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

/
/
gmix

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 = "(?mix)(?>^|\s+|\W)" & @CRLF & _ " (" & @CRLF & _ " (?>[a-z]\d*|\d+[a-z]?" & @CRLF & _ " (?>\(" & @CRLF & _ " ([a-z]\d*|\d+[a-z]?)" & @CRLF & _ " \)[a-z]?" & @CRLF & _ " )?)" & @CRLF & _ " (?>\.(?>[a-z]|\d+[a-z]?))*" & @CRLF & _ " |" & @CRLF & _ " (?>M{0,4}(?>CM|CD|D?C{0,3})(?>XC|XL|L?X{0,3})(?>IX|IV|V?I{0,3}))" & @CRLF & _ " )" & @CRLF & _ "(?>\s+|\W|$)" Local $sString = "Appendix 1" & @CRLF & _ "6.48" & @CRLF & _ "CP 198" & @CRLF & _ "3.2.4 G" & @CRLF & _ "2" & @CRLF & _ "1." & @CRLF & _ "B." & @CRLF & _ "Appendix 1" & @CRLF & _ "Annex A" & @CRLF & _ "4A.10.1 and 4A.15" & @CRLF & _ "4A.21.10" & @CRLF & _ "Annex ii" & @CRLF & _ "A)" & @CRLF & _ "SECTION IV" & @CRLF & _ "52.19A" & @CRLF & _ "PRACTICE DIRECTION 83—" & @CRLF & _ "RSC ORDER 109" & @CRLF & _ "Rule 4" & @CRLF & _ "ADMINISTRATIVE COURT GUIDANCE" & @CRLF & _ "PRACTICE STATEMENT" & @CRLF & _ "THE PROTOCOL" & @CRLF & _ "C.6" & @CRLF & _ "Draft modules" & @CRLF & _ "CIS11:" & @CRLF & _ "Appendix 13(2)e" & @CRLF & _ "2002 no." & @CRLF & _ "(a)" & @CRLF & _ "L7.3.1.R" & @CRLF & _ "(iii)" & @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