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 = @"\.(?>post|put|get|patch|delete|head|options)\((?>[\""\']?)(\/?api(?>\/\w+){0,}\/?)\w+"; string input = @""", ""/api/bike/portal/available/hours"", ""/api/bike/portal/business/status"", ""/api/bike/portal/earnings/aggregate"", ""/api/bike/portal/roles/profile""], .//2022101152_16.b89695434a4e47b29104.js:4402: return this.httpClient.get(""/api/bike/portal/lastseens/bikecompany/"" + l) .//2022101152_16.b89695434a4e47b29104.js:4407: }).join("",""))), e.length && (t = t.set(""businessStatus"", e.join("",""))), this.httpClient.get(""/api/bike/portal/bikeCompany/"" + l + ""/businesss/lastseens"", { .//2022101152_16.b89695434a4e47b29104.js:4411: return this.httpClient.get(""/api/bike/portal/"" + l + ""/metadata/dcts"") .//2022101152_16.b89695434a4e47b29104.js:6299: return this.httpClient.post(""/api/bike/portal/switching/business/noc/accept"", { this.httpClient.get(""/api/bike/portal/"" + l + ""/"" + n + ""/profile"") post(""/api/bike/portal/"" + l + ""/email/verification/response"", { .get(""/api/bike/portal/"" + l + ""/invoices"") .//2022101152_16.b89695434a4e47b29104.js:6709: return this.httpClient.delete(""/api/bike/portal/"" + l + ""/invoices/"" + n + ""/download-link"", { .//2022101152_16.b89695434a4e47b29104.js:7357: return this.httpClient.put(""/api/bike/portal/earnings/cycles/"" + l + ""/partial"", { .//2022101152_16.b89695434a4e47b29104.js:7362: return this.httpClient.head(""/api/bike/portal/business/acceptance/"" + l, { .//2022101152_16.b89695434a4e47b29104.js:7367: return this.httpClient.options(""/api/bike/portal/available/hours/"" + l, {"; 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