The "space before a non-naked semicolon" test has
unwanted output when used in "for ( ;; )" loops.
Make the test work only on end-of-line statement
termination semicolons.
Signed-off-by: Joe Perches
---
On Wed, 2013-12-04 at 11:21 +0300, Dan Carpenter wrote:
> You and I generally agree on style preferences...
True, and I think that's a good thing.
> I think the warning
> should be limited to grep " ;$".
Look at the output of:
$ git grep " ;" -- "*.[ch]" | grep -w for
...
The "| wc -l" output above in -next is
1407
Which of those should not be warned on?
$ git grep " ;" -- "*.[ch]" | grep -P "\bfor\s*\(\s+;" | wc -l
211
I think all of the uses like "for ( ; expression; expression)"
are unbalanced and should be avoided.
Oh. checkpatch doesn't complain about spacing around
semicolon with for loops here. This error is a separate
test that looks only for space before semicolon.
So, we agree after all.
This test should look only for space before end-of-statement
semicolons at EOL.
This has still has false positives with multi-line fors like:
for ( ; expression ;
expression);
scripts/checkpatch.pl | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 38be5d5..d26eac6 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3131,7 +3131,7 @@ sub process {
}
# check for whitespace before a non-naked semicolon
- if ($line =~ /^\+.*\S\s+;/) {
+ if ($line =~ /^\+.*\S\s+;\s*$/) {
if (WARN("SPACING",
"space prohibited before semicolon\n" .
$herecurr) &&
$fix) {
--
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