolTable *osyms = nullptr,
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const SymbolTable *ssyms = nullptr, bool accept = true,
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bool show_weight_one = true, const std::string &missing_sym = "");
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// TODO(kbg,2019-09-01): Deprecated.
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void PrintFst(const FstClass &fst, std::ostream &ostrm, const std::string &dest,
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const SymbolTable *isyms, const SymbolTable *osyms,
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const SymbolTable *ssyms, bool accept, bool show_weight_one,
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const std::string &missing_sym = "");
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// The same, but with more sensible defaults, and for arc-templated FSTs only.
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// TODO(kbg,2019-09-01): Deprecated.
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template <class Arc>
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void PrintFst(const Fst<Arc> &fst, std::ostream &ostrm,
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std::string_view dest = "", const SymbolTable *isyms = nullptr,
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const SymbolTable *osyms = nullptr,
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const SymbolTable *ssyms = nullptr) {
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const std::string sep = FST_FLAGS_fst_field_separator.substr(0, 1);
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FstPrinter<Arc> fstprinter(fst, isyms, osyms, ssyms, true, true, sep);
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fstprinter.Print(ostrm, dest);
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}
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} // namespace script
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} // namespace fst
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#endif // FST_SCRIPT_PRINT_H_
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