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

/
/
s

Test String

Code Generator

Language

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "<my:group1>(.*)<\\/my:group1>"; final String string = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<?mso-infoPathSolution solutionVersion=\"1.0.0.182\" productVersion=\"15.0.0\" PIVersion=\"1.0.0.0\" href=\"http://sp01/hp/Therapy/Forms/template.xsn\" name=\"urn:schemas-microsoft-com:office:infopath:Therapy:-myXSD-2013-03-01T10-07-30\" ?>\n" + "<?mso-application progid=\"InfoPath.Document\" versionProgid=\"InfoPath.Document.3\"?>\n" + "<my:myFields\n" + " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n" + " xmlns:pc=\"http://schemas.microsoft.com/office/infopath/2007/PartnerControls\"\n" + " xmlns:ma=\"http://schemas.microsoft.com/office/2009/metadata/properties/metaAttributes\"\n" + " xmlns:d=\"http://schemas.microsoft.com/office/infopath/2009/WSSList/dataFields\"\n" + " xmlns:q=\"http://schemas.microsoft.com/office/infopath/2009/WSSList/queryFields\"\n" + " xmlns:dfs=\"http://schemas.microsoft.com/office/infopath/2003/dataFormSolution\"\n" + " xmlns:dms=\"http://schemas.microsoft.com/office/2009/documentManagement/types\"\n" + " xmlns:xhtml=\"http://www.w3.org/1999/xhtml\"\n" + " xmlns:my=\"http://schemas.microsoft.com/office/infopath/2003/myXSD/2013-03-01T10:07:30\"\n" + " xmlns:xd=\"http://schemas.microsoft.com/office/infopath/2003\"\n" + " xml:lang=\"en-us\">\n" + " <my:PatientID>1</my:PatientID>\n" + " <my:Name>name</my:Name>\n" + " <my:Age>29.0000000000000</my:Age>\n" + " <my:Gender>gender</my:Gender>\n" + " <my:Date>2015-12-09</my:Date>\n" + " <my:group1>\n" + " <my:group2>\n" + " <my:field1>1</my:field1>\n" + " <my:PName>pname</my:PName>\n" + " <my:PPrice>10000.0000000000</my:PPrice>\n" + " <my:field11 xsi:nil=\"true\"></my:field11>\n" + " </my:group2>\n" + " <my:group2>\n" + " <my:field1>9</my:field1>\n" + " <my:PName>pname\n" + " </my:PName>\n" + " <my:PPrice>10000.0000000000</my:PPrice>\n" + " <my:field11 xsi:nil=\"true\"></my:field11>\n" + " </my:group2>\n" + " </my:group1>\n" + " <my:field4></my:field4>\n" + " <my:field5></my:field5>\n" + " <my:Status>false</my:Status>\n" + " <my:Confirm>false</my:Confirm>\n" + " <my:field6></my:field6>\n" + " <my:field7></my:field7>\n" + " <my:field8></my:field8>\n" + " <my:TPrice>20000</my:TPrice>\n" + " <my:field12></my:field12>\n" + " <my:field13></my:field13>\n" + " <my:insurance>1</my:insurance>\n" + " <my:Partner>partner</my:Partner>\n" + " <my:Doctor>doctor</my:Doctor>\n" + "</my:myFields>"; final Pattern pattern = Pattern.compile(regex, Pattern.DOTALL); final Matcher matcher = pattern.matcher(string); if (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