Regular Expressions 101

Save & Share

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

import Foundation let pattern = ##"(?:^|\n)#EXTINF:(?:-?\d+(\.\d+)?),(.*?)[\r\n]+(.*)"## let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines) let testString = ##""" #EXTM3U #EXTINF:O,Telegool TV Bein Sport 1 http://stream99.astalavistababy.xyz/priv/b1111/playlist.m3u8 #EXTINF:0,Telegool TV Bein Sport 2 http://stream99.astalavistababy.xyz/selcuksportsfutbol/bein2222/playlist.m3u8 #EXTINF:0,Telegool TV Bein Sport 3 http://stream99.astalavistababy.xyz/selcuksportsfutbol/bein3333/playlist.m3u8 #EXTINF:0,Telegool TV Bein Sport 4 http://stream99.astalavistababy.xyz/selcuksportsfutbol/bein4444/playlist.m3u8 #EXTINF:0,Telegool TV Beinmax 1 http://stream99.astalavistababy.xyz/selcuksportsfutbol/beinmax1111/playlist.m3u8 #EXTINF:0,Telegool TV Beinmax 2 http://stream99.astalavistababy.xyz/selcuksportsfutbol/beinmax2222/playlist.m3u8 #EXTINF:0,Telegool TV Tivibu Sport 1 http://stream99.astalavistababy.xyz/selcuksportsfutbol/tivibu11/playlist.m3u8 http://stream99.astalavistababy.xyz/selcuksportsfutbol/tivibu22/playlist.m3u8 #EXTINF:0,Telegool TV Tivibu Sport 3 http://stream99.astalavistababy.xyz/selcuksportsfutbol/tivibu33/playlist.m3u8 #EXTM3U #EXTINF:-1,-------------- | SPOR NOX | -------------- http://nox101.com:8080/live/orkun2020/orkun2021/268.m3u8 #EXTINF:-1,Bein Sport 1 Hd http://nox101.com:8080/live/orkun2020/orkun2021/7.m3u8 #EXTINF:-1,beIN Sport 1 Hd [ 720p ] http://nox101.com:8080/live/orkun2020/orkun2021/16271.m3u8 #EXTINF:-1,BeIN Sports 1 Sd [ 60 Fps ] http://nox101.com:8080/live/orkun2020/orkun2021/16273.m3u8 #EXTINF:-1,beIN Sport 1 Hd [ dt ] http://nox101.com:8080/live/orkun2020/orkun2021/20279.m3u8 #EXTINF:-1,Bein Sport 1 Hd 1080 Hevc http://nox101.com:8080/live/orkun2020/orkun2021/8.m3u8 #EXTINF:-1,BeIN Sports 1 Hd 1080i 265.hevc http://nox101.com:8080/live/orkun2020/orkun2021/16272.m3u8 #EXTINF:-1,Bein Sport 1 Hevc [ 1920 x 1080 ] http://nox101.com:8080/live/orkun2020/orkun2021/16274.m3u8 #EXTINF:-1,Bein Sport 1 Hd 1080i http://nox101.com:8080/live/orkun2020/orkun2021/11.m3u8 #EXTINF:-1,BeIN Sports 1 Hd 265.hevc [ 60 Fps ] http://nox101.com:8080/live/orkun2020/orkun2021/14.m3u8 #EXTINF:-1,Bein Sport Sd 1 Mobile http://nox101.com:8080/live/orkun2020/orkun2021/15.m3u8 #EXTINF:-1,Bein Sport 1 Hd [ yedek ] http://nox101.com:8080/live/orkun2020/orkun2021/16.m3u8 #EXTINF:-1,Bein Sport 1 [ 360P ] http://nox101.com:8080/live/orkun2020/orkun2021/24.m3u8 #EXTINF:-1,Bein Sport 1 [ 480P ] http://nox101.com:8080/live/orkun2020/orkun2021/23.m3u8 #EXTINF:-1,Bein Sport 1 [ 576P ] http://nox101.com:8080/live/orkun2020/orkun2021/22.m3u8 #EXTINF:-1,Bein Sport 1 4k http://nox101.com:8080/live/orkun2020/orkun2021/9.m3u8 #EXTINF:-1,Bein Sport 1 4k 1080 Hevc http://nox101.com:8080/live/orkun2020/orkun2021/10.m3u8 #EXTINF:-1,Bein Sport 2 Sd http://nox101.com:8080/live/orkun2020/orkun2021/17.m3u8 #EXTINF:-1,Bein Sport 2 Mobile http://nox101.com:8080/live/orkun2020/orkun2021/18.m3u8 #EXTINF:-1,Bein Sport 2 Hd http://nox101.com:8080/live/orkun2020/orkun2021/19.m3u8 """## let stringRange = NSRange(location: 0, length: testString.utf16.count) let matches = regex.matches(in: testString, range: stringRange) var result: [[String]] = [] for match in matches { var groups: [String] = [] for rangeIndex in 1 ..< match.numberOfRanges { let nsRange = match.range(at: rangeIndex) guard !NSEqualRanges(nsRange, NSMakeRange(NSNotFound, 0)) else { continue } let string = (testString as NSString).substring(with: nsRange) groups.append(string) } if !groups.isEmpty { result.append(groups) } } print(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 Swift 5.2, please visit: https://developer.apple.com/documentation/foundation/nsregularexpression