From 9fa0fa281017082f46d34522248bde7c08bcaa13 Mon Sep 17 00:00:00 2001
From: Subhash Gupta <subhashgupta1591@gmail.com>
Date: Wed, 4 Mar 2026 22:06:53 +0530
Subject: [PATCH] fix: replace invalid escape sequences in docstrings

Replace bare \d and \S in docstrings with escaped versions \d and \S
to fix DeprecationWarning: invalid escape sequence in Python 3.12+

Affected files:
- application/database/db.py: line 1809
- application/web/web_main.py: line 467
---
 application/database/db.py  | 4 ++--
 application/web/web_main.py | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/application/database/db.py b/application/database/db.py
index 6c1613277..6b0190dfb 100644
--- a/application/database/db.py
+++ b/application/database/db.py
@@ -1806,7 +1806,7 @@ def text_search(self, text: str) -> List[Optional[cre_defs.Document]]:
            'CRE:<name>' will search for the <name> in cre names
            '<Node type e.g. Standard>:<name>[:<section><sectionID>:<subsection>:<hyperlink>]' will search for
                all entries of <name> and optionally, section/subsection
-           '\d\d\d-\d\d\d' (two sets of 3 digits) will first try to match
+           '\\d\\d\\d-\\d\\d\\d' (two sets of 3 digits) will first try to match
                 CRE ids before it performs a free text search
            Anything else will be a case insensitive LIKE query in the database
         """
@@ -1818,7 +1818,7 @@ def text_search(self, text: str) -> List[Optional[cre_defs.Document]]:
         node_search = (
             r"(Node|(?P<ntype>"
             + types
-            + "))?((:| )?(?P<link>https?://\S+))?((:| )(?P<val>.+$))?"
+            + r"))?((:| )?(?P<link>https?://\S+))?((:| )(?P<val>.+$))?"
         )
         match = re.search(cre_id_search, text, re.IGNORECASE)
         if match:
diff --git a/application/web/web_main.py b/application/web/web_main.py
index 6738a0109..9350309e0 100644
--- a/application/web/web_main.py
+++ b/application/web/web_main.py
@@ -465,7 +465,7 @@ def text_search() -> Any:
         * 'CRE:<name>' will search for the <name> in cre names
         * 'Standard:<name>[:<section>:subsection]' will search for
               all entries of <name> and optionally, section/subsection
-        * '\d\d\d-\d\d\d' (two sets of 3 digits) will first try to match
+        * '\\d\\d\\d-\\d\\d\\d' (two sets of 3 digits) will first try to match
                            CRE ids before it performs a free text search
         Anything else will be a case insensitive LIKE query in the database
     """