lex

Lex is a software tool used to create programs called lexical analyzers or scanners. These analyzers break down input text, such as code or data, into smaller pieces called tokens (like words or symbols). Think of it as a high-tech reading tool that identifies specific patterns or elements in text, making it easier for other programs, like parsers, to understand and process the information. Lex is commonly used in developing compilers and interpreters to help computers recognize the structure of programming languages efficiently.