+# Check relative indent for conditionals and blocks.
+ if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
+ my ($s, $c) = ($stat, $cond);
+
+ substr($s, 0, length($c), '');
+
+ # Make sure we remove the line prefixes as we have
+ # none on the first line, and are going to readd them
+ # where necessary.
+ $s =~ s/\n./\n/gs;
+
+ # Find out how long the conditional actually is.
+ my @newlines = ($c =~ /\n/gs);
+ my $cond_lines = 1 + $#newlines;
+
+ # We want to check the first line inside the block
+ # starting at the end of the conditional, so remove:
+ # 1) any blank line termination
+ # 2) any opening brace { on end of the line
+ # 3) any do (...) {
+ my $continuation = 0;
+ my $check = 0;
+ $s =~ s/^.*\bdo\b//;
+ $s =~ s/^\s*{//;
+ if ($s =~ s/^\s*\\//) {
+ $continuation = 1;
+ }
+ if ($s =~ s/^\s*?\n//) {
+ $check = 1;
+ $cond_lines++;
+ }
+
+ # Also ignore a loop construct at the end of a
+ # preprocessor statement.
+ if (($prevline =~ /^.\s*#\s*define\s/ ||
+ $prevline =~ /\\\s*$/) && $continuation == 0) {
+ $check = 0;
+ }
+
+ my $cond_ptr = -1;
+ $continuation = 0;
+ while ($cond_ptr != $cond_lines) {
+ $cond_ptr = $cond_lines;
+
+ # If we see an #else/#elif then the code
+ # is not linear.
+ if ($s =~ /^\s*\#\s*(?:else|elif)/) {
+ $check = 0;
+ }
+
+ # Ignore:
+ # 1) blank lines, they should be at 0,
+ # 2) preprocessor lines, and
+ # 3) labels.
+ if ($continuation ||
+ $s =~ /^\s*?\n/ ||
+ $s =~ /^\s*#\s*?/ ||
+ $s =~ /^\s*$Ident\s*:/) {
+ $continuation = ($s =~ /^.*?\\\n/) ? 1 : 0;
+ if ($s =~ s/^.*?\n//) {
+ $cond_lines++;
+ }
+ }
+ }
+
+ my (undef, $sindent) = line_stats("+" . $s);
+ my $stat_real = raw_line($linenr, $cond_lines);
+
+ # Check if either of these lines are modified, else
+ # this is not this patch's fault.
+ if (!defined($stat_real) ||
+ $stat !~ /^\+/ && $stat_real !~ /^\+/) {
+ $check = 0;
+ }
+ if (defined($stat_real) && $cond_lines > 1) {
+ $stat_real = "[...]\n$stat_real";
+ }
+
+ #print "line<$line> prevline<$prevline> indent<$indent> sindent<$sindent> check<$check> continuation<$continuation> s<$s> cond_lines<$cond_lines> stat_real<$stat_real> stat<$stat>\n";
+
+ if ($check && (($sindent % 8) != 0 ||
+ ($sindent <= $indent && $s ne ''))) {
+ WARN("suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n");
+ }
+ }
+