In today's information technology world, the size of data is growing by leaps and bounds. IT organizations are processing and storing huge amounts of textual data collected from various sources, such as user actions, leads, searches, shopping data, page views, page hits, and various other forms of user interactions. Search algorithms are used for parsing large texts to extract meaningful pertinent information. Regular expressions are the backbone of many such search algorithms. Regular expressions (or regex in short) are everywhere these days. All the modern programming languages are shipped with a regex module or library to allow programmers to write regex-based programs. Regular expressions are a powerful tool in the programmer's ...

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