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"
"
mg

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"((\+|\+\s|\d{1}\s?|\()(\d\)?\s?[-\.\s\(]??){8,}\d{1}|\d{3}[-\.\s]??\d{3}[-\.\s]??\d{4}|\(\d{3}\)\s*\d{3}[-\.\s]??\d{4}|\d{3}[-\.\s]??\d{4})" test_str = (" +61 2 8249 5000\n" " +61 2 6122 5100\n" " +61 2-9407 5247\n" " +65-8233-6124\n" " +61 412 364 923\n" " 1300 890 902\n" " 0435 569 072\n" " 8801911384785\n" " 0086-010-58732690\n" " + 852 2118 3893\n" " (852) 2513 3168\n" " (852) 2865-9898\n" " +91-9552503220\n" " +914042024714\n" " +919948298078\n" " +91 22 25094755\n" " 0124 4742300\n" " +1 (972)273 0738\n" " 08111 90 1859\n" " +62-21-5201214\n" " +62 21 2995 1641\n" " 603-4270 2309\n" " +603 7724 1199\n" " +603-77108288\n" " +632 8937377\n" " (65) 6723 6888\n" " +6596233196\n" " +656379 2681\n" " +65 6737 0324\n" " 82-70-7791-7100\n" " +82 17 238 1226\n" " 82-31-478-4506\n" " +822-6309-6366\n" " (000)000-0000 \n" " (000)000 0000 \n" " (000)000.0000\n" " (000) 000-0000\n" " (000) 000 0000 \n" " (000) 000.0000 \n" " 0000000000\n" " (000)0000000\n\n" " (000)000-0000 \n" " (000)000 0000 \n" " (000)000.0000\n" " (000) 000-0000\n" " (000) 000 0000 \n" " (000) 000.0000 \n" " 000-0000 \n" " 000 0000 \n" " 000.0000 \n" " 0000000 \n" " 0000000000 \n" " (000)0000000") 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