On Sun, 2020-11-22 at 18:29 +0530, Aditya Srivastava wrote: > Currently, checkpatch warns if logical continuations are placed at the > start of a line and not at the end of previous line. > > E.g., running checkpatch on commit 3485507fc272 ("staging: > bcm2835-camera: Reduce length of enum names") reports: > > CHECK:LOGICAL_CONTINUATIONS: Logical continuations should be on the > previous line > + if (!ret > + && camera_port == > > Provide a simple fix by inserting logical operator at the last > non-comment, non-whitespace char of the previous line and removing from > current line, if both the lines are additions(ie start with '+') > > Signed-off-by: Aditya Srivastava <yashsri...@gmail.com> [] > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl [] > @@ -3553,8 +3553,16 @@ sub process { > > > # check for && or || at the start of a line > if ($rawline =~ /^\+\s*(&&|\|\|)/) { > - CHK("LOGICAL_CONTINUATIONS", > - "Logical continuations should be on the previous > line\n" . $hereprev); > + my $operator = $1; > + if (CHK("LOGICAL_CONTINUATIONS", > + "Logical continuations should be on the > previous line\n" . $hereprev) && > + $fix && $prevrawline =~ /^\+/) { > + # insert logical operator at last non-comment, > non-whitepsace char on previous line > + $prevline =~ /[\s$;]*$/; > + my $line_end = substr($prevrawline, $-[0]); > + $fixed[$fixlinenr - 1] =~ s/\Q$line_end\E/ > $operator$line_end/;
This doesn't work when the same leading whitespace and trailing whitespace characters exist. You need to use something like: $fixed[$fixlinenr - 1] =~ s/\Q$line_end\E$/ $operator$line_end/; (note the $ after \E to use EOL)