Regular expression

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.

• GitHub: https://github.com/topics/regular-expression
• Wikipedia: https://en.wikipedia.org/wiki/Regular_expression
• Created by: Stephen Cole Kleene
• Released: 1950
• Related Topics: pattern-matching, wildcard, glob, grep, awk, sed,
• Aliases: regex, regexp, regular-expressions,
• Last updated: 2025-02-10 00:25:27 UTC
• JSON Representation

https://github.com/muhammadawaisshaikh/remove-spaces-regexr

remove spaces using Regular Expression

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https://github.com/andrewjbateman/vue-regex-project

:clipboard: App to highlight text in a string using vue-js and regular expressions, from Nic Raboy of X-Team.com. Do not update dependencies or it will not work, due to changes within Web-pack and Babel

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https://github.com/thgossler/replacepdfhyperlinks

A CLI tool for Windows and Linux to search and replace hyperlinks in PDF documents with regular expressions.

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Last synced: 30 Jan 2025

https://github.com/raghavendranhp/cardify_extracting_business_card_data_and_management

Cardify is a Streamlit application that simplifies the process of extracting and managing business card data. With Cardify, users can easily upload business card images, extract relevant information using OCR, and manage the extracted data efficiently.

easyocr ocr ocr-text-reader opencv python regular-expression sqlite3 streamlit

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https://github.com/chriskonnertz/regex

Use methods to fluently create a regular expression in PHP

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Last synced: 22 Jan 2025

https://github.com/gpalleschi/jasciistat

A java line command tool to calculate statistic on ascii files new line terminated.

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https://github.com/aburdulescu/cl

Color text lines using regular expressions

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Last synced: 14 Jan 2025

https://github.com/jsumners/go-reggie

A wrapper on top of regexp.Regexp that provides utility methods for accessing named capture group results.

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Last synced: 26 Jan 2025

Regular expression Awesome Lists

Computer-Science-Resources 51 awesome-regex 145

Regular expression Categories

Content 55 Regex engines 38 JavaScript regex evolution 22 Testers 15 JavaScript regex libraries 15 Performance 13 Tutorials 11 Grep-like tools 6 Visualizers 6 Syntax-free regex builders 4 Miscelaneous 4 Articles 3 Books 3 Communities 2 Collections of patterns 2