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

Substitution

Processing...

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"((?<=""pressure""..""pressure"")[^""]+(?="")\""*[a-zA-Z]+""[,]\s+)(\d)[.](\d)(\d+)(,[^\d])(([-]\d+).(\d)(\d+)),[^\d]"; string substitution = @"\1\2\3.\4\5\7\8.\9"; string input = @"""0x03"": [ [""Q1000 LPG"", ""P94_0_00"", 0, 0, ""0x30"",""0x03"", 0, ""pressure"" ,""pressure"", [], 0.0,0.0, 0.1, ""False"", 1.5618, 0.0, 0.0, 5.0, ""[10.0, None]"", ""Lps""], [""P1000 LPG Tank"", ""P94_0_01"", 0, 1, ""0x30"",""0x03"", 0, ""pressure"", ""pressure"", [], 0.0,0.0, 0.1, ""True"", 1.5633, -1.1520, 0.0, 5.0, ""[10.0, 'None']"", ""MPa""], [""P1004 LPG Injector"", ""P94_0_02"", 0, 2, ""0x30"",""0x03"", 0, ""pressure"" ,""pressure"", [], 0.0,0.0, 0.1, ""True"", 3.1146, -2.3736, 0.0, 10.0, ""[10.0, 'None']"", ""MPa""], [""P1006 Chamber"", ""P94_0_03"", 0, 3, ""0x30"",""0x03"", 0, ""pressure"" ,""pressure"", [], 0.0,0.0, 0.1, ""True"", 3.1317, -2.3863, 0.0, 10.0, ""[10.0, 'None']"", ""MPa""], [""P1002 GOX Inlet"", ""P94_0_04"", 0, 4, ""0x30"",""0x03"", 0, ""pressure"" ,""pressure"", [], 0.0,0.0, 0.1, ""True"", 3.1276, -2.3934, 0.0, 10.0, ""[10.0, 'None']"", ""MPa""], [""P1001 GOX Supply"", ""P94_0_05"", 0, 5, ""0x30"",""0x03"", 0, ""pressure"" ,""pressure"", [], 0.0,0.0, 0.1, ""True"", 1.5622, -1.1519, 0.0, 5.0, ""[10.0, None]"", ""MPa""], [""P 06"", ""P94_0_06"", 0, 6, ""0x30"",""0x03"", 0, ""pressure"" ,""pressure"", [], 0.0,0.0, 0, ""False"", 1.5629, -1.1533, 0.0, 5.0, ""[10.0, None]"", ""MPa""], [""P 07"", ""P94_0_07"", 0, 7, ""0x30"",""0x03"", 0, ""pressure"" ,""pressure"", [], 0.0,0.0, 0, ""False"", 1.5633, -1.1548, 0.0, 5.0, ""[10.0, None]"", ""MPa""], [""P 08"", ""P94_0_08"", 0, 8, ""0x30"",""0x03"", 0, ""pressure"" ,""pressure"", [], 0.0,0.0, 0, ""False"", 1.5622, -1.1556, 0.0, 5.0, ""[10.0, None]"", ""MPa""], [""P 09"", ""P94_0_09"", 0, 9, ""0x30"",""0x03"", 0, ""pressure"" ,""pressure"", [], 0.0,0.0, 0, ""False"", 1.5605, -1.142, 0.0, 5.0, ""[10.0, None]"", ""MPa""], [""P 10"", ""P94_0_10"", 0, 10, ""0x30"",""0x03"", 0,""pressure"" ,""pressure"", [], 0.0,0.0, 0, ""False"", 3.1326, -2.4067, 0.0, 5.0, ""[10.0, None]"", ""MPa""], [""P 11"", ""P94_0_11"", 0, 11, ""0x30"",""0x03"", 0,""pressure"" ,""pressure"", [], 0.0,0.0, 0, ""False"", 3.1354, -2.4408, 0.0, 5.0, ""[10.0, None]"", ""MPa""], [""P 12"", ""P94_0_12"", 0, 12, ""0x30"",""0x03"", 0,""pressure"" ,""pressure"", [], 0.0,0.0, 0, ""False"", 3.1354, -2.4408, 0.0, 5.0, ""[10.0, None]"", ""MPa""], [""P 13"", ""P94_0_13"", 0, 13, ""0x30"",""0x03"", 0,""pressure"" ,""pressure"", [], 0.0,0.0, 0, ""False"", 3.1354, -2.4408, 0.0, 5.0, ""[10.0, None]"", ""MPa""], [""T 00"", ""M94_1_00"", 1, 0, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_00""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 01"", ""M94_1_01"", 1, 1, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_01""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 02"", ""M94_1_02"", 1, 2, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_02""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 03"", ""M94_1_03"", 1, 3, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_03""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 04"", ""M94_1_04"", 1, 4, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_04""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 05"", ""M94_1_05"", 1, 5, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_05""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 06"", ""M94_1_06"", 1, 6, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_06""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 07"", ""M94_1_07"", 1, 7, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_07""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 08"", ""M94_1_08"", 1, 8, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_08""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 09"", ""M94_1_09"", 1, 9, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_09""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 10"", ""M94_1_10"", 1, 10, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_10""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 11"", ""M94_1_11"", 1, 11, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_11""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 12"", ""M94_1_12"", 1, 12, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_12""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 13"", ""M94_1_13"", 1, 13, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_13""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 14"", ""M94_1_14"", 1, 14, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_14""], 1.0,0.0, 0.2, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 15"", ""M94_1_15"", 1, 15, ""0x30"",""0x03"", 1, ""temperature"" ,""tempTypePT100_TypeA"", [""M94_2_15""], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 373.15, ""[10.0, None]"", ""K""], [""T 00 Comp"",""M94_2_00"", 2, 0, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""], [""T 01 Comp"",""M94_2_01"", 2, 1, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""], [""T 02 Comp"",""M94_2_02"", 2, 2, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""], [""T 03 Comp"",""M94_2_03"", 2, 3, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""], [""T 04 Comp"",""M94_2_04"", 2, 4, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""], [""T 05 Comp"",""M94_2_05"", 2, 5, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""], [""T 06 Comp"",""M94_2_06"", 2, 6, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""], [""T 07 Comp"",""M94_2_07"", 2, 7, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""], [""T 08 Comp"",""M94_2_08"", 2, 8, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""], [""T 09 Comp"",""M94_2_09"", 2, 9, ""0x30"",""0x03"", 1, ""volt"" ,""volt"", [], 1.0,0.0, 0, ""False"", 1.0, 0.0, 0.0, 5.0, ""[10.0, None]"", ""V""],"; 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