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/amponsemmichael/library-management-system-test

This repository is created for testing the library management system designed with Java.

git gitactions-workflow integration-testing jacoco-report javafx maven-plugin maven-pom mockito-junit-test regex-match regex-pattern regular-expression unittest

Last synced: 21 Jan 2025

https://github.com/gpalleschi/reponere

Reponere is a bash utility script to replace values in ascii files, the name is latin translation of english word "replace".

bash command-line-tool lc regular-expression replace script utility

Last synced: 09 Jan 2025

https://github.com/gpalleschi/csvutil

CSVutil.sh is a very simple but effective bash shell to manage csv files by command line and generate output on stdout or file.

bash bash-script csv csv-format csv-parsing csv-reader extract regular-expression shell-script tool utility

Last synced: 09 Jan 2025

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

remove spaces using Regular Expression

regex regular-expression typescript

Last synced: 31 Jan 2025

https://github.com/gpalleschi/jasciistat

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

ascii extract-string regular-expression statistic

Last synced: 09 Jan 2025

https://github.com/thgossler/replacepdfhyperlinks

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

cli hyperlinks pdf regular-expression replace

Last synced: 30 Jan 2025

https://github.com/mooseburger1/nfl-social-network-analysis

Performing Social Network Analysis on the 2017 NFL schedule - Scraping the web with Python and Pandas

data-mining data-science data-visualization gephi matplotlib networkx networkx-graph numpy pandas-dataframe python-3 regular-expression social-network-analysis web-scraping

Last synced: 24 Jan 2025

https://github.com/chriskonnertz/regex

Use methods to fluently create a regular expression in PHP

api expression fluent interface library oop php regex regex-string regular regular-expression

Last synced: 22 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