Compiler Design Book Of Aa Puntambekar Pdf 71 2021 Now

# Token types INTEGER, PLUS, MINUS, EOF = 'INTEGER', 'PLUS', 'MINUS', 'EOF'

def skip_whitespace(self): while self.current_char is not None and self.current_char.isspace(): self.advance() compiler design book of aa puntambekar pdf 71 2021

if self.current_char.isspace(): self.skip_whitespace() continue # Token types INTEGER, PLUS, MINUS, EOF =

if self.current_char == '-': self.advance() return Token(MINUS, '-') # Token types INTEGER

# Example usage lexer = Lexer('2 + 3') token = lexer.get_next_token()

if self.current_char == '+': self.advance() return Token(PLUS, '+')

def __repr__(self): return f'Token({self.type}, {self.value})'