fixed indentation issue on empty lines

Author: Apollo-Roboto

pathschema/parser.py

@@ -67,13 +67,6 @@ def schema_to_node_tree(self, schema: str) -> DirPathNode:
 		last_indentation = 0
 
 		for line_num, line in enumerate(schema.split('\n')):
-			indentation = self._indentation_count(line, line_num+1)
-
-			if indentation > last_indentation + 1:
-				raise SchemaError('Inconsistent indentation.', line_num+1)
-
-			last_indentation = indentation
-			
 			name = line.strip()
 			if len(name) == 0:
 				continue
@@ -82,6 +75,13 @@ def schema_to_node_tree(self, schema: str) -> DirPathNode:
 			if name.startswith(self.comment_token):
 				continue
 
+			indentation = self._indentation_count(line, line_num+1)
+
+			if indentation > last_indentation + 1:
+				raise SchemaError('Inconsistent indentation.', line_num+1)
+
+			last_indentation = indentation
+
 			# add node
 			if indentation == node_depth:
 				pass

tests/test_Parser.py

@@ -218,6 +218,30 @@ def test_schema_to_node_tab_indentation_pass(self):
 
 		self.assertEqual(expected_tree, returned_tree)
 
+	def test_schema_to_node_indentation_empty_line_pass(self):
+		schema =  'Assets/\n'
+		schema += '  *.txt\n'
+		schema += '  Textures/\n'
+		schema += '    *.png\n'
+		schema += '\n'
+		schema += '    *.jpg\n'
+		
+		returned_tree = Parser().schema_to_node_tree(schema)
+
+		expected_tree = DirPathNode(name='schema_root') \
+			.add_child(DirPathNode(name='Assets')
+				.add_child(FilePathNode(name='*.txt'))
+				.add_child(DirPathNode(name='Textures')
+					.add_child(FilePathNode(name='*.png'))
+					.add_child(FilePathNode(name='*.jpg'))
+				)
+			)
+
+		print_node_tree(expected_tree)
+		print_node_tree(returned_tree)
+
+		self.assertEqual(expected_tree, returned_tree)
+
 	def test_schema_to_node_inconsistent_indentation_one_fail(self):
 		"""Uses 4 spaces instead of 2"""
 		schema =  'Assets/\n'