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searching for substrings

Searching is complex

You already know how to find a substring, so you could run through the
entire web page and check each two characters to see if they match >$,
like this:

We could search through the
whole string for “>$", looking
at 2 characters at a time.

We’ve found “>$"!
So these next 4
characters must be
the price, right?

You could do it this way... but should you?
There’s a lot to worry about. Which two characters are you currently
comparing? Where in the string are you right now? What if “>$” isn’t
found? Searching for substrings in strings is a little more complex than it
first appears...

But if you don’t want to write code to search the
string, what else could you do?

52 Chapter 2