Question

In a compiler, the module which checks every character of the source text is called

• A. the code generator
• B. the code optimizer
• C. the lexical analyzer
• D. the syntax analyzer

Answer 1

The correct option is D the syntax analyzer

In a compiler, the module which checks every character of the source text is called the syntax analyzer.

A compiler is a special program that processes statements written in a particular programming language and turns them into machine language or "code" that a computer's processor uses.

A syntax analyzer or parser takes the input from a lexical analyzer in the form of token streams. The parser analyzes the source code (token stream) against the production rules to detect any errors in the code. The output of this phase is a parse tree.