backend/sdoc: prepare model for [[SECTION]] migration

strictdoc/backend/sdoc/grammar/grammar.py

@@ -185,7 +185,7 @@
     (relations += Reference)
   )?
 
-  section_contents *= SpaceThenRequirement
+  section_contents *= SectionOrRequirement
 
   '\n'
   '[[/' node_type_close = RequirementType ']]' '\n'

strictdoc/backend/sdoc/models/node.py

@@ -31,6 +31,7 @@
 )
 from strictdoc.helpers.auto_described import auto_described
 from strictdoc.helpers.cast import assert_cast
+from strictdoc.helpers.exception import StrictDocException
 from strictdoc.helpers.mid import MID
 from strictdoc.helpers.string import ensure_newline
 
@@ -121,10 +122,17 @@ def __init__(
         ] = parent
 
         self.node_type: str = node_type
-        # FIXME: MERGE NODES
+
         if node_type_close is not None and len(node_type_close) > 0:
-            assert node_type == node_type_close
+            if node_type != node_type_close:
+                raise StrictDocException(
+                    "[[NODE]] syntax error: "
+                    "Opening and closing tags must match: "
+                    f"opening: {node_type}, closing: {node_type_close}."
+                )
             assert is_composite
+        else:
+            assert not is_composite
 
         self.is_composite: bool = is_composite
 

strictdoc/backend/sdoc/processor.py

@@ -64,6 +64,7 @@ def get_default_processors(self):
             "SDocSection": self.process_section,
             "DocumentFromFile": self.process_document_from_file,
             "SDocCompositeNode": self.process_composite_requirement,
+            "SDocCompositeNodeNew": self.process_requirement,
             "SDocNode": self.process_requirement,
             "SDocNodeField": self.process_node_field,
         }

strictdoc/server/reload_config.py

@@ -57,6 +57,7 @@ def create(
                 + cls.expand_folder("dist", max_depth=3)
                 + cls.expand_folder("tests", max_depth=15)
                 + cls.expand_folder("output", max_depth=15)
+                + cls.expand_folder("Output", max_depth=15)
             )
 
             # Changing typical StrictDoc's own source code files should trigger

tests/unit/strictdoc/backend/sdoc/test_dsl_passthrough.py

@@ -15,6 +15,7 @@
 )
 from strictdoc.backend.sdoc.reader import SDReader
 from strictdoc.backend.sdoc.writer import SDWriter
+from strictdoc.helpers.exception import StrictDocException
 
 
 def test_001_minimal_doc(default_project_config):
@@ -964,6 +965,30 @@ def test_089_document_config_use_mid(default_project_config):
     assert input_sdoc == output
 
 
+def test__validation__30__composite_node_start_end_tags_do_not_match():
+    input_sdoc = """\
+[DOCUMENT]
+TITLE: Test Doc
+
+[[REQUIREMENT]]
+UID: TITLE
+
+[[/FOOBAR]]
+""".lstrip()
+
+    reader = SDReader()
+
+    with pytest.raises(Exception) as exc_info:
+        _ = reader.read(input_sdoc)
+
+    assert exc_info.type is StrictDocException
+    assert exc_info.value.args[0] == (
+        "[[NODE]] syntax error: "
+        "Opening and closing tags must match: "
+        "opening: REQUIREMENT, closing: FOOBAR."
+    )
+
+
 def test_edge_case_01_minimal_requirement(default_project_config):
     input_sdoc = """
 [DOCUMENT]