import Foundation
let pattern = #"([\w]+)\(((\([^)]+\)),([^)]+))?\)"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
INSERT((5,elon,musk,0123456789,10000.00,analyst,abc10.gmail.com,200),employee)
INSERT((500,engineering,fortworth,1,50),department)
INSERT((50,1,tesla,1/1/20,6/1/20,0.8),project)
INSERT((20,bill,gates,0123456789,10000.00,programmer,abc10.microsoft.com,300),employee)
UPDATE((400,research,dallas-fortworth,1,50),department)
UPDATE((40,1,updatedDb,1/1/20,6/1/21,0.4),project)
UPDATE((999,bill,gates,0123456789,10000.00,programmer,abc10.microsoft.com,300),employee)
SELECT((500,engineering,abc,1,50),department)
SELECT((*,*,musk,*,*,*,*,*),employee)
SELECT((40,1,updatedDb,1/1/20,6/1/21,0.4),project)
SELECT((*,*,test,*,*,*,*,*),employee)
DELETE((30,3,empdb3,10/15/20,11/01/20,0.6),project)
DELETE((1000,*,*,*,*),department)
DELETE((999,bill,gates,0123456789,10000.00,programmer,abc10.microsoft.com,300),employee)
DISPLAY()
WRITE()
"""#
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