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 = @"load_date\\\"":\s+\\\""(?<load_date>[^\\]+)"; string input = @" {""_c0"":{""0"":""["",""1"":"" {"",""2"":"" \""table_name\"": \""pc_dwh_rdv.gdh_ls2lo_s99\"",""3"":"" \""deleted_count\"": 18"",""4"":"" \""redelivered_count\"": 0"",""5"":"" \""load_date\"": \""2023-07-27\"",""6"":"" }"",""7"":"" {"",""8"":"" \""table_name\"": \""pc_dwh_rdv.gdh_spar_s99\"",""9"":"" \""deleted_count\"": 8061"",""10"":"" \""redelivered_count\"": 1"",""11"":"" \""load_date\"": \""2023-07-27\"",""12"":"" }"",""13"":"" {"",""14"":"" \""table_name\"": \""pc_dwh_rdv.gdh_tf3tx_s99\"",""15"":"" \""deleted_count\"": 366619"",""16"":"" \""redelivered_count\"": 0"",""17"":"" \""load_date\"": \""2023-07-27\"",""18"":"" }"",""19"":"" {"",""20"":"" \""table_name\"": \""pc_dwh_rdv.gdh_wechsel_s99\"",""21"":"" \""deleted_count\"": 2"",""22"":"" \""redelivered_count\"": 0"",""23"":"" \""load_date\"": \""2023-07-27\"",""24"":"" }"",""25"":"" {"",""26"":"" \""table_name\"": \""pc_dwh_rdv.gdh_revolvingcreditcard_s99\"",""27"":"" \""deleted_count\"": 1285"",""28"":"" \""redelivered_count\"": 0"",""29"":"" \""load_date\"": \""2023-07-27\"",""30"":"" }"",""31"":"" {"",""32"":"" \""table_name\"": \""pc_dwh_rdv.gdh_phd_s99\"",""33"":"" \""deleted_count\"": 2484"",""34"":"" \""redelivered_count\"": 204"",""35"":"" \""load_date\"": \""2023-07-27\"",""36"":"" }"",""37"":"" {"",""38"":"" \""table_name\"": \""pc_dwh_rdv.gdh_npk_s99\"",""39"":"" \""deleted_count\"": 1705"",""40"":"" \""redelivered_count\"": 0"",""41"":"" \""load_date\"": \""2023-07-27\"",""42"":"" }"",""43"":"" {"",""44"":"" \""table_name\"": \""pc_dwh_rdv.gdh_npk_s98\"",""45"":"" \""deleted_count\"": 1517"",""46"":"" \""redelivered_count\"": 0"",""47"":"" \""load_date\"": \""2023-07-27\"",""48"":"" }"",""49"":"" {"",""50"":"" \""table_name\"": \""pc_dwh_rdv.gdh_kontokorrent_s99\"",""51"":"" \""deleted_count\"": 12998"",""52"":"" \""redelivered_count\"": 0"",""53"":"" \""load_date\"": \""2023-07-27\"",""54"":"" }"",""55"":"" {"",""56"":"" \""table_name\"": \""pc_dwh_rdv.gdh_gds_s99\"",""57"":"" \""deleted_count\"": 13"",""58"":"" \""redelivered_count\"": 0"",""59"":"" \""load_date\"": \""2023-07-27\"",""60"":"" }"",""61"":"" {"",""62"":"" \""table_name\"": \""pc_dwh_rdv.gdh_dszins_s99\"",""63"":"" \""deleted_count\"": 57"",""64"":"" \""redelivered_count\"": 0"",""65"":"" \""load_date\"": \""2023-07-27\"",""66"":"" }"",""67"":"" {"",""68"":"" \""table_name\"": \""pc_dwh_rdv_gdh_monat.gdh_phd_izr_monthly_s99\"",""69"":"" \""deleted_count\"": 1315"",""70"":"" \""redelivered_count\"": 0"",""71"":"" \""load_date\"": \""2023-07-27\"",""72"":"" }"",""73"":""]""}}"; 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