def parse_file(file_path):
inp = FileStream(file_path)
lexer = VhdlLexer(inp)
stream = CommonTokenStream(lexer)
parser = VhdlParser(stream)
listener = VhdlListenerForGraph()
parser._interp.predictionMode = PredictionMode.LL
tree = parser.design_file()
walker = ParseTreeWalker()
walker.walk(listener, tree)
return listener
def main(argv):
input = FileStream(argv[1])
lexer = VhdlLexer(input)
stream = CommonTokenStream(lexer)
parser = VhdlParser(stream)
listener = VhdlListenerForGraph()
parser_option = argv[2]
if (parser_option == "SLL"):
parser._interp.predictionMode = PredictionMode.SLL
try:
print("Parsing with SLL...")
tree = parser.design_file()
except:
print("SLL didn't work, parsing with LL...")
stream.reset()
parser.reset()
parser._interp.predictionMode = PredictionMode.LL
tree = parser.design_file()
finally:
print("Done parsing, walking parse tree...")
walker = ParseTreeWalker()
walker.walk(listener, tree)
elif (parser_option == "LL"):
print("Parsing with LL...")
parser._interp.predictionMode = PredictionMode.LL
tree = parser.design_file()
print("Done parsing, walking parse tree...")
walker = ParseTreeWalker()
walker.walk(listener, tree)
print(len(listener.components_list))
