Class: Linked

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
linked.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Linked

Returns a new instance of Linked



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# File 'linked.rb', line 9

def initialize
    @head = @tail = nil
    @contador=0
end

Instance Attribute Details

#head ⇒ Object

Returns the value of attribute head



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# File 'linked.rb', line 7

def head
  @head
end

#prev ⇒ Object

Returns the value of attribute prev



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# File 'linked.rb', line 7

def prev
  @prev
end

#tail ⇒ Object

Returns the value of attribute tail



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# File 'linked.rb', line 7

def tail
  @tail
end

Instance Method Details

#add(value) ⇒ Object 



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# File 'linked.rb', line 14

def add(value)
    
    node = Node.new(value)

     @head = node if @head.nil?
    if(@tail!=nil)
        @tail.next = node 
        node.prev = @tail
        @contador=@contador+1
    end
    @tail = node
    #@contador=@contador+1
  
    
end

#each ⇒ Object 



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# File 'linked.rb', line 117

def each
    nodo = head
    while(nodo != nil)
        yield nodo.value[1][3]
        nodo = nodo.next
    end
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'linked.rb', line 94

def empty?
    
    if @head.nil?
        return true
    else 
        return false
    end
end

#ex_1er_elemento ⇒ Object 



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# File 'linked.rb', line 83

def ex_1er_elemento()
    if @head.nil?
       return false
    end
    
    @aux3=head
    
    @head = @head.next
    @aux3.next=nil
end

#extract_tail ⇒ Object 



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# File 'linked.rb', line 103

def extract_tail()
    
        aux=""
        if(@tail == nil)
            return false
        else
            aux = @tail.value
            @tail = @tail.prev
            return aux
        end
    
    
end

#to_s ⇒ Object 



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# File 'linked.rb', line 30

def to_s
    
    @aux=head
    #@tam=@aux.value.length
    aux2=""
    
    
    while @aux != nil do
        
        @nomb=@aux.value[0][0]
        @porc=@aux.value[0][1]
        
        @comida = @aux.value[1][0]
        @prop_aprox = @aux.value[1][1]
        @prop_exact = @aux.value[1][2]
        @kcal = @aux.value[1][3]
        @por = @aux.value[1][4]
       
        if (@aux.value[1][5]==nil)
            
            ob_diet=Dieta.new(@nomb,@porc,@comida,@prop_aprox,@prop_exact,@kcal,@por)
            #ob_raci=Raciones.new(@comida,@prop_aprox,@prop_exact,@kcal,@por)
                    
            aux2+="\n#{ob_diet.m_nombre()}\n"
            aux2+="#{ob_diet.comidayprop()}\n"
            aux2+="#{ob_diet.vct()}\n"
             
            
            @aux=@aux.next
        
        else
            
            if (@aux.value[1][6]==nil)
                @tipo = @aux.value[1][5]
                ob_alimentos=Alimentos.new(@nomb,@porc,@comida,@prop_aprox,@prop_exact,@kcal,@por,@tipo)
                aux2+="#{ob_alimentos.to_s()}\n"
                
                 @aux=@aux.next
            else 
                @desde = @aux.value[1][5]
                @hasta = @aux.value[1][6]
                ob_edad=Edad.new(@nomb,@porc,@comida,@prop_aprox,@prop_exact,@kcal,@por,@desde,@hasta)
                aux2+="#{ob_edad.to_s()}\n"
                
                 @aux=@aux.next
            end
        end    
    end
    
    "#{aux2}"
  
end