Class: Lista
- Inherits:
-
Object
- Object
- Lista
- Defined in:
- lib/dieta/List.rb
Defined Under Namespace
Classes: Node
Instance Attribute Summary collapse
-
#last ⇒ Object
Returns the value of attribute last.
-
#top ⇒ Object
Returns the value of attribute top.
Instance Method Summary collapse
- #empty ⇒ Object
- #extraer ⇒ Object
- #getPrevTop ⇒ Object
-
#initialize(top) ⇒ Lista
constructor
A new instance of Lista.
- #insertar(elemento) ⇒ Object
- #insertarMultiple(elementos) ⇒ Object
- #mostrarUltimo ⇒ Object
Constructor Details
Instance Attribute Details
#last ⇒ Object
Returns the value of attribute last.
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# File 'lib/dieta/List.rb', line 3 def last @last end |
#top ⇒ Object
Returns the value of attribute top.
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# File 'lib/dieta/List.rb', line 3 def top @top end |
Instance Method Details
#empty ⇒ Object
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# File 'lib/dieta/List.rb', line 71 def empty if @top == nil true else false end end |
#extraer ⇒ Object
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# File 'lib/dieta/List.rb', line 52 def extraer if empty puts "Lista vacia. Empty!" else extraer = @top[:value] aux_to = @top[:prev] if @top == @last @last = nil; end aux_to[:next] = nil @top = aux_to extraer end end |
#getPrevTop ⇒ Object
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# File 'lib/dieta/List.rb', line 46 def getPrevTop aux = top[:prev] val = aux[:value] val end |
#insertar(elemento) ⇒ Object
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# File 'lib/dieta/List.rb', line 20 def insertar(elemento) if empty @top = Node.new(elemento,nil, nil) @last = Node.new(elemento,nil, nil) else @top[:next] = elemento; = Node.new(elemento, @top, nil) @top = end end |
#insertarMultiple(elementos) ⇒ Object
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# File 'lib/dieta/List.rb', line 15 def insertarMultiple(elementos) elementos.each do |elemento| insertar(elemento) end end |
#mostrarUltimo ⇒ Object
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# File 'lib/dieta/List.rb', line 31 def mostrarUltimo if empty puts "Lista vacia. Empty!" else aux = @top; while aux[:prev] != nil aux = aux[:prev] end aux[:value] end end |