[Linux-kernel-mentees] [PATCH RFC] checkpatch: fix TYPO_SPELLING check for words with apostrophe

From: Dwaipayan Ray <dwaipayanray1@gmail.com>
To: lukas.bulwahn@gmail.com
Cc: dwaipayanray1@gmail.com,
	linux-kernel-mentees@lists.linuxfoundation.org,
	yepeilin.cs@gmail.com
Subject: [Linux-kernel-mentees] [PATCH RFC] checkpatch: fix TYPO_SPELLING check for words with apostrophe
Date: Thu, 26 Nov 2020 15:17:27 +0530	[thread overview]
Message-ID: <20201126094727.43265-1-dwaipayanray1@gmail.com> (raw)

checkpatch reports a false warning for some words containing an
apostrophe.

A false positive is "doesn't". Occurrence of the word causes
checkpatch to emit the following warning:

"WARNING: 'doesn'' may be misspelled - perhaps 'doesn't'?"

Check if any word character is present after the word boundary
in such cases. If present, it means a subpart of the word has
been matched and a warning should not be emitted.

Reported-by: Peilin Ye <yepeilin.cs@gmail.com>
Signed-off-by: Dwaipayan Ray <dwaipayanray1@gmail.com>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d1ecb852f384..47b964984ce0 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3106,7 +3106,7 @@ sub process {
 # Check for various typo / spelling mistakes
 		if (defined($misspellings) &&
 		    ($in_commit_log || $line =~ /^(?:\+|Subject:)/i)) {
-			while ($rawline =~ /(?:^|[^a-z@])($misspellings)(?:\b|$|[^a-z@])/gi) {
+			while ($rawline =~ /(?:^|[^a-z@])($misspellings)(?:\b(?![a-z@]+)|$|[^a-z@])/gi) {
 				my $typo = $1;
 				my $typo_fix = $spelling_fix{lc($typo)};
 				$typo_fix = ucfirst($typo_fix) if ($typo =~ /^[A-Z]/);
-- 
2.27.0

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