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

/
/
gmi

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?mi)<a\b[^>]*href\s*=\s*"cid[^"]*"[^>]*>.*<\/a>" Local $sString = "<html>" & @CRLF & _ "<head>" & @CRLF & _ "<meta http-equiv="Content-Type" content="text/html; charset=utf-8">" & @CRLF & _ "<meta name="Generator" content="Microsoft Exchange Server">" & @CRLF & _ "<!-- converted from rtf -->" & @CRLF & _ "<style><!-- .EmailQuote { margin-left: 1pt; padding-left: 4pt; border-left: #800000 2px solid; } --></style>" & @CRLF & _ "</head>" & @CRLF & _ "<body>" & @CRLF & _ "<font face="Arial" size="2"><span style="font-size:10pt;">" & @CRLF & _ "<div>notes</div>" & @CRLF & _ "<div><font face="Calibri" size="2"><span style="font-size:11pt;"><img src="cid:0DF540471453B832E300400FF03B0900CFEC1201@1"> <a href="cid:74D8EEA6180AD131B48DC59373FABBABD7E361BB@1">GoodGEMSinstall.docx</a> </span></font></div>" & @CRLF & _ "<div><font face="Calibri" size="2"><span style="font-size:11pt;">&nbsp;</span></font></div>" & @CRLF & _ "<div><font face="Calibri" size="2"><span style="font-size:11pt;"><b>some</b> <span style="background-color:yellow;">formatted</span> <font size="6" color="red"><span style="font-size:22pt;">text</span></font></span></font></div>" & @CRLF & _ "<div><font face="Calibri" size="2" color="red"><span style="font-size:11pt;">&nbsp;</span></font></div>" & @CRLF & _ "<div><font face="Calibri" size="2"><span style="font-size:11pt;"><a href="cid:A559E9B55081418F53A3B0914D29351714C64825@1">PowerShell_transcript.20140506143510.txt</a> </span></font></div>" & @CRLF & _ "<div><font face="Calibri" size="2"><span style="font-size:11pt;">&nbsp;</span></font></div>" & @CRLF & _ "<div><font face="Calibri" size="2"><span style="font-size:11pt;"><a href="http://www.google.com"><font color="blue"><u>www.google.com</u></font></a></span></font></div>" & @CRLF & _ "<div><font face="Calibri" size="2"><span style="font-size:11pt;">&nbsp;</span></font></div>" & @CRLF & _ "<div><font face="Calibri" size="2"><span style="font-size:11pt;">some links <a href="http://www.test.fr"><font color="blue"><u>www.test.fr</u></font></a> </span></font></div>" & @CRLF & _ "<div><font face="Calibri" size="2"><span style="font-size:11pt;">&nbsp;</span></font></div>" & @CRLF & _ "</span></font>" & @CRLF & _ "</body>" & @CRLF & _ "</html>" & @CRLF & _ "" Local $sSubst = "" Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst) MsgBox($MB_SYSTEMMODAL, "Result", $sResult)

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