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

/
/
gm

Test String

Code Generator

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"=\s?.*(?:((?i)Fields\(""(\w+)""\)\.Value\)*?))"; string input = @"Function lmpRoundedEndTime_ValueChanged(sender, e) If CDbl(Fields(""lmpShiftID"").Value) <> 0 And IsNull(Fields(""lmpRoundedStartTime"").Value) = False And IsNull(Fields(""lmpRoundedEndTime"").Value) = False Then If CInt(App.Props(""PN"").Fields(""xapDCPayCalculationMethod"").Value) <> 2 Then Fields(""lmpPayrollHours"").Value = App.Ax(""TimecardFunctions"").CalculateHours(Fields(""lmpShiftID"").Value,Fields(""lmpRoundedStartTime"").Value,Fields(""lmpRoundedEndTime"").Value) '''''''''''' ^ above should capture: lmpShiftID , lmpRoundedStartTime , lmpRoundedEndTime End If End If End Function Function TimecardLines_SetDefaultValues(sender, e) Dim oRs,dTimecardDate dTimecardDate = Null Set oRs = CreateObject(""ADODB.Recordset"") oRs.Open ""select lmpEmployeeID,lmpShiftID,lmpTimecardDate,lmpProjectID from Timecards where lmpTimecardID = "" + App.Convert.NumberToSql(Fields(""lmlTimecardID"").Value),Connection,adOpenStatic,adLockReadOnly,adCmdText If oRs.EOF = False Then Fields(""lmlEmployeeID"").Value = oRs.Fields(""lmpEmployeeID"").Value Fields(""lmlShiftID"").Value = oRs.Fields(""lmpShiftID"").Value Fields(""lmlProjectID"").Value = oRs.Fields(""lmpProjectID"").Value dTimecardDate = oRs.Fields(""lmpTimecardDate"").Value End If oRs.Close oRs.Open ""select top 1 lmlRoundedEndTime From TimecardLines Where lmlTimecardID = "" + App.Convert.NumberToSql(Fields(""lmlTimecardID"").Value) + "" Order By lmlRoundedEndTime Desc"",Connection,adOpenStatic,adLockReadOnly,adCmdText If oRs.EOF = False Then Fields(""lmlRoundedStartTime"").Value = oRs.Fields(""lmlRoundedEndTime"").Value Else Fields(""lmlRoundedStartTime"").Value = App.Ax(""Shift"").GetDayStartTime(Fields(""lmlShiftID"").Value, dTimecardDate, e.SqlTransaction) ' Added to to fix -rounded end time is earlier than the rounded start time error when changing the labor hours 'Fields(""lmlRoundedEndTime"").Value=Fields(""lmlRoundedStartTime"").Value End If oRs.Close If Trim(Fields(""lmlEmployeeID"").Value) <> "" Then oRs.Open ""select lmeDirectExpenseID,lmeIndirectExpenseID,lmeDefaultWorkCenterID from Employees where lmeEmployeeID = "" + App.Convert.StringToSql(Fields(""lmlEmployeeID"").Value),Connection,adOpenStatic,adLockReadOnly,adCmdText If oRs.EOF = False Then If CInt(Fields(""lmlTimecardType"").Value) = 1 Then If Trim(oRs.Fields(""lmeDirectExpenseID"").Value) <> "" Then Fields(""lmlExpenseID"").Value = oRs.Fields(""lmeDirectExpenseID"").Value End If Else If Trim(oRs.Fields(""lmeIndirectExpenseID"").Value) <> "" Then Fields(""lmlExpenseID"").Value = oRs.Fields(""lmeIndirectExpenseID"").Value End If End If If CInt(Fields(""lmlTimecardType"").Value) = 2 Then If Trim(oRs.FIelds(""lmeDefaultWorkCenterID"").Value) <> "" Then Fields(""lmlWorkCenterID"").Value = oRs.FIelds(""lmeDefaultWorkCenterID"").Value End If End If End If oRs.Close End If End Function"; 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