Lex code to count total number of tokens
Lex is a computer program that generates lexical analyzers and was written by Mike Lesk and Eric Schmidt. Lex reads an input stream specifying the lexical analyzer and outputs source code implementing the lex in the C programming language.
Tokens: A token is a group of characters forming a basic atomic chunk of syntax i.e. token is a class of lexemes that matches a pattern. Eg – Keywords, identifier, operator, separator.
Input: int p=0, d=1, c=2; Output: total no. of tokens = 13
Below is the implementation of the above explanation:
Attention reader! Don’t stop learning now. Get hold of all the important CS Theory concepts for SDE interviews with the CS Theory Course at a student-friendly price and become industry ready.