| /** |
| * |
| * Copyright (c) 2021 Project CHIP Authors |
| * |
| * 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. |
| */ |
| |
| /** |
| * @file |
| * @brief Declaration of PICS Boolean Expression parser, a class that |
| * implements PICS condition parsing for YAML tests. |
| */ |
| |
| #include <cstdint> |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| class PICSBooleanExpressionParser |
| { |
| public: |
| /** |
| * @brief |
| * This function returns a boolean which is the result of evaluating the |
| * boolean logic expressed into the PICS expression. |
| * |
| * @param [in] expression An expression containing PICS code such as |
| * "!DT_CTRL_CONCATENATED_QR_CODE_1 && DT_CTRL_CONCATENATED_QR_CODE_2" |
| * @param [in] PICS A map of enabled/disabled PICS code |
| * |
| * @returns A boolean as the result of evaluating the expression. |
| */ |
| static bool Eval(std::string expression, std::map<std::string, bool> & PICS); |
| |
| private: |
| static void Tokenize(std::string & expression, std::vector<std::string> & tokens); |
| static bool EvaluateExpression(std::vector<std::string> & tokens, std::map<std::string, bool> & PICS, uint8_t & index); |
| static bool EvaluateSubExpression(std::vector<std::string> & tokens, std::map<std::string, bool> & PICS, uint8_t & index); |
| }; |