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/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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 OTAPREOPT_FILE_PARSING_H_
#define OTAPREOPT_FILE_PARSING_H_
#include <fstream>
#include <functional>
#include <string_view>
#include "android-base/unique_fd.h"
namespace android {
namespace installd {
template<typename Func>
bool ParseFile(std::istream& input_stream, Func parse) {
while (!input_stream.eof()) {
// Read the next line.
std::string line;
getline(input_stream, line);
// Is the line empty? Simplifies the next check.
if (line.empty()) {
continue;
}
// Is this a comment (starts with pound)?
if (line[0] == '#') {
continue;
}
if (!parse(line)) {
return false;
}
}
return true;
}
template<typename Func>
bool ParseFile(std::string_view str_file, Func parse) {
std::ifstream ifs(str_file);
if (!ifs.is_open()) {
return false;
}
return ParseFile(ifs, parse);
}
} // namespace installd
} // namespace android
#endif // OTAPREOPT_FILE_PARSING_H_
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