fix: ignore links in code after literal dollar during link validation (#691)

Signed-off-by: squidfunk <martin.donath@squidfunk.com>

python/tests/unit/collectors/test_references.py

@@ -1854,6 +1854,11 @@ class TestMath:
         refs = collect(md)
         assert len(refs) == 0
 
+    def test_no_math_inline_across_code(self) -> None:
+        md = b"| <span>$<span> | `#!python 'ab$'` | `#!python '[abc]'` |"
+        refs = collect(md)
+        assert len(refs) == 0
+
     @pytest.mark.parametrize(
         "md",
         [

python/zensical/collectors/references/cursor.py

@@ -1042,6 +1042,8 @@ def _scan_math_inline(cursor: Cursor) -> int | None:
 
     # Scan for closing $
     while end < cursor.end and cursor.data[end] not in (_CR, _NL):
+        if cursor.data[end] == _BACKTICK:
+            return None
         if (
             cursor.data[end] == _DOLLAR
             # Closing $ must not be preceded by whitespace or $