Class: Array

Inherits:
Object show all
Defined in:
lib/user_input.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.from_user_input(value) ⇒ Object 



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# File 'lib/user_input.rb', line 135

def Array.from_user_input(value)
  return [*value]
end

Instance Method Details

#from_user_input(value) ⇒ Object

Checks each element of the value array to ensure that they match against the first element of self



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# File 'lib/user_input.rb', line 141

def from_user_input(value)
  value = [*value]
  # eliminate the obvious
  if (self.length != 1)
    raise ArgumentError, "Must supply only one element to an array you're calling from_user_input on."
  end
  innertype = self[0]
  # now check whether the inner elements of the array match
  output = value.collect {|innervalue|
    # if innertype is not an array, but value is, we need to flatten it
    if (!innertype.kind_of?(Array) && innervalue.kind_of?(Array))
      innervalue = innervalue[0]
    end
    innertype.from_user_input(innervalue); # returns
  }.compact()

  if (output.length > 0)
    return output
  else
    return nil
  end
end