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[PATCH 1/1] xen/scripts: Fix regex syntax warnings with Python 3.12



Same fix than commit 826a9eb072 (tools: Fix regex syntax warnings with Python 
3.12).

It clears out the warning:

```
$ xen/scripts/xen-analysis.py
xen/scripts/xen_analysis/cppcheck_analysis.py:94: SyntaxWarning: invalid escape 
sequence '\*'
  comment_line_starts = re.match('^[ \t]*/\*.*$', line)
```

The  warning appears only the first time the command is run, then it disappears.

Fixes: 02b26c02c7 (xen/scripts: add cppcheck tool to the xen-analysis.py script)
Signed-off-by: Ariel Otilibili <Ariel.Otilibili-Anieli@xxxxxxxxxx>
--
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Cc: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Cc: Michal Orzel <michal.orzel@xxxxxxx>
Cc: Jan Beulich <jbeulich@xxxxxxxx>
Cc: Julien Grall <julien@xxxxxxx>
Cc: "Roger Pau Monné" <roger.pau@xxxxxxxxxx>
Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/scripts/xen_analysis/cppcheck_analysis.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/scripts/xen_analysis/cppcheck_analysis.py 
b/xen/scripts/xen_analysis/cppcheck_analysis.py
index ce7bda91b6..532a14b0ad 100644
--- a/xen/scripts/xen_analysis/cppcheck_analysis.py
+++ b/xen/scripts/xen_analysis/cppcheck_analysis.py
@@ -91,7 +91,7 @@ def __generate_suppression_list(out_file):
                         line = header_content[tmp_line]
                         # Matches a line with just optional spaces/tabs and the
                         # start of a comment '/*'
-                        comment_line_starts = re.match('^[ \t]*/\*.*$', line)
+                        comment_line_starts = re.match(r'^[ \t]*/\*.*$', line)
                         # Matches a line with text and the end of a comment 
'*/'
                         comment_line_stops = re.match(r'^.*\*/$', line)
                         if (not comment_section) and comment_line_starts:
-- 
2.47.1




 


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