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Regular Expression

The Perl programming language, which was first released in 1987, was one of the first programming languages to introduce the powerful and expressive Regular Expression or RegEx to string processing. Perl Programming Language became popular in the programming community for efficient string processing.

Perl Programming Language. Source: itzone.com.vn

Perl Programming Language. Source: itzone.com.vn

Regular Expression in Python Programming Language

The Python programming language first released in 1991 took inspiration and concepts from Perl for string processing needs. In the Python development process, Guido van Rossum, who designed the language, wanted to combine RegEx in the Perl programming language in string processing with a syntax that is easier to read and understand.

Python Regular Expression, also known as Pyton RegEx, is a special process of manipulating a string used to identify certain character search patterns. This operation is used to match text with characters contained in the frequently used ASCII or Latin alphabets, as well as with Unicode characters that can be used to match strings in foreign languages.

The special technique used is also a form of processing a string to find and match certain patterns on a given string. The use of Python RegEx allows a developer or user of the Python programming language to search for characters or sequences of characters in a given string, which of course corresponds to a predetermined pattern.

So that with the ability of Python RegEx, programmers and a user of the Python programming language can search, extract, or manipulate data in strings more effectively and efficiently, of course, this is very useful in the creation and development of various applications, such as parsing and processing data, validating user input, and much more.

're' module in Regular Expression in Python programming language

Python introduced a 're' module that allows the use of RegEx in string processing. This gives the developers of the Python programming language developers a powerful tool for matching and manipulating patterns in strings. This is what underlies the concept of Expression Regulation in Python RegEx.