From: Brian Candler <lists@...>
Date: 2012-08-10T22:21:57+09:00
Subject: Re: fasterCSV meaning of a line

Jan E. wrote in post #1071905:
> arr = [1, 2, 3]
> puts arr[0]  # <-- this calls the "[]" method of the Array class

Exactly.

In this case, because ruby is a dynamic language, what precisely it does 
depends on what objects @parsers and in_quotes represent at runtime. So 
you need to work back through the code to find where they are set.

At a guess, I would say @parsers is quite likely to be a Hash. If that's 
true, @parsers[:stray_quote] will get you the Hash value whose key is 
the symbol :stray_quote.

>> parsers = {:fluffy=>123, :wombat=>456}
=> {:fluffy=>123, :wombat=>456}
>> parsers[:fluffy]
=> 123
>> parsers[:wombat]
=> 456

But this isn't necessarily so; @parsers could be any object which 
implements a [] method.

>> saytwice = lambda { |x| x + x }
=> #<Proc:0x0000000101c2b6c0@(irb):9>
>> saytwice["hello"]
=> "hellohello"

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