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 = #"[^\\n]+"# let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines) let testString = #"'1.266676,-2.180751,-0.943348,0.440631,1.562197,0.2483,1.667997,1.143273,-0.354614,0.025025,-2.094929,1.409416,-15.84361,-22.66174,-15.777729,-11.565274,0.184927,2.184308,-2.918847,-1.438143,-1.832789,-2.392894,-2.936923,-1.699626,-1.699626,-0.559298,-0.559298,-0.559298,-0.559298,-0.559298\n0.268223,0.088596,-0.953149,-1.344175,0.197503,4.143355,3.463934,0.289587,-0.063034,0.35563,2.322007,-13.589606,-11.883781,17.186039,-7.376517,10.132304,-4.420093,0.77321,5.358715,3.092631,0.457418,1.67359,4.545597,1.758356,1.758356,0.544843,0.544843,0.544843,0.544843,0.544843\n-4.421537,-2.864239,-3.992804,-2.769629,-0.345838,1.462282,-0.733731,-1.554252,0.376582,5.262342,7.720245,-14.295092,-14.852295,-16.991022,15.644931,14.116446,-4.67732,-6.69726,-0.406152,1.403272,-1.297639,-2.341637,-1.378868,-2.402558,-2.402558,-3.345482,-3.345482,-3.345482,-3.345482,-3.345482\n0.303624,-1.55541,-1.163894,-0.002663,1.203844,0.47408,-1.725865,-1.635311,-0.809665,1.496815,0.127842,2.615432,1.528776,-34.86355,4.610298,1.973559,-2.828502,1.598024,1.195854,0.623229,-1.526112,-0.921527,-0.346238,-0.905547,-0.905547,0.348902,0.348902,0.348902,0.348902,0.348902\n0.03196,-1.725865,-1.523449,-1.086656,-0.183773,0.516694,0.561972,0.292971,-0.183773,-0.002663,-2.048133,-13.026555,-17.415792,29.832436,3.382483,2.988304,-1.811093,0.114525,0.386189,-0.628556,-1.704558,-1.853707,-1.222488,-1.182537,-1.182537,-0.255684,-0.255684,-0.255684,-0.255684,-0.255684\n0.287644,-1.054696,-1.134597,-0.761725,0.109198,0.242367,-0.415486,-0.191763,-0.514031,0.138495,0.596595,4.54904,-4.29602,5.593082,7.870266,2.460956,1.787123,0.70313,-0.258347,0.103872,-0.26101,-0.058594,0.189099,0.713784,0.713784,-0.114525,-0.114525,-0.114525,-0.114525,-0.114525',Badminton_Smash"# 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