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 = @"<server url=""([^""]+).*?name=""([^""]+).*?cc=""FR.*?sponsor=""([^""]+)"; string input = @"<server url=""http://176.109.165.21/speedtest/upload.php"" lat=""50.8500"" lon=""16.4833"" name=""Swidnica"" country=""Poland"" cc=""PO"" sponsor=""Dolnet Group sp. z o. o."" id=""6174"" url2=""http://ossto.tk/speedtest/upload.php""/><server url=""http://speedtest-01.cloudconnx.net/speedtest/upload.php"" lat=""50.7700"" lon=""0.2800"" name=""Eastbourne"" country=""Great Britain"" cc=""GB"" sponsor=""CloudConnX"" id=""3829"" url2=""http://speedtest-02.cloudconnx.net/speedtest/upload.php"" host=""speedtest-01.cloudconnx.net:8080""/><server url=""http://speedtesta.isleofwightspeedtest.com/speedtest/upload.aspx"" lat=""50.7667"" lon=""-1.3000"" name=""Cowes"" country=""Great Britain"" cc=""GB"" sponsor=""WightFibre"" id=""2886"" url2=""http://speedtestb.isleofwightspeedtest.com/speedtest/upload.aspx"" host=""speedtesta.isleofwightspeedtest.com:8080""/><server url=""http://speedtest.hillcom.de/upload.php"" lat=""50.7511"" lon=""9.2711"" name=""Alsfeld"" country=""Germany"" cc=""DE"" sponsor=""HillCom Solutions"" id=""6599"" url2=""http://speedcheck.hillcom.de/upload.php"" host=""speedtest.hillcom.de:8080""/><server url=""http://speedtest-lk.airbites.net.ua/speedtest/upload.php"" lat=""50.7500"" lon=""25.3333"" name=""Lutsk"" country=""Ukraine"" cc=""UA"" sponsor=""Airbites Ukraine"" id=""3811"" url2=""http://speedtest-lutsk.airbites.net.ua/speedtest/upload.php"" host=""speedtest-lk.airbites.net.ua:8080""/><server url=""http://web.itt.net.ua/test/speedtest/upload.php"" lat=""50.7500"" lon=""25.3333"" name=""Lutsk"" country=""Ukraine"" cc=""UA"" sponsor=""Datagroup Volyn"" id=""2862"" host=""web.itt.net.ua:8080""/><server url=""http://1.bournemouth.speedtest.c4l.co.uk/speedtest/upload.php"" lat=""50.7300"" lon=""-1.8800"" name=""Bournemouth"" country=""Great Britain"" cc=""GB"" sponsor=""CONNEXIONS4LONDON Ltd"" id=""2153"" url2=""http://2.bournemouth.speedtest.c4l.co.uk/speedtest/upload.php"" host=""1.bournemouth.speedtest.c4l.co.uk:8080""/><server url=""http://speedtest.derkom.net.pl/speedtest/upload.php"" lat=""50.7247"" lon=""23.2606"" name=""Zamosc"" country=""Poland"" cc=""PL"" sponsor=""DERKOM SP. J."" id=""2911"" url2=""http://speedtest2.derkom.net.pl/speedtest/upload.php"" host=""speedtest.derkom.net.pl:8080""/><server url=""http://test1.gtnet.pl/speedtest/upload.php"" lat=""50.7247"" lon=""23.2606"" name=""Zamosc"" country=""Poland"" cc=""PL"" sponsor=""GTnet sp.j."" id=""2365"" url2=""http://test2.gtnet.pl/speedtest/upload.php""/><server url=""http://speed1.masconcable.ca/speedtest/upload.php"" lat=""50.7022"" lon=""-119.2722"" name=""Salmon Arm, BC"" country=""Canada"" cc=""CA"" sponsor=""Mascon Cable Systems Inc"" id=""3581"" url2=""http://speed2.masconcable.ca/speedtest/upload.php"" host=""speedtest.masconcable.ca:8080""/><server url=""http://rbx-fr.verelox.com/speedtest/upload.php"" lat=""50.7000"" lon=""3.1700"" name=""Roubaix"" country=""France"" cc=""FR"" sponsor=""Verelox"" id=""6145"" url2=""http://rbx-fr.verelox.com/speedtest/upload.php"" host=""rbx-fr.verelox.com:8080""/><server url=""http://speedtestnet.kubofonista.net/speedtest/upload.php"" lat=""50.6900"" lon=""3.1817"" name=""Roubaix"" country=""France"" cc=""FR"" sponsor=""Kubofonista Network"" id=""3770""/><server url=""http://speedtest.eplay-tv.de/speedtest/upload.php"" lat=""50.6900"" lon=""3.1817"" name=""Roubaix"" country=""France"" cc=""FR"" sponsor=""ePlay TV"" id=""2951"" url2=""http://www.eplay-tv.eu/speedtest/speedtest/upload.php"" host=""speedtest.eplay-tv.de:8080""/><server