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Message-ID: <20250801080943.63c64bc8@foz.lan>
Date: Fri, 1 Aug 2025 08:09:43 +0200
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: Jonathan Corbet <corbet@....net>
Cc: linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, Akira Yokosawa
 <akiyks@...il.com>
Subject: Re: [PATCH 11/12] docs: kdoc: extract output formatting from
 dump_struct()

Em Thu, 31 Jul 2025 18:13:25 -0600
Jonathan Corbet <corbet@....net> escreveu:

> The last thing done in dump_struct() is to format the structure for
> printing.  That, too, is a separate activity; split it out into its own
> function.
> 
> dump_struct() now fits in a single, full-hight editor screen.
> 
> Signed-off-by: Jonathan Corbet <corbet@....net>

Splitting it on a separate function LGTM. 

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>

> ---
>  scripts/lib/kdoc/kdoc_parser.py | 72 +++++++++++++++++----------------
>  1 file changed, 37 insertions(+), 35 deletions(-)
> 
> diff --git a/scripts/lib/kdoc/kdoc_parser.py b/scripts/lib/kdoc/kdoc_parser.py
> index 2b7d7e646367..131956d89f84 100644
> --- a/scripts/lib/kdoc/kdoc_parser.py
> +++ b/scripts/lib/kdoc/kdoc_parser.py
> @@ -738,6 +738,42 @@ class KernelDoc:
>              tuples = struct_members.findall(members)
>          return members
>  
> +    #
> +    # Format the struct declaration into a standard form for inclusion in the
> +    # resulting docs.
> +    #
> +    def format_struct_decl(self, declaration):
> +        #
> +        # Insert newlines, get rid of extra spaces.
> +        #
> +        declaration = KernRe(r'([{;])').sub(r'\1\n', declaration)
> +        declaration = KernRe(r'\}\s+;').sub('};', declaration)
> +        #
> +        # Format inline enums with each member on its own line.
> +        #
> +        r = KernRe(r'(enum\s+\{[^}]+),([^\n])')
> +        while r.search(declaration):
> +            declaration = r.sub(r'\1,\n\2', declaration)
> +        #
> +        # Now go through and supply the right number of tabs
> +        # for each line.
> +        #
> +        def_args = declaration.split('\n')
> +        level = 1
> +        declaration = ""
> +        for clause in def_args:
> +            clause = KernRe(r'\s+').sub(' ', clause.strip(), count=1)
> +            if clause:
> +                if '}' in clause and level > 1:
> +                    level -= 1
> +                if not clause.startswith('#'):
> +                    declaration += "\t" * level
> +                declaration += "\t" + clause + "\n"
> +                if "{" in clause and "}" not in clause:
> +                    level += 1
> +        return declaration
> +
> +
>      def dump_struct(self, ln, proto):
>          """
>          Store an entry for an struct or union
> @@ -776,42 +812,8 @@ class KernelDoc:
>          self.create_parameter_list(ln, decl_type, members, ';',
>                                     declaration_name)
>          self.check_sections(ln, declaration_name, decl_type)
> -
> -        # Adjust declaration for better display
> -        declaration = KernRe(r'([{;])').sub(r'\1\n', declaration)
> -        declaration = KernRe(r'\}\s+;').sub('};', declaration)
> -
> -        # Better handle inlined enums
> -        while True:
> -            r = KernRe(r'(enum\s+\{[^}]+),([^\n])')
> -            if not r.search(declaration):
> -                break
> -
> -            declaration = r.sub(r'\1,\n\2', declaration)
> -
> -        def_args = declaration.split('\n')
> -        level = 1
> -        declaration = ""
> -        for clause in def_args:
> -
> -            clause = clause.strip()
> -            clause = KernRe(r'\s+').sub(' ', clause, count=1)
> -
> -            if not clause:
> -                continue
> -
> -            if '}' in clause and level > 1:
> -                level -= 1
> -
> -            if not KernRe(r'^\s*#').match(clause):
> -                declaration += "\t" * level
> -
> -            declaration += "\t" + clause + "\n"
> -            if "{" in clause and "}" not in clause:
> -                level += 1
> -
>          self.output_declaration(decl_type, declaration_name,
> -                                definition=declaration,
> +                                definition=self.format_struct_decl(declaration),
>                                  purpose=self.entry.declaration_purpose)
>  
>      def dump_enum(self, ln, proto):



Thanks,
Mauro

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