initial

s_basic/code_segments/abc.py

@@ -0,0 +1,19 @@
+"""
+This module provides abstract code segment classes.
+"""
+
+
+from abc import ABC, abstractmethod
+
+class AbstractCodeSegment(ABC):
+	@abstractmethod
+	def parse(self):
+		pass
+
+class AbstractNestingCodeSegment(AbstractCodeSegment):
+	@abstractmethod
+	def parse_children(self):
+		pass
+	@abstractmethod
+	def parse_child(self):
+		pass

s_basic/code_segments/statements.py

@@ -0,0 +1,12 @@
+"""
+This module provides statement classes.
+"""
+
+from .abc import AbstractCodeSegment
+
+class VariableDefinitionStatement(AbstractCodeSegment):
+	def __init__(self, parsing_context):
+		self.parsing_context = parsing_context
+
+	def parse(self):
+