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checkpatch: use utf-8 match for spell checking

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The current code that checks for misspelling verifies, in a more
complex regex, if $rawline matches [^\w]($misspellings)[^\w]

Being $rawline a byte-string, a utf-8 character in $rawline can
match the non-word-char [^\w].
E.g.:
	./scripts/checkpatch.pl --git 81c2f059ab9
	WARNING: 'ment' may be misspelled - perhaps 'meant'?
	#36: FILE: MAINTAINERS:14360:
	+M:     Clément Léger <clement.leger@bootlin.com>
	            ^^^^

Use a utf-8 version of $rawline for spell checking.

Link: https://lkml.kernel.org/r/20250616-b4-checkpatch-upstream-v2-1-5600ce4a3b43@foss.st.com
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Signed-off-by: Clément Le Goffic <clement.legoffic@foss.st.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Antonio Borneo 2025-06-16 09:59:13 +02:00 committed by Andrew Morton
parent e795000e75
commit 5eee4c2b2a
1 changed files with 3 additions and 2 deletions
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5
scripts/checkpatch.pl
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@ -3502,9 +3502,10 @@ sub process {
# Check for various typo / spelling mistakes
if (defined($misspellings) &&
($in_commit_log || $line =~ /^(?:\+|Subject:)/i)) {
while ($rawline =~ /(?:^|[^\w\-'`])($misspellings)(?:[^\w\-'`]|$)/gi) {
my $rawline_utf8 = decode("utf8", $rawline);
while ($rawline_utf8 =~ /(?:^|[^\w\-'`])($misspellings)(?:[^\w\-'`]|$)/gi) {
my $typo = $1;
my $blank = copy_spacing($rawline);
my $blank = copy_spacing($rawline_utf8);
my $ptr = substr($blank, 0, $-[1]) . "^" x length($typo);
my $hereptr = "$hereline$ptr\n";
my $typo_fix = $spelling_fix{lc($typo)};