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// Copyright 2016 Google Inc.
//
// 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.!
#include "char_model.h"
#include "util.h"
namespace sentencepiece {
namespace character {
Model::Model(const ModelProto &model_proto) {
model_proto_ = &model_proto;
InitializePieces();
}
Model::~Model() {}
EncodeResult Model::Encode(absl::string_view normalized) const {
if (!status().ok() || normalized.empty()) {
return {};
}
// Splits the input into character sequence
EncodeResult output;
while (!normalized.empty()) {
const int mblen = matcher_->PrefixMatch(normalized);
absl::string_view w(normalized.data(), mblen);
output.emplace_back(w, PieceToId(w));
normalized.remove_prefix(mblen);
}
return output;
}
} // namespace character
} // namespace sentencepiece
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