Tag: regular expressions
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Regular Expressions in Computational Theory
Regular expressions (regex) are a powerful tool in computational theory, providing a formal way to describe patterns within strings. They are essential in text processing, searching, and automating tasks in software development, particularly in the fields of compilers, lexical analysis, and text pattern recognition. This article explores the fundamentals of regular expressions, their theoretical foundations,…
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Compiler Design: Lexical Analysis
Lexical analysis is a fundamental phase in the compilation process where the source code is converted into a sequence of tokens. These tokens are atomic units of syntax, such as keywords, identifiers, literals, and operators, which are crucial for syntactic and semantic analysis in later stages. Lexical analysis forms the backbone of compiler design, ensuring…