Detect links with brackets

md_dead_link_check/preprocess.py

@@ -9,7 +9,7 @@
 from git import Repo
 
 RE_HEADER = r"^[#]{1,6}\s*(.*)"
-RE_LINK = r"([!]{0,1})\[([^\]!]*)\]\(([^\s)]+)(?:\s*(.*?))?\)"
+RE_LINK = r"([!]{0,1})\[([^\]!]*)\]\(([^()\s]+(?:\([^()\s]*\))*)\s*(.*?)\)"
 RE_HTML_A_TAG_ID = r"<\w+\s+(?:[^>]*?\s+)?id=([\"'])(.*?)\1"
 RE_HTML_A_TAG_HREF = r"<\w+\s+(?:[^>]*?\s+)?href=([\"'])(.*?)\1"
 RE_SUB = r"[$`][^`]+?[$`]"

tests/test_link_cheker.py

@@ -37,7 +37,8 @@ def test_fails():
     # Output message depends on proxy settings
     ret[1].err_msg = None
     ret[1].warn_msg = None
-
+    ret[7].err_msg = None
+    ret[7].warn_msg = None
     ref = [
         StatusInfo(
             link_info=LinkInfo(
@@ -91,6 +92,15 @@ def test_fails():
             err_msg="Unknown error",
             warn_msg=None,
         ),
+        StatusInfo(
+            link_info=LinkInfo(
+                link="https://example.com/(bracket)",
+                location=Path("tests/test_md_files/fail.md"),
+                line_num=19,
+            ),
+            err_msg=None,
+            warn_msg=None,
+        ),
     ]
     assert ret == ref
 
@@ -126,6 +136,8 @@ def test_exclude_links(exclude_links):
     # Output message depends on proxy settings
     ret[0].err_msg = None
     ret[0].warn_msg = None
+    ret[4].err_msg = None
+    ret[4].warn_msg = None
 
     ref = [
         StatusInfo(
@@ -162,5 +174,14 @@ def test_exclude_links(exclude_links):
             err_msg="Unknown error",
             warn_msg=None,
         ),
+        StatusInfo(
+            link_info=LinkInfo(
+                link="https://example.com/(bracket)",
+                location=Path("tests/test_md_files/fail.md"),
+                line_num=19,
+            ),
+            err_msg=None,
+            warn_msg=None,
+        ),
     ]
     assert ret == ref

tests/test_md_files/fail.md

@@ -15,3 +15,5 @@
 [1](not_exist_dir)
 
 [1](error://urls/)
+
+[1](https://example.com/(bracket))