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
Processing...

Test String

Substitution
Processing...

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"<slot-configuration slot-id=""refinebar-slot-content"" context=""category"" context-id=""(.*)"" configuration-id=""(.*?)""( default=""(?:.*)?"")? assigned-to-site=""(.*)"">\s*<template>(.*)<\/template>\s*<enabled-flag>(.*)<\/enabled-flag>\s*<content>\s*<content-assets>(\s*<content-asset content-id="".*""\/>)*\s*<content-asset content-id=""(seo-.*)""\/>\s*(?:<content-asset content-id="".*""\/>\s*)*<\/content-assets>\s*<\/content>(\s*<customer-groups>(?:\s*<customer-group group-id="".*""\/>)+\s*<\/customer-groups>|.*)?\s*<\/slot-configuration>"; string substitution = @"$0 <slot-configuration slot-id=""mobile-refinebar-slot-content"" context=""category"" context-id=""$1"" configuration-id=""$2-mobile""$3 assigned-to-site=""$4""> <template>$5</template> <enabled-flag>$6</enabled-flag> <content> <content-assets> <content-asset content-id=""$8""/> </content-assets> </content>$9 </slot-configuration>"; string input = @" <slot-configuration slot-id=""refinebar-slot-content"" context=""category"" context-id=""sport-garcon"" configuration-id=""seo-boutique-sport-garcon-2"" default=""true"" assigned-to-site=""true""> <template>slots/content/htmljustcontent.isml</template> <enabled-flag>true</enabled-flag> <content> <content-assets> <content-asset content-id=""seo-boutique-bbf-2""/> <content-asset content-id=""account-menu-content-management""/> <content-asset content-id=""seo-boutique-sport-garcon""/> </content-assets> </content> </slot-configuration> "; RegexOptions options = RegexOptions.Multiline; Regex regex = new Regex(pattern, options); string result = regex.Replace(input, substitution); } }

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