--- a/lwlib/lw_expr.c	Wed Apr 14 21:02:53 2010 -0600
+++ b/lwlib/lw_expr.c	Thu Apr 15 21:56:06 2010 -0600
@@ -49,6 +49,13 @@
 	return -1;
 }
 
+int lw_expr_specint(lw_expr_t e)
+{
+	if (e -> type == lw_expr_type_special)
+		return e -> value;
+	return -1;
+}
+
 void lw_expr_set_term_parser(lw_expr_fn3_t *fn)
 {
 	parse_term = fn;
@@ -841,3 +848,17 @@
 {
 	return lw_expr_parse_expr(p, priv, 0);
 }
+
+int lw_expr_testterms(lw_expr_t e, lw_expr_testfn_t *fn, void *priv)
+{
+	struct lw_expr_opers *o;
+	int r;
+	
+	for (o = e -> operands; o; o = o -> next)
+	{
+		r = lw_expr_testterms(o -> p, fn, priv);
+		if (r)
+			return r;
+	}
+	return (fn)(e, priv);
+}