1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef TEXT_PARSER_BASE_H 18 #define TEXT_PARSER_BASE_H 19 20 #include <utils/Errors.h> 21 #include <utils/String8.h> 22 23 using namespace android; 24 using namespace std; 25 26 /** 27 * Base class for text parser 28 */ 29 class TextParserBase { 30 public: 31 String8 name; 32 33 explicit TextParserBase(String8 name) : name(name) {}; 34 virtual ~TextParserBase() {}; 35 36 virtual status_t Parse(const int in, const int out) const = 0; 37 }; 38 39 /** 40 * No op parser returns what it reads 41 */ 42 class NoopParser : public TextParserBase { 43 public: 44 NoopParser() : TextParserBase(String8("NoopParser")) {}; 45 ~NoopParser() {}; 46 47 virtual status_t Parse(const int in, const int out) const; 48 }; 49 50 /** 51 * This parser is used for testing only, results in timeout. 52 */ 53 class TimeoutParser : public TextParserBase { 54 public: 55 TimeoutParser() : TextParserBase(String8("TimeoutParser")) {}; 56 ~TimeoutParser() {}; 57 58 virtual status_t Parse(const int /** in */, const int /** out */) const { while (true); }; 59 }; 60 61 /** 62 * This parser is used for testing only, results in reversed input text. 63 */ 64 class ReverseParser : public TextParserBase { 65 public: 66 ReverseParser() : TextParserBase(String8("ReverseParser")) {}; 67 ~ReverseParser() {}; 68 69 virtual status_t Parse(const int in, const int out) const; 70 }; 71 72 #endif // TEXT_PARSER_BASE_H 73
