1 files changed, 14 insertions, 0 deletions
diff --git a/libgo/go/net/http/lex.go b/libgo/go/net/http/lex.go
index 50b14f8b325..52b6481c14e 100644
--- a/libgo/go/net/http/lex.go
+++ b/libgo/go/net/http/lex.go
@@ -167,3 +167,17 @@ func tokenEqual(t1, t2 string) bool {
 	}
 	return true
 }
+
+// isLWS reports whether b is linear white space, according
+// to http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2
+//      LWS            = [CRLF] 1*( SP | HT )
+func isLWS(b byte) bool { return b == ' ' || b == '\t' }
+
+// isCTL reports whether b is a control byte, according
+// to http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2
+//      CTL            = <any US-ASCII control character
+//                       (octets 0 - 31) and DEL (127)>
+func isCTL(b byte) bool {
+	const del = 0x7f // a CTL
+	return b < ' ' || b == del
+}