From b34c648bb33ca143b98851fd7fe7250f1875c463 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 11 Sep 2013 14:24:01 -0700 Subject: [PATCH] checkpatch: better --fix of SPACING errors. Previous attempt at fixing SPACING errors could make a hash of several defects. This patch should make --fix be a lot better at correcting these defects. Trim left and right sides of these defects appropriately instead of a somewhat random attempt at it. Trim left spaces from any following bit of the modified line when only a single space is required around an operator. Signed-off-by: Joe Perches Cc: Phil Carmody Cc: Andy Whitcroft Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/checkpatch.pl | 64 ++++++++++++++++++++++++++++--------------- 1 file changed, 42 insertions(+), 22 deletions(-) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index db7778a8f414..e53df2b086b2 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -1472,7 +1472,23 @@ sub check_absolute_file { sub trim { my ($string) = @_; - $string =~ s/(^\s+|\s+$)//g; + $string =~ s/^\s+|\s+$//g; + + return $string; +} + +sub ltrim { + my ($string) = @_; + + $string =~ s/^\s+//; + + return $string; +} + +sub rtrim { + my ($string) = @_; + + $string =~ s/\s+$//; return $string; } @@ -2821,6 +2837,7 @@ sub process { $off = 0; my $blank = copy_spacing($opline); + my $last_after = -1; for (my $n = 0; $n < $#elements; $n += 2) { @@ -2886,7 +2903,7 @@ sub process { $cc !~ /^\\/ && $cc !~ /^;/) { if (ERROR("SPACING", "space required after that '$op' $at\n" . $hereptr)) { - $good = trim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " "; + $good = $fix_elements[$n] . trim($fix_elements[$n + 1]) . " "; $line_fixed = 1; } } @@ -2901,11 +2918,11 @@ sub process { if ($ctx =~ /Wx.|.xW/) { if (ERROR("SPACING", "spaces prohibited around that '$op' $at\n" . $hereptr)) { - $good = trim($fix_elements[$n]) . trim($fix_elements[$n + 1]); - $line_fixed = 1; + $good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]); if (defined $fix_elements[$n + 2]) { $fix_elements[$n + 2] =~ s/^\s+//; } + $line_fixed = 1; } } @@ -2914,8 +2931,9 @@ sub process { if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) { if (ERROR("SPACING", "space required after that '$op' $at\n" . $hereptr)) { - $good = trim($fix_elements[$n]) . trim($fix_elements[$n + 1]) . " "; + $good = $fix_elements[$n] . trim($fix_elements[$n + 1]) . " "; $line_fixed = 1; + $last_after = $n; } } @@ -2932,8 +2950,10 @@ sub process { if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) { if (ERROR("SPACING", "space required before that '$op' $at\n" . $hereptr)) { - $good = trim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]); - $line_fixed = 1; + if ($n != $last_after + 2) { + $good = $fix_elements[$n] . " " . ltrim($fix_elements[$n + 1]); + $line_fixed = 1; + } } } if ($op eq '*' && $cc =~/\s*$Modifier\b/) { @@ -2942,12 +2962,11 @@ sub process { } elsif ($ctx =~ /.xW/) { if (ERROR("SPACING", "space prohibited after that '$op' $at\n" . $hereptr)) { - $fixed_line =~ s/\s+$//; - $good = trim($fix_elements[$n]) . trim($fix_elements[$n + 1]); - $line_fixed = 1; + $good = $fix_elements[$n] . rtrim($fix_elements[$n + 1]); if (defined $fix_elements[$n + 2]) { $fix_elements[$n + 2] =~ s/^\s+//; } + $line_fixed = 1; } } @@ -2956,8 +2975,7 @@ sub process { if ($ctx !~ /[WEOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) { if (ERROR("SPACING", "space required one side of that '$op' $at\n" . $hereptr)) { - $fixed_line =~ s/\s+$//; - $good = trim($fix_elements[$n]) . trim($fix_elements[$n + 1]) . " "; + $good = $fix_elements[$n] . trim($fix_elements[$n + 1]) . " "; $line_fixed = 1; } } @@ -2965,20 +2983,18 @@ sub process { ($ctx =~ /Wx./ && $cc =~ /^;/)) { if (ERROR("SPACING", "space prohibited before that '$op' $at\n" . $hereptr)) { - $fixed_line =~ s/\s+$//; - $good = trim($fix_elements[$n]) . trim($fix_elements[$n + 1]); + $good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]); $line_fixed = 1; } } if ($ctx =~ /ExW/) { if (ERROR("SPACING", "space prohibited after that '$op' $at\n" . $hereptr)) { - $fixed_line =~ s/\s+$//; - $good = trim($fix_elements[$n]) . trim($fix_elements[$n + 1]); - $line_fixed = 1; + $good = $fix_elements[$n] . trim($fix_elements[$n + 1]); if (defined $fix_elements[$n + 2]) { $fix_elements[$n + 2] =~ s/^\s+//; } + $line_fixed = 1; } } @@ -2992,8 +3008,10 @@ sub process { if ($ctx =~ /Wx[^WCE]|[^WCE]xW/) { if (ERROR("SPACING", "need consistent spacing around '$op' $at\n" . $hereptr)) { - $fixed_line =~ s/\s+$//; - $good = trim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " "; + $good = rtrim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " "; + if (defined $fix_elements[$n + 2]) { + $fix_elements[$n + 2] =~ s/^\s+//; + } $line_fixed = 1; } } @@ -3004,7 +3022,7 @@ sub process { if ($ctx =~ /Wx./) { if (ERROR("SPACING", "space prohibited before that '$op' $at\n" . $hereptr)) { - $good = trim($fix_elements[$n]) . trim($fix_elements[$n + 1]); + $good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]); $line_fixed = 1; } } @@ -3031,8 +3049,10 @@ sub process { if ($ok == 0) { if (ERROR("SPACING", "spaces required around that '$op' $at\n" . $hereptr)) { - $good = trim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " "; - $good = $fix_elements[$n] . " " . trim($fix_elements[$n + 1]) . " "; + $good = rtrim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " "; + if (defined $fix_elements[$n + 2]) { + $fix_elements[$n + 2] =~ s/^\s+//; + } $line_fixed = 1; } }