Apply refurb/ruff rule FURB167 (#11857)

Co-authored-by: Adam Turner <[email protected]>

Author: DimitriPapadopoulos

sphinx/domains/c.py

@@ -101,7 +101,7 @@
 # so when _max_id changes, make sure to update the ENV_VERSION.
 
 _string_re = re.compile(r"[LuU8]?('([^'\\]*(?:\\.[^'\\]*)*)'"
-                        r'|"([^"\\]*(?:\\.[^"\\]*)*)")', re.S)
+                        r'|"([^"\\]*(?:\\.[^"\\]*)*)")', re.DOTALL)
 
 # bool, complex, and imaginary are macro "keywords", so they are handled separately
 _simple_type_specifiers_re = re.compile(r"""

sphinx/domains/cpp.py

@@ -312,7 +312,7 @@
     [a-zA-Z_][a-zA-Z0-9_]*\b   # note, no word boundary in the beginning
 ''', re.VERBOSE)
 _string_re = re.compile(r"[LuU8]?('([^'\\]*(?:\\.[^'\\]*)*)'"
-                        r'|"([^"\\]*(?:\\.[^"\\]*)*)")', re.S)
+                        r'|"([^"\\]*(?:\\.[^"\\]*)*)")', re.DOTALL)
 _visibility_re = re.compile(r'\b(public|private|protected)\b')
 _operator_re = re.compile(r'''
         \[\s*\]

sphinx/domains/std.py

@@ -34,7 +34,7 @@
 # RE for option descriptions
 option_desc_re = re.compile(r'((?:/|--|-|\+)?[^\s=]+)(=?\s*.*)')
 # RE for grammar tokens
-token_re = re.compile(r'`((~?\w*:)?\w+)`', re.U)
+token_re = re.compile(r'`((~?\w*:)?\w+)`')
 
 samp_role = EmphasizedLiteral()
 

sphinx/ext/napoleon/docstring.py

@@ -145,7 +145,7 @@ class GoogleDocstring:
     """
 
     _name_rgx = re.compile(r"^\s*((?::(?P<role>\S+):)?`(?P<name>~?[a-zA-Z0-9_.-]+)`|"
-                           r" (?P<name2>~?[a-zA-Z0-9_.-]+))\s*", re.X)
+                           r" (?P<name2>~?[a-zA-Z0-9_.-]+))\s*", re.VERBOSE)
 
     def __init__(
         self,

sphinx/roles.py

@@ -324,11 +324,11 @@ def parse(self, text: str) -> list[Node]:
         return result
 
 
-_abbr_re = re.compile(r'\((.*)\)$', re.S)
+_abbr_re = re.compile(r'\((.*)\)$', re.DOTALL)
 
 
 class Abbreviation(SphinxRole):
-    abbr_re = re.compile(r'\((.*)\)$', re.S)
+    abbr_re = re.compile(r'\((.*)\)$', re.DOTALL)
 
     def run(self) -> tuple[list[Node], list[system_message]]:
         options = self.options.copy()