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 = @"<div.+?>(.+)?<\/div>"; string substitution = @" gdgf"; string input = @"<h3>Programma en uitslagen</h3> <table width=""100%""> <tr> <th>ronde</th> <th>dag</th> <th>datum</th> <th></th> <th>thuis</th> <th>uit</th> <th> </th> <th colspan=""1""> </th> <th colspan=""2"">uitslag</th> <th>ct</th> <th>cu</th> <th>&nbsp;</th> </tr> <tr> <td class=""getal"">1</td> <td>Ma.</td> <td>22-08-2016 19:30</td> <td> <div title=""Add to Calendar"" class=""addthisevent""> <span class=""start"">22/08/2016 19:30:00</span> <span class=""end"">22/08/2016 22:30:00</span> <span class=""timezone"">Europe/Amsterdam</span> <span class=""title"">Kamperduin 1 vs Kamperduin 2</span> <span class=""description"">Biljartwedstrijd 3Bnd B1 - Ronde 1</span> <span class=""location""></span> <span class=""organizer"">KNBB</span> <span class=""organizer_email""></span> <span class=""all_day_event"">false</span> <span class=""date_format"">DD/MM/YYYY</span> <span class=""alarm_reminder"">60</span> </div> </td> <td><a href=""http://www.biljartpoint.nl/index.php?page=teamdetail&team_id=29629&compid=2470&poule=A&district=57"">Kamperduin 1</a></td> <td><a href=""http://www.biljartpoint.nl/index.php?page=teamdetail&team_id=29627&compid=2470&poule=A&district=57"">Kamperduin 2</a></td> <td></td> <td>&nbsp;</td> <td></td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr>"; RegexOptions options = RegexOptions.Singleline | RegexOptions.IgnoreCase; Regex regex = new Regex(pattern, options); string result = regex.Replace(input, substitution, 1); } }

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