Regular Expressions 101

Save & Manage Regex

  • Current Version: 1
  • Save & Share
  • Community Library

Flavor

  • PCRE2 (PHP)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java
  • .NET 7.0 (C#)
  • Rust
  • PCRE (Legacy)
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests
Sponsors
An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Character class intersection
    [\w&&[^\d]]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
Processing...

Test String

Substitution
Processing...

Code Generator

Language

Generated Code

// include the latest version of the regex crate in your Cargo.toml extern crate regex; use regex::Regex; fn main() { let regex = Regex::new(r"(?m)(?<=,\s*)(?:([A-Z])\.?[a-üA-Z{\\'}]*(?:(-)| )?)(?:([A-Z])(\.?)[a-üa-zA-Z{\\'}]*(?:(-)| )?)?(?:([A-Z])(\.)?[a-zA-Z{\\'}]*(?:(-)| )?)?(?= and|$)").unwrap(); let string = "Copiez votre liste d'auteur ici. Elle doit être sous la forme Bennett, Elena M. and Baird, Julia and Baulch, Helen and Chaplin-Kramer, Rebecca and Fraser, Evan and Loring, Phil and Morrison, Peter and Parrott, Lael and Sherren, Kate and Winkler, Klara J. and Cimon-Morin, Jérôme and Fortin, Marie-Josée and Kurylyk, Barret L. and Lundholm, Jeremy and Poulin, Monique and Rieb, Jesse T. and Gonzalez, Andrew and Hickey, Gordon M. and Humphries, Murray and Krishna {Bahadur KC} and Lapen, David Certain prénoms composés (ici Ruel, Jean-Claude) doivent être terminé à l'aide du deuxième outil: "; let substitution = "$1.$2$3$4$5$6$7"; // result will be a String with the substituted value let result = regex.replace_all(string, substitution); println!("{}", result); }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/