Question

what is lexical analysis?how it is diffrent from parsing ?explain.

Answer 1

Answer:

In computer science, lexical analysis, lexing or tokenization is the process of converting a sequence of characters into a sequence of tokens. A program that performs lexical analysis may be termed a lexer, tokenizer, or scanner, though scanner is also a term for the first stage of a lexer.

The main difference between lexical analysis and syntax analysis is that lexical analysis reads the source code one character at a time and converts it into meaningful lexemes (tokens) whereas syntax analysis takes those tokens and produce a parse tree as an output.

Explanation:

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