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In this video I would like 
to show you

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some simple elements of Nautilus.
I will show you

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more complex elements
in following videos

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related to the class browser.

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Nautilus is what will enable you
to browse in the code.

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I open it. What do we have?

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You have all Pharo packages.

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Let’s consider for example
AST-Core which is a package

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used by the compiler to parse code
and represent code.

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I have the AST-Core package.
I will have the classes

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contained in the AST-Core package
and we can see for 

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instance that there is inheritance
here, RBAssignmentToken

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inherits from RBToken.

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Now, for instance, if I click on
NumberParser,

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here you have
the NumberParser class.

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Here, I can see its comment.

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And there I see the protocols.

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The protocols are conceptual
groups of methods.

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If I click on “all”, I can see
all the methods

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of this class, otherwise
I can select 

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some protocols giving me 
a more precise piece of 

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information as, for instance,
initalize-release.

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It means that it is the method 
that will initialise the Parser.

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Here you have all the methods
linked to the way you 

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parse a number.

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I can see that this one is
public whereas

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these ones are private,
indicating I won’t

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have to call them from
the outside in a general way.

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Now if I am here, I will see the 
method’s code.