[tools] Fix python DeprecationWarning: invalid escape sequence
The python documentation says "it’s highly recommended that you use raw strings for all but the simplest expressions." (https://docs.python.org/3/library/re.html)
So do that with the attached patch generated by
sed -i -e "s/re.search('/re.search(r'/g" $(git grep -l 're.search(')
The warning can be seen in e.g. python3.7:
$ python3.7 -Wd
>>> import re; re.search('\s', '')
<stdin>:1: DeprecationWarning: invalid escape sequence \s
Commited on behalf of Marco Falke.
Differential Revision: https://reviews.llvm.org/D57528
git-svn-id: svn://svn.chromium.org/llvm-project/cfe/trunk/tools/clang-format@353707 0b72dbe1-c17f-4bc7-b9db-2b4152be0356
diff --git a/clang-format-diff.py b/clang-format-diff.py
index 919c09b..3ba0abe 100755
--- a/clang-format-diff.py
+++ b/clang-format-diff.py
@@ -66,7 +66,7 @@
filename = None
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:
@@ -79,7 +79,7 @@
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