parsebool.h

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/*
 * Copyright (C) 2019 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.
 */
 
#pragma once
 
#include <string_view>
 
namespace android {
namespace base {
 
// Parse the given string as yes or no inactivation of some sort. Return one of the
// ParseBoolResult enumeration values.
//
// The following values parse as true:
//
//   1
//   on
//   true
//   y
//   yes
//
//
// The following values parse as false:
//
//   0
//   false
//   n
//   no
//   off
//
// Anything else is a parse error.
//
// The purpose of this function is to have a single canonical parser for yes-or-no indications
// throughout the system.
 
enum class ParseBoolResult {
  kError,
  kFalse,
  kTrue,
};
 
ParseBoolResult ParseBool(std::string_view s);
 
}  // namespace base
}  // namespace android