COMPMID-415: New framework - command line [5/5]
Change-Id: I4fb658c7fa24f40ef8f87239cc803d69ee89fd4d
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/79759
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
diff --git a/framework/command_line/CommandLineParser.cpp b/framework/command_line/CommandLineParser.cpp
new file mode 100644
index 0000000..228b18d
--- /dev/null
+++ b/framework/command_line/CommandLineParser.cpp
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2017 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "CommandLineParser.h"
+
+#include <iostream>
+#include <regex>
+
+namespace arm_compute
+{
+namespace test
+{
+namespace framework
+{
+void CommandLineParser::parse(int argc, char **argv)
+{
+ const std::regex option_regex{ "--((?:no-)?)([^=]+)(?:=(.*))?" };
+
+ const auto set_option = [&](const std::string & option, const std::string & name, const std::string & value)
+ {
+ if(_options.find(name) == _options.end())
+ {
+ _unknown_options.push_back(option);
+ return;
+ }
+
+ const bool success = _options[name]->parse(value);
+
+ if(!success)
+ {
+ _invalid_options.push_back(option);
+ }
+ };
+
+ unsigned int positional_index = 0;
+
+ for(int i = 1; i < argc; ++i)
+ {
+ const std::string option{ argv[i] };
+ std::smatch option_matches;
+
+ if(std::regex_match(option, option_matches, option_regex))
+ {
+ // Boolean option
+ if(option_matches.str(3).empty())
+ {
+ set_option(option, option_matches.str(2), option_matches.str(1).empty() ? "true" : "false");
+ }
+ else
+ {
+ // Can't have "no-" and a value
+ if(!option_matches.str(1).empty())
+ {
+ _invalid_options.emplace_back(option);
+ }
+ else
+ {
+ set_option(option, option_matches.str(2), option_matches.str(3));
+ }
+ }
+ }
+ else
+ {
+ if(positional_index >= _positional_options.size())
+ {
+ _invalid_options.push_back(option);
+ }
+ else
+ {
+ _positional_options[positional_index]->parse(option);
+ ++positional_index;
+ }
+ }
+ }
+}
+
+bool CommandLineParser::validate() const
+{
+ bool is_valid = true;
+
+ for(const auto &option : _options)
+ {
+ if(option.second->is_required() && !option.second->is_set())
+ {
+ is_valid = false;
+ std::cerr << "ERROR: Option '" << option.second->name() << "' is required but not given!\n";
+ }
+ }
+
+ for(const auto &option : _positional_options)
+ {
+ if(option->is_required() && !option->is_set())
+ {
+ is_valid = false;
+ std::cerr << "ERROR: Option '" << option->name() << "' is required but not given!\n";
+ }
+ }
+
+ for(const auto &option : _unknown_options)
+ {
+ std::cerr << "WARNING: Skipping unknown option '" << option << "'!\n";
+ }
+
+ for(const auto &option : _invalid_options)
+ {
+ std::cerr << "WARNING: Skipping invalid option '" << option << "'!\n";
+ }
+
+ return is_valid;
+}
+
+void CommandLineParser::print_help(const std::string &program_name) const
+{
+ std::cout << "usage: " << program_name << " \n";
+
+ for(const auto &option : _options)
+ {
+ std::cout << option.second->help() << "\n";
+ }
+
+ for(const auto &option : _positional_options)
+ {
+ //FIXME: Print help string as well
+ std::cout << option->name() << "\n";
+ }
+}
+} // namespace framework
+} // namespace test
+} // namespace arm_compute