pre-big change

formatter.py

@@ -24,7 +24,9 @@ END_RE = re.compile(r"^\s*end\b")
 
 
 def format_modelica(text: str) -> str:
-    lines = text.replace("\t", "    ").splitlines()
+    normalized = text.replace("\r\n", "\n").replace("\r", "\n").replace("\t", "    ")
+    had_trailing_newline = normalized.endswith("\n")
+    lines = normalized.split("\n")
     out = []
     indent = 0
 
@@ -63,7 +65,10 @@ def format_modelica(text: str) -> str:
         elif SECTION_RE.match(stripped):
             indent += 1
 
-    return "\n".join(out) + "\n"
+    formatted = "\n".join(out)
+    if had_trailing_newline:
+        return formatted
+    return formatted + "\n"
 
 
 def main():