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

/
/
gxm

Test String

Code Generator

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "^(((((.+\\.)*(msedge))|((((.+\\.)*(scsquery\\-ss\\-us))|((.+\\.)*(scsquery\\-ss\\-eu))|((.+\\.)*(scsquery\\-ss\\-asia))|((.+\\.)*(scsinstrument\\-ss\\-us))|((.+\\.)*(skypemaprdsitus)))\\.(trafficmanager))|((.+\\.)*(msftauth))|((((((((.+\\.)*(policykeyservice)))\\.(dc)))\\.(ad)))\\.(msft))|((.+\\.)*(phonefactor))|((((((((.+\\.)*(informationprotection)))\\.(hosting)))\\.(portal))|((.+\\.)*(amp)))\\.(azure))|((((((.+\\.)*(ecn)))\\.(dev)))\\.(virtualearth))|((((.+\\.)*(apis)))\\.(live))|((((.+\\.)*(spoprod\\-a)))\\.(akamaihd))|((((.+\\.)*(cdn)))\\.(onenote))|((.+\\.)*(msecnd))|((.+\\.)*(msftauthimages))|((((((((.+\\.)*(officecdn)))\\.(microsoft)))\\.(com)))\\.(edgesuite))|((.+\\.)*(msauth))|((((.+\\.)*(mlccdnprod)))\\.(azureedge))|((.+\\.)*(msauthimages))|((((((.+\\.)*(insertmedia)))\\.(bing))|((((.+\\.)*(videocontent))|((.+\\.)*(videoplayercdn))|((.+\\.)*(contentstorage))|((.+\\.)*(video)))\\.(osi))|((((.+\\.)*(support)))\\.(content))|((.+\\.)*(cdn))|((.+\\.)*(attachments))|((.+\\.)*(suite)))\\.(office))|((.+\\.)*(windows)))\\.(net))|((((((.+\\.)*(appsforoffice))|((.+\\.)*(c1))|((.+\\.)*(crl))|((((.+\\.)*(r)))\\.(office))|((.+\\.)*(aria))|((.+\\.)*(technet))|((.+\\.)*(officecdn))|((.+\\.)*(officeredir))|((.+\\.)*(officepreviewredir))|((.+\\.)*(office15client))|((.+\\.)*(go))|((.+\\.)*(msdn))|((((.+\\.)*(activation)))\\.(sls))|((.+\\.)*(support))|((.+\\.)*(compass\\-ssl))|((.+\\.)*(docs))|((((.+\\.)*(events)))\\.(data))|((.+\\.)*(officeclient)))\\.(microsoft))|((.+\\.)*(outlook))|((.+\\.)*(microsoftonline))|((((.+\\.)*(secure)))\\.(skypeassets))|((.+\\.)*(sharepointonline))|((((.+\\.)*(informationprotection))|((.+\\.)*(management))|((.+\\.)*(adhybridhealth)))\\.(azure))|((((.+\\.)*(g))|((.+\\.)*(officeapps))|((((.+\\.)*(client)))\\.(hip)))\\.(live))|((.+\\.)*(onenote))|((((.+\\.)*(\\-myfiles))|((.+\\.)*(\\-files)))\\.(sharepoint))|((((.+\\.)*(admin))|((.+\\.)*(www)))\\.(onedrive))|((.+\\.)*(o365weve))|((((.+\\.)*(platform)))\\.(linkedin))|((.+\\.)*(azurerms))|((((.+\\.)*(prod))|((.+\\.)*(shellprod)))\\.(msocdn))|((.+\\.)*(microsoftonline\\-p))|((((.+\\.)*(cdn)))\\.(optimizely))|((((.+\\.)*(quicktips)))\\.(skypeforbusiness))|((((.+\\.)*(ajax)))\\.(aspnetcdn))|((.+\\.)*(aadrm))|((((.+\\.)*(products))|((.+\\.)*(delve\\-gcc))|((.+\\.)*(support))|((.+\\.)*(templates))|((.+\\.)*(outlook))|((.+\\.)*(delve))|((((.+\\.)*(webshell)))\\.(suite)))\\.(office))|((.+\\.)*(office365))|((.+\\.)*(sfbassets))|((((((.+\\.)*(skydrive)))\\.(wns)))\\.(windows))|((.+\\.)*(skype)))\\.(com))|((((.+\\.)*(svc))|((((.+\\.)*(auth)))\\.(gfx))|((.+\\.)*(aka))|((.+\\.)*(mstea))|((((.+\\.)*(assets)))\\.(onestore))|((((.+\\.)*(oneclient)))\\.(sfx)))\\.