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]
  • Character class intersection
    [\w&&[^\d]]
  • 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

Code Generator

Language

Generated Code

import re regex = re.compile(r"class=\"h3 u-block\">([\d\.]+)", flags=re.MULTILINE) test_str = ("<select data-testid=\\\"price-max-select\\\"><option value=\\\"\\\">Beliebig</option><option value=\\\"500\\\">500 €</option><option value=\\\"1000\\\">1.000 €</option><option value=\\\"1500\\\">1.500 €</option><option value=\\\"2000\\\">2.000 €</option><option value=\\\"2500\\\">2.500 €</option><option value=\\\"3000\\\">3.000 €</option><option value=\\\"3500\\\">3.500 €</option><option value=\\\"4000\\\">4.000 €</option><option value=\\\"4500\\\">4.500 €</option><option value=\\\"5000\\\">5.000 €</option><option value=\\\"6000\\\">6.000 €</option><option value=\\\"7000\\\">7.000 €</option><option value=\\\"8000\\\">8.000 €</option><option value=\\\"9000\\\">9.000 €</option><option value=\\\"10000\\\">10.000 €</option><option value=\\\"11000\\\">11.000 €</option><option value=\\\"12000\\\">12.000 €</option><option value=\\\"13000\\\">13.000 €</option><option value=\\\"14000\\\">14.000 €</option><option value=\\\"15000\\\">15.000 €</option><option value=\\\"17500\\\">17.500 €</option><option value=\\\"20000\\\">20.000 €</option><option value=\\\"22500\\\">22.500 €</option><option value=\\\"25000\n" "+KLIMA+TEMPOMAT+EURO 5</span></div></div><div class=\\\"g-col-5\\\"><div class=\\\"price-block u-margin-bottom-9\\\"><span class=\\\"h3 u-block\\\">3.100&nbsp;€</span><span class=\\\"link financing-integration-lp-links\\\" data-budgetstatus=\\\"default\\\" data-prg-href=\\\"https://www.mobile.de/finanzierung/route/outlink/1?adId=361635483&amp;loanDuration=60\n" "e+KLIMA+TEMPOMAT+EURO 5</span></div></div><div class=\\\"g-col-5\\\"><div class=\\\"price-block u-margin-bottom-9\\\"><span class=\\\"h3 u-block\\\">100&nbsp;€</span><span class=\\\"link financing-integration-lp-links\\\" data-budgetstatus=\\\"default\\\" data-prg-href=\\\"https://www.mobile.de/finanzierung/route/outlink/1?adId=361635483&amp;loanDuration=60\"\n" "\"e+KLIMA+TEMPOMAT+EURO 5</span></div></div><div class=\\\"g-col-5\\\"><div class=\\\"price-block u-margin-bottom-9\\\"><span class=\\\"h3 u-block\\\">3.100&nbsp;€</span><span class=\\\"link financing-integration-lp-links\\\" data-budgetstatus=\\\"default\\\" data-prg-href=\\\"https://www.mobile.de/finanzierung/route/outlink/1?adId=361635483&amp;loanDuration=60\n" "e+KLIMA+TEMPOMAT+EURO 5</span></div></div><div class=\\\"g-col-5\\\"><div class=\\\"price-block u-margin-bottom-9\\\"><span class=\\\"h3 u-block\\\">20.100&nbsp;€</span><span class=\\\"link financing-integration-lp-links\\\" data-budgetstatus=\\\"default\\\" data-prg-href=\\\"https://www.mobile.de/finanzierung/route/outlink/1?adId=361635483&amp;loanDuration=60\"\n") matches = regex.finditer(test_str) for match_num, match in enumerate(matches, start=1): print(f"Match {match_num} was found at {match.start()}-{match.end()}: {match.group()}") for group_num, group in enumerate(match.groups(), start=1): print(f"Group {group_num} found at {match.start(group_num)}-{match.end(group_num)}: {group}")

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