support *.xml file format

src/experiment_generator/tmp_parser/xml_config.py

@@ -0,0 +1,32 @@
+from lxml import etree
+from pathlib import Path
+
+
+def read_xml(path: Path) -> etree._ElementTree:
+    """
+    Parses an XML file and returns its ElementTree.
+    It preserves indentation and formatting.
+    """
+
+    parser = etree.XMLParser(
+        remove_blank_text=True,
+        remove_comments=False,
+        strip_cdata=False,
+        resolve_entities=False,
+    )
+
+    return etree.parse(str(path), parser)
+
+
+def write_xml(tree: etree._ElementTree, path: Path) -> None:
+    """
+    Writes an ElementTree to an XML file, preserving formatting.
+    """
+    tmp = path.with_suffix(path.suffix + ".tmp")
+    tree.write(
+        str(tmp),
+        pretty_print=True,
+        xml_declaration=True,
+        encoding="utf-8",
+    )
+    tmp.replace(path)