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
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  • Anchors
  • Meta Sequences
  • Quantifiers
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  • 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"
"
gm

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)(?:(?# Pattern before filename" & @CRLF & _ " )(?:\[download\] )?Destination: (?#" & @CRLF & _ ")|(?#" & @CRLF & _ " )\[download\] (?#" & @CRLF & _ ")|(?#" & @CRLF & _ " )Adding metadata to \"(?#" & @CRLF & _ "))(?#" & @CRLF & _ ")((?# CAPTURE GROUP: filename pattern" & @CRLF & _ " )\/?[^\/\\\n]+(?:\/|\\)(?# Capture first folder" & @CRLF & _ " )(?:(?#" & @CRLF & _ " )[^\n\.]*(?# Stop capturing if point, to check" & @CRLF & _ " )(?!\.f\d{1,4}\.(?:webm|mov|mp4))(?# Checking this is not a partial download" & @CRLF & _ " )\.(?# Can now capture the point" & @CRLF & _ " ))+(?#" & @CRLF & _ " )(?:webm|mov|mp4)(?#" & @CRLF & _ "))(?#" & @CRLF & _ ")\n?" Local $sString = "=============================" & @CRLF & _ " GOOD TESTS" & @CRLF & _ "=============================" & @CRLF & _ "[download] /root/.local/share/ICONO_TESTS/1678445152615210072_0.33914607510068406/yt-videos/BURGER KLEAN - 1080.mp4 has already been downloaded" & @CRLF & _ "[download] /root/.local/share/ICONO_TESTS/small/yt-videos/hello.mp4 has already been downloaded" & @CRLF & _ "[download] /root/local/share/ICONO_TESTS/small/yt-videos/hello.mp4 has already been downloaded" & @CRLF & _ "Destination: /root/.local/share/ICONO_TESTS/1678445152615210072_0.33914607510068406/yt-videos/Hi Anxiety: Lana Condor - 1080.mp4" & @CRLF & _ "[download] Destination: /root/.local/share/ICONO_TESTS/1678445152615210072_0.33914607510068406/yt-videos/#histoire #vrai #fyp #foryou #pourtoi #fyp - NA.mp4" & @CRLF & _ "Destination: C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO in a minute or so. - 1080.webm" & @CRLF & _ "Destination: C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO in a minute or so - 1080.webm" & @CRLF & _ "Destination: C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO.webm" & @CRLF & _ "Destination: C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO_123.webm" & @CRLF & _ "Destination: C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO_1.2.3.mp4" & @CRLF & _ "xxx Destination: C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO in a minute or so - 1080.mov" & @CRLF & _ "xxx Adding metadata to "C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO in a minute or so - 1080.mov"" & @CRLF & _ "[Metadata] Adding metadata to "C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO in a minute or so - 1080.mov"" & @CRLF & _ "[Metadata] Adding metadata to "C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO in a minute or so - 1080.mov"" & @CRLF & _ "[Metadata] Adding metadata to "/home/ezalos/.local/share/ICONO_TESTS/yt-videos/ICONO in a minute or so. - 1080.mov"" & @CRLF & _ "[Metadata] Adding metadata to "/home/ezalos/.local/share/ICONO_TESTS/yt-videos/ICONO in a minute or so. - 1080.mov"" & @CRLF & _ "" & @CRLF & _ "Adding metadata to "C:\Users\Adrien\AppData\Local\ICONO\ICONO_TESTS\1678715744635004900_0.6505223019081934\yt-videos\BURGER KLEAN - 1080.mp4" & @CRLF & _ "" & @CRLF & _ "=============================" & @CRLF & _ " BAD TESTS" & @CRLF & _ "=============================" & @CRLF & _ " def test_download(browser: Chrome):" & @CRLF & _ " app_actions = AppActions(browser, test_name="test_download")" & @CRLF & _ " app_actions.screenshot()" & @CRLF & _ " for url in url_to_test:" & @CRLF & _ " file_path = app_actions.download_video(url)" & @CRLF & _ "> assert os.path.isfile(file_path)" & @CRLF & _ "E AssertionError: assert False" & @CRLF & _ "E + where False = <function isfile at 0x000002D095AFF160>('C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO in a minute or so. - 1080.f248.webm')" & @CRLF & _ "E + where <function isfile at 0x000002D095AFF160> = <module 'ntpath' from 'C:\\Users\\Adrien\\mambaforge\\envs\\ICONO-prod\\lib\\ntpath.py'>.isfile" & @CRLF & _ "E + where <module 'ntpath' from 'C:\\Users\\Adrien\\mambaforge\\envs\\ICONO-prod\\lib\\ntpath.py'> = os.path" & @CRLF & _ "Destination: C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO in a minute or so - 1080.f248.webm" & @CRLF & _ "Destination: C:/Users/Adrien/AppData/Local/ICONO/ICONO_TESTS/yt-videos/ICONO in a minute or so - 1080.f248.mov" & @CRLF & _ "DEBUG : 35954 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 0.1% of ~ 966.70KiB at 43.60KiB/s ETA 00:22 (frag 0/1)" & @CRLF & _ "DEBUG : 35954 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 0.3% of ~ 966.70KiB at 127.60KiB/s ETA 00:07 (frag 0/1)" & @CRLF & _ "DEBUG : 35954 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 0.7% of ~ 966.70KiB at 291.21KiB/s ETA 00:03 (frag 0/1)" & @CRLF & _ "DEBUG : 35954 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 1.6% of ~ 966.70KiB at 610.67KiB/s ETA 00:01 (frag 0/1)" & @CRLF & _ "DEBUG : 35954 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 3.2% of ~ 966.70KiB at 1.21MiB/s ETA 00:00 (frag 0/1)" & @CRLF & _ "DEBUG : 35954 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 6.5% of ~ 966.70KiB at 2.30MiB/s ETA 00:00 (frag 0/1)" & @CRLF & _ "DEBUG : 35954 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 13.1% of ~ 966.70KiB at 4.33MiB/s ETA 00:00 (frag 0/1)" & @CRLF & _ "DEBUG : 35954 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 26.4% of ~ 966.70KiB at 8.06MiB/s ETA 00:00 (frag 0/1)" & @CRLF & _ "DEBUG : 35954 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 52.9% of ~ 966.70KiB at 14.72MiB/s ETA 00:00 (frag 0/1)" & @CRLF & _ "DEBUG : 35955 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 100.0% of ~ 966.70KiB at 25.08MiB/s ETA 00:00 (frag 0/1)" & @CRLF & _ "DEBUG : 35955 ms [Thread 140114533140224] src.back.download.ytdlp.execute_command:25 || STDOUT: [download] 100.0% of ~ 966.70KiB at 24.67MiB/s ETA 00:00 (frag 1/1)" & @CRLF & _ "" 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