def parse_declare_stmt(cls):
try:
node = Node(Node.DECLARE_STMT)
var_node = Node(Node.VAR)
if cls.get_next_token().get_type() in [Token.INT, Token.DOUBLE]:
current_token = cls.iterator.next()
data_type = Token.INT if current_token.get_type() == Token.INT else Token.DOUBLE
var_node.set_data_type(data_type)
else:
next_token = cls.get_next_token()
raise ErrorParse(next_token.get_line_num(), next_token.get_type())
if cls.get_next_token().get_type() == Token.ID:
current_token = cls.iterator.next()
var_node.set_value(current_token.get_value())
else:
next_token = cls.get_next_token()
raise ErrorParse(next_token.get_line_num(), next_token.get_type())
if cls.get_next_token().get_type() == Token.ASSIGN:
cls.read_token(Token.ASSIGN)
node.set_middle(cls.parse_exp())
elif cls.get_next_token().get_type() == Token.LBRACKET:
cls.read_token(Token.LBRACKET)
var_node.set_left(cls.parse_exp())
cls.read_token(Token.RBRACKET)
cls.read_token(Token.SEMI)
node.set_left(var_node)
return node
except ErrorParse(cls.get_next_token().get_line_num(), cls.get_next_token().get_type()) as e:
print e.content
def parse_declare_stmt(cls):
try:
node = Node(Node.DECLARE_STMT)
var_node = Node(Node.VAR)
if cls.get_next_token().get_type() in [Token.INT, Token.DOUBLE]:
current_token = cls.iterator.next()
data_type = Token.INT if current_token.get_type() == Token.INT else Token.DOUBLE
var_node.set_data_type(data_type)
else:
next_token = cls.get_next_token()
raise ErrorParse(next_token.get_line_num(), next_token.get_type())
if cls.get_next_token().get_type() == Token.ID:
current_token = cls.iterator.next()
var_node.set_value(current_token.get_value())
else:
next_token = cls.get_next_token()
raise ErrorParse(next_token.get_line_num(), next_token.get_type())
if cls.get_next_token().get_type() == Token.ASSIGN:
cls.read_token(Token.ASSIGN)
node.set_middle(cls.parse_exp())
elif cls.get_next_token().get_type() == Token.LBRACKET:
cls.read_token(Token.LBRACKET)
var_node.set_left(cls.parse_exp())
cls.read_token(Token.RBRACKET)
cls.read_token(Token.SEMI)
node.set_left(var_node)
return node
except ErrorParse(cls.get_next_token().get_line_num(), cls.get_next_token().get_type()) as e:
print e.content
def parse_literal(cls):
try:
if cls.iterator.has_next():
cls.currentToken = cls.iterator.next()
current_token_type = cls.currentToken.get_type()
node = Node(Node.LITERAL)
node.set_data_type(current_token_type)
node.set_value(cls.currentToken.get_value())
if current_token_type in [Token.LITERAL_INT, Token.LITERAL_DOU]:
return node
raise ErrorParse(cls.get_next_token().get_line_num(), "literal")
except ErrorParse as e:
print e.content
def parse_literal(cls):
try:
if cls.iterator.has_next():
cls.currentToken = cls.iterator.next()
current_token_type = cls.currentToken.get_type()
node = Node(Node.LITERAL)
node.set_data_type(current_token_type)
node.set_value(cls.currentToken.get_value())
if current_token_type in [Token.LITERAL_INT, Token.LITERAL_DOU]:
return node
raise ErrorParse(cls.get_next_token().get_line_num(), "literal")
except ErrorParse as e:
print e.content
def identifier(cls):
try:
node = Node(Node.VAR)
next_token_type = cls.get_next_token().get_type()
if next_token_type == Token.ID:
node.set_value(cls.iterator.next().get_value())
else:
raise ErrorParse(cls.get_next_token().get_line_num(), "identifier")
if cls.get_next_token().get_type() == Token.LBRACKET:
cls.read_token(Token.LBRACKET)
node.set_left(cls.parse_exp())
cls.read_token(Token.RBRACKET)
return node
except ErrorParse as e:
print e.content
def identifier(cls):
try:
node = Node(Node.VAR)
next_token_type = cls.get_next_token().get_type()
if next_token_type == Token.ID:
node.set_value(cls.iterator.next().get_value())
else:
raise ErrorParse(cls.get_next_token().get_line_num(), "identifier")
if cls.get_next_token().get_type() == Token.LBRACKET:
cls.read_token(Token.LBRACKET)
node.set_left(cls.parse_exp())
cls.read_token(Token.RBRACKET)
return node
except ErrorParse as e:
print e.content
