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 = @"\bnew\s+Array\s*[(]\s*("".*?)(?=[)]\s*,\s*new\s+Array|\s*[)]\s*[)]\s*[^(]+$)"; string input = @" mmSuggestDeliver(0, new Array(""Name"", ""Category"", ""Keywords"", ""Bias"", ""Extension"", ""IDs""), new Array(new Array(""HSBC Holdings plc (Spons. ADRs)"", ""Stocks"", ""HSBC|US4042804066|HSBC||"", ""75"", "", ""hsbc|HSBC|1|4917""),new Array(""HSBC Holdings plc"", ""Stocks"", ""|GB0005405286|||HSBA"", ""75"", "", ""hsbc-gb0005405286||1|1046""),new Array(""HSBC Trinkaus & Burkhardt AG"", ""Stocks"", ""|DE0008115106|||TUBG"", ""75"", "", ""hsbc_trinkausburkhardt||1|3774""),new Array(""HSBC Bank Malta Plc Registered Shs"", ""Stocks"", ""|MT0000030107|||"", ""75"", "", ""hsbc_bank_malta||1|16831644""),new Array(""HSBC-D7 SA de CV SIID (A)"", ""Stocks"", ""|MX51HS0Q00E8|||"", ""75"", "", ""hsbc-d7||1|5125971""),new Array(""HSBC US Buy-Out GmbH & Co. KGaA"", ""Stocks"", ""|DE000A0MM6H7|||"", ""75"", "", ""hsbc_us_buy-out_gmbhco||1|23145""),new Array(""HSBC Holdings PLC ADR Cert Deposito Arg Repr 0.5 ADRs"", ""Stocks"", ""|ARDEUT112257|||"", ""75"", "", ""hsbc_2||1|1399269""),new Array(""HSBC Holdings PLC6.2 % Pfd Shs Sponsored American Deposit Repr 1/40th 6.2 % PfdShs Ser -A-"", ""Stocks"", ""HSBC.PA|US4042806046|HSBC.PA||"", ""75"", "", ""hsbc-pa|HSBC.PA|1|19327""),new Array(""HSBC Holdings PLC 8 % Perp Sub Cap Secs 2010-Without Fixed Maturity Series -2-"", ""Stocks"", ""HSEB|US4042808026|HSEB||"", ""75"", "", ""hseb|HSEB|1|5083319""),new Array(""HSBC Holdings PLC 8 1-8 % Perpetual Sub Cap Secs 2008-Exch into Non-Cum Dollar Pref Shs"", ""Stocks"", ""HSEA|US4042807036|HSEA||"", ""75"", "", ""hsea|HSEA|1|3782270"")), 10, 0);"; 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