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

import Foundation let pattern = #"(?:\G(?!\A)|Acheminement conso)[\s\S]*?\KHeure Pleine Saison Basse"# let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines) let testString = #""" Electricité n° de\n compteur ancien\n index nouvel\n index conso\n kWh/Qté prix unitaire\n HT en euros montant HT\n en euros taux de\n TVA\n Contribution cee du 14/07/22 au 13/08/22 143020,00495 70,7920,0%\n Evolutions arenh du 14/07/22 au 13/08/22 14302-0,03149 -450,3720,0%\n Consommation du 14/07/22 au 13/08/22 154\n Heure Pleine Saison Basse 1 Heure Pleine Saison Basse 2 Heure Creuse Saison Basse 2 Acheminement conso\n kWh/Qté prix unitaire\n HT en euros montant HT\n en euros taux de\n TVA\n Composante de comptage du 1 Composante de comptage du 2 Composante de soutirage du 1 Composante de soutirage du 2 Composante de gestion 1 Composante de gestion 2 Consommation du 14/07/22 au 31/07/22 Heure Pleine Saison Basse 56200,02000 112,4020,0%\n Heure Creuse Saison Basse 26840,01700 45,6320,0%\n Consommation du 01/08/22 au 13/08/22\n Heure Pleine Saison Basse 3 Heure Creuse Saison Basse 4 Heure Pleine Saison Basse 5 Heure Pleine Saison Basse 6 Heure Pleine Saison Basse 7 Services et prestations techniques conso\n kWh/Qté prix unitaire\n HT en euros montant HT\n en euros taux de\n TVA\n Espace Client Gratuit\n Taxes et Contributions conso\n """# let stringRange = NSRange(location: 0, length: testString.utf16.count) let matches = regex.matches(in: testString, range: stringRange) var result: [[String]] = [] for match in matches { var groups: [String] = [] for rangeIndex in 1 ..< match.numberOfRanges { let nsRange = match.range(at: rangeIndex) guard !NSEqualRanges(nsRange, NSMakeRange(NSNotFound, 0)) else { continue } let string = (testString as NSString).substring(with: nsRange) groups.append(string) } if !groups.isEmpty { result.append(groups) } } 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 Swift 5.2, please visit: https://developer.apple.com/documentation/foundation/nsregularexpression