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

Substitution

Processing...

Code Generator

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?m)set \$(\w+)\s+([^\s]+)" Local $sString = "#========= Variables =========" & @CRLF & _ "set $win Mod4" & @CRLF & _ "set $alt Mod1" & @CRLF & _ "set $ws1 "1"" & @CRLF & _ "set $ws2 "2"" & @CRLF & _ "set $ws3 "3"" & @CRLF & _ "set $ws4 "4"" & @CRLF & _ "set $ws5 "5"" & @CRLF & _ "set $ws6 "6"" & @CRLF & _ "set $ws7 "7"" & @CRLF & _ "set $ws8 "8"" & @CRLF & _ "set $ws9 "9"" & @CRLF & _ "set $ws0 "0"" & @CRLF & _ "set $bar $HOME/.config/polybar/launch.sh" & @CRLF & _ "set $locker i3lock -i $HOME/.config/i3/bg.png" & @CRLF & _ "set $term kitty" & @CRLF & _ "set $menu dmenu -i -l 10" & @CRLF & _ "set $browser qutebrowser" & @CRLF & _ "set $filemanager kitty -e ranger" & @CRLF & _ "set $launcher dmenu_run" & @CRLF & _ "set $notify_daemon dunst" & @CRLF & _ "set $notify_bar_program xob" & @CRLF & _ "set $notify_bar /tmp/xobpipe" & @CRLF & _ "set $script $HOME/.config/i3/scripts" & @CRLF & _ "set $last_action /tmp/i3/last_action" & @CRLF & _ "set $counter /tmp/i3/counter" & @CRLF & _ "set $windows /tmp/i3/windows" & @CRLF & _ "set $current_workspace i3-msg -t get_workspaces | jq -r '.[] | select(.focused==true).name'" & @CRLF & _ "#============================" & @CRLF & _ "" & @CRLF & _ "#======== Autostart =========" & @CRLF & _ "exec nm-applet" & @CRLF & _ "exec kotatogram-desktop" & @CRLF & _ "exec $browser" & @CRLF & _ "exec --no-startup-id dunst" & @CRLF & _ "#============================" Local $sSubst = "\1="\2"" 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