On Wed, Feb 07, 2018 at 10:26:23AM -0700, Jonathan Corbet wrote:
> Move STATE_INLINE and STATE_DOCBLOCK code out of process_file(), which now
> actually fits on a single screen.  Delete an unused variable and add a
> couple of comments while I'm at it.
> 
> Signed-off-by: Jonathan Corbet <cor...@lwn.net>
> ---
>  scripts/kernel-doc | 145 
> ++++++++++++++++++++++++++++++-----------------------
>  1 file changed, 83 insertions(+), 62 deletions(-)
> 
> diff --git a/scripts/kernel-doc b/scripts/kernel-doc
> index 2deddb876156..c6c9370a1e49 100755
> --- a/scripts/kernel-doc
> +++ b/scripts/kernel-doc
> @@ -1990,10 +1990,86 @@ sub process_proto($$) {
>      }
>  }
>  
> +#
> +# STATE_DOCBLOCK: within a DOC: block.
> +#
> +sub process_docblock($$) {
> +    my $file = shift;
> +
> +    if (/$doc_end/)
> +    {
> +     dump_doc_section($file, $section, $contents);
> +     $section = $section_default;
> +     $contents = "";
> +     $function = "";
> +     %parameterdescs = ();
> +     %parametertypes = ();
> +     @parameterlist = ();
> +     %sections = ();
> +     @sectionlist = ();
> +     $prototype = "";
> +     $state = STATE_NORMAL;
> +    }
> +    elsif (/$doc_content/)
> +    {
> +     if ( $1 eq "" )
> +     {
> +         $contents .= $blankline;
> +     }
> +     else
> +     {
> +         $contents .= $1 . "\n";
> +     }
> +    }
> +}

It doesn't appear to be introduced by you but the brace positions are
non-uniform in this patch.

if
{
  ...
}
else
{
  ...
}

instead of

if {
  ...
} else {
  eee
}

Hope this helps,
Tobin.


(rest of patch left intentionally for reference)

> +
> +#
> +# STATE_INLINE: docbook comments within a prototype.
> +#
> +sub process_inline($$) {
> +    my $file = shift;
> +
> +    # First line (state 1) needs to be a @parameter
> +    if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
> +     $section = $1;
> +     $contents = $2;
> +     $new_start_line = $.;
> +     if ($contents ne "") {
> +         while (substr($contents, 0, 1) eq " ") {
> +             $contents = substr($contents, 1);
> +         }
> +         $contents .= "\n";
> +     }
> +     $inline_doc_state = STATE_INLINE_TEXT;
> +     # Documentation block end */
> +    } elsif (/$doc_inline_end/) {
> +     if (($contents ne "") && ($contents ne "\n")) {
> +         dump_section($file, $section, $contents);
> +         $section = $section_default;
> +         $contents = "";
> +     }
> +     $state = STATE_PROTO;
> +     $inline_doc_state = STATE_INLINE_NA;
> +     # Regular text
> +    } elsif (/$doc_content/) {
> +     if ($inline_doc_state == STATE_INLINE_TEXT) {
> +         $contents .= $1 . "\n";
> +         # nuke leading blank lines
> +         if ($contents =~ /^\s*$/) {
> +             $contents = "";
> +         }
> +     } elsif ($inline_doc_state == STATE_INLINE_NAME) {
> +         $inline_doc_state = STATE_INLINE_ERROR;
> +         print STDERR "${file}:$.: warning: ";
> +         print STDERR "Incorrect use of kernel-doc format: $_";
> +         ++$warnings;
> +     }
> +    }
> +}
> +
>  
>  sub process_file($) {
>      my $file;
> -    my $func;
>      my $initial_section_counter = $section_counter;
>      my ($orig_file) = @_;
>  
> @@ -2014,6 +2090,8 @@ sub process_file($) {
>       }
>       # Replace tabs by spaces
>          while ($_ =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {};
> +
> +     # Hand this line to the appropriate state handler
>       if ($state == STATE_NORMAL) {
>           process_normal();
>       } elsif ($state == STATE_NAME) {
> @@ -2021,72 +2099,15 @@ sub process_file($) {
>       } elsif ($state == STATE_BODY || $state == STATE_BODY_MAYBE) {
>           process_body($file, $_);
>       } elsif ($state == STATE_INLINE) { # scanning for inline parameters
> -         # First line (state 1) needs to be a @parameter
> -         if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
> -             $section = $1;
> -             $contents = $2;
> -                $new_start_line = $.;
> -             if ($contents ne "") {
> -                 while (substr($contents, 0, 1) eq " ") {
> -                     $contents = substr($contents, 1);
> -                 }
> -                 $contents .= "\n";
> -             }
> -             $inline_doc_state = STATE_INLINE_TEXT;
> -         # Documentation block end */
> -         } elsif (/$doc_inline_end/) {
> -             if (($contents ne "") && ($contents ne "\n")) {
> -                 dump_section($file, $section, $contents);
> -                 $section = $section_default;
> -                 $contents = "";
> -             }
> -             $state = STATE_PROTO;
> -             $inline_doc_state = STATE_INLINE_NA;
> -         # Regular text
> -         } elsif (/$doc_content/) {
> -             if ($inline_doc_state == STATE_INLINE_TEXT) {
> -                 $contents .= $1 . "\n";
> -                 # nuke leading blank lines
> -                 if ($contents =~ /^\s*$/) {
> -                     $contents = "";
> -                 }
> -             } elsif ($inline_doc_state == STATE_INLINE_NAME) {
> -                 $inline_doc_state = STATE_INLINE_ERROR;
> -                 print STDERR "${file}:$.: warning: ";
> -                 print STDERR "Incorrect use of kernel-doc format: $_";
> -                 ++$warnings;
> -             }
> -         }
> +         process_inline($file, $_);
>       } elsif ($state == STATE_PROTO) {
>           process_proto($file, $_);
>       } elsif ($state == STATE_DOCBLOCK) {
> -             if (/$doc_end/)
> -             {
> -                     dump_doc_section($file, $section, $contents);
> -                     $section = $section_default;
> -                     $contents = "";
> -                     $function = "";
> -                     %parameterdescs = ();
> -                     %parametertypes = ();
> -                     @parameterlist = ();
> -                     %sections = ();
> -                     @sectionlist = ();
> -                     $prototype = "";
> -                     $state = STATE_NORMAL;
> -             }
> -             elsif (/$doc_content/)
> -             {
> -                     if ( $1 eq "" )
> -                     {
> -                             $contents .= $blankline;
> -                     }
> -                     else
> -                     {
> -                             $contents .= $1 . "\n";
> -                     }
> -             }
> +         process_docblock($file, $_);
>       }
>      }
> +
> +    # Make sure we got something interesting.
>      if ($initial_section_counter == $section_counter) {
>       if ($output_mode ne "none") {
>           print STDERR "${file}:1: warning: no structured comments found\n";
> -- 
> 2.14.3
> 
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