Fix doctest empty line parsing error (#176)

Author: felix-hilden

docs/src/release_notes.rst

@@ -11,6 +11,7 @@ sphinx-codeautolink adheres to
 Unreleased
 ----------
 - Fix attribute and call after walrus leading parser error (:issue:`174`)
+- Fix parsing error in doctest blocks with empty lines (:issue:`176`)
 - Improve error message on uncaught parsing errors (:issue:`177`)
 
 0.17.0 (2025-02-18)

src/sphinx_codeautolink/extension/block.py

@@ -50,7 +50,7 @@ def clean_pycon(source: str) -> tuple[str, str]:
         if line.startswith(">>> "):
             in_statement = True
             clean_lines.append(line[4:])
-        elif in_statement and line.startswith("... "):
+        elif in_statement and line.startswith("..."):
             clean_lines.append(line[4:])
         else:
             in_statement = False

tests/extension/ref/lexer_doctest_empty_input.txt

@@ -0,0 +1,15 @@
+# split
+# split
+Test project
+============
+
+>>> ast.dump(ast.parse("""\
+... for a in b:
+...     if a > 5:
+...         break
+...     else:
+...         continue
+...
+... """), indent=4)
+
+.. automodule:: test_project