git.r.bdr.sh - rbdr/map/blob - Map/Logic/MapParser/Strategies/NoteParserStrategy.swift

   1 import Foundation
   2
   3 struct NoteParserStrategy: MapParserStrategy {
   4   private let regex = MapParsingPatterns.note
   5
   6   func canHandle(line: String) -> Bool {
   7     let range = NSRange(location: 0, length: line.utf16.count)
   8     let matches = regex.matches(in: String(line), options: [], range: range)
   9     return matches.count > 0 && matches[0].numberOfRanges == 5
  10   }
  11
  12   func handle(index: Int, line: String, vertices: [String: Vertex]) -> (Any.Type, Any) {
  13     let range = NSRange(location: 0, length: line.utf16.count)
  14     let matches = regex.matches(in: String(line), options: [], range: range)
  15
  16     let match = matches[0]
  17     let text = String(line[Range(match.range(at: 4), in: line)!])
  18     let xString = String(line[Range(match.range(at: 2), in: line)!])
  19     let yString = String(line[Range(match.range(at: 3), in: line)!])
  20     let x = CGFloat(truncating: NumberFormatter().number(from: xString) ?? 0.0)
  21     let y = CGFloat(truncating: NumberFormatter().number(from: yString) ?? 0.0)
  22
  23     let note = Note(
  24       id: index,
  25       position: CGPoint(x: x, y: y),
  26       text: text
  27     )
  28
  29     return (Note.self, note)
  30   }
  31 }