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

/
/
g

Test String

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"<userConfiguration\s*id=(?<Id>[.]|[^<]*)>\s*<user\s*FullName=\""(?<FullName>[.]|[^\""]*)\""\s*LoginName=\""(?<LoginName>[.]|[^\""]*)\""\s*Group=\""(?<Group>\d{1,3})"; string input = @"<userConfiguration id=""myId""> <user FullName="" LoginName=""User-1-LoginName"" Group=""0"" Level=""0"" StartingDate=""2020-08-04"" ExpiredDate=""2021-02-05"" salt=""4Bn0RL/qMZeBFIck+o+oHCVLtRwJzgxN4tAUV4zhCUMZSVNpdhkgguPuLCt4/k4L"" data=""dXBIUUqmYsJ5llcDKHGbYahM8YETEpkx31n+ridQKZD6QtxtuBtgsD6+kkI0YGRleV17O3aN4ieCCjJ3l1IdEOvD4jjb8NTFCr4vXZHh2K+hhl9LyisKopbkNbo6ExHC4f1RC4RNJDTcHrTp7SqetpSYzvQ/Tn8/0r/PLGlbOn2ihbTtZkC+r4QSKjAtE21sB0bvBrCd8yyI37vbLqfJrXs0mVyll63AdNcfzNWoMETNEIZWGiWyRw+nOlC8gA3ag4909dR6rk7vX3lBSNgUBwegcTeJyznpZLq5yppj5vTQe0kZZbbfxuFcDEktyH4O""/> <encodedData><![CDATA[[header] Description=User Configuration file for WTT_ENC Version=4 User=eckrodt Timestamp=05.08.2020 13:42:48 Tool=M1ServiceCenter LicenseOption=1 [body] IZ4J7wFwyNRZn9syvJSQhJFo8Oipq15O4Ybe5a/sv65uqXI3d6lDY1rb5IrtF/r95PegytemC+6lxuQxwptSjKF2gRUZB3vN Q8HXbP3OWh2gImJHjc6Yz+Tw6f+D+Herq/Plr6LMh2in1mKfiuof]]></encodedData> </userConfiguration> <userConfiguration\s*id=(?<Id>[.]|[^<]*)>\s*<user\s*FullName=\""(?<FullName>[.]|[^\""]*)\""\s*LoginName=\""(?<LoginName>[.]|[^\""]*)\""\s*Group=\""(?<Group>\d{1,3})"; foreach (Match m in Regex.Matches(input, pattern)) { 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