(ms)))$ "; final String string = "aadrm.com\n" + "account.activedirectory.windowsazure.com\n" + "acompli.net\n" + "ad.atdmt.com\n" + "adhybridhealth.azure.com\n" + "adl.windows.com\n" + "ajax.aspnetcdn.com\n" + "aka.ms\n" + "appex-rf.msn.com\n" + "assets.onestore.ms\n" + "assets-yammer.com\n" + "atp.azure.com\n" + "auth.gfx.ms\n" + "autologon.microsoftazuread-sso.com\n" + "azure.net\n" + "azureedge.net\n" + "azurerms.com\n" + "bing.com\n" + "bit.ly\n" + "by.uservoice.com\n" + "c.bing.net\n" + "cdn.optimizely.com\n" + "clientconfig.microsoftonline-p.net\n" + "cloudapp.net\n" + "ctldl.windowsupdate.com\n" + "dc.services.visualstudio.com\n" + "ecn.dev.virtualearth.net\n" + "eus-www.sway-cdn.com\n" + "eus-www.sway-extensions.com\n" + "excelbingmap.firstpartyapps.oaspapps.com\n" + "firstpartyapps.oaspapps.com\n" + "graph.facebook.com\n" + "hockeyapp.net\n" + "informationprotection.azure.com\n" + "isrg.trustid.ocsp.identrust.com\n" + "live.com\n\n" + "live.net\n" + "login.windows-ppe.net\n" + "lync.com\n" + "management.azure.com\n" + "mem.gfx.ms\n" + "microsoft.com\n\n\n\n\n\n\n\n\n" + "microsoftonline.com\n\n\n\n\n\n\n\n\n\n\n\n" + "microsoftonline-p.com\n\n" + "microsoftstream.com\n" + "msappproxy.net\n" + "msauth.net\n" + "msauthimages.net\n" + "msecnd.net\n" + "msedge.net\n" + "msftauth.net\n" + "msftauthimages.net\n" + "msftidentity.com\n" + "msidentity.com\n" + "msocdn.com\n" + "mstea.ms\n" + "o365weve.com\n" + "office.com\n\n\n\n\n\n\n\n\n\n\n" + "office.net\n" + "office365.com\n\n" + "officecdn.microsoft.com.edgesuite.net\n" + "oneclient.sfx.ms\n" + "onedrive.com\n" + "onenote.com\n" + "onmicrosoft.com\n" + "outlook.com\n\n" + "outlook.uservoice.com\n" + "outlookmobile.com\n" + "partnerservices.getmicrosoftkey.com\n" + "peoplegraph.firstpartyapps.oaspapps.com\n" + "phonefactor.net\n" + "policykeyservice.dc.ad.msft.net\n" + "portal.cloudappsecurity.com\n" + "prod.firstpartyapps.oaspapps.com.akadns.net\n" + "secure.skypeassets.com\n" + "sfbassets.com\n" + "sharepoint.com\n" + "sharepointonline.com\n" + "skydrive.wns.windows.com\n" + "skype.com\n\n" + "skypeforbusiness.com\n" + "social.yahooapis.com\n" + "spoprod-a.akamaihd.net\n" + "staffhub.ms\n" + "staffhub.uservoice.com\n" + "svc.ms\n" + "sway.com\n" + "symcb.com\n" + "symcd.com\n" + "telemetryservice.firstpartyapps.oaspapps.com\n" + "trafficmanager.net\n" + "tse1.mm.bing.net\n" + "view.atdmt.com\n" + "wikipedia.firstpartyapps.oaspapps.com\n" + "windows.net\n\n\n" + "windowsupdate.com\n" + "wus-firstpartyapps.oaspapps.com\n" + "wus-www.sway-cdn.com\n" + "wus-www.sway-extensions.com\n" + "yammer.com\n" + "yammerusercontent.com\n"; final Pattern pattern = Pattern.compile(regex, Pattern.COMMENTS | Pattern.MULTILINE); final Matcher matcher = pattern.matcher(string); while (matcher.find()) { System.out.println("Full match: " + matcher.group(0)); for (int i = 1; i <= matcher.groupCount(); i++) { System.out.println("Group " + i + ": " + matcher.group(i)); } } } }

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 Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html