Regular Expressions 101

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  • Unit Tests (1)

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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

r"
"
gim

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 = "(?im)'\$([\d]*)[\.]?(\d+)'" Local $sString = "#Test-2019-8" & @CRLF & _ "" & @CRLF & _ "#1.'do+g'" & @CRLF & _ "dog, doooog, abcdogef," & @CRLF & _ "asdooooijk dooog asdoogghj" & @CRLF & _ "'dog', 'doooog', 'abcdogef'" & @CRLF & _ "" & @CRLF & _ "#2. 'ab*d'" & @CRLF & _ "ad, abd, abbbd" & @CRLF & _ "'ad', 'abd', 'abbbbd'" & @CRLF & _ "'sad', 'cabd', 'abbbds'" & @CRLF & _ "" & @CRLF & _ "#3. '[xy]{2}AB'" & @CRLF & _ "'xxAB', 'xyAB','yyAB' '2xxAB'" & @CRLF & _ "" & @CRLF & _ "#4. '[a-z].?'" & @CRLF & _ "'aA', 'b9', 'z' 'bX'" & @CRLF & _ "'aB z8 b6'" & @CRLF & _ "" & @CRLF & _ "#5. '5[abc]?ef'" & @CRLF & _ "'5aef', 'a5bef', '5ef' '5ef'" & @CRLF & _ "" & @CRLF & _ "#6. Taiwan ID : '([A-Z])([12])(\d{8})','[A-Z][12]\d{8}'" & @CRLF & _ "'A102926987', 'B212345678'" & @CRLF & _ "" & @CRLF & _ "#7. mobile tel_num:'(09)(\d\d)[-\s](\d{3})[-\s](\d{3})' " & @CRLF & _ "'0988 123 456', '0978-456-789'" & @CRLF & _ "# : '09\d\d[-\s]\d\d\d'" & @CRLF & _ " '0924-357'" & @CRLF & _ "" & @CRLF & _ "#8. Home tel_num:" & @CRLF & _ "# '([\(]?\d\d[\)-]?)([\d]{4})([-\s]{1}[\d]{4})' " & @CRLF & _ "'(02)2257 3150', '02-2250-3457','(12)2245 3214'" & @CRLF & _ "# '[\(]?(0[23])[\)-]?(\d{4})'" & @CRLF & _ "'(02)2345', '03-1348'" & @CRLF & _ "" & @CRLF & _ "#9. Date Time:yyyy/mm/dd " & @CRLF & _ "#'(20[12]\d)[-\/]([1]?[\d])[-\/]([1-3][\d])'" & @CRLF & _ "'2019/1/25', '2018-12-31'" & @CRLF & _ "#'(20[12]\d)[-\/]([01]\d)[-\/](\d{2})'" & @CRLF & _ "'2019/01/15' ,'2020-11-28'" & @CRLF & _ "" & @CRLF & _ "#10. floating number: '\$([\d]*)[\.]?(\d+)'" & @CRLF & _ "'$123.34', '$2345' '$0.234' ,'1.87'" & @CRLF & _ "" & @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