def parse_tree_from_file(file_name, encode, error_listener):
input_stream = FileStream(file_name, encode)
lexer = HTTPIDLLexer(input_stream)
stream = CommonTokenStream(lexer)
parser = HTTPIDL(stream)
parser.addErrorListener(error_listener)
tree = parser.entry()
return tree
def main(filename):
lexer = FimRusLexer(FileStream(filename, encoding='utf8'))
stream = CommonTokenStream(lexer)
parser = FimRusParser(stream)
tree = parser.program()
listener = Listener()
walker = ParseTreeWalker()
walker.walk(listener, tree)
def load_ast_by_file_name(fname):
f = FileStream(fname, encoding="utf-8")
lexer = proto_grammarLexer(f)
stream = CommonTokenStream(lexer)
parser = proto_grammarParser(stream)
parser.addErrorListener(MyErrorListener())
tree = parser.proto_file()
return tree
def main():
fname = "sv2017.g4_proto"
f = FileStream(fname, encoding="utf-8")
lexer = proto_grammarLexer(f)
stream = CommonTokenStream(lexer)
parser = proto_grammarParser(stream)
parser.addErrorListener(MyErrorListener())
tree = parser.proto_file()
return tree
def compile(inputFile):
input_stream = FileStream(inputFile)
lexer = MusicGeneratorLexer(input_stream)
stream = CommonTokenStream(lexer)
parser = MusicGeneratorParser(stream)
tree = parser.statements()
printer = Listener()
walker = ParseTreeWalker()
walker.walk(printer, tree)
def check_syntax_errors(self) -> bool:
syntax_errors = 0
for file_path in list(self.resolved_paths.values()):
print("File: {}".format(file_path))
finput = FileStream(str(file_path))
lexer = lfrXLexer(finput)
stream = CommonTokenStream(lexer)
parser = lfrXParser(stream)
parser.skeleton()
syntax_errors += parser.getNumberOfSyntaxErrors()
return syntax_errors > 0
def testStream(self):
stream = FileStream(__file__)
self.assertTrue(stream.size > 0)