MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -YACC stands for Yet Another Compiler Compiler. YACC provides a tool to produce a parser for a given grammar. YACC is a program designed to compile a LALR (1) grammar. It is used to produce the source code of the syntactic analyzer of the language produced by LALR (1) grammar.

Detailed explanation-2: -The syntax analysis is the essential step for the compilation of programs written in programming languages. In order to produce the object programs executable on the computer, the source program has to be analyzed with respect to its correctness, the correctness of the lexicon, syntax and semantics.

Detailed explanation-3: -The parser (syntax analyzer) receives the source code in the form of tokens from the lexical analyzer and performs syntax analysis, which create a tree-like intermediate representation that depicts the grammatical structure of the token stream. Syntax analysis is also called parsing.

Detailed explanation-4: -Syntax Analysis is a second phase of the compiler design process in which the given input string is checked for the confirmation of rules and structure of the formal grammar. It analyses the syntactical structure and checks if the given input is in the correct syntax of the programming language or not.

Detailed explanation-5: -Yacc (yet another compiler compiler) is a grammar parser and parser generator. That is, it is a program that reads a grammar specification and generates code that is able to organize input tokens in a syntactic tree in accordance with the grammar.