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

["Ariel Otilibili-Anieli" <Ariel.Otilibili-Anieli@xxxxxxxxxx>]

CCing Luca Fancellu.

On Thursday, December 19, 2024 19:10 CET, Ariel Otilibili 
<Ariel.Otilibili-Anieli@xxxxxxxxxx> wrote:

> 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
>