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
No Match

r"
"
mg

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<url>https?://(?:(?:www|forums)\.aeva\.asn\.au/forums|forums\.aeva\.asn\.au)[^\s\"<]+)" Local $sString = "Examples of URL patterns (cross linking the AEVA forum) that need conversion" & @CRLF & _ "============================================================================" & @CRLF & _ "" & @CRLF & _ "Thread ID: 756" & @CRLF & _ "http://www.aeva.asn.au/forums/forum_posts.asp?TID=132&KW=" & @CRLF & _ "" & @CRLF & _ "Thread ID: 1667" & @CRLF & _ "http://www.aeva.asn.au/forums/forum_posts.asp?TID=270" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Thread ID: 1959" & @CRLF & _ "http://www.aeva.asn.au/forums/forum_posts.asp?TID=316&PID=1958#1958" & @CRLF & _ "" & @CRLF & _ "Thread ID: 1427" & @CRLF & _ "http://www.aeva.asn.au/forums/forum_posts.asp?TID=65&KW=&PID=646#646" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Thread ID: 1997" & @CRLF & _ "http://www.aeva.asn.au/forums/forum_posts.asp?TID=161&PN=1" & @CRLF & _ "" & @CRLF & _ "Thread ID: " & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Thread ID: " & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Thread ID: " & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Thread ID: " & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Thread ID: " & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Thread ID: " & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Probably ignore these patterns, not many of them..." & @CRLF & _ "===================================================" & @CRLF & _ "Thread ID: 8573" & @CRLF & _ "<img src="http://www.aeva.asn.au/forums/smileys/smiley4.gif" border="0" />" & @CRLF & _ "" & @CRLF & _ "Thread ID: 4845" & @CRLF & _ "http://www.aeva.asn.au/forums/smileys/smiley18.gif" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "Hi Andrew, " & @CRLF & _ "<br />I cant for the life of me see how to PM. Is it enabled?" & @CRLF & _ "<br />" & @CRLF & _ "<br />Anyway, here are the conversations I started that could be re-clasified if you get a chance." & @CRLF & _ "<br />" & @CRLF & _ "<br />Cheers," & @CRLF & _ "<br />Mal." & @CRLF & _ "<br />" & @CRLF & _ "<br />Media" & @CRLF & _ "<br />" & @CRLF & _ "<br />http://www.aeva.asn.au/forums/forum_posts.asp?TID=143&KW=" & @CRLF & _ "<br />" & @CRLF & _ "<br />" & @CRLF & _ "<br />Parts and Suppliers" & @CRLF & _ "<br />" & @CRLF & _ "<br />http://www.aeva.asn.au/forums/forum_posts.asp?TID=132&KW=" & @CRLF & _ "<br />http://www.aeva.asn.au/forums/forum_posts.asp?TID=128&KW=" & @CRLF & _ "<br />http://www.aeva.asn.au/forums/forum_posts.asp?TID=113&KW=" & @CRLF & _ "<br />http://www.aeva.asn.au/forums/forum_posts.asp?TID=116&KW=" 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