linux-kernel - [PATCH] checkpatch: Add check for line continuations in quoted strings

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Date:	Tue, 12 Apr 2011 17:36:48 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Andy Whitcroft <apw@...onical.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] checkpatch: Add check for line continuations in quoted
 strings

Add a warning for unterminated quoted strings with line continuations
as these frequently add unwanted whitespace.

Signed-off-by: Joe Perches <joe@...ches.com>

---

 scripts/checkpatch.pl |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d867081..f3f907b 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2748,6 +2748,11 @@ sub process {
 			WARN("sizeof(& should be avoided\n" . $herecurr);
 		}
 
+# check for line continuations in quoted strings with odd counts of "
+		if ($rawline =~ /\\$/ && $rawline =~ tr/"/"/ % 2) {
+			WARN("Avoid line continuations in quoted strings\n" . $herecurr);
+		}
+
 # check for new externs in .c files.
 		if ($realfile =~ /\.c$/ && defined $stat &&
 		    $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)


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