fix(markdown): parse escaped wikilink aliases

graphify/extractors/markdown.py

@@ -15,7 +15,7 @@ _MD_INLINE_LINK_RE = re.compile(r'(?<!\!)\[[^\]]*\]\(\s*<?([^)\s>]+)>?(?:\s+[^)]
 
 _MD_REF_DEF_RE = re.compile(r'^\s{0,3}\[[^\]]+\]:\s*<?([^\s>]+)>?')
 
-_MD_WIKILINK_RE = re.compile(r'(?<!\!)\[\[([^\]|#]+)(?:[#|][^\]]*)?\]\]')
+_MD_WIKILINK_RE = re.compile(r'(?<!\!)\[\[([^\]|#]+?)(?:\\?\|[^\]]*|#[^\]]*)?\]\]')
 
 _MD_LINKABLE_EXTS = {".md", ".mdx", ".qmd", ".markdown", ".rst", ".txt"}
 

tests/test_languages.py

@@ -3037,6 +3037,18 @@ def test_markdown_wikilink_vault_fallback(tmp_path):
         assert e["target"] in node_ids, f"link target is a ghost node: {e}"
 
 
+@pytest.mark.parametrize("separator", ["|", "\\|"])
+def test_markdown_wikilink_alias_separator(tmp_path, separator):
+    r"""Obsidian table aliases escape the pipe as ``\|``."""
+    target = tmp_path / "target.md"
+    source = tmp_path / "source.md"
+    target.write_text("# Target\n")
+    source.write_text(f"| Link |\n| --- |\n| [[target{separator}Alias]] |\n")
+    refs = [e for e in extract_markdown(source)["edges"]
+            if e["relation"] == "references"]
+    assert [e.get("target_file") for e in refs] == [str(target)]
+
+
 def test_markdown_wikilink_fallback_path_qualified(tmp_path):
     """[[folder/name]] from a subfolder matches on the full segment suffix."""
     vault = tmp_path / "vault"