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

@
@
gs

Test String

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"<strong>\s*([\d.]+)\s*<small style=""color:white;"">"; string input = @" <div class=""row""> <div class=""col-xs-12 col-sm-10 col-sm-offset-1 col-md-8 col-md-offset-2""> <div> <h2 class=""heading-large""> <strong> 61312.3 <small style=""color:white;"">UAH</small> </strong> <small><span class=""glyphicon glyphicon-arrow-down text-danger""></span></small> </h2> <br> <!--<a href=""#"" class=""showRateDetail"" style=""color:#BFECFF;"">Подробности конвертации <span class=""caret_blue""></span></a>--> <div> <div class=""col-xs-12"" style=""margin-left:0px;padding-left:0px;padding-top:10px;""> <table class=""table table-condensed"" style=""opacity:0.7;""> <thead> <tr align=""left""> <th>Биржа</th> <th>Курс</th> <th>Суточный объем</th> </tr> </thead> <tbody> <tr align=""left""> <td><a href=""/exchange/exmo/"" style=""color:inherit;"">Exmo</a></td> <td>61649.99999999</td> <td> <div class=""progress"" style=""opacity:0.6;""> <div class=""progress-bar progress-bar-info"" role=""progressbar"" aria-valuenow=""53.68"" aria-valuemin=""0"" aria-valuemax=""100"" style=""width: 53.68%;""> <span style=""color:#004F70;padding-left:5px;"">17</span> </div> </div> </td> </tr><tr align=""left""> <td><a href=""/exchange/kuna/"" style=""color:inherit;"">Kuna</a></td> <td>60921.00000000</td> <td> <div class=""progress"" style=""opacity:0.6;""> <div class=""progress-bar progress-bar-info"" role=""progressbar"" aria-valuenow=""46.32"" aria-valuemin=""0"" aria-valuemax=""100"" style=""width: 46.32%;""> <span style=""color:#004F70;padding-left:5px;"">15</span> </div> </div> </td> </tr> <tr align=""left""> <td colspan=""2""> <b>Общий объем</b> </td> <td> <b>33 BTC</b> </td> </tr> <tbody> </table> </div> </div> </div> </div> </div> "; RegexOptions options = 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