Regex Introduction
Regular expressions are patterns used to match character combinations in strings.
Regex (abbreviation for regular expressions) is a powerful tool for text processing. It is used to search for, match, and extract specific patterns from text.
It is widely used to find or replace words in a text, extract information, and validate input.
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Conclusion
Regular expressions are a powerful tool for text processing. They allow you to search for, match, and extract specific patterns from text. By understanding the basic syntax, repetition, grouping, alternation, escape characters, identifiers, lookarounds, flags, and matching, you can create complex patterns to match the text you need. Regular expressions are widely used in programming languages, text editors, and command-line tools for text processing.