fix crash on loading text program with & followed by space (issue #90)

robhagemans · robhagemans · commit 151729185b26 · 2018-12-18T08:22:26.000Z
diff --git a/pcbasic/basic/values/numbers.py b/pcbasic/basic/values/numbers.py
@@ -269,7 +269,7 @@ def to_str(self, leading_space, type_sign):
     def from_oct(self, oct_repr):
         """Convert str in octal representation to integer."""
         # oct representations may be interrupted by blanks
-        val = int(oct_repr.strip(BLANKS), 8) if oct_repr else 0
+        val = int(oct_repr.strip(BLANKS), 8) if oct_repr.strip(BLANKS) else 0
         return self.from_int(val, unsigned=True)
 
     def from_hex(self, hex_repr):
