import Foundation
let pattern = #"""
(?<callsign>\w+?)>APRS,.+?,
(?<receiver>\w+):\/
(?<time>\d{6})h
(?<latitude>\d{4}\.\d{2}[NS]).
(?<longitude>\d{5}\.\d{2}[EW]).
(?:(?<heading>\d{3})\/(?<ground_speed>\d{3}))?.*?
\/A=(?<altitude>\d{6})\s
(?:!W((?<latitude_enhancement>\d)(?<longitude_enhancement>\d))!)?
(?:v(?<version>\d+\.\d+\.\d+)(?:\.(?<platform>.+?))?\s)?
CPU:(?<cpu_load>[\d.]+)\s
RAM:(?<ram_free>[\d.]+)\/(?<ram_total>[\d.]+)MB\s
NTP:(?<ntp_offset>[\d.]+)ms\/(?<ntp_correction>[+-][\d.]+)ppm\s?
(?:(?<cpu_temperature>[+-][\d.]+)C\s*)?
(?:RF:
(?:
(?<manual_correction>[+-][\d]+)
(?<automatic_correction>[+-][\d.]+)ppm\/
)?
(?<signal>[+-][\d.]+)dB
)?
"""#
let regex = try! NSRegularExpression(pattern: pattern, options: .allowCommentsAndWhitespace)
let testString = #"""
LKHS>APRS,TCPIP*,qAC,GLIDERN2:/211635h4902.45NI01429.51E&000/000/A=001689 v0.2.4.ARM CPU:0.2 RAM:777.7/972.2MB NTP:3.1ms/-3.8ppm +33.6C RF:+62-0.8ppm/+33.66dB
Moosburg>APRS,TCPIP*,qAC,GLIDERN1:/232205h4827.52NI01155.89E&000/000/A=001397 v0.2.4.ARM CPU:0.8 RAM:788.7/1017.6MB NTP:16000.0ms/-73.4ppm RF:+8.00dB
"""#
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