class Sintactico():
def __init__(self, size):
self.pila = Pila()
self.pila.push('$')
self.pila.push('0')
self.columna = 0
self.cantidad = size
self.accion = ""
def comparar(self, token):
if (valores[token]):
self.accion = matriz[int(self.pila.top())][int(valores[token])]
print('Pila: ', self.pila.get())
print('Token: ', token)
if (self.accion == -1):
print('Cadena valida')
elif (self.accion > 0):
self.pila.push(self.accion)
print('Accion: PUSH')
print('\n')
elif (self.accion < 0):
self.pila.pop(reglas[self.accion]['cantidad'])
self.pila.push(matriz[int(
self.pila.top())][reglas[self.accion]['columna']])
print('Accion: POP %d elementos' %
reglas[self.accion]['cantidad'])
print('Accion: PUSH de la regla')
print('\n')
self.comparar('$')
else:
print('Invalida')
exit()
class Sintactico():
def __init__(self,size):
self.pila = Pila()
self.pila.push('$')
self.pila.push('0')
self.columna = 0
self.cantidad = size
self.accion = ""
self.list_tmp = list()
self.arbol = []
def comparar(self,token,valor):
if(valores[token]):
self.accion = matriz[int(self.pila.top())][int(valores[token])]
print('Pila: ', self.pila.get())
print('Token: ', token)
if(self.accion == -1):
print('Cadena valida\n')
print('==== Arbol ====')
self.arbol = self.arbol[::-1]
for item in self.arbol:
item.list = item.list[::-1]
print(item.regla,'==> ',item.list)
elif(self.accion > 0):
self.pila.push(self.accion)
self.list_tmp.append(valor)
print('Accion: PUSH')
print('\n')
elif(self.accion < 0):
self.pila.pop(reglas[self.accion]['cantidad'])
self.pila.push(matriz[int(self.pila.top())][reglas[self.accion]['columna']])
print('-----GENERA REGLA-----')
print('Accion: POP %d elementos'%reglas[self.accion]['cantidad'])
print('Accion: PUSH de la regla')
print('Nombre: ', reglas[self.accion]['nombre'])
print('\n')
list_aux = []
if(reglas[self.accion]['cantidad'] > 0):
print('Lista:' ,self.list_tmp)
aux = reglas[self.accion]['cantidad']
for i in range(aux):
valor2 = self.list_tmp.pop(-1)
list_aux.append(valor2)
self.arbol.append(nodo(reglas[self.accion]['nombre'], reglas[self.accion]['regla'], list_aux))
self.list_tmp.append(reglas[self.accion]['regla'])
self.comparar(token,valor)
else:
print('Invalida')
exit()
