-----Original Message-----
From: Intel-wired-lan <redacted> On Behalf
Of Mauro Carvalho Chehab
Sent: Thursday, January 29, 2026 9:08 AM
To: Jonathan Corbet <corbet@lwn.net>; Linux Doc Mailing List <linux-
doc@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>;
bpf@vger.kernel.org; intel-wired-lan@lists.osuosl.org; linux-
hardening@vger.kernel.org; linux-kernel@vger.kernel.org;
netdev@vger.kernel.org; Mauro Carvalho Chehab [off-list ref];
Randy Dunlap [off-list ref]
Subject: [Intel-wired-lan] [PATCH v3 15/30] docs: kdoc_re: properly
handle strings and escape chars on it

The logic inside NestedMatch currently doesn't consider that function
arguments may have chars and strings, which may eventually contain
delimiters.

Add logic to handle strings and escape characters on them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 tools/lib/python/kdoc/kdoc_re.py | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/tools/lib/python/kdoc/kdoc_re.py

b/tools/lib/python/kdoc/kdoc_re.py
index a0402c065d3a..1861799f1966 100644

--- a/tools/lib/python/kdoc/kdoc_re.py
+++ b/tools/lib/python/kdoc/kdoc_re.py

@@ -195,6 +195,8 @@ class NestedMatch:
         for match_re in regex.finditer(line):
             start = match_re.start()
             offset = match_re.end()
+            string_char = None
+            escape = False

             d = line[offset - 1]
             if d not in self.DELIMITER_PAIRS:

@@ -208,6 +210,22 @@ class NestedMatch:

                 d = line[pos]

+                if escape:
+                    escape = False
+                    continue
+
+                if string_char:
+                    if d == '\\':
+                        escape = True
+                    elif d == string_char:
+                        string_char = None
+
+                    continue
+
+                if d in ('"', "'"):
+                    string_char = d
+                    continue
+
                 if d in self.DELIMITER_PAIRS:
                     end = self.DELIMITER_PAIRS[d]

--

2.52.0