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

Substitution

Processing...

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"(<text.*?<\/text>)"; string substitution = @""; string input = @"var svgstring = '<g font-size=""1.6"" font-family=""DejaVu Sans"" stroke=""none"" fill=""#000000""><rect x=""254.01"" y=""50.00"" width=""29"" height=""2.24"" stroke=""#053581"" stroke-width=""0.1"" fill=""#b2b8c3""></rect><text x=""254.21"" y=""51.6"" font-size=""1.6"" font-weight=""700"" font-family=""DejaVu Sans"" stroke=""none"" fill=""#000000"">Cav.</text><text x=""259.21"" y=""51.6"" font-size=""1.6"" font-weight=""700"" font-family=""DejaVu Sans"" stroke=""none"" fill=""#000000"">Wire</text><text x=""267.21"" y=""51.6"" font-size=""1.6"" font-weight=""700"" font-family=""DejaVu Sans"" stroke=""none"" fill=""#000000"">Colour</text><text x=""274.21"" y=""51.6"" font-size=""1.6"" font-weight=""700"" font-family=""DejaVu Sans"" stroke=""none"" fill=""#000000"">Gauge</text><rect x=""254.01"" y=""52.24"" width=""29"" height=""2.24"" stroke=""#053581"" stroke-width=""0.1"" fill=""#ffffff""></rect><text x=""254.21"" y=""53.84"" fill=""#000000""> 1</text><text x=""259.21"" y=""53.84"" fill=""#000000""> FPTO-20..</text><rect x=""267.01"" y=""52.34"" width=""7"" height=""2.04"" stroke-width=""0.01"" fill=""#C1D5D9""></rect><text x=""267.21"" y=""53.84"" fill=""#000000"">GY</text><text x=""274.21"" y=""53.84"" fill=""#000000""> 0.75</text><rect x=""254.01"" y=""54.48"" width=""29"" height=""2.24"" stroke=""#053581"" stroke-width=""0.1"" fill=""#fff8c6""></rect><text x=""254.21"" y=""56.08"" fill=""#000000"">2</text><text x=""259.21"" y=""56.08"" fill=""#000000"">FPTO-20..</text><rect x=""267.01"" y=""54.58"" width=""7"" height=""2.04"" stroke-width=""0.01"" fill=""#EDEDED""></rect><text x=""267.21"" y=""56.08"" fill=""#000000"">WH</text><text x=""274.21"" y=""56.08"" fill=""#000000"">0.75</text><line x1=""259.01"" y1=""50.00"" x2=""259.01"" y2=""56.72"" stroke=""#053581"" stroke-width=""0.1"" fill=""#053581""></line><line x1=""267.01"" y1=""50.00"" x2=""267.01"" y2=""56.72"" stroke=""#053581"" stroke-width=""0.1"" fill=""#053581""></line><line x1=""274.01"" y1=""50.00"" x2=""274.01"" y2=""56.72"" stroke=""#053581"" stroke-width=""0.1"" fill=""#053581""></line></g>' "; Regex regex = new Regex(pattern); 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