public static Graph ParseGml(string fileName)
{
var graph = new Graph(new Dictionary<int, Node>(), new List<Edge>());
using (var file = new FileStream(fileName, FileMode.Open))
{
using (var sr = new StreamReader(file))
{
while (sr.EndOfStream == false)
{
var line = sr.ReadLine().Trim();
switch (line)
{
case "node":
sr.ReadLine();
var id = int.Parse(sr.ReadLine().Trim().Split(' ')[1]);
var label = sr.ReadLine().Trim().Split(' ')[1].Replace("\"", "");
graph.Nodes[id] = new Node(id, label);
sr.ReadLine();
break;
case "edge":
sr.ReadLine();
var source = int.Parse(sr.ReadLine().Trim().Split(' ')[1]);
var target = int.Parse(sr.ReadLine().Trim().Split(' ')[1]);
sr.ReadLine();
graph.Edges.Add(new Edge(source, target));
break;
}
}
}
}
return graph;
}
public Graph RemoveEdges(int[] edgeIndexes)
{
var newEdges = new List<Edge>();
for (int i = 0; i < Edges.Count; i++)
{
if(edgeIndexes.Contains(i) == false)
newEdges.Add(Edges[i]);
}
var graph = new Graph(Nodes, newEdges);
return graph;
}
