class Lista

Constants

VERSION

Attributes

head[R]
tail[R]

Public Instance Methods

each() { |value| ... } click to toggle source
# File lib/NutrientesEdu/Lista.rb, line 97
def each
  x = @head
  while(x != nil)
    yield x.value
    x = x.next
  end
end
pop_head() click to toggle source
# File lib/NutrientesEdu/Lista.rb, line 37
def pop_head()
  if(@head == nil)
    return nil
  else
    val= @head
    node = @head.next
    @head = node
    if @head != nil
      @head.prev = nil
    end
    return val
  end
end
pop_tail() click to toggle source
# File lib/NutrientesEdu/Lista.rb, line 51
def pop_tail()
  if(@tail == nil)
    return nil
  else
    val = @tail
    node = @tail.prev
    @tail = node
    if @tail != nil
      @tail.next = nil
    end
    return val
  end
end
push_head(value) click to toggle source
# File lib/NutrientesEdu/Lista.rb, line 11
def push_head(value)
  if(@head == nil)
    node=Node.new(value,nil,nil)
    @head = node
    @tail = node
    
  else
    node=Node.new(value,@head,nil)
    @head.prev = node
    @head = node
    
  end
end
push_tail(value) click to toggle source
# File lib/NutrientesEdu/Lista.rb, line 25
def push_tail(value)
  if(@tail == nil)
    node=Node.new(value,nil,nil)
    @head = node
    @tail = node
  else
    node=Node.new(value,nil,@tail)
    @tail.next = node
    @tail = node
  end
end
sort_salt() click to toggle source
# File lib/NutrientesEdu/Lista.rb, line 65
def sort_salt
  v = []
  j = 0
  each do
    |i| v[j] = i
    j += 1
  end
  terminado = false
  while !terminado
    terminado = true
    for k in 0..(v.length)-2
      if v[k].sal > v[k+1].sal
        aux = v[k+1]
        v[k+1] = v[k]
        v[k] = aux
        terminado = false
      end
    end
  end
  listadef = Lista.new()
  for k in 0..(v.length)-1
    listadef.push_tail(v[k])
  end
  return listadef
end
to_s() click to toggle source
# File lib/NutrientesEdu/Lista.rb, line 91
def to_s
    s = ""
    each {|i| s += "#{i.to_s}\n"}
    s
end