Regular expression topic

A regular expression (shortened as regex or regexp), sometimes referred to as rational expression, is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by string-searching algorithms for “find” or “find and replace” operations on strings, or for input validation.

Regular expression techniques are developed in theoretical computer science and formal language theory. They are used in search engines, in search and replace dialogs of word processors and text editors, in text processing utilities such as sed and AWK, and in lexical analysis. Regular expressions are also supported in many programming languages.

Different syntaxes for writing regular expressions have existed since the 1980s, one being the POSIX standard and another, widely used, being the Perl syntax.

List Regular expression repositories

grex

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A command-line tool and Rust library with Python bindings for generating regular expressions from user-provided test cases

melody

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Melody is a language that compiles to regular expressions and aims to be more readable and maintainable

oniguruma

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regular expression library

magic-regexp

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A compiled-away, type-safe, readable RegExp alternative

commonregex

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🍫 A collection of common regular expressions for Go

pomsky

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A new, portable, regular expression language

regexp2

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A full-featured regex engine in pure Go based on the .NET engine

Onigmo

612
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Onigmo is a regular expressions library forked from Oniguruma.

wild-wild-path

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🤠 Object property paths with wildcards and regexps 🌵

nvim-regexplainer

596
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Describe the regexp under the cursor