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 = @"MaximumBatchQuantity[^:]+:(?<MaximumBatchQuantity>[^,]+)"; string input = @"{""bdy"":{""msg"":""HttpRequest"",""addInfo"":[{""key"":""Url"",""value"":""https://isp0064x.st.ad.XXXXX.com/XXXXXOmniFulfillmentServerApp/api/Assignment/Auto/""},{""key"":""Content"",""value"":""{\""Filters\"":[],\""MaximumBatchQuantity\"":20,\""AllowedSLAMilliSeconds\"":4500,\""AssociateFirstName\"":\""Aliona\"",\""AssociateId\"":\""2795969\"",\""AssociateLastName\"":\""Cieniawa\"",\""Header\"":{\""ApiVersion\"":null,\""AppVersion\"":\""18.3.0.15617\"",\""JsonWebToken\"":null,\""MessageId\"":\""de959d4f-6a7d-4c0c-98d3-1143064b4300\""},\""IsOffline\"":false,\""SLARequestKey\"":\""AutoBatch\"",\""StoreNumber\"":\""0064\""}""},{""key"":""CorrelationId"",""value"":""},{""key"":""MessageId"",""value"":""3a04038d-64e2-493c-b489-90a922de1980""}]},""hdr"":{""level"":""Verbose"",""timestamp"":""2018-06-04T21:03:19.6347626Z"",""fxsrc"":""LogRequestInfo"",""lineNum"":710,""userId"":""2795969"",""loc"":""Store"",""locId"":""0064"",""ip"":""10.224.255.15"",""hostName"":""K-W10ME-7463352"",""macaddress"":""00-16-XX-16-A6-FA"",""eventid"":0,""appVersion"":""18.3.0.15617"",""appName"":""OmniFulfillment"",""deviceModel"":""XX500"",""osVersion"":""10.0.14393.2007"",""firmwareVersion"":""1049.7.18039.0"",""networkSignalStrength"":""4"",""isConnected"":""True""},""ver"":""0.1""}"; 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