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

/
/
gmx

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 = "(?mx)(?(DEFINE)" & @CRLF & _ " (?P<ver>\d+(?:\.\d+)*(?![.\d]))" & @CRLF & _ " (?P<agent>Mozilla\/(?&ver))" & @CRLF & _ "" & @CRLF & _ " (?P<os>(?&os_windows)|(?&os_linux)|(?&os_macintosh)|(?&os_ios))" & @CRLF & _ " (?P<os_windows>Windows[ ]\w+[ ](?&ver))" & @CRLF & _ " (?P<os_linux>Linux(?:[ ](?:i686|x86_64))?)" & @CRLF & _ " (?P<os_macintosh>Macintosh)" & @CRLF & _ " (?P<os_ios>(?:CPU[ ])?iPhone[ ]OS|CPU[ ]OS.*?like[ ]Mac[ ]OS[ ]X)" & @CRLF & _ "" & @CRLF & _ " (?P<device>(?&device_ios)|(?&device_firefox)|(?&device_android))" & @CRLF & _ " (?P<device_ios>iPhone|iPad)" & @CRLF & _ " (?P<device_firefox>Mobile)" & @CRLF & _ " (?P<device_android>Android(?:[ ](?&ver))?)" & @CRLF & _ "" & @CRLF & _ " (?P<browser>" & @CRLF & _ " (?:" & @CRLF & _ " (?&browser_ie)" & @CRLF & _ " | (?&browser_safari)" & @CRLF & _ " | (?&browser_chrome)" & @CRLF & _ " | (?&browser_chromium)" & @CRLF & _ " | (?&browser_firefox)" & @CRLF & _ " | (?&browser_version)" & @CRLF & _ "# | (?&browser_nexus)" & @CRLF & _ " | (?&browser_mobile)" & @CRLF & _ " | (?&browser_gsa)" & @CRLF & _ " | (?&browser_quicklook)" & @CRLF & _ " | (?&browser_opera)" & @CRLF & _ " )" & @CRLF & _ "" & @CRLF & _ " [ \/]" & @CRLF & _ "" & @CRLF & _ " (?: [A-Z\d]+\b(?!\.) | (?&ver) )" & @CRLF & _ " )" & @CRLF & _ " (?P<browser_safari>(?:Mobile[ ])?Safari)" & @CRLF & _ " (?P<browser_chrome>Chrome)" & @CRLF & _ " (?P<browser_chromium>\b\w+\b[ ]Chromium)" & @CRLF & _ " (?P<browser_firefox>Firefox)" & @CRLF & _ " (?P<browser_ie>MSIE)" & @CRLF & _ " (?P<browser_version>Version)" & @CRLF & _ " (?P<browser_nexus>Nexus[ ]\d+[ ]Build)" & @CRLF & _ " (?P<browser_mobile>Mobile)" & @CRLF & _ " (?P<browser_gsa>GSA)" & @CRLF & _ " (?P<browser_quicklook>QuickLook)" & @CRLF & _ " (?P<browser_opera>OPR)" & @CRLF & _ ")" & @CRLF & _ "^" & @CRLF & _ " (?:(?=.*?(?P<Agent>(?&agent))))" & @CRLF & _ " (?:(?=.*?(?P<OS>(?&os))))" & @CRLF & _ " (?:(?=.*?(?P<Device>(?&device))))?" & @CRLF & _ " (?:(?=.*?(?P<Browser>(?&browser)(?:[ ](?&browser))*)))?" Local $sString = "" 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