checksrc: detect and warn for lack of spaces next to plus signs

diff --git a/lib/checksrc.pl b/lib/checksrc.pl
index f4ffa1ef38cbfacad061af947ca3a66d40f24931..3d3e516416731b0b21121fea50736b6e56b7499e 100755 (executable)
--- a/lib/checksrc.pl
+++ b/lib/checksrc.pl
@@ -542,6 +542,19 @@ sub scanfile {
                       "no space before equals sign");
         }
 
+        # check for plus signs without spaces next to it
+        if($nostr =~ /(.*)[^+]\+[a-z0-9]/i) {
+            checkwarn("PLUSNOSPACE",
+                      $line, length($1)+1, $file, $ol,
+                      "no space after plus sign");
+        }
+        # check for plus sign without spaces before it
+        elsif($nostr =~ /(.*)[a-z0-9]\+[^+]/i) {
+            checkwarn("NOSPACEPLUS",
+                      $line, length($1)+1, $file, $ol,
+                      "no space before plus sign");
+        }
+
         $line++;
         $prevl = $ol;
     }