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"
"
gm

Test String

Code Generator

Language

Generated Code

# coding=utf8 # the above tag defines encoding for this document and is for Python 2.x compatibility import re regex = r"<(.+)\|\(Instagram\)>" test_str = "\"\\u201cUNLIMITED LIVE\\u201d world tour moved to 2021!\\nDue to the Covid-19 pandemic and the subsequent regulations and concert restrictions, the world tour, originally planned for the autumn of 2020, could not take place. \\n\\\"\\u201eI was very much looking forward to our tour in autumn 2020 all over the world, so I\\u2019m deeply sorry that these concerts had to be rescheduled due to the Covid-19 pandemic. I\\u2019m very happy that we have already found new dates for our tour in autumn 2021, because I cannot wait to return to get back on stage and to play for you guys. Take care of yourselves \\u2013 I hope to see you all happy and healthy again very, very soon!\\u201d \\nAll your tickets remain valid for the new dates! Please find them below: \\n\\nKAZ Almaty - Sep 11, 2021\\nRUS Yekaterinburg - Sep 14, 2021\\nRUS Kazan, Sep 16, 2021\\nRUS Voronezh - Sep 18, 2021\\nRUS Krasnodar - Sep 20, 2021\\nRUS Moscow - Sep 22, 2021\\nRUS St. Petersburg - Sep 24, 2021\\nUKR Kharkiv - Sep 26 2021\\nUKR Odessa - Sep 28, 2021\\nUKR Kiev - Sep 30, 2021\\nITA Bolzano - Oct 13, 2021\\nITA Bologna - Oct 15, 2021\\nITA Genoa - Oct 16, 2021\\nITA Milano - Oct 17, 2021\\nITA Conegliano Veneto - Oct 19, 2021\\nBG Sofia - Oct 24, 2021\\nRO Bucharest - Oct 26, 2021\\nRO Cluj - Oct 29, 2021 #davidgarrett #tour2021 #unlimited #live #postponed\\n*Score* -2.57x | *Likes* 338 (-830) | *Comments* 13 (-46)\\n_Posted on Tuesday, August 18 at 9:59 AM CEST <https://www.instagram.com/p/CEBew-xHwhJ/|(Instagram)>_\\n_Received via Viral Alert_\"" matches = re.finditer(regex, test_str, re.MULTILINE) for matchNum, match in enumerate(matches, start=1): print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group())) for groupNum in range(0, len(match.groups())): groupNum = groupNum + 1 print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum))) # Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.

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 Python, please visit: https://docs.python.org/3/library/re.html