Compiler Design Book Of Aa Puntambekar Pdf 71 2021 Today

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

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

Here is sample code for lexical analyzer

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