mirror of https://github.com/google/gemma.cpp.git
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
// Copyright 2024 Google LLC
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// SPDX-License-Identifier: Apache-2.0
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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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// https://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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#include "gemma/common.h"
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#include <stddef.h>
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#include <string>
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#include "gemma/configs.h"
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namespace gcpp {
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void Wrap(const ModelConfig& config, size_t pos, std::string& prompt) {
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// Instruction-tuned models are trained to expect control tokens.
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if (config.wrapping == PromptWrapping::GEMMA_IT) {
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// Prepend "<end_of_turn>" if this is a multi-turn dialogue continuation.
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const std::string start = (pos == 0)
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? "<start_of_turn>user\n"
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: "<end_of_turn>\n<start_of_turn>user\n";
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prompt = start + prompt + "<end_of_turn>\n<start_of_turn>model\n";
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}
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}
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} // namespace gcpp
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