CS $4308$: Concepts of Programming Languages Fall $2023$ Kennesaw State University Project $($Part $1)$ Part $1$: Lexical Analyzer Lexical Analysis is the process of converting a sequence of characters into a sequence of tokens. A program or function that performs lexical analysis is called a lexical analyzer, scanner or lexer. Lexical Analyzer in Compiler: Lexical Analyzer is part of the compiler that reads the source text and performs the following tasks: $$ Stripping out comments and whitespaces. $$ Identification of lexemes. $$ Lexical analyzer keep track of the number of newline characters seen, so it can associate a line number with each error message. $$ Correlating error messages generated by compiler to source program. $$ For some programs that uses macro preprocessor $,$ the expansion of macros is performed by lexical analyzer. Terminologies used in Lexical Analysis: Lexemes: Logical grouping of characters.$($A sequence of characters in the source program that matches the pattern for a token.$)$ Tokens: The