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

/
/
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"\DVide[[a-zA-Z]:{\d*}]" test_str = ("\"<strong>YENİ BİR MACERA</strong><br />\n" "[Video:{544774}]​<br />\n" "2005 T&uuml;rkiye G&uuml;zeli Hande Subaşı, 2012&rsquo;de evlendiği Can Tursan&rsquo;dan Mart&rsquo;ta anlaşmalı olarak boşanmıştı. Ama daha 2 hafta &ouml;nce Muğla Akyaka&rsquo;da eski kocasıyla tatil yapmış, herkesi şaşırtmıştı.<br />\n" "<br />\n" "<img style=\"width:100%\" data-url=\"{ServerPath}/images/original/2016/07/21/7835971.jpeg?w=658&amp;h=370\" src=\"//icdncube.posta.com.tr/images/original/2016/07/21/7835971.jpeg?w=658&amp;h=370\" /><br />\n" "<br />\n" "<span style=\"color:#FF0000\"><em>Hande Subaşı eski eşi Can Tursan ile 2 hafta &ouml;nce Bodrum-Akyaka&rsquo;da tatil yapmıştı.</em></span><br />\n" "U&ccedil;ankuş TV&rsquo;deki &lsquo;İki Kadın Arasında&rsquo; programının iddiasına g&ouml;re; Hande Subaşı, Can Tursan&rsquo;ı tamamen unuttu, oyuncu Rıza Kocaoğlu ile yeni bir maceraya yelken a&ccedil;tı.<br />\n" "<strong>BOY FARKI SORUN OLMAMIŞ</strong><br />\n" "<br />\n" "<img style=\"width:100%\" data-url=\"{ServerPath}/images/original/2016/07/21/7835969.jpg?w=658&amp;h=370\" src=\"//icdncube.posta.com.tr/images/original/2016/07/21/7835969.jpg?w=658&amp;h=370\" /><br />\n" "<br />\n" "Hande Subaşı ile Rıza Kocaoğlu&rsquo;nun ilişkisi G&uuml;m&uuml;şl&uuml;k&rsquo;te başladı. Ge&ccedil;tiğimiz g&uuml;nlerde birlikte eğlenirken g&ouml;r&uuml;len sevgililerin samimi oldukları s&ouml;ylendi. Rıza Kocaoğlu 1 yıllık sevgilisi Eyl&uuml;l Su Sapan&rsquo;dan 3 ay &ouml;nce ayrılmıştı.<br />\n" "<img style=\"width:100%\" data-url=\"{ServerPath}/images/original/2016/07/21/7835971.jpeg?w=658&amp;h=370\" src=\"//icdncube.posta.com.tr/images/original/2016/07/21/7835971.jpeg?w=658&amp;h=370\" /><br />\n" "[Video:{544774}]​<br />\n" "[Content:{1221834}]<br />\n" "<strong>Son bir not: Hande Subaşı&rsquo;nın boyu tam 1.80 santim, Rıza Kocaoğlu ise 1.70.</strong><br />\n" "<br />\n" "<img style=\"width:100%\" data-url=\"{ServerPath}/images/original/2016/07/21/7835970.jpeg?w=658&amp;h=370\" src=\"//icdncube.posta.com.tr/images/original/2016/07/21/7835970.jpeg?w=658&amp;h=370\" /><br />\n" "<br />\n" "[Content:{1221785}]<br />\n" "<strong>Rıza Kocaoğlu ile 3 ay &ouml;nce ayrıldığı Eyl&uuml;l Su Sapan&nbsp;</strong><br />\n" "&nbsp;\"") 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