def syntax_error(self, expected):
print (expected + " was expected, but " + T.get_name(self.lookahead[0]) + " was found in line " + str(self.lookahead[3]))
sys.exit("The program is not valid.")
def match(self, token):
if self.peek() == token:
self.lookahead = self.lexical_analyser.yylex()
#print "Matched " + T.get_name(token)
else:
self.syntax_error(T.get_name(token))
def __init__ (self, lexical_analyser):
T.load()
self.lexical_analyser = lexical_analyser
self.lookahead = self.lexical_analyser.yylex()