From: Dave Lenhardt <davidinanhui@...>
Date: 2008-09-20T22:02:47+09:00
Subject: Re: Confused regarding text example

Alright, I think I got it.

So basically, WordIndex's obj could be a file, an array of strings, etc.

Phrases is basically a series of phrases (my mind just went blank on the 
correct terminology).

Scan breaks down the series into an array containing the phrases.

The do |word| end look is activated with each item in the array.  The 
string is modified and is turned into all lower case,.  Next, a check is 
made tosee if index[word] is empty.  If so, then it's turned into an 
empty Hash.

Finally, the object is pushed into the Hash that had the wanted string. 
Of course, if, say a file, had the same string three times...it would be 
listed three times.

And the thing being "returned" is the @index[word] so to speak, correct? 
That is, the way you can access the Hash.

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