Regular Expressions 101

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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

Substitution
Processing...

Code Generator

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @".*?<li.*?<a href=""(\/release[^""]+)"">([^<]+)<\/a>.*?<\/li>"; string substitution = @"$2 https://www.beatport.com$1\n"; string input = @" <li class=""bucket-item ec-item horz-release"" data-ec-position=""87"" data-ec-type=""product"" data-ec-name=""Perfect Storm"" data-ec-creative=""Label - Releases"" data-ec-brand=""Interplay Global"" data-ec-category=""Releases"" data-ec-list=""Label - Releases"" data-ec-price=""1.29"" data-ec-d1=""David Deere, Brandon Mignacca""> <div class=""horz-release-artwork-parent""> <a href=""/release/perfect-storm/3265557""> <img class=""horz-release-artwork lazy-load"" src=""https://geo-pro.beatport.com/static/60b2f914842e8b09024754e8a6493b36.png"" data-src=""https://geo-media.beatport.com/image_size/250x250/cd9e7e36-d598-45c2-a05c-d2e286a0bcb1.jpg"" /> </a> </div> <div class=""horz-release-meta-parent""> <div class=""horz-release-meta""> <p class=""buk-horz-release-title""><a href=""/release/perfect-storm/3265557"">Perfect Storm</a></p> <p class=""buk-horz-release-artists""> <a href=""/artist/david-deere/31534"" data-artist=""31534"">David Deere</a>, <a href=""/artist/brandon-mignacca/523042"" data-artist=""523042"">Brandon Mignacca</a> </p> <p class=""buk-horz-release-labels""> <a href=""/label/interplay-global/93385"" data-label=""93385"">Interplay Global</a></p> <p class=""buk-horz-release-released"">2021-02-12</p> </div> <div class=""horz-release-actions-parent""> <div class=""horz-release-actions""> <div class=""horz-release-play-queue""> <button class=""playable-play"" data-type=""release"" data-id=""3265557"" data-track=""14824920""> <svg viewBox=""0 0 200 200"" class=""play-icon""> <use xlink:href=""/static/4fef40cebd6b915bcbe9695d5d543a01.svg#icon-play""></use> </svg> </button> <button class=""playable-queue tooltip-secondary"" data-type=""release"" data-id=""3265557"" data-track=""14824920""> <svg viewBox=""0 0 16 11"" class=""queue-icon""> <use xlink:href=""/static/4fef40cebd6b915bcbe9695d5d543a01.svg#icon-add-queue""></use> </svg> <span class=""tooltiptext"">Add to queue</span> </button> </div> <div class=""buy-button horz-release-buy-button "" data-release=""3265557"" data-price=""$1.29"" > <button class=""add-to-default"">$1.29</button> <button class=""launch-menu""> <div class=""launch-menu-icon""> <svg viewBox=""0 0 200 200"" class=""icon""> <use xlink:href=""/static/4fef40cebd6b915bcbe9695d5d543a01.svg#icon-chevron-down""></use> </svg> </div> <div class=""loading-menu-icon""> <div class=""icon""></div> </div> </button> </div> </div> <a href=""#"" class=""icon icon-ellipsis horz-release-ellipsis mobile-action""></a> </div> </div> </li> <li class=""bucket-item ec-item horz-release"" data-ec-position=""88"" data-ec-type=""product"" data-ec-name=""Glasshouse"" data-ec-creative=""Label - Releases"" data-ec-brand=""Interplay Global"" data-ec-category=""Releases"" data-ec-list=""Label - Releases"" data-ec-price=""1.29"" data-ec-variant=""album"" data-ec-id=""3265543"" data-ec-d1=""Hiski, Milad E""> <div class=""horz-release-artwork-parent""> <a href=""/release/glasshouse/3265543""> <img class=""horz-release-artwork lazy-load"" src=""https://geo-pro.beatport.com/static/60b2f914842e8b09024754e8a6493b36.png"" data-src=""https://geo-media.beatport.com/image_size/250x250/d45916cd-e96a-4669-9cd1-d71b28c21258.jpg"" /> </a> </div> <div class=""horz-release-meta-parent""> <div class=""horz-release-meta""> <p class=""buk-horz-release-title""><a href=""/release/glasshouse/3265543"">Glasshouse</a></p> <p class=""buk-horz-release-artists""> <a href=""/artist/hiski/574515"" data-artist=""574515"">Hiski</a>, <a href=""/artist/milad-e/581122"" data-artist=""581122"">Milad E</a> </p> <p class=""buk-horz-release-labels""> <a href=""/label/interplay-global/93385"" data-label=""93385"">Interplay Global</a></p> <p class=""buk-horz-release-released"">2021-02-05</p> </div> <div class=""horz-release-actions-parent""> <div class=""horz-release-actions""> <div class=""horz-release-play-queue""> <button class=""playable-play"" data-type=""release"" data-id=""3265543"" data-track=""14824888""> <svg viewBox=""0 0 200 200"" class=""play-icon""> <use xlink:href=""/static/4fef40cebd6b915bcbe9695d5d543a01.svg#icon-play""></use> </svg> </button> <button class=""playable-queue tooltip-secondary"" data-type=""release"" data-id=""3265543"" data-track=""14824888""> <svg viewBox=""0 0 16 11"" class=""queue-icon""> <use xlink:href=""/static/4fef40cebd6b915bcbe9695d5d543a01.svg#icon-add-queue""></use> </svg> <span class=""tooltiptext"">Add to queue</span> </button> </div> <div class=""buy-button horz-release-buy-button "" data-release=""3265543"" data-price=""$1.29"" > <button class=""add-to-default"">$1.29</button> <button class=""launch-menu""> <div class=""launch-menu-icon""> <svg viewBox=""0 0 200 200"" class=""icon""> <use xlink:href=""/static/4fef40cebd6b915bcbe9695d5d543a01.svg#icon-chevron-down""></use> </svg> </div> <div class=""loading-menu-icon""> <div class=""icon""></div> </div> </button> </div> </div> <a href=""#"" class=""icon icon-ellipsis horz-release-ellipsis mobile-action""></a> </div> </div> </li>"; RegexOptions options = RegexOptions.Singleline; Regex regex = new Regex(pattern, options); string result = regex.Replace(input, substitution); } }

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 C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx