Re: [PATCH] checkpatch: look for common misspellings

[Joe Perches]

On Thu, 2014-08-21 at 09:20 -0700, Kees Cook wrote:
> Check for misspellings, based on Debian's lintian list. Several false
> positives were removed, and several additional words added that were
> common in the kernel:
[]
> diff --git a/MAINTAINERS b/MAINTAINERS
[]
> @@ -2311,6 +2311,7 @@ M:	Andy Whitcroft <apw@xxxxxxxxxxxxx>
>  M:	Joe Perches <joe@xxxxxxxxxxx>
>  S:	Maintained
>  F:	scripts/checkpatch.pl
> +F:	scripts/spelling.txt

I don't want to be responsible for misspellings.

Maybe this should be moved to another section
and you could be added as a maintainer for that.
 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> +# Check for several spelling mistakes.
> +		if ($rawline =~ $spelling_re) {

$spelling_re has a rather hidden ( ... ) use so I think
it'd be better to not use spelling_re at all and have a
variable like:
our $misspellings = join('|', @spelling_list);

and also use while so all misspellings are found so this
could be:

		while ($rawline =~ /(?:^|$edge)($misspellings)(?:\$|$edge)/g) {

> +			my $typo = "The word '$1' may be misspelled";
> +			$typo .= " (perhaps you want '$spelling_fix{$1}'?)\n";
> +			WARN("TYPO_SPELLING", $typo . $herecurr);
> +		}
>  	}

Seems sensible, but this checks only .c and .h files.
Any of the Kconfig/.txt files are skipped.

I'd probably leave out "The word "

Maybe add a $fix too?

Maybe:

		while ($rawline =~ /(?:^|$edge)($misspellings)(?:\$|$edge)/g) {
			my $typo = $1;
			if (WARN("TYPO_SPELLING",
				 "$typo may be misspelled - Use '$spelling_fix($typo)'?\n" . $herecurr) &&
			    $fix) {
				$fixed[$fixlinenr] =~ s/(?:^|$edge)($typo)(?:\$|$edge)/$spelling_fix($typo)/;
			}
		}


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