Regular Expressions 101

Save & Share

  • Regex Version: ver. 2
  • Update Regex
    ctrl+⇧+s
  • Save new Regex
    ctrl+s
  • Add to Community Library

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

Sponsors
There are currently no sponsors. Become a sponsor today!
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]
  • 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
No Match

/
/
gm

Test String

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)(^[A-Za-z \/]+[ ,])( [A-Z0-9- ]+)[ ][-][ ]\b[0-9-]{3,}\b|(^[A-Za-z \/]+[ ,])( [A-Z0-9- ]+)[ ][-][ ]|(^[A-Za-z \/]+[ ,])[A-Z0-9-\/]+[ ]|(^[A-Za-z \/]+[ ,])( [A-Z]+ [0-9A-Za-z]+)[ ][-][ ]").unwrap(); let string = "Galtronics, 62-29-03 - Swivel Mounting Bracket For PEAR Panel Antennas Wall & Pole Installation Microlab/FXR, D2-83FE - 2-way Splitter, 617-5925Mhz Microlab, D2-J12 - 698-2700 2-Way Low PIM Splitter Microlab, JA-05TN - 0.141in Low PIM Cable JMA Wireless, JMA-4M4F-14S-3 - Jumper, 4.3‐10 Male ‐ 4.3‐10 Female, 14S cable, 3 feet; for diplexer output Galtronics, PEAR M5277i - 4.3-10 DIN - Directional Dual Polarized MIMO Outdoor/In-Building Antenna, Port 1 and 2: 698-2700 MHz, 2x 4.3-10 DIN Female with Cable - P/N: 02130261-05277 JMA Wireless, SX08FRO128-01 - 8 Port Directional MIMO Venue Panel JMA Wireless, TRL7S8A19AWAS - RU Quad Band 31dBm AC Powered WDM SMF SC-APC JMA Wireless, TRLOPK-4 - Outdoor Protection Kit IP66 for Low power RUs 4.3 JMA Wireless T7S8SC8A19AWEWVAS- RU 5 BAND 700LTE-SMR800 COMMER AMPS850-PCS1900-AWS3 VHP AC POWER WDM SMF SC JMA Wireless, TSC2W-U - 2-way Splitter/Combiner 698-2690MHz No Name, Wooden Crate - 2 Band Mount 13 1/2 x 17 No Name, Wooden Crate - 6 Band Mount 15 x 17 JMA Wireless, UPL-DM-12 - 7-16 DIN Male Connector, 1/2\" Plenum JMA Wireless TNF-8A-UL/R Teko Notch Filter: pass band AMPS850-UL, stop band PS800-DL Microlab DN-44FE Low PIM 698-2700MHz 4.8dB Coupler (4.3-10 F)"; // result will be an iterator over tuples containing the start and end indices for each match in the string let result = regex.captures_iter(string); for mat in result { println!("{:?}", mat); } }

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/