import Foundation
let pattern = #"""
interface GigabitEthernet1\/(1[2-9]|[1-2][0-1]).*\n(.*\n)*.* description \*\* Unused Port \*\*.*\n(.*\n)*.* switchport access vlan 1002.*\n(.*\n)*.* switchport mode access.*\n(.*\n)*.* switchport port-security.*\n(.*\n)*.* switchport port-security mac-address sticky.*\n(.*\n)*.* shutdown.*\n(.*\n)*.* no cdp enable.*\n(.*\n)*.* spanning-tree portfast
"""#
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #"""
interface GigabitEthernet1/12
description ** Unused Port **
switchport access vlan 1002
switchport mode access
switchport port-security
switchport port-security mac-address sticky
shutdown
no cdp enable
spanning-tree portfast
!
interface GigabitEthernet1/13
description ** Unused Port **
switchport access vlan 1002
switchport mode access
switchport port-security
switchport port-security mac-address sticky
shutdown
no cdp enable
spanning-tree portfast
!
"""#
let stringRange = NSRange(location: 0, length: testString.utf16.count)
let substitutionString = #""#
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