[PATCH 1/2] utils: checkstyle.py: Use r'' strings for regular expressions

[Kieran Bingham]

Quoting Laurent Pinchart (2024-04-16 11:20:03)
> It's a good practice to use r'' strings for regular expressions in
> Python, to avoid unexpected interaction with string escape sequences.
> Use them globally. This allows simplifying escaping in one of the
> regular expression strings.
> 


Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>

> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---
>  utils/checkstyle.py | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/utils/checkstyle.py b/utils/checkstyle.py
> index 84f44a422577..2ab7e50fb0b6 100755
> --- a/utils/checkstyle.py
> +++ b/utils/checkstyle.py
> @@ -569,7 +569,7 @@ class IncludeChecker(StyleChecker):
>                 'limits', 'locale', 'setjmp', 'signal', 'stdarg', 'stddef',
>                 'stdint', 'stdio', 'stdlib', 'string', 'time', 'uchar', 'wchar',
>                 'wctype')
> -    include_regex = re.compile('^#include <c([a-z]*)>')
> +    include_regex = re.compile(r'^#include <c([a-z]*)>')
>  
>      def __init__(self, content):
>          super().__init__()
> @@ -632,7 +632,7 @@ class MesonChecker(StyleChecker):
>  
>  class Pep8Checker(StyleChecker):
>      patterns = ('*.py',)
> -    results_regex = re.compile('stdin:([0-9]+):([0-9]+)(.*)')
> +    results_regex = re.compile(r'stdin:([0-9]+):([0-9]+)(.*)')
>  
>      def __init__(self, content):
>          super().__init__()
> @@ -665,7 +665,7 @@ class Pep8Checker(StyleChecker):
>  
>  class ShellChecker(StyleChecker):
>      patterns = ('*.sh',)
> -    results_line_regex = re.compile('In - line ([0-9]+):')
> +    results_line_regex = re.compile(r'In - line ([0-9]+):')
>  
>      def __init__(self, content):
>          super().__init__()
> @@ -753,7 +753,7 @@ class CLangFormatter(Formatter):
>  class DoxygenFormatter(Formatter):
>      patterns = ('*.c', '*.cpp')
>  
> -    return_regex = re.compile(' +\\* +\\\\return +[a-z]')
> +    return_regex = re.compile(r' +\* +\\return +[a-z]')
>  
>      @classmethod
>      def format(cls, filename, data):
> @@ -813,7 +813,7 @@ class DPointerFormatter(Formatter):
>  class IncludeOrderFormatter(Formatter):
>      patterns = ('*.cpp', '*.h')
>  
> -    include_regex = re.compile('^#include (["<])([^">]*)([">])')
> +    include_regex = re.compile(r'^#include (["<])([^">]*)([">])')
>  
>      @classmethod
>      def format(cls, filename, data):
> -- 
> Regards,
> 
> Laurent Pinchart
>