Question

How the sentinals can improve its performance in input budder?

Answer 1

Input Buffering – Compiler Design. To ensure that a right lexeme is found, one or more characters have to be looked up beyond the next lexeme. Hence a two-buffer scheme is introduced to handle large lookaheads safely. In this, the generator provides routines for reading and buffering the input.

Answer 2

Explanation:

➡️ Hence a two-buffer scheme is introduced to handle large lookaheads safely. Techniques for speeding up the process of lexical analyzer such as the use of sentinels to mark the buffer end have been adopted. In this, the generator provides routines for reading and buffering the input.