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#!/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2022 Iván Alejandro Ávalos Díaz <avalos@disroot.org>
# Edgar Alexis López Martínez <edgarmlmp@gmail.com>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import sys, pickle
import graphviz as gv
from pprint import pprint
from tabla import TablaLex
from errors import Error
from parse.base import BaseParser
from parse.unit import ParseUnit
class Parser:
def __init__(self, input_file: str):
self.input_file = input_file
self.tabla = TablaLex()
self.tabla.importar(input_file + '.tab')
self.iterador = self.tabla.iterar()
def inicio(self):
parser = BaseParser(self.iterador)
unit = ParseUnit(parser).unit()
if type(unit) is Error:
print (unit.message, file=sys.stderr)
return 1
# Renderizar AST
dot = gv.Digraph()
dot.attr('node', fontname='monospace')
unit.graph(dot)
dot.render(self.input_file + '.gv')
# Serializar AST
with open(self.input_file + '.ast', 'wb') as f:
pickle.dump(unit, f)
return 0
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