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// Copyright 2016 Google LLC.
//
// 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.!
#ifndef SPEC_PARSER_H_
#define SPEC_PARSER_H_
#include <string>
#include <vector>
#include "sentencepiece_processor.h"
#include "third_party/absl/strings/ascii.h"
#include "third_party/absl/strings/str_split.h"
#include "util.h"
namespace sentencepiece {
#define PARSE_STRING(param_name) \
if (name == #param_name) { \
message->set_##param_name(std::string(value)); \
return util::OkStatus(); \
}
#define PARSE_REPEATED_STRING(param_name) \
if (name == #param_name) { \
for (const std::string &val : util::StrSplitAsCSV(value)) { \
message->add_##param_name(val); \
} \
return util::OkStatus(); \
}
#define PARSE_BYTE(param_name) \
if (name == #param_name) { \
message->set_##param_name(value.data(), value.size()); \
return util::OkStatus(); \
}
#define PARSE_INT32(param_name) \
if (name == #param_name) { \
int32 v; \
if (!string_util::lexical_cast(value, &v)) \
return util::StatusBuilder(util::StatusCode::kInvalidArgument, GTL_LOC) \
<< "cannot parse \"" << value << "\" as int."; \
message->set_##param_name(v); \
return util::OkStatus(); \
}
#define PARSE_UINT64(param_name) \
if (name == #param_name) { \
uint64 v; \
if (!string_util::lexical_cast(value, &v)) \
return util::StatusBuilder(util::StatusCode::kInvalidArgument, GTL_LOC) \
<< "cannot parse \"" << value << "\" as int."; \
message->set_##param_name(v); \
return util::OkStatus(); \
}
#define PARSE_DOUBLE(param_name) \
if (name == #param_name) { \
double v; \
if (!string_util::lexical_cast(value, &v)) \
return util::StatusBuilder(util::StatusCode::kInvalidArgument, GTL_LOC) \
<< "cannot parse \"" << value << "\" as int."; \
message->set_##param_name(v); \
return util::OkStatus(); \
}
#define PARSE_BOOL(param_name) \
if (name == #param_name) { \
bool v; \
if (!string_util::lexical_cast(value.empty() ? "true" : value, &v)) \
return util::StatusBuilder(util::StatusCode::kInvalidArgument, GTL_LOC) \
<< "cannot parse \"" << value << "\" as bool."; \
message->set_##param_name(v); \
return util::OkStatus(); \
}
#define PARSE_ENUM(param_name, map_name) \
if (name == #param_name) { \
const auto it = map_name.find(absl::AsciiStrToUpper(value)); \
if (it == map_name.end()) \
return util::StatusBuilder(util::StatusCode::kInvalidArgument, GTL_LOC) \
<< "unknown enumeration value of \"" << value << "\" as " \
<< #map_name; \
message->set_##param_name(it->second); \
return util::OkStatus(); \
}
#define PRINT_PARAM(param_name) \
os << " " << #param_name << ": " << message.param_name() << "\n";
#define PRINT_REPEATED_STRING(param_name) \
for (const auto &v : message.param_name()) \
os << " " << #param_name << ": " << v << "\n";
#define PRINT_ENUM(param_name, map_name) \
const auto it = map_name.find(message.param_name()); \
if (it == map_name.end()) \
os << " " << #param_name << ": unknown\n"; \
else \
os << " " << #param_name << ": " << it->second << "\n";
inline std::string PrintProto(const TrainerSpec &message,
absl::string_view name) {
std::ostringstream os;
os << name << " {\n";
PRINT_REPEATED_STRING(input);
PRINT_PARAM(input_format);
PRINT_PARAM(model_prefix);
static const std::map<TrainerSpec::ModelType, std::string> kModelType_Map = {
{TrainerSpec::UNIGRAM, "UNIGRAM"},
{TrainerSpec::BPE, "BPE"},
{TrainerSpec::WORD, "WORD"},
{TrainerSpec::CHAR, "CHAR"},
};
PRINT_ENUM(model_type, kModelType_Map);
PRINT_PARAM(vocab_size);
PRINT_REPEATED_STRING(accept_language);
PRINT_PARAM(self_test_sample_size);
PRINT_PARAM(character_coverage);
PRINT_PARAM(input_sentence_size);
PRINT_PARAM(shuffle_input_sentence);
PRINT_PARAM(seed_sentencepiece_size);
PRINT_PARAM(shrinking_factor);
PRINT_PARAM(max_sentence_length);
PRINT_PARAM(num_threads);
PRINT_PARAM(num_sub_iterations);
PRINT_PARAM(max_sentencepiece_length);
PRINT_PARAM(split_by_unicode_script);
PRINT_PARAM(split_by_number);
