X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=generate;h=c9ade62c3299518c72847b8f8528ffb4764df199;hb=32261735a134418b3bc26fc49d816e487b8338e5;hp=eb99456144302fe5e20ef5b09f22dade5702dbef;hpb=1717ef2f361a5da97bb6019b92da4a4ab7fb9487;p=secnet.git

diff --git a/generate b/generate
index eb99456..c9ade62 100755
--- a/generate
+++ b/generate
@@ -288,6 +288,10 @@ sub process_input_mk ($$$$) {
 	    } elsif ($2 eq '$') {
 		od $2;
 		if (s{^\$}{}) { od $&; }
+		elsif (m{^[a-zA-Z]\w}) {
+		    wrn
+		    'possibly confusing unbracketed single-char $-expansion';
+		}
 		elsif (m{^\(($esc)?([^()\$]+)\)} ||
 		       m{^\{($esc)?([^{}\$]+)\}}) {
 		    $note_varref->($2,!!$1);