parser reports syntax error accurately

still need improvement
2026-07-20 09:38:46 +08:00 · 2021-05-04 01:13:53 +08:00
parent 2405bada81
commit 6651fccbe8
7 changed files with 132 additions and 122 deletions
@@ -68,6 +68,7 @@ scalar::=
    |hash {call_scalar}
    |number
    |string
+    |nil
    |'(' calculation ')' {call_scalar}
 ;
 call_scalar::=