Operator precedence is not working as expected

[jochen777]

I think the operator precedence is not working properly:

Consider this model:
t = true; f = false;

And consider this template:
{% if not f and not t %} This should not be displayed {% endif %}

... But the result is, that "This should not be displayed" IS displayed.

If I use parentheses

{% if (not f) and (not t) %} This should not be displayed {% endif %}

it works as expected

[ebussieres]

Fixed via 9cd7583

[jochen777]

cool! Sourcecode change is much cleaner, than I expected! Thank you!