def esCADENA(linea: str, pos: int) -> str:
q0 = 0
F = [2]
#Q=0..3
# #sigma=(C,O);
delta = [None] * 4
for i in range(4):
delta[i] = [None] * 2
delta[0][0] = 1
delta[0][1] = 3
delta[1][0] = 2
delta[1][1] = 1
delta[2][0] = 3
delta[2][1] = 3
delta[3][0] = 3
delta[3][1] = 3
auxControl = pos
estado = q0
lexema = ''
T = arc.leerCaracter(linea, auxControl)
while estado != 3 and auxControl < len(linea) and T != "\n" and (estado
not in F):
estado = delta[estado][simbCAD(T)]
if estado != 3:
lexema = lexema + T
auxControl = auxControl + 1
T = arc.leerCaracter(linea, auxControl)
if estado in F:
pos = auxControl
return lexema
else:
return ""
def esID(linea: str, posicion: int) -> str:
q0 = 0
F = {0, 1}
# Q = (0,1,2)
# sigma=[(letra, digito, guionBajo, otro)] #letra = 0ra columna, digito = 1da columna, guionBajo = 2ra columna, otro= 3ta columna)
delta = [None] * 3
for i in range(3):
delta[i] = [None] * 4
delta[0][0] = 1
delta[0][1] = 2
delta[0][2] = 2
delta[0][3] = 2
delta[1][0] = 1
delta[1][1] = 1
delta[1][2] = 1
delta[1][3] = 2
delta[2][0] = 2
delta[2][1] = 2
delta[2][2] = 2
delta[2][3] = 2
lexema = ""
auxControl = posicion
T = arc.leerCaracter(linea, auxControl)
estado = q0
while (estado != 2) and auxControl < len(linea) and (T != " ") and (
T != "\n") and not simbolo(linea, auxControl):
estado = delta[estado][simboloID(T)]
lexema = lexema + T
auxControl = auxControl + 1
T = arc.leerCaracter(linea, auxControl)
if estado in F:
return lexema
else:
return ""
def esLEER(linea: str, posicion: str) -> str:
q0 = 0
F = {4}
#Q=0..5
#sigma=(L, E, R, O)
delta = [None] * 6
for i in range(6):
delta[i] = [None] * 4
delta[0][0] = 1
delta[0][1] = 5
delta[0][2] = 5
delta[0][3] = 5
delta[1][0] = 5
delta[1][1] = 2
delta[1][2] = 5
delta[1][3] = 5
delta[2][0] = 5
delta[2][1] = 3
delta[2][2] = 5
delta[2][3] = 5
delta[3][0] = 5
delta[3][1] = 5
delta[3][2] = 4
delta[3][3] = 5
delta[4][0] = 5
delta[4][1] = 5
delta[4][2] = 5
delta[4][3] = 5
auxControl = posicion
estado = q0
lexema = ""
T = arc.leerCaracter(linea, auxControl)
while estado != 5 and auxControl < len(
linea) and T != " " and T != "\n" and not simbolo(
linea, auxControl):
estado = delta[estado][simbLEER(T)]
if estado != 5:
lexema = lexema + T
auxControl = auxControl + 1
T = arc.leerCaracter(linea, auxControl)
if estado in F:
return lexema
else:
return ""
def esESCRIBIR(linea: str, pos: int) -> int:
q0 = 0
F = {8}
#Q=0..9;
