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

~
~
isg

Test String

Code Generator

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"<dl>(?:[^<]+|<(?!/?dl\b)|(?R))*+</dl>"; string input = @"<p> <span style=""visibility:hidden"" id=""Synonyme""> <span id=""Anker:Synonyme""></span> </span> </p> <div style=""margin-bottom:-0.5em; font-weight:bold;"" title=""bedeutungsgleich gebrauchte Wörter"">Synonyme:</div> <dl> <dd>[1] <a href=""/w/index.php?title=Blutsverwandte&amp;action=edit&amp;redlink=1"" class=""new"" title=""Blutsverwandte (Seite nicht vorhanden)"">Blutsverwandte</a>, <a href=""/wiki/Sippe"" title=""Sippe"">Sippe</a> <dl> <dd>[1a] <a href=""/wiki/Kernfamilie"" title=""Kernfamilie"">Kernfamilie</a></dd> <dd>[1b] <i>abwertend, salopp:</i> <a href=""/wiki/Mischpoke"" title=""Mischpoke"">Mischpoke</a></dd> </dl> </dd> <dd>[2] <a href=""/wiki/Abart"" title=""Abart"">Abart</a>, <a href=""/wiki/Art"" title=""Art"">Art</a>, <a href=""/wiki/Bereich"" title=""Bereich"">Bereich</a>, <a href=""/wiki/Departement"" title=""Departement"">Departement</a>, <a href=""/wiki/Dialekt"" title=""Dialekt"">Dialekt</a>, <a href=""/wiki/Fach"" title=""Fach"">Fach</a>, <a href=""/wiki/Gattung"" title=""Gattung"">Gattung</a>, <a href=""/wiki/Genus"" title=""Genus"">Genus</a>, <a href=""/wiki/Geschlecht"" title=""Geschlecht"">Geschlecht</a>, <a href=""/wiki/Gruppe"" title=""Gruppe"">Gruppe</a>, <a href=""/wiki/Kategorie"" title=""Kategorie"">Kategorie</a>, <a href=""/wiki/Linie"" title=""Linie"">Linie</a>, <a href=""/wiki/Rasse"" title=""Rasse"">Rasse</a>, <a href=""/wiki/Reihe"" title=""Reihe"">Reihe</a>, <a href=""/wiki/Rubrik"" title=""Rubrik"">Rubrik</a>, <a href=""/wiki/Schlag"" title=""Schlag"">Schlag</a> </dd> </dl>"; RegexOptions options = RegexOptions.IgnoreCase | RegexOptions.Singleline; 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