1 /* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
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 
16 #ifndef TENSORFLOW_LITE_SUPPORT_CC_UTILS_COMMON_UTILS_H_
17 #define TENSORFLOW_LITE_SUPPORT_CC_UTILS_COMMON_UTILS_H_
18 
19 #include <string>
20 #include <vector>
21 
22 #include "absl/container/node_hash_map.h"
23 
24 namespace tflite {
25 namespace support {
26 namespace utils {
27 
28 // Read a vocab file with one vocabulary on each line, create a vector of
29 // strings.
30 std::vector<std::string> LoadVocabFromFile(const std::string& path_to_vocab);
31 
32 // read a vocab buffer with one vocab one each line, create a vector of strings
33 std::vector<std::string> LoadVocabFromBuffer(const char* vocab_buffer_data,
34                                              const size_t vocab_buffer_size);
35 
36 // Read a vocab file with one vocabulary and its corresponding index on each
37 // line separated by space, create a map of <vocab, index>.
38 absl::node_hash_map<std::string, int> LoadVocabAndIndexFromFile(
39     const std::string& path_to_vocab);
40 
41 // Read a vocab buffer with one vocabulary and its corresponding index on each
42 // line separated by space, create a map of <vocab, index>.
43 absl::node_hash_map<std::string, int> LoadVocabAndIndexFromBuffer(
44     const char* vocab_buffer_data, const size_t vocab_buffer_size);
45 }  // namespace utils
46 }  // namespace support
47 }  // namespace tflite
48 
49 #endif  // TENSORFLOW_LITE_SUPPORT_CC_UTILS_COMMON_UTILS_H_
50