blob: 79249353fedc40c5a4b3fe140e22213b5be7aa7a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
import Foundation
struct GroupParserStrategy: MapParserStrategy {
private let regex = MapParsingPatterns.group
func canHandle(line: String) -> Bool {
let range = NSRange(location: 0, length: line.utf16.count)
let matches = regex.matches(in: String(line), options: [], range: range)
return matches.count > 0 && matches[0].numberOfRanges == 3
}
func handle(index: Int, line: String, vertices: [String: Vertex]) -> (Any.Type, Any) {
let range = NSRange(location: 0, length: line.utf16.count)
let matches = regex.matches(in: String(line), options: [], range: range)
let match = matches[0]
var groupVertices: [Vertex] = []
let vertexIdString = String(line[Range(match.range(at: 2), in: line)!])
let vertexIds = vertexIdString.split(separator: " ", omittingEmptySubsequences: true).map(
String.init)
for vertexId in vertexIds {
if let vertex = vertices[vertexId] {
groupVertices.append(vertex)
}
}
if groupVertices.count > 0 {
return ([Vertex].self, groupVertices)
}
return (NSObject.self, NSObject())
}
}
|
