else if (lex_is_string (lexer) && format != NULL)
{
union value v;
- assert (! (fmt_get_category (*format) & ( FMT_CAT_STRING )));
- data_in (ds_ss (lex_tokstr (lexer)), LEGACY_NATIVE, *format, 0, 0,
- &v, 0, NULL);
+
+ assert (fmt_get_category (*format) != FMT_CAT_STRING);
+
+ if (!data_in_msg (ds_ss (lex_tokstr (lexer)), LEGACY_NATIVE,
+ *format, &v, 0, NULL))
+ return false;
+
lex_get (lexer);
*x = v.f;
if (*x == SYSMIS)