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

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"(?i)([\w.]+@[\w.]+)|(?:(?:\b|[,/]\s*)(?:whatsapp|viber|wechat))+\b\s*[:：]?\s*([()+\d -]+\d)|\bline(?:\sid)?\s*(?:[:：]\s*)?@?(\w+)|((?:\+\d+[ -]?)?(?:\(\d+\)[ -]?)?\d[\d -]{5,}\d)" test_str = ("??5-yr online store ? Real pictures?? ?Mirror Quality ??1:1 ?Whatsapp/Viber +861776345378 ?spikydudewonderland@gmail.com ✈️✈️Worldwide Shipping\n\n" "Девочки это наша новая страничка.Только копии Lux, искателям дешевых подделок не беспокоить. По всем вопросам viber,whatsapp +79128743333 Лианна\n\n" "Recruitment Agents????The most powerful manufacturers,we have thebest quality.?Wechat:13255996580??Whatsapp：+8618820784535\n\n" "? เข้าช้อปทุกวันจ้า? ซื้อกับวี้ได้ของแท้แน่นอนค่า? แบรนด์อื่นสอบถามได้ค่า? ดรีวิว@reviewkayasisshopp? LINE ID : @kux1427k (มี @ ด้วยจ้า)\n\n" "Menyediakan Kacamata Termurah dengan Kualitas Super\n" "from: Surabaya\n" "Tanya / order : \n" "pin bb : 59f72347\n" "WA/SMS/Call : 082231506095\n" "Line : qurotinayunina\n\n" "?Brandname Hiend สั่งเมื่อพร้อมโอน?CFห้ามCC?ship world wide ?LINE:@candy_hiend(มี@) candy_hiend@hotmail.com\n\n" "0532 397 49 40\n" "1-877-958-5211\n" "(38)99937-7007\n" "+12345678\n" "+1234567") matches = re.finditer(regex, test_str) 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