From 627c97e63c563ae04eca9aa1baeca99eac6c365a Mon Sep 17 00:00:00 2001
From: Rui Chen <rui@chenrui.dev>
Date: Tue, 19 Dec 2023 08:38:41 -0800
Subject: [PATCH] chore: fix `SyntaxWarning: invalid escape sequence +` for
 py3.12

```
/opt/homebrew/Cellar/google-java-format/1.19.0/bin/google-java-format-diff:78: SyntaxWarning: invalid escape sequence '\+'
  match = re.search('^\+\+\+\ (.*?/){%s}(\S*)' % args.p, line)
/opt/homebrew/Cellar/google-java-format/1.19.0/bin/google-java-format-diff:91: SyntaxWarning: invalid escape sequence '\+'
  match = re.search('^@@.*\+(\d+)(,(\d+))?', line)
```

relates to https://github.com/Homebrew/homebrew-core/pull/157669

cc @cushon

Fixes #1017

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/google-java-format/pull/1017 from chenrui333:py3.12 36d80d13a9b76b11d0ffbafb0ab5d87e1101d5ba
PiperOrigin-RevId: 592246854
---
 scripts/google-java-format-diff.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/scripts/google-java-format-diff.py b/scripts/google-java-format-diff.py
index 151ae33d9..2c75edac7 100755
--- a/scripts/google-java-format-diff.py
+++ b/scripts/google-java-format-diff.py
@@ -1,13 +1,13 @@
 #!/usr/bin/env python3
 #
-#===- google-java-format-diff.py - google-java-format Diff Reformatter -----===#
+# ===- google-java-format-diff.py - google-java-format Diff Reformatter -----===#
 #
 #                     The LLVM Compiler Infrastructure
 #
 # This file is distributed under the University of Illinois Open Source
 # License. See LICENSE.TXT for details.
 #
-#===------------------------------------------------------------------------===#
+# ===------------------------------------------------------------------------===#
 
 """
 google-java-format Diff Reformatter
@@ -75,7 +75,7 @@ def main():
   lines_by_file = {}
 
   for line in sys.stdin:
-    match = re.search('^\+\+\+\ (.*?/){%s}(\S*)' % args.p, line)
+    match = re.search(r'^\+\+\+\ (.*?/){%s}(\S*)' % args.p, line)
     if match:
       filename = match.group(2)
     if filename == None:
@@ -88,7 +88,7 @@ def main():
       if not re.match('^%s$' % args.iregex, filename, re.IGNORECASE):
         continue
 
-    match = re.search('^@@.*\+(\d+)(,(\d+))?', line)
+    match = re.search(r'^@@.*\+(\d+)(,(\d+))?', line)
     if match:
       start_line = int(match.group(1))
       line_count = 1