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

/
/
gmi

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

import Foundation let pattern = #"\s(L.?T.?D.?A.?|E.?I.?R.?L.?|S.?P.?A.?)|(LI?MI?T[DA]{0,3})|(S[\.\s]{0,2}?A\.?)$"# let regex = try! NSRegularExpression(pattern: pattern, options: [.anchorsMatchLines, .caseInsensitive]) let testString = #""" CONSTRUCTORA CORACEROS LIMITADA SERVICIOS EXTERNOS SARE LTDA SOCIEDAD COMERCIAL DE REPRESENTACIONES LIMITADA NGS S.A. INTERNATIONAL SERVICE LIMITADA DARTEL TALCA LIMITADA EUROMERCAD S A CARGO ENTREGA S A DE LA FUENTE Y CARPANETTI LIMITADA INGELAN CONSULTORES LIMITADA CIA INMOBILIARIA Y DE INVERSIONES TRICELTA LIMITADA CHILENA DE COMPUTACION LIMITADA ASESORIAS E INVERSIONES RPV LIMITADA SOC AGRICOLA Y GANADERA EL MEMBRILLAR LIMITADA R Y C CARGO LTDA TEJIDOS TRENZATEX LIMITADA GENIAL DISENO Y PUBLICIDAD LIMITADA ACME ANALYTICAL LABORATORIES S A SOC DE TRANSPORTES VALIJA Y CARGAS SERVIVAL LIMITADA COMERCIAL E INDUSTRIAL SAN ANGEL LIMITAD ARKADIA MUEBLES Y DECORACIONES LTDA IMPORTADORA EXPORTADORA YARDAS LIMITADA REPDEVAL EQUIPOS Y COMPANIA LIMITADA AGENCIA DE ADUANAS JORGE E. CELIS CORNEJO CIA LTDA PINTO GLAVICH INGENIERIA Y CONSTRUCCION S A PRODUCTOS MITRE LIMITADA IMPORTADORA Y COMERCIAL ALTEA LTDA COMERCIAL ICOM SPA VINA CASABLANCA S.A. LATCAM PAGOS INTERNACIONALES S.A. SERVICIOS DE MARKETING DIRECTO Y MERCHANDISING LIMITADA MONTAJES OROPESA LIMITADA AMENABAR Y ASOCIADOS TALLERES GRAFICOS S.A. SOCIEDAD SPORT TRADE LIMITADA VINA PIRAZZOLI LIMITADA OPTICA NUEVA VISION LIMITADA B & S SOLUCIONES COMPUTACIONALES LIMITADA SOC COMERCIAL PROLABI LIMITADA CENTRO DE COMUNICACIONES COPIAPO LIMITADA TECNOAYSEN LTDA COMERCIO INTERNAC REPRESENT E INV SECTRADE LIMITADA SOC GASTRONOMICA CASABLANCA LIMITADA SOC COMERC TRADE MARK LIMITADA SOC COMERCIAL E INMOBILIARIA PLASTOCK LIMITADA SOC PUBLICITARIA MORENO Y COMPANIA LIMITADA N PRODUCCIONES LIMITADA TECNOLOGIA Y SERVICIOS EN COMPRESORES LIMITADA PRODUCTOS Y SERVICIOS COMPUTACIONALES LIMITADA AERO ANDINA S A COMERCIALIZADORA BANDELSUR LIMITADA GLOVOX PRODUCCIONES LIMITADA COMERCIAL LORENA GONZALEZ RAMOS E.I.R.L. HOSPITAL & DIAGNOSTICS SUPPLIES LIMITADA APOYO EXPRESS SERVICIOS LIMITADA AGRICOLA LAS MERCEDES DEL LIMARI LIMITADA ALIMENTOS DEL NORTE LIMITADA IKONS ATN INVERSIONES LIMITADA JULIO Y NIXON LIMITADA SOC AGRICOLA Y COMERCIAL JERUSALEM LIMITADA IMAGEN Y DISENO LIMITADA XPERIENCE CONSULTORIA Y SERVICIOS COMPUTACIONALES LIMTADA SERVICIOS PUBLICITARIOS CANAL DIRECTO LIMITADA """# let stringRange = NSRange(location: 0, length: testString.utf16.count) let substitutionString = #""# let result = regex.stringByReplacingMatches(in: testString, range: stringRange, withTemplate: substitutionString) 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