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
Processing...

Test String

Substitution
Processing...

Code Generator

Language

Generated Code

import re regex = re.compile(r"\"(.*?)\"") test_str = "[{\"id\":596,\"_id\":\"CategoryPublication0\"},{\"id\":731,\"_id\":\"CategoryPublication1\"},{\"id\":732,\"_id\":\"CategoryPublication2\"},{\"id\":682,\"_id\":\"CategoryPublication3\"},{\"id\":585,\"_id\":\"CategoryPublication4\"},{\"id\":666,\"_id\":\"CategoryPublication5\"},{\"id\":603,\"_id\":\"CategoryPublication6\"},{\"id\":683,\"_id\":\"CategoryPublication7\"},{\"id\":584,\"_id\":\"CategoryPublication8\"},{\"id\":733,\"_id\":\"CategoryPublication9\"},{\"id\":734,\"_id\":\"CategoryPublication10\"},{\"id\":748,\"_id\":\"CategoryPublication11\"},{\"id\":652,\"_id\":\"CategoryPublication12\"},{\"id\":576,\"_id\":\"CategoryPublication13\"},{\"id\":651,\"_id\":\"CategoryPublication14\"},{\"id\":595,\"_id\":\"CategoryPublication15\"},{\"id\":750,\"_id\":\"CategoryPublication16\"},{\"id\":628,\"_id\":\"CategoryPublication17\"},{\"id\":752,\"_id\":\"CategoryPublication18\"},{\"id\":571,\"_id\":\"CategoryPublication19\"},{\"id\":629,\"_id\":\"CategoryPublication20\"},{\"id\":735,\"_id\":\"CategoryPublication21\"},{\"id\":645,\"_id\":\"CategoryPublication22\"},{\"id\":573,\"_id\":\"CategoryPublication23\"},{\"id\":711,\"_id\":\"CategoryPublication24\"},{\"id\":577,\"_id\":\"CategoryPublication25\"},{\"id\":593,\"_id\":\"CategoryPublication26\"},{\"id\":749,\"_id\":\"CategoryPublication27\"},{\"id\":578,\"_id\":\"CategoryPublication28\"},{\"id\":753,\"_id\":\"CategoryPublication29\"},{\"id\":693,\"_id\":\"CategoryPublication30\"},{\"id\":624,\"_id\":\"CategoryPublication31\"},{\"id\":604,\"_id\":\"CategoryPublication32\"},{\"id\":736,\"_id\":\"CategoryPublication33\"},{\"id\":697,\"_id\":\"CategoryPublication34\"},{\"id\":737,\"_id\":\"CategoryPublication35\"},{\"id\":605,\"_id\":\"CategoryPublication36\"},{\"id\":738,\"_id\":\"CategoryPublication37\"},{\"id\":574,\"_id\":\"CategoryPublication38\"},{\"id\":739,\"_id\":\"CategoryPublication39\"},{\"id\":579,\"_id\":\"CategoryPublication40\"},{\"id\":580,\"_id\":\"CategoryPublication41\"},{\"id\":581,\"_id\":\"CategoryPublication42\"},{\"id\":754,\"_id\":\"CategoryPublication43\"},{\"id\":575,\"_id\":\"CategoryPublication44\"},{\"id\":606,\"_id\":\"CategoryPublication45\"},{\"id\":712,\"_id\":\"CategoryPublication46\"},{\"id\":607,\"_id\":\"CategoryPublication47\"},{\"id\":608,\"_id\":\"CategoryPublication48\"},{\"id\":582,\"_id\":\"CategoryPublication49\"},{\"id\":583,\"_id\":\"CategoryPublication50\"},{\"id\":740,\"_id\":\"CategoryPublication51\"},{\"id\":572,\"_id\":\"CategoryPublication52\"},{\"id\":609,\"_id\":\"CategoryPublication53\"},{\"id\":586,\"_id\":\"CategoryPublication54\"},{\"id\":587,\"_id\":\"CategoryPublication55\"},{\"id\":594,\"_id\":\"CategoryPublication56\"},{\"id\":755,\"_id\":\"CategoryPublication57\"},{\"id\":588,\"_id\":\"CategoryPublication58\"},{\"id\":724,\"_id\":\"CategoryPublication59\"},{\"id\":653,\"_id\":\"CategoryPublication60\"},{\"id\":756,\"_id\":\"CategoryPublication61\"},{\"id\":589,\"_id\":\"CategoryPublication62\"},{\"id\":590,\"_id\":\"CategoryPublication63\"},{\"id\":698,\"_id\":\"CategoryPublication64\"},{\"id\":591,\"_id\":\"CategoryPublication65\"},{\"id\":684,\"_id\":\"CategoryPublication66\"},{\"id\":741,\"_id\":\"CategoryPublication67\"},{\"id\":1,\"_id\":\"CategoryPublication68\"},{\"id\":592,\"_id\":\"CategoryPublication69\"},{\"id\":742,\"_id\":\"CategoryPublication70\"},{\"id\":743,\"_id\":\"CategoryPublication71\"},{\"id\":713,\"_id\":\"CategoryPublication72\"}]" subst = "" result = regex.sub(subst, test_str) if result: print(result)

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