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

/
/
gmu

Test String

Code Generator

Language

Generated Code

import Foundation // WARNING: You included a flag that Swift doesn't support: u // When this flag is set, it makes the pattern and subject strings to be treated as unicode. // Swift already treats the pattern and subject strings as unicode by default, so including this flag is redundant. let pattern = #"^(\p{Lu}+)\h+(.*(?:\R(?!\p{Lu}+\h).*)*)"# let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines) let testString = #""" ОБАНДОМ آباندام маљ. обпайкар, нозукан- дом, латифбадан. FБАФКАН آبافكن муњаррики обафкан, даст- гоњи обпошї. БАНЉИР انجير آب обе, ки дар он анљири ќоќ ва хушкро мељӯшонанд ва он хусусияти табобатї дорад. ӮББАДАЛ بدل آب муовизаи об, табдили об. ТББАНД بند آب 1. он ки дар пеши об банд ё дарѓот месозад. 2. банд, дарѓот. ОББАР بر آب 1. он ки об мебарад, обкаш, маш- коб. 2. маљ. маъшуќ, ки тавассути њуснаш обрўи ошиќи худро зери хавфи коҳиш мегузорад. 3. тех. облўла, лўлаи обрасонї, ќубури обгузар. ЗББАРДОР آببردار 1. обро ба худ гиранда, он чи зиёд об талаб мекунад, обталаб; биринљи оббардор. 2. ниг. обчинак. ҚББАРДОРЇ آببرداري 1. обкашї, машкобї. 2. об бардоштани чизе (мас., биринљ). """# 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