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

/
/
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"^(([+]{1}[1-9]{1}[0-9]{0,2}[ ]{1}([1-9]{1}[0-9]{1,4}){1}[ ]{1}([1-9]{1}[0-9]{2,6}){1}([ -][0-9]{1,5})?)|([0]{1}[1-9]{1}[0-9]{1,4}[ ]{1}[0-9]{1,8}([ -][0-9]{1,8})?)?)" test_str = ("06429 1111\n" "06901 306180\n" "06429 231\n" "0800 3301000\n" "0179 1111111\n" "0873 376461\n" "03748 37682358\n" "05444 347687-350\n" "0764 812632-41\n" "0180 2 12334\n" "0800 5 23234213\n" "+49 6429 1111\n" "+49 39857 2530\n" "+55 11 2666-0054\n" "+300 11 2666-0054\n" "+49 641 20106 0\n" "+49 641 20106\n" "+49 30 3432622-113\n\n" "------\n\n" "+300 11 0000-0000\n" "(06442) 3933023\n" "(02852) 5996-0\n" "(042) 1818 87 9919\n" "06442 / 3893023\n" "06442 / 38 93 02 3\n" "06442/3839023\n" "042/ 88 17 890 0\n" "+49 221 - 542194 79\n" "+49 (221) - 542944 79\n" "0 52 22 - 9 50 93 10\n" "+49(0)121-79536 - 77\n" "+49(0)2221-39938-113\n" "+49 (0) 1739 906-44\n" "+49 (173) 1799 806-44\n" "0173173990644\n" "0214154914479\n" "01517953677\n" "+491517953677\n" "015777953677\n" "02162 - 54 91 44 79\n" "(02162) 54 91 44 79\n" "saddsadasdasd\n" "asdasd\n" "asdasd asdasd asd\n" "asdasd\n" "kjn asohas asdoiasd\n" "23434 234 234 23\n" "323\n" "23434 234----234\n" "///// ----\n" "// id8834 3493934 //") 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