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

r"
"
gm

Test String

Code Generator

Language

Generated Code

import Foundation let pattern = ##"(?P<Ano>[2018]+)\|(?P<Mes>[A-Za-z]+)\|(?P<RamGrl>[A-Za-z\s]+)\|(?P<Suc>[\w\s]+)\|(?P<Ofn>[\w\s\d\(\)\-\.\&\,]+)\|(?P<Pmt>[\w\s\d\(\)\-\.\,\¥\*\%\&\Ü\Ñ]+)\|(?P<Agente>[\w\d\s\.\,\¥\¤\$\&\%\-]+)\|(?P<Mon>[A-Za-z]+)\|(?P<SucEmi>[\w\s\.\-\(\)]+)\|(?P<RamoEmi>[\w\s\.\/]+)\|(?P<Poliza>[0-9]+)\|(?P<FecFinVig>[\d\/]+)\|(?P<Cliente>()|[a-zA-ZÀ-ÖØ-öø-ÿ\s\.\,\-\*\'\%\d\&\¥\¤\!\¡\+\`\´\#\(\)\;\€\"\­\¨\:\_\@\‘\Ã\.+]+)\|(?P<StaMc>[\w\d]+)\|(?P<FecMC>[\d\/]+)\|(?P<NoAPet>[MSX]+)\|(?P<Renovadas>[\d]+)\|(?P<Observaciobnes>(()|[a-zA-ZÀ-ÖØ-öø-ÿ\d\s\.\,\:\+\(\)\¥\¤\-\#\;\&\$\*\%\'\/\´\!\@\"\‘\Ã])+)\|(?P<Motivo>[S/C]+)\|(?P<PrimaEmi>[\-\d]+)\|(?P<PrimaCob>[0-9]+)\|(?P<Siniestros>[\d\-]+)\|(?P<PolizaNva>[0-9]+)\|(?P<FecRenovacion>[\d\/]+)\|(?P<PrimaDRenov>[0-9]+)\|(?P<CobranzaDRen>[0-9]+)\|"## let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines) let testString = #""" 2018|Feb|AUTOS|MATRIZ|OFICINA MATRIZ|ARMANDO LEON PTACNIK|ARMANDO LEON HERNANDEZ 4684|DLL|ARMANDO L. PTAN|TURISTAS|1067|17/02/2018|ALONSO HERNANDEZ ZAZUETA €|X|01/01/2000|X|45||S/C|368|368|0|0|01/01/2000|0|0| 2018|Feb|AUTOS|MATRIZ|OFICINA MATRIZ|ARMANDO LEON PTACNIK|ARMANDO LEON HERNANDEZ 4684|DLL|ARMANDO L. PTAN|OBLIGATORIO TURISTAS|1067|17/02/2018|ALONSO HERNANDEZ ZAZUETA €|X|01/01/2000|X|45||S/C|1|1|0|0|01/01/2000|0|0| 2018|Mar|AUTOS|MATRIZ|OFICINA MATRIZ|ARMANDO LEON PTACNIK|ARMANDO LEON HERNANDEZ 4684|NAL|ARMANDO L. PTAN|MOTOCICLETAS|187|15/03/2018|ALONSO HERNANDEZ ZAZUETA €|R000216|12/03/2018|S|45|POLIZA YA RENOVADA|S/C|901|901|0|216|12/03/2018|797|0| 2018|Mar|AUTOS|MATRIZ|OFICINA MATRIZ|ARMANDO LEON PTACNIK|ARMANDO LEON HERNANDEZ 4684|NAL|ARMANDO L. PTAN|OBLIGATORIO MOTOCICLETAS|187|15/03/2018|ALONSO HERNANDEZ ZAZUETA €|X|01/01/2000|X|45||S/C|14|14|0|0|01/01/2000|0|0| 2018|Jul|AUTOS|MATRIZ|OFICINA MATRIZ|OFICINA MATRIZ|ROQUE ALONSO P Y ASOCIADOS AGENTE DE SEGUROS Y DE FIANZAS SA DE CV 9761|NAL|MATRIZ|SEGURO DE AUTOMOVILES|767608|07/07/2018|GUSTAVO MONTAÑO ALVAREZ|S806612|19/06/2018|X|0|RENOVADA X NUMERO DE SERIE GUSTAVO MONTAÑO ALVAREZ|S/C|13395|11721|0|0|01/01/2000|0|0| """# 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