* builtins.substring: if "start" is beyond the end of the string,

return the empty string.
2011-01-14 12:47:10 +00:00
parent d6c8b995c5
commit 9db190eb31
3 changed files with 4 additions and 2 deletions
@@ -965,7 +965,7 @@ static void prim_substring(EvalState & state, Value * * args, Value & v)

    if (start < 0) throw EvalError("negative start position in `substring'");

-    mkString(v, string(s, start, len), context);
+    mkString(v, start >= s.size() ? "" : string(s, start, len), context);
 }