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"(?:demande|incident).*(?'num_externe'INC[0-9]*).*(?:\n.*)*Nom\s*:\s*(?'ins_libl'.*\)).*(?:\n.*)*Ville\s*:\s*(?'apt_localisation'.*?)\s*(?:\n.*)*-\s*Demandeur\s*:\s*(?'apt_nom'.*?,.*?),(?'apt_telephone'.*?),.*(?:\n.*)*Cat.gorie\s*:\s*(?'tsy_lib'.*?)\s*(?:\n.*)*\s*-.*Description.*?:\s*(?:\n.*)*\s*o\s*(?'commentaire_externe'.*?)\s*\n" test_str = ("<![CDATA[ Bonjour, \n" " \n" " La facture proforma de la demande n°INC0937639 a été mise à jour Pour accéder à ce dossier de nature &quot; demande &quot;, cliquer ici . \n" " Détail des informations : \n" " - Date de création : 21/03/2019 15:51:54 \n" " - Site concerné : \n" " o Nom : RRAA COURS LA VILLE (00363800) \n" " o Etage : \n" " o Bureau : \n" " o Adresse 1 : 55 RUE GEORGES CLEMENCEAU \n" " o Adresse 2 : \n" " o Ville : COURS LA VILLE \n" " o CP : 69470 \n" " o Téléphone : 0474647881 \n" " o Fax : 0474647888 \n" " - Horaires du site : \n" " o Statut : Ouvert LP : BERNARD,franck Lu=Fermé Fermé Ma=08H30-12H00 13H30-17H45 Me=08H30-12H00 13H30-17H45 Je=08H30-12H00 14H15-17H45 Ve=08H30-12H00 13H30-17H45 Sa=08H30-12H00 Fermé Di=Fermé Fermé \n" " - Demandeur : FILLON,LOREN,0474647881, \n" " - Logisticien : \n" " o Monsieur BERNARD, franck \n" " - Equipe d'affectation :LP \n" " - Intervenant : BERNARD franck \n" " - Catégorie : MULTITECHNIQUE\\Petits travaux\\Menuiserie \n" " - Description du dossier : \n" " o Pose d'une plaque pour boucher l'ouverture sur la boite aux lettres bureau RA \n" " \n" " Pour accéder à ce dossier, cliquer ici . \n" " ]]>\n") 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