Update Plano

external/plano/Makefile

@@ -58,7 +58,7 @@ docs:
 coverage: build
 	python -m venv build/venv
 	. build/venv/bin/activate && pip install --force-reinstall dist/ssorj_plano-*-py3-none-any.whl
-	. build/venv/bin/activate && PYTHONPATH=build/venv/lib/python3.12/site-packages coverage run \
+	. build/venv/bin/activate && PYTHONPATH=build/venv/lib/python3.11/site-packages coverage run \
 		--include build/venv/lib/python\*/site-packages/plano/\*,build/venv/bin/\* \
 		build/venv/bin/plano-self-test
 	coverage report

external/plano/src/plano/_tests.py

@@ -945,11 +945,17 @@ def string_operations():
     result = parse_url("http://example.net/index.html")
     assert result.hostname == "example.net"
 
-    append = Appender()
+    append = StringBuilder()
 
     result = append.join()
     assert result == ""
 
+    append("alpha")
+    append("beta")
+    result = str(append)
+    assert result == "alpha\nbeta"
+
+    append.clear()
     append("abc")
     append("123")
     result = append.join()

external/plano/src/plano/main.py

@@ -1545,16 +1545,22 @@ def parse_url(url):
 
 # A class for building up long strings
 #
-# append = Appender()
+# append = StringBuilder()
 # append("abc")
 # append()
 # append("123")
-# append.join() -> "abc\n\n123"
-class Appender:
+# str(append) -> "abc\n\n123"
+class StringBuilder:
     def __init__(self):
         self._items = list()
 
     def __call__(self, item=""):
+        self.append(item=item)
+
+    def __str__(self):
+        return self.join()
+
+    def append(self, item=""):
         assert item is not None
         self._items.append(str(item))