> I wouldn't be surprised if it were possible to construct an especially pathological bit of perl that couldn't be lexically analyzed without running the progra

> I wouldn't be surprised if it were possible to construct an especially pathological bit of perl that couldn't be lexically analyzed without running the program. Yes and no. It's trivial to construct a pathological Perl 5 program which has indeterminate parsing without running... but in those cases where it's possible, you have only one of two or three possible interpretations for a specific sequence of tokens. As well, no one would write code that indeterminate by accident. It's always malicious.