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 = @"""logUser""\s*\:([^\,]+),"; string input = @"{ ""id"": 1, ""numeracao"": ""001"", ""logUser"": 100, ""permissionario"": { ""id"": 3113715, ""nome"": ""ARTHUR MATHEUS SÉRGIO DA SILVA"", ""dataDeNascimento"": ""2000-12-10"", ""endLogradouro"": ""RUA TERESINA"", ""endNumero"": ""89465468"", ""endBairro"": ""ROSA DOS VENTOS"", ""endCidade"": ""PARNAMIRIM"", ""endUf"": ""RN"", ""endCep"": ""59142125"", ""endComplemento"": null, ""telefoneFixo"": null, ""telefoneMovel"": ""(94) 949849849"", ""email"": null, ""logDate"": ""2019-01-16"", ""logUser"": null, ""sexo"": ""MASCULINO"", ""foto"": null, ""cpf"": ""10322314593"", ""estadoCivil"": ""CASADO"", ""cnhNumero"": null, ""cnhCategoria"": null, ""cnhValidade"": null, ""rgNumero"": ""64684654"", ""rgOrgaoExpeditor"": ""SSP"", ""rgDataEmissao"": null, ""rgUF"": ""RN"", ""status"": true }, ""veiculo"": { ""id"": 3, ""placa"": ""JUQ9196"", ""marca"": ""RENAULT"", ""modelo"": ""SC"", ""renavam"": ""54840252144"", ""anoDeFabricacao"": ""2006"", ""corPredominante"": ""BRANCO"", ""logCidadao"": null, ""status"": true, ""logUser"": null, ""logDate"": ""2019-01-16T11:05:10.425"", ""version"": 1 }, ""logDate"": ""2019-01-16T11:05:13.264"", ""status"": true, ""version"": 0, ""motorista"": { ""id"": 3113717, ""nome"": ""DAVI LEVI GALVÃO"", ""dataDeNascimento"": ""1996-10-20"", ""endLogradouro"": ""RUA FRANCISCO FERREIRA DA SILVA"", ""endNumero"": ""911"", ""endBairro"": ""VALE DO SOL"", ""endCidade"": ""PARNAMIRIM"", ""endUf"": ""RN"", ""endCep"": ""59143025"", ""endComplemento"": null, ""telefoneFixo"": ""8429884472"", ""telefoneMovel"": ""84995302167"", ""email"": ""ddavilevigalvao@mtic.net.br"", ""logDate"": ""2019-01-16"", ""logUser"": null, ""sexo"": ""MASCULINO"", ""foto"": null, ""cpf"": ""98842966428"", ""estadoCivil"": ""CASADO"", ""cnhNumero"": null, ""cnhCategoria"": null, ""cnhValidade"": null, ""rgNumero"": ""184962122"", ""rgOrgaoExpeditor"": ""SSP"", ""rgDataEmissao"": null, ""rgUF"": ""RN"", ""status"": true } } "; 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