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 $sRegex = "(?m)^(?P<major>0|[1-9]\d*)\.(?P<minor>0|[1-9]\d*)(?:\.(?P<feature>0|[1-9]\d*)(?:\.(?P<commit>0|[1-9]\d*))?)?(?:\:(?P<count>0|[1-9]\d*))?(?:-(?P<prerelease>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+(?P<meta>[^~\s]*))?(?:(?P<breaks>\~[^\s]*?))?$" Local $sString = "Valid Natural Versions" & @CRLF & _ "" & @CRLF & _ "1.2" & @CRLF & _ "1.2.3" & @CRLF & _ "1.2.3.1" & @CRLF & _ "1.2:123" & @CRLF & _ "1.2.3:123" & @CRLF & _ "1.2.3.1:123" & @CRLF & _ "0.0.4.3~a.b.c" & @CRLF & _ "10.20.30.40~" & @CRLF & _ "1.1.2.3-prerelease~a.b,c;d:e+meta" & @CRLF & _ "1.1.2.4+meta" & @CRLF & _ "1.1.2.5+meta-valid" & @CRLF & _ "1.1.2.6-valid+meta" & @CRLF & _ "1.1.2.7-valid~breaks+meta" & @CRLF & _ "1.1.2.4:123+meta" & @CRLF & _ "1.1.2.5:123+meta-valid" & @CRLF & _ "1.1.2.6:123-valid+meta" & @CRLF & _ "1.1.2.7:123-valid~breaks+meta" & @CRLF & _ "1.0.0.0-alpha" & @CRLF & _ "1.0.0.1~beta" & @CRLF & _ "1.0.0.2-alpha.beta" & @CRLF & _ "1.0.0.3-alpha22~beta.1" & @CRLF & _ "1.0.0.4-alpha.1~~foo+bar" & @CRLF & _ "1.0.0.5-alpha0~broken+not" & @CRLF & _ "1.0.0.6-alpha+0.valid" & @CRLF & _ "1.0.0.7-alpha~a.b_c_somethinglong+build.1_aef.1_its_okay" & @CRLF & _ "1.0.0.8-rc.1+build.1" & @CRLF & _ "2.0.0.9-rc.1~a,b,c;d,e,f;g:h,i:j+build.123" & @CRLF & _ "1.2.3.10-beta" & @CRLF & _ "10.2.3.11-DEV-SNAPSHOT" & @CRLF & _ "1.2.3.12-SNAPSHOT-123+123~123" & @CRLF & _ "1.0.0.13" & @CRLF & _ "2.0.0.14" & @CRLF & _ "1.1.7.15" & @CRLF & _ "2.0.0.16+build.1848" & @CRLF & _ "2.0.1.17-alpha.1227" & @CRLF & _ "1.0.0.18-alpha+beta" & @CRLF & _ "1.2.3.19----RC-SNAPSHOT.12.9.1--.12+788" & @CRLF & _ "1.2.3.20----R-S.12.9.1--.12+meta" & @CRLF & _ "1.2.3.21----RC-SNAPSHOT.12.9.1--.12" & @CRLF & _ "1.0.0.22+0.build.1-rc.10000aaa-kk-0.1" & @CRLF & _ "99999999999999999999999.999999999999999999.99999999999999999.999" & @CRLF & _ "1.0.0.23-0A.is.legal" & @CRLF & _ "1.1.2.4+.123" & @CRLF & _ "9.8.7.14+meta+meta" & @CRLF & _ "9.8.7.15-whatever+meta+meta" & @CRLF & _ "1.2~~~foo" & @CRLF & _ "1.2-RC-SNAPSHOT" & @CRLF & _ "1.2+SNAPSHOT" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Invalid Natural Versions" & @CRLF & _ "" & @CRLF & _ "1" & @CRLF & _ "1.2:" & @CRLF & _ "1.2.3.4-0123" & @CRLF & _ "1.2.3.4:-0123" & @CRLF & _ "1.2.3.4-0123.0123" & @CRLF & _ "+invalid" & @CRLF & _ "-invalid" & @CRLF & _ "-invalid+invalid" & @CRLF & _ "-invalid.01" & @CRLF & _ "alpha" & @CRLF & _ "alpha.beta" & @CRLF & _ "alpha.beta.1" & @CRLF & _ "alpha.1" & @CRLF & _ "alpha+beta" & @CRLF & _ "alpha_beta" & @CRLF & _ "alpha." & @CRLF & _ "alpha.." & @CRLF & _ "beta" & @CRLF & _ "1.0.0.1-alpha_beta" & @CRLF & _ "-alpha." & @CRLF & _ "1.0.0.2-alpha.." & @CRLF & _ "1.0.0.3-alpha..1" & @CRLF & _ "1.0.0.4-alpha...1" & @CRLF & _ "1.0.0.5-alpha....1" & @CRLF & _ "1.0.0.6-alpha.....1" & @CRLF & _ "1.0.0.7-alpha......1" & @CRLF & _ "1.0.0.8-alpha.......1" & @CRLF & _ "01.1.1.9" & @CRLF & _ "1.01.1.10" & @CRLF & _ "1.1.01.11" & @CRLF & _ "1.2.3.12.DEV" & @CRLF & _ "1.2.31.2.3----RC-SNAPSHOT.12.09.1--..12+788" & @CRLF & _ "-1.0.3.13-gamma+b7718" & @CRLF & _ "+justmeta" & @CRLF & _ "~just+breaks" & @CRLF & _ "+meta~broken" & @CRLF & _ "-beta+meta~still+broken" & @CRLF & _ "99999999999999999999999.999999999999999999.99999999999999999----RC-SNAPSHOT.12.09.1--------------------------------..12" 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