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

`
`
gmi

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?mi)((?<field>[a-z0-9]*)=>)(?<value>"[a-z0-9-_'/=> ]*")" Local $sString = "FldSelectAllowAdd=>"0" FldSelectFilter=>"" FldSelectFilterFld=>"" FldSelectForceSelection=>"0" FldSelectMultiple=>"0" FldSelectSize=>"" FldSelectType=>"Values"" & @CRLF & _ "FldTagLnkDisp2=>"" FldTagLnkDisplay=>"" FldTagLnkDistinct=>"0" FldTagLnkFld=>"" FldTagLnkOrderBy=>"" FldTagLnkOrderType=>"" FldTagLnkTbl=>""" & @CRLF & _ "FldTagAPrefix=>"None" FldTagASuffix=>"" FldTagATarget=>"" FldTagAType=>"" FldTagCols=>"" FldTagHiddenValue=>"" FldTagImgHeight=>"" FldTagImgWidth=>"" FldTagMaxLength=>"" FldTagRows=>"" FldTagSize=>"" FldTagValues=>""" & @CRLF & _ "FldAdd=>"0" FldAddOpt=>"1" FldAggregate=>"" FldAjax=>"0" FldAlias=>"0" FldAlign=>"" FldAlt=>"" FldAttribute=>"100" FldAutoFill=>"0" FldAutoIncrement=>"0" FldAutoUpdateValue=>""" & @CRLF & _ "FldBasicSearch=>"0" FldBold=>"0"" & @CRLF & _ "FldCaption=>"Updated At" FldCheckDuplicate=>"0" FldColumnWidth=>"" FldColumnWrap=>"0"" & @CRLF & _ "FldDefault=>"" FldDtFormat=>"7"" & @CRLF & _ "FldEdit=>"0" FldEditCustomAttributes=>"" FldEditTableField=>"" FldErrMsg=>"" FldExport=>"0" FldExtendedBasicSearch=>"0"" & @CRLF & _ "FldFmtType=>"Date/Time"" & @CRLF & _ "FldGenerate=>"1" FldGpDigits=>"-2" FldGroupBy=>"0" FldGroupByShowSummary=>"0"" & @CRLF & _ "FldHrefFld=>"" FldHrefFldOrig=>"0" FldHtmlTag=>"TEXT" FldHtmlTagReadOnly=>"0"" & @CRLF & _ "FldIncLeadDigit=>"-2" FldIsPrimaryKey=>"0" FldItalic=>"0"" & @CRLF & _ "FldList=>"0"" & @CRLF & _ "FldMax=>"" FldMemoCRLFReplace=>"0" FldMemoMaxLength=>"0" FldMin=>"" FldMultiUpdate=>"0"" & @CRLF & _ "FldNumDigits=>"0"" & @CRLF & _ "FldOrder=>"" FldOrderBy=>"0"" & @CRLF & _ "FldPageIndex=>"1" FldParentSelect=>"" FldPopCalendar=>"0"" & @CRLF & _ "FldQuoteE=>"'" FldQuoteS=>"'"" & @CRLF & _ "FldRegister=>"0" FldRepeatColumns=>"0" FldReq=>"0" FldRequired=>"0" FldResizeHeight=>"0" FldResizeQuality=>"75" FldResizeWidth=>"0" FldRptAggAvg=>"0" FldRptAggMax=>"0" FldRptAggMin=>"0" FldRptAggSum=>"0"" & @CRLF & _ "FldSearch=>"0" FldSize=>"26" FldSourceField=>"" FldSourceName=>"" FldSourceTable=>"" FldSrchOpr=>"=>" FldSrchOpr2=>"" FldStrFunc=>"" FldSupport=>"1"" & @CRLF & _ "FldTitle=>"" FldType=>"135" FldTypeName=>"TIMESTAMP"" & @CRLF & _ "FldUniqueIdx=>"0" FldUploadPath=>"" FldUploadResize=>"0" FldUseDHTMLEditor=>"0" FldUseParen=>"-2"" & @CRLF & _ "FldValidate=>"EURODATE" FldView=>"0" FldViewCustomAttributes=>"" FldViewTag=>"FORMATTED TEXT" FldViewThumbnail=>"0"" & @CRLF & _ "FldZeroLen=>"1"" & @CRLF & _ "FileNameFld=>"" FileSizeFld=>"" FileTypeFld=>""" & @CRLF & _ "ImageHeightFld=>"" ImageWidthFld=>""" & @CRLF & _ "NativeDataType=>"7"" Local $sSubst = "'${field}' => ${value}," Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst) MsgBox($MB_SYSTEMMODAL, "Result", $sResult)

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 AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm