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/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

Last synced: 07 Jan 2025

https://github.com/coditheck/regex-tutorial

A regular expression or regular expression or pattern is a string of characters that describes, according to a character string that describes, according to a precise syntax, a set of possible possible strings.

regex regex-pattern regex-tutorial regexp regular-expression

Last synced: 30 Jan 2025

https://github.com/rustkas/introducing-regular-expressions-by-erlang

The examples implemented here are inspired by the book's source code - https://learning.oreilly.com/library/view/introducing-regular-expressions/9781449338879/

erlang regular-expression

Last synced: 26 Jan 2025

https://github.com/ahmedelwerdany/deregex

Delete Lines from a file with regex

filesystem regex regexp regular-expression

Last synced: 08 Jan 2025

https://github.com/dubniczky/regex-collection

Collection of regular expressions for matching strings

python regex regular-expression

Last synced: 06 Feb 2025

https://github.com/joiceo/manipulacao-de-textos-usando-o-r

Exercícios do curso "Introdução à Manipulação de Textos Usando o R", da UFJF, feito entre 24/05 e 02/06/2021

r regex regular-expression

Last synced: 09 Jan 2025

https://github.com/basemax/url-validator-nodejs

This is a simple module for validating urls in nodejs and javascript that help you to extract urls from a text, check if a text has a url, check if a text has a specific url, and check if a text is excatly a url.

javascript js nodejs regex regular-expression regular-expression-parser regular-expressions url-validate url-validator validate validator

Last synced: 09 Feb 2025

https://github.com/marceloboeira/grab

👋🏼 like grep, but simpler

bash grep regular-expression shell

Last synced: 07 Feb 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