1 files changed, 60 insertions, 0 deletions
diff --git a/src/tools/analyzer/parser.py b/src/tools/analyzer/parser.py
new file mode 100644
index 0000000..742694e
--- /dev/null
+++ b/src/tools/analyzer/parser.py
@@ -0,0 +1,60 @@
+import argparse
+
+
+# Based on patch from https://bugs.python.org/issue9341
+class SubparsersAction(argparse._SubParsersAction):
+    """
+    Provide a subparser action that can create subparsers with ability of
+    grouping arguments.
+
+    It is based on the patch from:
+
+        - https://bugs.python.org/issue9341
+    """
+
+    class _PseudoGroup(argparse.Action):
+        def __init__(self, container, title):
+            super().__init__(option_strings=[], dest=title)
+            self.container = container
+            self._choices_actions = []
+
+        def add_parser(self, name, **kwargs):
+            # add the parser to the main Action, but move the pseudo action
+            # in the group's own list
+            parser = self.container.add_parser(name, **kwargs)
+            choice_action = self.container._choices_actions.pop()
+            self._choices_actions.append(choice_action)
+            return parser
+
+        def _get_subactions(self):
+            return self._choices_actions
+
+        def add_parser_group(self, title):
+            # the formatter can handle recursive subgroups
+            grp = SubparsersAction._PseudoGroup(self, title)
+            self._choices_actions.append(grp)
+            return grp
+
+    def add_parser_group(self, title):
+        """
+        Add new parser group.
+
+        :param title: Title.
+        :type title: str
+        :return: Parser group that can have additional parsers attached.
+        :rtype: ``argparse.Action`` extended with ``add_parser`` method
+        """
+        grp = self._PseudoGroup(self, title)
+        self._choices_actions.append(grp)
+        return grp
+
+
+class Option:
+    """
+    Group option attributes for command/subcommand options
+    """
+    def __init__(self, name, help_msg, opt_type, short_opt=None):
+        self.name = name
+        self.short_opt = short_opt
+        self.help_msg = help_msg
+        self.opt_type = opt_type