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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: 2025-02-10 00:25:27 UTC
- JSON Representation
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
https://github.com/marceloboeira/grab
👋🏼 like grep, but simpler
bash grep regular-expression shell
Last synced: 07 Feb 2025
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/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/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/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/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/dubniczky/regex-collection
Collection of regular expressions for matching strings
python regex regular-expression
Last synced: 06 Feb 2025