url=""http://speedtest1.proof.ovh.net/speedtest/upload.php"" lat=""50.6900"" lon=""3.1817"" name=""Roubaix"" country=""France"" cc=""FR"" sponsor=""OVH"" id=""1889"" url2=""http://speedtest2.proof.ovh.net/speedtest/upload.php""/><server url=""http://speedtest.newone.de/speedtest/upload.php"" lat=""50.6872"" lon=""10.9142"" name=""Ilmenau"" country=""Germany"" cc=""DE"" sponsor=""Newone"" id=""3823"" url2=""http://speedtest.ilmenau.net/speedtest/upload.php"" host=""speedtest.newone.de:8080""/><server url=""http://speedtest.sipr.ucl.ac.be/speedtest/upload.php"" lat=""50.6678"" lon=""4.6117"" name=""Louvain-La-Neuve"" country=""Belgium"" cc=""BE"" sponsor=""Universite Catholique de Louvain"" id=""4812"" url2=""http://speedtest-ucl.dyndns.org/speedtest/upload.php"" host=""speedtest.sipr.ucl.ac.be:8080""/><server url=""http://speedtest.verixi.net/mini/speedtest/upload.php"" lat=""50.6678"" lon=""4.6117"" name=""Louvain-La-Neuve"" country=""Belgium"" cc=""BE"" sponsor=""Verixi SPRL"" id=""4904"" url2=""http://speedtest2.verixi.net/mini/speedtest/upload.php""/><server url=""http://speedtest.po.opole.pl/speedtest/upload.php"" lat=""50.6667"" lon=""17.9333"" name=""Opole"" country=""Poland"" cc=""PL"" sponsor=""Opole Univ of Technology"" id=""1165"" url2=""http://217.173.198.235/speedtest/upload.php"" host=""speedtest.po.opole.pl:8080""/><server url=""http://speedtest-l1.nemicom.ua/upload.php"" lat=""50.6439"" lon=""29.9339"" name=""Borodianka"" country=""Ukraine"" cc=""UA"" sponsor=""Nemicom"" id=""5767"" url2=""http://speedtest-l2.nemicom.ua/upload.php"" host=""speedtest.nemicom.ua:8080""/><server url=""http://www.prolink.net.ua/test/speedtest/upload.php"" lat=""50.6439"" lon=""29.9339"" name=""Borodianka"" country=""Ukraine"" cc=""UA"" sponsor=""PROLINK LLC"" id=""5535"" host=""www.prolink.net.ua:8080""/><server url=""http://speedtest.voo.be/speedtest/upload.php"" lat=""50.6333"" lon=""5.5667"" name=""Liege"" country=""Belgium"" cc=""BE"" sponsor=""VOO"" id=""2419"" host=""speedtest.voo.be:8080""/><server url=""http://st.1ptb.com/speedtest/upload.php"" lat=""50.6333"" lon=""38.7000"" name=""Alexeyevka"" country=""Russian Federation"" cc=""RU"" sponsor=""1 Petabyte Ltd."" id=""4582"" url2=""http://93.170.215.20/speedtest/upload.php""/><server url=""http://spdt1.comanet.cz/speedtest/upload.php"" lat=""50.6278"" lon=""15.6103"" name=""Vrchlabi"" country=""Czech Republic"" cc=""CZ"" sponsor=""Ing. Leos Janouch"" id=""4507"" url2=""http://spdt2.comanet.cz/speedtest/upload.php"" host=""spdt1.comanet.cz:8080""/><server url=""http://speedtest.ate.info/speedtest/upload.php"" lat=""50.6233"" lon=""3.1450"" name=""Villeneuve-d'Ascq"" country=""France"" cc=""FR"" sponsor=""ATE"" id=""3572"" url2=""http://speedtest02.ate.info/speedtest/upload.php"" host=""speedtest.ate.info:8080""/><server url=""http://speedtest.itbusiness.cz/upload.php"" lat=""50.6167"" lon=""15.1667"" name=""Turnov"" country=""Czech Republic"" cc=""CZ"" sponsor=""ITBUSINESS s.r.o."" id=""6288"" url2=""http://speedtest.itbss.cz/upload.php"" host=""185.15.111.74:8080""/><server url=""http://test.campus-rv.net/speedtest/upload.php"" lat=""50.6167"" lon=""26.2500"" name=""Rivne"" country=""Ukraine"" cc=""UA"" sponsor=""Campus Networks"" id=""2558"" url2=""http://test.campus.rv.ua/speedtest/upload.php"" host=""test.campus-rv.net:8080""/><server url=""http://speedtest-rivne.airbites.net.ua/speedtest/upload.php"" lat=""50.6167"" lon=""26.2500"" name=""Rivne"" country=""Ukraine"" cc=""UA"" sponsor=""Airbites Ukraine"" id=""4658"" url2=""http://speedtest-rv.airbites.net.ua/speedtest/upload.php"" host=""speedtest-rivne.airbites.net.ua:8080""/>"; 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