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
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
Processing...

Test String

Code Generator

Language

Generated Code

use strict; my $str = '{"type":"inventory","detail":"searchResults","listingId":744625385,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2017,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":27465,"certified":false,"privateSeller":false,"price":30614,"mileage":21817,"vin":"1FTEW1E82HFC04557","priceBadge":""},{"type":"inventory","detail":"searchResults","listingId":742824859,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2016,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":151506,"certified":false,"privateSeller":false,"price":33587,"mileage":21300,"vin":"1FTFW1EG5GFB58894","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":742812409,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2015,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":197067,"certified":false,"privateSeller":false,"price":33733,"mileage":35629,"vin":"1FTEW1EF5FFA98486","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":742064728,"stockType":"New","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2018,"trim":"XL","bodyStyle":"Crew Cab Pickup","customerId":8810,"certified":false,"privateSeller":false,"price":34420,"mileage":7,"vin":"1FTEW1E59JFD37344","priceBadge":""},{"type":"inventory","detail":"searchResults","listingId":744494469,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2015,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":172815,"certified":false,"privateSeller":false,"price":30998,"mileage":49128,"vin":"1FTEW1EG9FFA97172","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":717395539,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2015,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":197467,"certified":false,"privateSeller":false,"price":34999,"mileage":25054,"vin":"1FTEW1EG9FFC39584","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":721487247,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2016,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":197467,"certified":false,"privateSeller":false,"price":33999,"mileage":20475,"vin":"1FTEW1E88GKF27565","priceBadge":"Good Deal | Well-Equipped"}, {"https:\\/\\/cm.phncdn.com\\/videos\\/156734\\/08\\/123456789\\/720P_1500K_123456789.mp4?ttl=8769876987698&ri=87676767698&rs=87656758765876&hashhjgk65786tguhgi67t86yg76786tguhg76553445edytrf87798huh67764e45dytrfuytgv"}Pickup","customerId":197467,"certified":false,"privateSeller":false,"price":34999,"mileage":25054,"vin":"1FTEW1EG9FFC39584","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":721487247,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2016,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":197467,"certified":false,"privateSeller":false,"price":33999,"mileage":20475,"vin":"1FTEW1E88GKF27565","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":736138058,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2015,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":197467,"certified":false,"privateSeller":false,"price":32999,"mileage":33274,"vin":"1FTEW1E80FFB14904","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":718253529,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2016,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":197467,"certified":false,"privateSeller":false,"price":31999,"mileage":29317,"vin":"1FTEW1E83GFC20927","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":713735936,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2015,"trim":"XLT","bodyStyle":"Crew Cab {"https:\\/\\/cm.phncdn.com\\/videos\\/667185\\/08\\/987654321\\/480P_600K_987654321.mp4?87656758765876&hashhjgk65786tguhgi67t86yg76786tguhg76553445edytrf87798huh67764e45dytrfuytgv"}{"type":"inventory","detail":"searchResults","listingId":742824859,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2016,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":151506,"certified":false,"privateSeller":false,"price":33587,"mileage":21300,"vin":"1FTFW1EG5GFB58894","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":742812409,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2015,"trim":"XLT","bodyStyle":"Crew Cab Pickup","customerId":197067,"certified":false,"privateSeller":false,"price":33733,"mileage":35629,"vin":"1FTEW1EF5FFA98486","priceBadge":"Good Deal | Well-Equipped"},{"type":"inventory","detail":"searchResults","listingId":742064728,"stockType":"New","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2018,"trim":"XL","bodyStyle":"Crew Cab Pickup","customerId":8810,"certified":false,"privateSeller":false,"price":34420,"mileage":7,"vin":"1FTEW1E59JFD37344","priceBadge":""},{"type":"inventory","detail":"searchResults","listingId":744494469,"stockType":"Used","make":"Ford","makeId":20015,"model":"F-150","modelId":21095,"year":2015,"trim":"XLT","bodyStyle":"Crew Cab '; my $regex = qr/(https\:\\\/\\\/cm\.phncdn\.com\\\/videos\\\/[0-9]+\\\/[0-9]+\\\/[0-9]+\\\/[a-zA-Z0-9]+\_[a-zA-Z0-9]+\_[0-9]+\.mp4\?)+[a-zA-Z0-9=&]+(?=\"\}) /mp; if ( $str =~ /$regex/g ) { print "Whole match is ${^MATCH} and its start/end positions can be obtained via \$-[0] and \$+[0]\n"; # print "Capture Group 1 is $1 and its start/end positions can be obtained via \$-[1] and \$+[1]\n"; # print "Capture Group 2 is $2 ... and so on\n"; } # ${^POSTMATCH} and ${^PREMATCH} are also available with the use of '/p' # Named capture groups can be called via $+{name}

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 Perl, please visit: http://perldoc.perl.org/perlre.html