Compiler Design Book Of Aa Puntambekar Pdf 71 2021 -

while token.type != EOF: print(token) token = lexer.get_next_token() To get more information you may have to download and read the book with detailed explnation and examples

if self.current_char.isdigit(): return Token(INTEGER, self.integer())

self.error()

if self.current_char.isspace(): self.skip_whitespace() continue

return Token(EOF, None)

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

# Lexer class class Lexer: def __init__(self, text): self.text = text self.pos = 0 self.current_char = self.text[self.pos] compiler design book of aa puntambekar pdf 71 2021

def error(self): raise Exception('Invalid character')