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"(?<=(ch-name\">)|(?<=ch-time\">)|(?<=ch-type\">)|(?<=ch-text\">))[\s\S]*?(?=<\/)" test_str = ("<ul id=\"channelList\">\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span><!-- 1-->\n" " <span class=\"ch-time\">06:30</span><!-- 2-->\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">NBA TV</span><!-- 3-->\n" " <span class=\"ch-text\">Sacramento Kings - N.Orleans Pelicans (Basketbol)</span><!-- 4-->\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">07:45</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">TRT Spor</span>\n" " <span class=\"ch-text\">İlk Baskı (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">11:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">TRT Spor</span>\n" " <span class=\"ch-text\">Spor Manşet (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">11:05</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">NTV Spor</span>\n" " <span class=\"ch-text\">Spor Servisi (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">12:15</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">TRT Spor</span>\n" " <span class=\"ch-text\">Set-Maç-Smaç (Voleybol)</span>\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">13:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">Kanal 58</span>\n" " <span class=\"ch-text\">Sivas Bld. - Pendikspor (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">13:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">Kardelen TV</span>\n" " <span class=\"ch-text\">BB Erzurumspor - Zonguldak (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">14:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">Lig Tv</span>\n" " <span class=\"ch-text\">Futbol Gündemi (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">14:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">NTV Spor</span>\n" " <span class=\"ch-text\">Spor Aktüel (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">20:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">Tivibu Spor</span>\n" " <span class=\"ch-text\">Doğru Taktik (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">20:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">NTV Spor</span>\n" " <span class=\"ch-text\">Kırmızı Çizgi (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">20:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">A Spor</span>\n" " <span class=\"ch-text\">Beşiktaş SJ - Zielona Gora (Basketbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">20:30</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">Eurosport 2</span>\n" " <span class=\"ch-text\">Lokomotiv Kuban - Valencia Basket (Basketbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">21:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">TRT Spor</span>\n" " <span class=\"ch-text\">Futbol Keyfi (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">21:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">Tivibu Spor</span>\n" " <span class=\"ch-text\">Ters Köşe (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">22:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">TRT Spor</span>\n" " <span class=\"ch-text\">Devler Sahnesi (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">22:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">Smartspor 2</span>\n" " <span class=\"ch-text\">Aris - Banvit (Basketbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">22:15</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">Eurosport 2</span>\n" " <span class=\"ch-text\">Bilbao Basket - Khimki Moskova (Basketbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">23:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">NTV Spor</span>\n" " <span class=\"ch-text\">Spor Gecesi (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"even\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">23:30</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">TRT Spor</span>\n" " <span class=\"ch-text\">Spor Gecesi (Futbol)</span>\n" " </div>\n" " </li>\n" " <li class=\"odd\">\n" " <span class=\"ch-type\">Canlı</span>\n" " <span class=\"ch-time\">03:00</span>\n" " <div class=\"ch-desc\">\n" " <span class=\"ch-name\">NBA TV</span>\n" " <span class=\"ch-text\">Washington Wizards - Boston Celtics (Basketbol)</span>\n" " </div>\n" " </li></ul>") 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