import Foundation
let pattern = #"(person\s*=\s*{[^}]*'name'\s*:\s*')(.*?)(')"#
let regex = try! NSRegularExpression(pattern: pattern, options: .dotMatchesLineSeparators)
let testString = #"""
person = {
'name' : 'Jhon Dow',
'address' : 'London',
'age' : 26,
'isMarried' : True ,
'brothersNames' : ['Kim' , 'David' , 'Ron']
}
animal = {
'type' : 'Lion',
'name' : 'Simba',
'age' : 10,
}
"""#
let stringRange = NSRange(location: 0, length: testString.utf16.count)
let substitutionString = #"\1What an ugly design\3"#
let lookupRange = (testString as NSString).range(of: pattern, options: .regularExpression, range: stringRange)
if lookupRange.intersection(stringRange) != nil {
let result = regex.stringByReplacingMatches(in: testString, range: lookupRange, withTemplate: substitutionString)
print(result)
} else {
print("No matches were found.")
}
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