let request = LCTPRequestModel(string: sampleString, attributes: sampleAttributes, containerSize: CGSize(width: 320, height: 560))
var cancel = false


let openDurationDate1 = Date()
LightComicsTextPaging.fastCalculate(request: request, isCancelled: &cancel, progress: { (progress, pagingCount) in

  print("progress: \(progress)\t|\tpagingCount: \(pagingCount)")

}, completion: { (result) in

  print("String length:\t\(result.string.count)")
  print("Number of page:\t\(result.stringRanges.count)")
  print("fastCalculate takes \(Date().timeIntervalSince(openDurationDate1)) seconds")
})

let openDurationDate2 = Date()
LightComicsTextPaging.calculate2(request: request, isCancelled: &cancel) { (result) in
  print("String length:\t\(result.string.count)")
  print("Number of page:\t\(result.stringRanges.count)")
  print("calculate2 takes \(Date().timeIntervalSince(openDurationDate2)) seconds")
}


====================================================================================
String length:	4000000
Number of page:	3748
fastCalculate takes 1.6783519983291626 seconds

String length:	4000000
Number of page:	3777
calculate2 takes 29.060243010520935 seconds
====================================================================================

/*
  result.stringRanges
  {0, 1136}
  {1136, 1077}
  {2213, 1039}
  {3252, 1005}
  {4257, 1048}
  {5305, 985}
  {6290, 1108}
  {7398, 1106}
    ...
*/