So those are our 2 base cases.

I'm going to update my list of visited symbols, and then I'm going to go through each rewrite rule.

Similar to how we often put a 123,456.

And to show that this string is in this grammar, we're going to walk through it.

But I do note that our dot is right in front of c.

Here I've written out a grammar.

Now, let's just take a look at each of the steps one by one.

We have plus, minus, times and divide. So, here

In the future, we'll give up on it.

Well, one way to view this is to think about the parse tree, which I've kind of drawn here upside down.

Error parsing TimeZoneRule, setting to empty rule.

You can call sign of 3, so we can't just reuse params.

For parsing rules, we're going to use a p_ to define the name of a parsing rule.

We've seen 2 tokens and one of our states would be exactly this one.

Alright, how about this? We've seen just INT.

All right.

(E gt E E, with a dot in front).

Well, we don't have states that look like circles, but we do have these rules.

So here I have my interpreter ready for us to get started with this question.

And then, Be obscure clearly! Be wild of tongue in a way we can understand.

Then we have our typical ignore and error rules.

And in this case we have 2, so the optional arguments goes to arguments.

All right, so here I actually have quite a bit of Python code, and we're going to walk through it together, and then you're going to help me finish it out, so here's our definition of our grammar.

We haven't read anything in yet, so we're just going to be at the beginning of the start substitution rule.

Regulations.

This first step E can be rewritten by (E) corresponds to rule two.

So exactly the same sorts of ideas. You write out a regular expression and then some code to do.

Can we apply this rule in this case?

Actually, they're both just concise notations for specifying possibly infinite sets of strings.

Any one of them is a valid way to generate an infinite grammar.

I'm running out of space, so I'm not going to write them again because now we can use rules to replace verb.

Rules?

We're going to update the list of visited symbols with the current visit symbol.

I claim that there are 1 or 2 of these rules that match more closely than others.

You should obey the traffic rules.

I've also added not just to make it work.

We can draw something that looks a bit like an inverted tree.

That's the fifth power.

You should practice playing the piano regularly.

Don't want to confuse you.

This way, from the top to the bottom, is parsing a string, applying the reductions in reverse order until you get back to the start symbol.

The y's go 10, 8, 6, 4, and 2.

You are to observe traffic rules.

Too close, it gets pushed away.

No, this is one of your rules.