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

Code Generator

Language

Generated Code

import re regex = re.compile(r"=\s?.*(?:((?i)Fields\(\"(\w+)\"\)\.Value\)*?))", flags=re.MULTILINE) test_str = ("Function lmpRoundedEndTime_ValueChanged(sender, e)\n" "If CDbl(Fields(\"lmpShiftID\").Value) <> 0 And IsNull(Fields(\"lmpRoundedStartTime\").Value) = False And IsNull(Fields(\"lmpRoundedEndTime\").Value) = False Then\n" " If CInt(App.Props(\"PN\").Fields(\"xapDCPayCalculationMethod\").Value) <> 2 Then\n" " Fields(\"lmpPayrollHours\").Value = App.Ax(\"TimecardFunctions\").CalculateHours(Fields(\"lmpShiftID\").Value,Fields(\"lmpRoundedStartTime\").Value,Fields(\"lmpRoundedEndTime\").Value)\n" "'''''''''''' ^ above should capture: lmpShiftID , lmpRoundedStartTime , lmpRoundedEndTime\n" " End If\n" "End If\n" "End Function\n\n" "Function TimecardLines_SetDefaultValues(sender, e)\n" " Dim oRs,dTimecardDate\n" " dTimecardDate = Null\n" " Set oRs = CreateObject(\"ADODB.Recordset\")\n" " oRs.Open \"select lmpEmployeeID,lmpShiftID,lmpTimecardDate,lmpProjectID from Timecards where lmpTimecardID = \" + App.Convert.NumberToSql(Fields(\"lmlTimecardID\").Value),Connection,adOpenStatic,adLockReadOnly,adCmdText\n" " If oRs.EOF = False Then\n" " Fields(\"lmlEmployeeID\").Value = oRs.Fields(\"lmpEmployeeID\").Value\n" " Fields(\"lmlShiftID\").Value = oRs.Fields(\"lmpShiftID\").Value\n" " Fields(\"lmlProjectID\").Value = oRs.Fields(\"lmpProjectID\").Value\n" " dTimecardDate = oRs.Fields(\"lmpTimecardDate\").Value\n" " End If\n" " oRs.Close\n" " \n" " oRs.Open \"select top 1 lmlRoundedEndTime From TimecardLines Where lmlTimecardID = \" + App.Convert.NumberToSql(Fields(\"lmlTimecardID\").Value) + \" Order By lmlRoundedEndTime Desc\",Connection,adOpenStatic,adLockReadOnly,adCmdText\n" " If oRs.EOF = False Then\n" " Fields(\"lmlRoundedStartTime\").Value = oRs.Fields(\"lmlRoundedEndTime\").Value\n" " Else\n" " Fields(\"lmlRoundedStartTime\").Value = App.Ax(\"Shift\").GetDayStartTime(Fields(\"lmlShiftID\").Value, dTimecardDate, e.SqlTransaction)\n" " ' Added to to fix -rounded end time is earlier than the rounded start time error when changing the labor hours\n" " 'Fields(\"lmlRoundedEndTime\").Value=Fields(\"lmlRoundedStartTime\").Value \n" " \n" " End If\n" " oRs.Close\n\n" " If Trim(Fields(\"lmlEmployeeID\").Value) <> \"\" Then\n" " oRs.Open \"select lmeDirectExpenseID,lmeIndirectExpenseID,lmeDefaultWorkCenterID from Employees where lmeEmployeeID = \" + App.Convert.StringToSql(Fields(\"lmlEmployeeID\").Value),Connection,adOpenStatic,adLockReadOnly,adCmdText\n" " If oRs.EOF = False Then\n" " If CInt(Fields(\"lmlTimecardType\").Value) = 1 Then\n" " If Trim(oRs.Fields(\"lmeDirectExpenseID\").Value) <> \"\" Then\n" " Fields(\"lmlExpenseID\").Value = oRs.Fields(\"lmeDirectExpenseID\").Value\n" " End If\n" " Else\n" " If Trim(oRs.Fields(\"lmeIndirectExpenseID\").Value) <> \"\" Then\n" " Fields(\"lmlExpenseID\").Value = oRs.Fields(\"lmeIndirectExpenseID\").Value\n" " End If\n" " End If\n" " If CInt(Fields(\"lmlTimecardType\").Value) = 2 Then\n" " If Trim(oRs.FIelds(\"lmeDefaultWorkCenterID\").Value) <> \"\" Then\n" " Fields(\"lmlWorkCenterID\").Value = oRs.FIelds(\"lmeDefaultWorkCenterID\").Value\n" " End If\n" " End If\n" " End If\n" " oRs.Close\n" " End If\n" "End Function") matches = regex.finditer(test_str) for match_num, match in enumerate(matches, start=1): print(f"Match {match_num} was found at {match.start()}-{match.end()}: {match.group()}") for group_num, group in enumerate(match.groups(), start=1): print(f"Group {group_num} found at {match.start(group_num)}-{match.end(group_num)}: {group}")

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 Python, please visit: https://docs.python.org/3/library/re.html