The parser or syntactic analyzer obtains a string of tokens from the lexical analyzer and…

Syntax analysis or parsing is the second phase of a compiler. In this chapter, we…

DFA minimization stands for converting a given DFA to its equivalent DFA with minimum number…

The lexical analyzer needs to scan and identify only a finite set of valid string/token/lexeme…

Finite automata is a state machine that takes a string of symbols as input and…

Consider the following grammar fragment: stmt → if expr then stmt | if expr then…

There are 3 specifications of tokens: 1)Strings 2) Language 3)Regular expression Strings and Languages ·         An alphabet or character…

Lexemes are said to be a sequence of characters (alphanumeric) in a token. There are…

The lexical analyzer scans the input from left to right one character at a time.…

Lexical analyzer performs below given tasks: Helps to identify token into the symbol table Removes…