correct by fixing bug in ambiguity_check
@@ -329,7 +329,7 @@ pub fn requires_space(atom: &str, op: &str) -> bool {
.next()
.map(|oc| {
if ac == '0' {
- oc == 'b' || oc == 'x' || oc == 'o' || oc == '\''
+ oc == 'b' || oc == 'x' || oc == 'o' || oc == '\'' || alpha_numeric_char!(oc)
} else if alpha_numeric_char!(ac) {
oc == '(' || alpha_numeric_char!(oc)
} else if graphic_token_char!(ac) {
