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 = @"(?<=class=\\""h3 u-block\\"">)[\d\.]+"; string input = @"<select data-testid=\""price-max-select\""><option value=\""\"">Beliebig</option><option value=\""500\"">500 €</option><option value=\""1000\"">1.000 €</option><option value=\""1500\"">1.500 €</option><option value=\""2000\"">2.000 €</option><option value=\""2500\"">2.500 €</option><option value=\""3000\"">3.000 €</option><option value=\""3500\"">3.500 €</option><option value=\""4000\"">4.000 €</option><option value=\""4500\"">4.500 €</option><option value=\""5000\"">5.000 €</option><option value=\""6000\"">6.000 €</option><option value=\""7000\"">7.000 €</option><option value=\""8000\"">8.000 €</option><option value=\""9000\"">9.000 €</option><option value=\""10000\"">10.000 €</option><option value=\""11000\"">11.000 €</option><option value=\""12000\"">12.000 €</option><option value=\""13000\"">13.000 €</option><option value=\""14000\"">14.000 €</option><option value=\""15000\"">15.000 €</option><option value=\""17500\"">17.500 €</option><option value=\""20000\"">20.000 €</option><option value=\""22500\"">22.500 €</option><option value=\""25000 +KLIMA+TEMPOMAT+EURO 5</span></div></div><div class=\""g-col-5\""><div class=\""price-block u-margin-bottom-9\""><span class=\""h3 u-block\"">3.100&nbsp;€</span><span class=\""link financing-integration-lp-links\"" data-budgetstatus=\""default\"" data-prg-href=\""https://www.mobile.de/finanzierung/route/outlink/1?adId=361635483&amp;loanDuration=60 e+KLIMA+TEMPOMAT+EURO 5</span></div></div><div class=\""g-col-5\""><div class=\""price-block u-margin-bottom-9\""><span class=\""h3 u-block\"">100&nbsp;€</span><span class=\""link financing-integration-lp-links\"" data-budgetstatus=\""default\"" data-prg-href=\""https://www.mobile.de/finanzierung/route/outlink/1?adId=361635483&amp;loanDuration=60"" ""e+KLIMA+TEMPOMAT+EURO 5</span></div></div><div class=\""g-col-5\""><div class=\""price-block u-margin-bottom-9\""><span class=\""h3 u-block\"">3.100&nbsp;€</span><span class=\""link financing-integration-lp-links\"" data-budgetstatus=\""default\"" data-prg-href=\""https://www.mobile.de/finanzierung/route/outlink/1?adId=361635483&amp;loanDuration=60 e+KLIMA+TEMPOMAT+EURO 5</span></div></div><div class=\""g-col-5\""><div class=\""price-block u-margin-bottom-9\""><span class=\""h3 u-block\"">20.100&nbsp;€</span><span class=\""link financing-integration-lp-links\"" data-budgetstatus=\""default\"" data-prg-href=\""https://www.mobile.de/finanzierung/route/outlink/1?adId=361635483&amp;loanDuration=60"" "; 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