# #sigma=(E, S, C, R, I, B ,O) 0 para E, 1 para S, 2 para C...
#delta = np.empty((10, 7))
delta = [None] * 10
for i in range(10):
delta[i] = [None] * 7
delta[0][0] = 1
delta[0][1] = 9
delta[0][2] = 9
delta[0][3] = 9
delta[0][4] = 9
delta[0][5] = 9
delta[0][6] = 9
delta[1][0] = 9
delta[1][1] = 2
delta[1][2] = 9
delta[1][3] = 9
delta[1][4] = 9
delta[1][5] = 9
delta[1][6] = 9
delta[2][0] = 9
delta[2][1] = 9
delta[2][2] = 3
delta[2][3] = 9
delta[2][4] = 9
delta[2][5] = 9
delta[2][6] = 9
delta[3][0] = 9
delta[3][1] = 9
delta[3][2] = 9
delta[3][3] = 4
delta[3][4] = 9
delta[3][5] = 9
delta[3][6] = 9
delta[4][0] = 9
delta[4][1] = 9
delta[4][2] = 9
delta[4][3] = 9
delta[4][4] = 5
delta[4][5] = 9
delta[4][6] = 9
delta[5][0] = 9
delta[5][1] = 9
delta[5][2] = 9
delta[5][3] = 9
delta[5][4] = 9
delta[5][5] = 6
delta[5][6] = 9
delta[6][0] = 9
delta[6][1] = 9
delta[6][2] = 9
delta[6][3] = 9
delta[6][4] = 7
delta[6][5] = 9
delta[6][6] = 9
delta[7][0] = 9
delta[7][1] = 9
delta[7][2] = 9
delta[7][3] = 8
delta[7][4] = 9
delta[7][5] = 9
delta[7][6] = 9
delta[8][0] = 9
delta[8][1] = 9
delta[8][2] = 9
delta[8][3] = 9
delta[8][4] = 9
delta[8][5] = 9
delta[8][6] = 9
delta[9][0] = 9
delta[9][1] = 9
delta[9][2] = 9
delta[9][3] = 9
delta[9][4] = 9
delta[9][5] = 9
delta[9][6] = 9
auxControl = pos
estado = q0
lexema = ""
T = arc.leerCaracter(linea, pos)
while estado != 9 and auxControl < len(
linea) and T != " " and T != "\n" and not simbolo(
linea, auxControl):
estado = delta[estado][simbESCRI(T)]
if estado != 9:
lexema = lexema + T
auxControl = auxControl + 1
T = arc.leerCaracter(linea, auxControl)
if estado in F:
posicion = auxControl
return lexema
else:
return ""
def esConstReal(linea: str, pos: int) -> str:
q0 = 0
F = {4, 2, 7}
#Q=range(1,9)
#sigma=(D, menos, punto, E, O)
delta = [None] * 9
for i in range(9):
delta[i] = [None] * 5
estado = q0
auxControl = pos
delta[0][0] = 2
delta[0][1] = 1
delta[0][2] = 8 # 8=muerto
delta[0][3] = 8
delta[0][4] = 8
delta[1][0] = 2
delta[1][1] = 8
delta[1][2] = 8
delta[1][3] = 8
delta[1][4] = 8
delta[2][0] = 2
delta[2][1] = 8
delta[2][2] = 3
delta[2][3] = 5
delta[2][4] = 8
delta[3][0] = 4
delta[3][1] = 8
delta[3][2] = 8
delta[3][3] = 8
delta[3][4] = 8
delta[4][0] = 4
delta[4][1] = 8
delta[4][2] = 8
delta[4][3] = 5
delta[4][4] = 8
delta[5][0] = 7
delta[5][1] = 6
delta[5][2] = 8
delta[5][3] = 8
delta[5][4] = 8
delta[6][0] = 7
delta[6][1] = 8
delta[6][2] = 8
delta[6][3] = 8
delta[6][4] = 8
delta[7][0] = 7
delta[7][1] = 8
delta[7][2] = 8
delta[7][3] = 8
delta[7][4] = 8
delta[8][0] = 8
delta[8][1] = 8
delta[8][2] = 8
delta[8][3] = 8
delta[8][4] = 8
lexema = ""
T = arc.leerCaracter(linea, auxControl)
while estado != 8 and auxControl < len(
linea) and T != " " and T != "\n" and (not simbolo1(
linea, auxControl)):
estado = delta[estado][simbCONS(T)]
if estado != 8:
lexema = lexema + T
auxControl = auxControl + 1
T = arc.leerCaracter(linea, auxControl)
if estado in F:
return lexema
else:
return ""
def simbolo1(linea: str, posicion: int) -> bool:
simb = False
aux = arc.leerCaracter(linea, posicion)
if aux in {'=', '+', '*', '/', ';', ',', '(', ')'}:
simb = True
return simb