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

   1 import Foundation
   2
   3 struct BlockerParserStrategy: MapParserStrategy {
   4   private let regex = MapParsingPatterns.blocker
   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 == 3
  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 vertexA = String(line[Range(match.range(at: 2), in: line)!])
  18
  19     if let vertex = vertices[vertexA] {
  20       let blocker = Blocker(id: index, position: vertex.position)
  21       return (Blocker.self, blocker)
  22     }
  23
  24     return (NSObject.self, NSObject())  // No matching object
  25   }
  26 }