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

/
/
gimx

Test String

Code Generator

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?imx)(?(DEFINE)" & @CRLF & _ " (?<quote>['"])" & @CRLF & _ " (?<pair>" & @CRLF & _ " (?>" & @CRLF & _ " \w+" & @CRLF & _ " |(?:" & @CRLF & _ " (?<pairQuote>(?&quote))[^'"]+?\k<pairQuote>" & @CRLF & _ " )" & @CRLF & _ " )" & @CRLF & _ " \s*\:" & @CRLF & _ " )" & @CRLF & _ " (?<string>" & @CRLF & _ " (?<stringQuote>(?&quote))[\S\s]*?(?<!\\)\k<stringQuote>" & @CRLF & _ " )" & @CRLF & _ " (?<integer>\-?\d+(?:\.\d+)?(?:e[-+]\d+)?)" & @CRLF & _ " (?<scalar>true|false|null|(?&integer))" & @CRLF & _ " (?<elements>" & @CRLF & _ " \s*(?&value)" & @CRLF & _ " (?(R&array)|(?>(?:\s*\,(?&elements))|\s*))" & @CRLF & _ " )" & @CRLF & _ " (?<array>\[(?>(?&elements)|\s*)\])" & @CRLF & _ " (?<value>" & @CRLF & _ " (?&object)" & @CRLF & _ " |(?&string)" & @CRLF & _ " |(?&scalar)" & @CRLF & _ " |(?&array)" & @CRLF & _ " )" & @CRLF & _ " (?<members>" & @CRLF & _ " \s*(?&pair)\s*(?&value)" & @CRLF & _ " (?(R&object)|(?>(?:\s*\,(?&members))|\s*))" & @CRLF & _ " )" & @CRLF & _ " (?<object>\{(?&members)?\})" & @CRLF & _ ")" & @CRLF & _ "" & @CRLF & _ "\A(?&object)\Z" Local $sString = "{"menu": {" & @CRLF & _ " "header": "SVG Viewer"," & @CRLF & _ " "items": [" & @CRLF & _ " {"id": "Open"}," & @CRLF & _ " {"id": "OpenNew", "label": "Open New"}," & @CRLF & _ " null," & @CRLF & _ " {"id": "ZoomIn", "label": "Zoom In"}," & @CRLF & _ " {"id": "ZoomOut", "label": "Zoom Out"}," & @CRLF & _ " {"id": "OriginalView", "label": "Original View"}," & @CRLF & _ " null," & @CRLF & _ " {"id": "Quality"}," & @CRLF & _ " {"id": "Pause"}," & @CRLF & _ " {"id": "Mute"}," & @CRLF & _ " null," & @CRLF & _ " {"id": "Find", "label": "Find..."}," & @CRLF & _ " {"id": "FindAgain", "label": "Find Again"}," & @CRLF & _ " {"id": "Copy"}," & @CRLF & _ " {"id": "CopyAgain", "label": "Copy Again"}," & @CRLF & _ " {"id": "CopySVG", "label": "Copy SVG"}," & @CRLF & _ " {"id": "ViewSVG", "label": "View SVG"}," & @CRLF & _ " {"id": "ViewSource", "label": "View Source"}," & @CRLF & _ " {"id": "SaveAs", "label": "Save As"}," & @CRLF & _ " null," & @CRLF & _ " {"id": "Help"}," & @CRLF & _ " {"id": "About", "label": "About Adobe CVG Viewer..."}" & @CRLF & _ " ]," & @CRLF & _ " "test": [" & @CRLF & _ " "Some value"," & @CRLF & _ " 4," & @CRLF & _ " null,{}" & @CRLF & _ " ]," & @CRLF & _ " "empty_array":[-0.34E+4]" & @CRLF & _ "}}" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH) Local $aFullArray[0] For $i = 0 To UBound($aArray) -1 _ArrayConcatenate($aFullArray, $aArray[$i]) Next $aArray = $aFullArray ; Present the entire match result _ArrayDisplay($aArray, "Result")

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