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"
"
g

Test String

Substitution

Processing...

Code Generator

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(\(http[s]?:\/\/[\w\-\_\.\/]*)(\n)([\w\-\_\.\/]*\))" Local $sString = "FIREVISION SPORTS features incredible Microprism Technology, which creates a" & @CRLF & _ "glowing streak of light, day or night. When you activate your FIREVISION ball" & @CRLF & _ "with a pair of cool FIREVISION Frames, you reveal a glow with a range over 100" & @CRLF & _ "feet/30 meters. The FIREVISION football is performance engineered to generate" & @CRLF & _ "spiraling streaks of light whenever you turn on your FIREVISION Frames and" & @CRLF & _ "throw it to a friend. Put glow in your game with the power of Microprism" & @CRLF & _ "Technology and the FIREVISION Football!" & @CRLF & _ "" & @CRLF & _ "![Bright blazing light!](http://images.amazon.com/images/G/01/toys/detail-" & @CRLF & _ "page/2011/B008592HH2-1.jpg)" & @CRLF & _ "" & @CRLF & _ " " & @CRLF & _ "**_FIREVISION Frames activate your ultra-bright glowing ball, day or night! " & @CRLF & _ "_**" & @CRLF & _ "" & @CRLF & _ "![No charging!](http://images.amazon.com/images/G/01/toys/detail-" & @CRLF & _ "page/2011/B008592HH2-2.jpg)" & @CRLF & _ "" & @CRLF & _ " " & @CRLF & _ "**_Battery-powered FIREVISION Frames let you play for hours without stopping to charge up the glow! " & @CRLF & _ "_**" & @CRLF & _ "" & @CRLF & _ "**Lights out! Game on!** " & @CRLF & _ "Grab a friend and fire up your game with the FIREVISION football. Glowing" & @CRLF & _ "bright, day or night, FIREVISION Football keeps you playing at the top of your" & @CRLF & _ "game! Only you and other players equipped with the awesome FIREVISION Frames" & @CRLF & _ "can see the incredible glowing path carved through the air by the FIREVISION" & @CRLF & _ "Football. Choose your team, and change the color of the glow with red or green" & @CRLF & _ "FIREVISION Frames. With a range over 100 feet/30 meters, the FIREVISION" & @CRLF & _ "Football is the ultimate ball to bring glow to your game." & @CRLF & _ "" & @CRLF & _ "**Fire up the field!** " & @CRLF & _ "Put on your FIREVISION Frames and power up to bring glow to your game. The" & @CRLF & _ "performance-engineered FIREVISION Football features awesome new Microprism" & @CRLF & _ "Technology that generates a glow, even in the light. Choose your team, and" & @CRLF & _ "change the color of the glow with red or green FIREVISION Frames. Then, pass" & @CRLF & _ "to your teammates down field up to 100 feet away, and watch the ball generate" & @CRLF & _ "an amazing streak of light the entire way. When you play with FIREVISION gear," & @CRLF & _ "you fire up the field!" & @CRLF & _ "" & @CRLF & _ "**Microprism Technology blazes with energy!** " & @CRLF & _ "Choose your team with red or green FIREVISION Frames. Whichever color you" & @CRLF & _ "choose, that’s the color your Football will glow. Put on your Frames, power" & @CRLF & _ "up, and check out the incredible glow generated by the Microprism Technology" & @CRLF & _ "embedded in your ball. With a range over 100 feet/30 meters, you’ve got the" & @CRLF & _ "power you need to fire up any game." & @CRLF & _ "" & @CRLF & _ "**What's In The Box?** " & @CRLF & _ "Football with Microprism Technology, 2 pairs of FIREVISION Frames, and" & @CRLF & _ "instructions." & @CRLF & _ "" & @CRLF & _ "![Microprism Technology blazes with" & @CRLF & _ "energy!](http://images.amazon.com/images/G/01/toys/detail-" & @CRLF & _ "page/2011/B008592HH2-3.jpg)" & @CRLF & _ "" & @CRLF & _ " " & @CRLF & _ "**_Glow with a range of more than 100 feet/30 meters!_**" & @CRLF & _ "" Local $sSubst = "\1\3" 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