Add exception handling for date parsing in lexer

2024-03-04 02:01:19 +02:00 · 2024-03-04 02:01:19 +02:00 · cb4c194420
parent 3ae6068215
commit cb4c194420
1 changed files with 5 additions and 1 deletions
--- a/02_syntax/lexer.py
+++ b/02_syntax/lexer.py
@ -76,7 +76,11 @@ def t_STRING(t):

 def t_DATE_LITERAL(t):
    r'\d{4}-\d{2}-\d{2}'
-    t.value = datetime.date.fromisoformat(t.value)
+    try:
+        t.value = datetime.date.fromisoformat(t.value)
+    except:
+        print(f'Invalid date \'{t.value}\' at line {t.lexer.lineno}')
+        raise SystemExit
    return t

 def t_INT_LITERAL(t):