import Foundation
let pattern = ##"^\s*([^#][\w\d_-]+?)\[]\s*=\s*(\d+[\.,]\d+)\s*$"##
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
; This is a sample configuration file
; Comments start with ';', as in php.ini
[first_section]
one = 1
one = 3
one-two = 4
one_three = 3
five = 5.2
animal = BIRD
[first_section]
second_section[one] = "1 associated"
second_section[two] = "2 associated"
second_section[] = "1 unassociated"
second_section[] = "2 unassociated"
second_section[] = 1
second_section[] = 1,3
second_section[] = 2,2
[second_section]
path = "/usr/local/bin"
URL = "http://www.example.com/~username"
second_section[one] = "1 associated"
second_section[two] = "2 associated"
second_section[three] = 3
second_section[four] = 4.4
second_section[] = "1 unassociated"
second_section[] = "2 unassociated"
second_section[] = 1
second_section[] = 2.2
[third_section]
phpversion[] = "5.0"
phpversion[] = "5.1"
phpversion[] = "5.2"
phpversion[] = "5.3"
"""#
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