What is output of lexical analyzer
Option (D) is correct because (I) a lexical analyzer produces tokens, (II) printf (i=%d, &i=%x, i, &i); produces a total of 10 tokens, and (III) a symbol table can be implemented using an array, hash table, tree, or linked lists.
What does lexical analyzer do Mcq
A lexical analyzer converts character sequences into a set of tokens, as explained.
What is the output of syntax analyzer
The parser successfully completes two tasks by parsing the code, looking for errors, and producing a parse tree as the phases output. Syntax Analyzers
What is the input of lexical analyzer
Explanation: Source code serves as the lexical analyzers input.
What is the function of lexical analyzer
It reads the input characters from the source program, groups them into lexemes, and generates a sequence of tokens for each lexeme. This is the first phase of the compiler where a lexical analyser acts as an interface between the source code and the other phases.
What is the output of lex program
It is a device or piece of software that automatically creates a lexical analyzer (finite automata) from a LEX source program as its input.
What is a compiler Mcq
An explanation of a compiler is provided below. A compiler is a computer program that takes code written in a high-level language and converts it to assembly language.
What is an object Mcq
The only difference between declaring an object and declaring a variable is that you must use the class name as the data type for objects, which are instances of their classes.
Which concept of FSA is used in the compiler Mcq
|Q.||The concept of FSA is much used in this part of the compiler|
|Answer» a. Lexical analysis|
What is the output of intermediate code generator
Semantic analyzer, the phase that comes before intermediate code generator, provides input in the form of an annotated syntax tree, which can then be transformed into a linear representation, such as postfix notation, since intermediate code is typically machine independent code.
When the lexical analyzer read the source code it scans the code * 1 point line by line word by word letter by letter reads the whole program
Explanation: When reading the source code, the lexical analyzer scans each letter, and when it comes across a whitespace, operator symbol, or special symbol, it determines that a word is finished.
What is a macro used for MCQ
Explained: A macro can represent statements and directives as well as be used in data segments.
Which phase of compiler is syntax analysis Mcq
Explanation: Syntax Analysis is the second phase of the compiler, coming after the lexical analyzer. It is also known as hierarchical analysis or parsing.
Which compiler is used for lexical analysis
The standard Java compiler-compiler, or JavaCC, is a parser and a scanner (lexer) generator all in one. It only requires one input file (referred to as the grammar file), from which it generates classes for both the parser and lexical analysis.
What is token in lexical analysis
Typically a word or punctuation mark, a token is a group of characters with a common meaning that is separated by a lexical analyzer and sent to a parser. A lexeme is the actual character sequence that makes up a particular instance of a token, like num.
Which of the following statements define lexical analysis
The input is a high-level language program, such as a “C” program in the form of a sequence of characters. The correct response is: C Lexical analyzer is the first stage of a compiler.
Which phase of the compiler is lexical Analyser
The lexical analyzer, also known as the scanner, is the first stage of the compiler and it is responsible for identifying the tokens, or basic language units, that make up a language.
What is lexeme in lexical analysis
A lexeme is a group of characters in the source program that match the pattern of a token and are recognized as instances of that token by the lexical analyzer.