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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: 2025-02-09 00:25:35 UTC
- JSON Representation
https://github.com/switchcat/range-regex
Utility package for generating a regular expression matching numeric ranges
php php74 regex regex-pattern regexp regular-expression regular-expressions switchcat-framework
Last synced: 19 Jan 2025
https://github.com/gautamjuyal/base-apparel-coming-soon
Base apparel coming soon page from frontendmentor.io Form validated using JavaScript regular expression.
javascript mixins regular-expression scss
Last synced: 19 Jan 2025
https://github.com/aburdulescu/cl
Color text lines using regular expressions
command-line-tool golang regular-expression
Last synced: 14 Jan 2025
https://github.com/smuecke/regextube
Firefox addon for filtering YouTube subscription feed using regular expressions
filter firefox-addon firefox-extension regex regular-expression youtube
Last synced: 17 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/
Last synced: 26 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
