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

   1 // Copyright (C) 2024 Rubén Beltrán del Río
   2
   3 // This program is free software: you can redistribute it and/or modify
   4 // it under the terms of the GNU General Public License as published by
   5 // the Free Software Foundation, either version 3 of the License, or
   6 // (at your option) any later version.
   7
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program. If not, see https://map.tranquil.systems.
  15 import Foundation
  16
  17 struct BlockerParserStrategy: MapParserStrategy {
  18   private let regex = MapParsingPatterns.blocker
  19
  20   func canHandle(line: String) -> Bool {
  21     let range = NSRange(location: 0, length: line.utf16.count)
  22     let matches = regex.matches(in: String(line), options: [], range: range)
  23     return matches.count > 0 && matches[0].numberOfRanges == 3
  24   }
  25
  26   func handle(index: Int, line: String, vertices: [String: Vertex]) -> (Any.Type, Any) {
  27     let range = NSRange(location: 0, length: line.utf16.count)
  28     let matches = regex.matches(in: String(line), options: [], range: range)
  29
  30     let match = matches[0]
  31     let vertexA = String(line[Range(match.range(at: 2), in: line)!])
  32
  33     if let vertex = vertices[vertexA] {
  34       let blocker = Blocker(id: index, position: vertex.position)
  35       return (Blocker.self, blocker)
  36     }
  37
  38     return (NSObject.self, NSObject())  // No matching object
  39   }
  40 }