1 files changed, 70 insertions, 0 deletions
diff --git a/samples/common/src/Utils/CmdArgsParser.cpp b/samples/common/src/Utils/CmdArgsParser.cpp
new file mode 100644
index 0000000000..1f09826a8b
--- /dev/null
+++ b/samples/common/src/Utils/CmdArgsParser.cpp
@@ -0,0 +1,70 @@
+//
+// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "CmdArgsParser.hpp"
+#include <iostream>
+/*
+ * Checks that a particular option was specified by the user
+ */
+bool CheckOptionSpecified(const std::map<std::string, std::string>& options, const std::string& option)
+{
+    auto it = options.find(option);
+    return it!=options.end();
+}
+
+/*
+ * Retrieves the user provided option
+ */
+std::string GetSpecifiedOption(const std::map<std::string, std::string>& options, const std::string& option)
+{
+    if (CheckOptionSpecified(options, option)){
+        return options.at(option);
+    }
+    else
+    {
+        throw std::invalid_argument("Required option: " + option + " not defined.");
+    }
+}
+
+/*
+ * Parses all the command line options provided by the user and stores in a map.
+ */
+int ParseOptions(std::map<std::string, std::string>& options, std::map<std::string, std::string>& acceptedOptions,
+                 char *argv[], int argc)
+{
+    for (int i = 1; i < argc; ++i)
+    {
+        std::string currentOption = std::string(argv[i]);
+        auto it = acceptedOptions.find(currentOption);
+        if (it != acceptedOptions.end())
+        {
+            if (i + 1 < argc && std::string(argv[i + 1]).rfind("--", 0) != 0)
+            {
+                std::string value = argv[++i];
+                options.insert({it->first, value});
+            }
+            else if (std::string(argv[i]) == "HELP")
+            {
+                std::cout << "Available options" << std::endl;
+                for (auto & acceptedOption : acceptedOptions)
+                {
+                    std::cout << acceptedOption.first << " : " << acceptedOption.second << std::endl;
+                }
+                return 2;
+            }
+            else
+            {
+                std::cerr << std::string(argv[i]) << " option requires one argument." << std::endl;
+                return 1;
+            }
+        }
+        else
+        {
+            std::cerr << "Unrecognised option: " << std::string(argv[i]) << std::endl;
+            return 1;
+        }
+    }
+    return 0;
+}