return Token(EOF, None)
if self.current_char.isspace(): self.skip_whitespace() continue compiler design book of aa puntambekar pdf 71 2021
# Lexer class class Lexer: def __init__(self, text): self.text = text self.pos = 0 self.current_char = self.text[self.pos] return Token(EOF, None) if self
# Token class class Token: def __init__(self, type, value): self.type = type self.value = value compiler design book of aa puntambekar pdf 71 2021
def advance(self): self.pos += 1 if self.pos > len(self.text) - 1: self.current_char = None else: self.current_char = self.text[self.pos]