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

/
/
gm

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 = "(?m)^(?<type>build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test|¯\\_\(ツ\)_\/¯)(?<scope>\(\w+\)?((?=:\s)|(?=!:\s)))?(?<breaking>!)?(?<subject>:\s.*)?|^(?<merge>Merge \w+)" Local $sString = "## Should Pass" & @CRLF & _ "" & @CRLF & _ "build: test" & @CRLF & _ "" & @CRLF & _ "chore(topic): descriptoin" & @CRLF & _ "chore(junk): that's better" & @CRLF & _ "¯\_(ツ)_/¯: descriptoin" & @CRLF & _ "feat: some with-hyphen" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "### should pass with breaking change" & @CRLF & _ "feat!: monkeys are the best for animal testing" & @CRLF & _ "build(three)!: test" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Merge words" & @CRLF & _ "" & @CRLF & _ "### Failed to match test" & @CRLF & _ "" & @CRLF & _ "Merge" & @CRLF & _ "monkey(dog): no" & @CRLF & _ "junk" & @CRLF & _ "" & @CRLF & _ "### Partials that should fail" & @CRLF & _ "build(with colon): must include colon. <<< fails number four" & @CRLF & _ "build(one) <<< must have descriptoin and must have colon" & @CRLF & _ "feat!:dogs are better for animal testing << give me your whitespace" & @CRLF & _ "" & @CRLF & _ "build <<< thould fail, not allowed end of line" & @CRLF & _ "build(: <<< should fail " & @CRLF & _ "build(words):noSPace <<< should fail" & @CRLF & _ "build(two)asdfadfadasdf_this is a failure" & @CRLF & _ "build(<> : dda!sd): test <<< should this fail? " & @CRLF & _ "build(example:module)!: test subject <<< that should fail too" & @CRLF & _ "¯\_(ツ)_/¯[type]:descriptoin" & @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