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

/
/
g

Test String

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"\s+top=""\d{1,}"".*><b>'.$enDayNames.'\s+\D+<\/b>"; string input = @" top=""241"" left=""79"" width=""105"" height=""7"" font=""3"">InnerSpace - InnerSpace: Top </text> top=""250"" left=""79"" width=""97"" height=""7"" font=""3"">25 Sexy Sci-Fi Stars 2015 (0)</text> top=""259"" left=""79"" width=""27"" height=""7"" font=""3"">HD CC[]</text> top=""268"" left=""79"" width=""27"" height=""7"" font=""3"">EXEMPT</text> top=""286"" left=""79"" width=""95"" height=""10"" font=""4"">InnerSpace - - (208)</text> top=""299"" left=""79"" width=""38"" height=""10"" font=""4"">HD CC[]</text> top=""311"" left=""79"" width=""38"" height=""10"" font=""4"">EXEMPT</text> top=""331"" left=""80"" width=""85"" height=""12"" font=""2"">Being Human - </text> top=""345"" left=""80"" width=""85"" height=""12"" font=""2"">Cheater of The </text> top=""359"" left=""80"" width=""44"" height=""12"" font=""2"">Pack (6)</text> top=""374"" left=""80"" width=""63"" height=""12"" font=""2"">HD CC DV[]</text> top=""388"" left=""80"" width=""22"" height=""12"" font=""2"">14+</text> top=""419"" left=""80"" width=""107"" height=""12"" font=""2"">Star Trek: Voyager </text> top=""434"" left=""80"" width=""103"" height=""12"" font=""2"">- Flesh And Blood, </text> <text top=""90"" left=""386"" width=""166"" height=""11"" font=""1""><b>03-AUG-2015 to 09-AUG-2015</b></text> <text top=""152"" left=""37"" width=""31"" height=""11"" font=""1""><b>06:00</b></text> <text top=""240"" left=""37"" width=""31"" height=""11"" font=""1""><b>07:00</b></text> <text top=""329"" left=""37"" width=""31"" height=""11"" font=""1""><b>08:00</b></text> <text top=""115"" left=""108"" width=""63"" height=""13"" font=""0""><b>Monday </b></text> <text top=""131"" left=""111"" width=""45"" height=""13"" font=""0""><b>Aug 03</b></text> <text top=""76"" left=""449"" width=""41"" height=""11"" font=""1""><b>SPACE</b></text> <text top=""117"" left=""324"" width=""67"" height=""11"" font=""1""><b>Wednesday</b></text> <text top=""131"" left=""337"" width=""40"" height=""11"" font=""1""><b>Aug 05</b></text> <text top=""115"" left=""439"" width=""65"" height=""13"" font=""0""><b>Thursday </b></text> <text top=""131"" left=""447"" width=""45"" height=""13"" font=""0""><b>Aug 06</b></text> <text top=""115"" left=""561"" width=""52"" height=""13"" font=""0""><b>Friday </b></text> <text top=""131"" left=""558"" width=""45"" height=""13"" font=""0""><b>Aug 07</b></text> <text top=""115"" left=""664"" width=""62"" height=""13"" font=""0""><b>Saturday </b></text> <text top=""131"" left=""670"" width=""45"" height=""13"" font=""0""><b>Aug 08</b></text> <text top=""115"" left=""780"" width=""60"" height=""13"" font=""0""><b>Sunday </b></text> <text top=""131"" left=""782"" width=""45"" height=""13"" font=""0""><b>Aug 09</b></text>"; foreach (Match m in Regex.Matches(input, pattern)) { 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