Questions tagged [token]

In computer programming, a token is a sequence of characters that serves as a unit of meaning. Tokens can be categorized into different types such as identifiers, numbers, or commas based on certain rules defined by the language. The process of extracting tokens from a continuous stream of input characters is known as tokenization. A lexer, also called a tokenizer, identifies and categorizes these tokens according to their respective symbol types. Every token holds significance in facilitating the processing of an input text stream or text file.