Moritz Pflanzer | bb4a79b | 2017-07-05 11:02:46 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | #include "CommandLineParser.h" |
| 25 | |
| 26 | #include <iostream> |
| 27 | #include <regex> |
| 28 | |
| 29 | namespace arm_compute |
| 30 | { |
| 31 | namespace test |
| 32 | { |
| 33 | namespace framework |
| 34 | { |
| 35 | void CommandLineParser::parse(int argc, char **argv) |
| 36 | { |
| 37 | const std::regex option_regex{ "--((?:no-)?)([^=]+)(?:=(.*))?" }; |
| 38 | |
| 39 | const auto set_option = [&](const std::string & option, const std::string & name, const std::string & value) |
| 40 | { |
| 41 | if(_options.find(name) == _options.end()) |
| 42 | { |
| 43 | _unknown_options.push_back(option); |
| 44 | return; |
| 45 | } |
| 46 | |
| 47 | const bool success = _options[name]->parse(value); |
| 48 | |
| 49 | if(!success) |
| 50 | { |
| 51 | _invalid_options.push_back(option); |
| 52 | } |
| 53 | }; |
| 54 | |
| 55 | unsigned int positional_index = 0; |
| 56 | |
| 57 | for(int i = 1; i < argc; ++i) |
| 58 | { |
| 59 | const std::string option{ argv[i] }; |
| 60 | std::smatch option_matches; |
| 61 | |
| 62 | if(std::regex_match(option, option_matches, option_regex)) |
| 63 | { |
| 64 | // Boolean option |
| 65 | if(option_matches.str(3).empty()) |
| 66 | { |
| 67 | set_option(option, option_matches.str(2), option_matches.str(1).empty() ? "true" : "false"); |
| 68 | } |
| 69 | else |
| 70 | { |
| 71 | // Can't have "no-" and a value |
| 72 | if(!option_matches.str(1).empty()) |
| 73 | { |
| 74 | _invalid_options.emplace_back(option); |
| 75 | } |
| 76 | else |
| 77 | { |
| 78 | set_option(option, option_matches.str(2), option_matches.str(3)); |
| 79 | } |
| 80 | } |
| 81 | } |
| 82 | else |
| 83 | { |
| 84 | if(positional_index >= _positional_options.size()) |
| 85 | { |
| 86 | _invalid_options.push_back(option); |
| 87 | } |
| 88 | else |
| 89 | { |
| 90 | _positional_options[positional_index]->parse(option); |
| 91 | ++positional_index; |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | bool CommandLineParser::validate() const |
| 98 | { |
| 99 | bool is_valid = true; |
| 100 | |
| 101 | for(const auto &option : _options) |
| 102 | { |
| 103 | if(option.second->is_required() && !option.second->is_set()) |
| 104 | { |
| 105 | is_valid = false; |
| 106 | std::cerr << "ERROR: Option '" << option.second->name() << "' is required but not given!\n"; |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | for(const auto &option : _positional_options) |
| 111 | { |
| 112 | if(option->is_required() && !option->is_set()) |
| 113 | { |
| 114 | is_valid = false; |
| 115 | std::cerr << "ERROR: Option '" << option->name() << "' is required but not given!\n"; |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | for(const auto &option : _unknown_options) |
| 120 | { |
| 121 | std::cerr << "WARNING: Skipping unknown option '" << option << "'!\n"; |
| 122 | } |
| 123 | |
| 124 | for(const auto &option : _invalid_options) |
| 125 | { |
| 126 | std::cerr << "WARNING: Skipping invalid option '" << option << "'!\n"; |
| 127 | } |
| 128 | |
| 129 | return is_valid; |
| 130 | } |
| 131 | |
| 132 | void CommandLineParser::print_help(const std::string &program_name) const |
| 133 | { |
| 134 | std::cout << "usage: " << program_name << " \n"; |
| 135 | |
| 136 | for(const auto &option : _options) |
| 137 | { |
| 138 | std::cout << option.second->help() << "\n"; |
| 139 | } |
| 140 | |
| 141 | for(const auto &option : _positional_options) |
| 142 | { |
| 143 | //FIXME: Print help string as well |
| 144 | std::cout << option->name() << "\n"; |
| 145 | } |
| 146 | } |
| 147 | } // namespace framework |
| 148 | } // namespace test |
| 149 | } // namespace arm_compute |