PRINT_PARAM(split_by_whitespace);
PRINT_PARAM(split_digits);
PRINT_PARAM(pretokenization_delimiter);
PRINT_PARAM(treat_whitespace_as_suffix);
PRINT_PARAM(allow_whitespace_only_pieces);
PRINT_REPEATED_STRING(control_symbols);
PRINT_REPEATED_STRING(user_defined_symbols);
PRINT_PARAM(required_chars);
PRINT_PARAM(byte_fallback);
PRINT_PARAM(vocabulary_output_piece_score);
PRINT_PARAM(train_extremely_large_corpus);
PRINT_PARAM(seed_sentencepieces_file);
PRINT_PARAM(hard_vocab_limit);
PRINT_PARAM(use_all_vocab);
PRINT_PARAM(unk_id);
PRINT_PARAM(bos_id);
PRINT_PARAM(eos_id);
PRINT_PARAM(pad_id);
PRINT_PARAM(unk_piece);
PRINT_PARAM(bos_piece);
PRINT_PARAM(eos_piece);
PRINT_PARAM(pad_piece);
PRINT_PARAM(unk_surface);
PRINT_PARAM(enable_differential_privacy);
PRINT_PARAM(differential_privacy_noise_level);
PRINT_PARAM(differential_privacy_clipping_threshold);
os << "}\n";
return os.str();
}
inline std::string PrintProto(const NormalizerSpec &message,
absl::string_view name) {
std::ostringstream os;
os << name << " {\n";
PRINT_PARAM(name);
PRINT_PARAM(add_dummy_prefix);
PRINT_PARAM(remove_extra_whitespaces);
PRINT_PARAM(escape_whitespaces);
PRINT_PARAM(normalization_rule_tsv);
os << "}\n";
return os.str();
}
util::Status SentencePieceTrainer::SetProtoField(absl::string_view name,
absl::string_view value,
TrainerSpec *message) {
CHECK_OR_RETURN(message);
PARSE_REPEATED_STRING(input);
PARSE_STRING(input_format);
PARSE_STRING(model_prefix);
static const std::map<std::string, TrainerSpec::ModelType> kModelType_Map = {
{"UNIGRAM", TrainerSpec::UNIGRAM},
{"BPE", TrainerSpec::BPE},
{"WORD", TrainerSpec::WORD},
{"CHAR", TrainerSpec::CHAR},
};
PARSE_ENUM(model_type, kModelType_Map);
PARSE_INT32(vocab_size);
PARSE_REPEATED_STRING(accept_language);
PARSE_INT32(self_test_sample_size);
PARSE_DOUBLE(character_coverage);
PARSE_UINT64(input_sentence_size);
PARSE_BOOL(shuffle_input_sentence);
PARSE_INT32(seed_sentencepiece_size);
PARSE_DOUBLE(shrinking_factor);
PARSE_INT32(max_sentence_length);
PARSE_INT32(num_threads);
PARSE_INT32(num_sub_iterations);
PARSE_INT32(max_sentencepiece_length);
PARSE_BOOL(split_by_unicode_script);
PARSE_BOOL(split_by_number);
PARSE_BOOL(split_by_whitespace);
PARSE_BOOL(split_digits);
PARSE_STRING(pretokenization_delimiter);
PARSE_BOOL(treat_whitespace_as_suffix);
PARSE_BOOL(allow_whitespace_only_pieces);
PARSE_REPEATED_STRING(control_symbols);
PARSE_REPEATED_STRING(user_defined_symbols);
PARSE_STRING(required_chars);
PARSE_BOOL(byte_fallback);
PARSE_BOOL(hard_vocab_limit);
PARSE_BOOL(vocabulary_output_piece_score);
PARSE_BOOL(train_extremely_large_corpus);
PARSE_STRING(seed_sentencepieces_file);
PARSE_BOOL(use_all_vocab);
PARSE_INT32(unk_id);
PARSE_INT32(bos_id);
PARSE_INT32(eos_id);
PARSE_INT32(pad_id);
PARSE_STRING(unk_piece);
PARSE_STRING(bos_piece);
PARSE_STRING(eos_piece);
PARSE_STRING(pad_piece);
PARSE_STRING(unk_surface);
PARSE_BOOL(enable_differential_privacy);
PARSE_DOUBLE(differential_privacy_noise_level);
PARSE_UINT64(differential_privacy_clipping_threshold);
return util::StatusBuilder(util::StatusCode::kNotFound, GTL_LOC)
<< "unknown field name \"" << name << "\" in TrainerSpec.";
}
util::Status SentencePieceTrainer::SetProtoField(absl::string_view name,
absl::string_view value,
NormalizerSpec *message) {
CHECK_OR_RETURN(message);
PARSE_STRING(name);
PARSE_BYTE(precompiled_charsmap);
PARSE_BOOL(add_dummy_prefix);
PARSE_BOOL(remove_extra_whitespaces);
PARSE_BOOL(escape_whitespaces);
PARSE_STRING(normalization_rule_tsv);
return util::StatusBuilder(util::StatusCode::kNotFound, GTL_LOC)
<< "unknown field name \"" << name << "\" in NormalizerSpec.";
}
#undef PARSE_STRING
#undef PARSE_REPEATED_STRING
#undef PARSE_BOOL
#undef PARSE_BYTE
#undef PARSE_INT32
#undef PARSE_DUOBLE
#undef PARSE_ENUM
#undef PRINT_MAP
#undef PRINT_REPEATED_STRING
#undef PRINT_ENUM
} // namespace sentencepiece
#endif // SPEC_PARSER_H_
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