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
No Match

/
/
gm

Test String

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"\s*<div\sid=\""feature-bullets[\s\S]*?(<li>\s*[\s\S]*?[\s]+<\/ul>)"; string input = @"<div id=""feature-bullets"" class=""a-section a-spacing-medium a-spacing-top-small""> <ul class=""a-unordered-list a-vertical a-spacing-none""> <div id=""hsx-rpp-bullet-fits-message"" class=""aok-hidden""> <div class=""a-box a-alert-inline a-alert-inline-success hsx-rpp-fitment-bullets""><div class=""a-box-inner a-alert-container""><i class=""a-icon a-icon-alert""></i><div class=""a-alert-content""> This fits your&nbsp;<span class=""hsx-rpp-bullet-model-info""></span>. </div></div></div> </div> <li id=""replacementPartsFitmentBullet"" data-doesntfitmessage=""We're not sure this item fits your "" data-fitsmessage=""This fits your "" class=""aok-hidden""><span class=""a-list-item""> <span id=""replacementPartsFitmentBulletInner""> <a class=""a-link-normal hsx-rpp-fitment-focus"" href=""#"">Make sure this fits</a> <span>by entering your model number.</span> </span> </span></li> <script type=""text/javascript""> P.when(""ReplacementPartsBulletLoader"").execute(function(module){ module.initializeDPX(); }) </script> <li><span class=""a-list-item""> Precision ground up-cut spiral design </span></li> <li><span class=""a-list-item""> M2 high speed steel runs cooler, lasts longer </span></li> <li><span class=""a-list-item""> Includes sizes 1/4"" x 3"", 1/2"" x 3-1/4"" and 3/8"" x 3"" </span></li> <li><span class=""a-list-item""> 1/4"" shank; </span></li> </ul> <!-- Loading EDP related metadata --> <span class=""edp-feature-declaration"" data-edp-feature-name=""featurebullets"" data-edp-asin=""B006ZBADNW"" data-data-hash=""2400652208"" data-defects=""[{&quot;id&quot;:&quot;defect-mismatch-info&quot;,&quot;value&quot;:&quot;Different from product&quot;},{&quot;id&quot;:&quot;defect-missing-information&quot;,&quot;value&quot;:&quot;Missing information&quot;},{&quot;id&quot;:&quot;defect-unessential-info&quot;,&quot;value&quot;:&quot;Unimportant information&quot;},{&quot;id&quot;:&quot;defect-other-productinfo-issue&quot;,&quot;value&quot;:&quot;Other&quot;}]"" data-metadata=""CATALOG"" data-feature-container-id="" data-custom-event-handler="" data-display-name=""Bullet Points"" data-edit-data-state=""featureBulletsEDPEditData"" data-position="" data-resolver=""CQResolver""></span> <span class=""caretnext"">›</span> <a id=""seeMoreDetailsLink"" class=""a-link-normal"" href=""#productDetails"">See more product details</a> </div>"; RegexOptions options = RegexOptions.Multiline; foreach (Match m in Regex.Matches(input, pattern, options)) { Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index); } } }

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