1 /** 2 * Copyright © 2017 IBM Corporation 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 #include <iostream> 17 #include <iterator> 18 #include <algorithm> 19 #include "argument.hpp" 20 21 namespace witherspoon 22 { 23 namespace power 24 { 25 26 void ArgumentParser::usage(char** argv) 27 { 28 std::cerr << "Usage: " << argv[0] << " [options]\n"; 29 std::cerr << "Options:\n"; 30 std::cerr << " --help Print this menu\n"; 31 std::cerr << " --action=<action> Action: pgood-monitor\n"; 32 std::cerr << " --interval=<interval> Time to allow PGOOD to come up\n"; 33 std::cerr << std::flush; 34 } 35 36 const option ArgumentParser::options[] = 37 { 38 {"action", required_argument, NULL, 'a'}, 39 {"interval", required_argument, NULL, 'i'}, 40 {"help", no_argument, NULL, 'h'}, 41 {0, 0, 0, 0}, 42 }; 43 44 const char* ArgumentParser::optionStr = "a:i:h?"; 45 ArgumentParser::ArgumentParser(int argc, char** argv) 46 { 47 int option = 0; 48 while (-1 != (option = getopt_long(argc, argv, optionStr, options, NULL))) 49 { 50 if ((option == '?') || (option == 'h')) 51 { 52 usage(argv); 53 exit(-1); 54 } 55 56 auto i = &options[0]; 57 while ((i->val != option) && (i->val != 0)) 58 { 59 ++i; 60 } 61 62 if (i->val) 63 { 64 arguments[i->name] = (i->has_arg ? optarg : trueString); 65 } 66 } 67 } 68 69 const std::string& ArgumentParser::operator[](const std::string& opt) 70 { 71 auto i = arguments.find(opt); 72 if (i == arguments.end()) 73 { 74 return emptyString; 75 } 76 else 77 { 78 return i->second; 79 } 80 } 81 82 const std::string ArgumentParser::trueString = "true"; 83 const std::string ArgumentParser::emptyString = ""; 84 85 } 86 } 87